🇲🇽 2026 Mexico AFORE Calculator: IMSS Pension & Ley 73 vs 97
The only free English-language AFORE calculator built for cross-border retirement: Compare IMSS Ley 73 vs. 1997 regimes, track your required semanas cotizadas, model Modalidad 40 investment returns, optimize SAT Article 151 aportaciones voluntarias (ISR tax deductions), and map the US-Mexico Totalization Agreement against MXN/USD currency risk.
| Year | Employer Rate | Annual Employer Deposit (MXN) | Worker + Gov | Total Annual |
|---|
Enter your profile to see your projected AFORE balance at retirement — with the 2021–2030 phased employer contribution schedule applied year-by-year, your auto-selected SIEFORE Generacional return, and contribution density adjustment.
Enter your IMSS weeks, salary history, and AFORE balance to compare the LSS-1973 defined-benefit pension vs. the LSS-1997 AFORE annuity — with an automatic “optimal choice” recommendation and peso-per-month advantage.
1. Minimum Guaranteed Pension (MGP) — insufficient AFORE balance
2. 100% Salary Match (July 2024) — pension < salary, up to MXN $16,777 cap
3. No guarantee — AFORE annuity is adequate
| Year | Min. Weeks Required | Your Projected Weeks | Status |
|---|
Enter your weeks cotizadas and AFORE balance to determine which Pensión Garantizada tier applies to you — including the 2024 100% salary match guarantee and the 2026–2031 escalating weeks requirement.
| Year | Employer Rate | Avg Salary (MXN) | Monthly Cost | Annual Cost | Increase vs. 2021 |
|---|
Enter your income and voluntary contribution to see your immediate ISR refund, net out-of-pocket cost, and tax-adjusted effective return — plus the employer cost impact of the 2020 reform phase-in through 2030.
| Scenario | MXN Rate at Retirement | Pension in MXN (Real) | Pension in USD |
|---|
Model MXN/USD currency scenarios, check retirement budget adequacy for your target city, and estimate binational benefits under the US-Mexico totalization agreement.
Have the following information ready before you open the calculator. You don’t need every item for every tab — but the more accurate your inputs, the more reliable your projections.
-
Your Birth YearUsed for automatic SIEFORE Generacional fund selection. The calculator picks your default net real return rate based on your age group.
-
Year You Started Contributing to IMSSDetermines if you qualify for the LSS-1973 transition regime. Critical for Tab 2 — before July 1, 1997 = transition eligible.
-
Current Monthly Gross Salary (MXN)Your Salario Base de Cotización (SBC). Find this on your IMSS payslip or Comprobante de Nómina. Used to calculate employer, worker, and government contributions.
-
Current AFORE Balance (MXN)Log into your AFORE account online, use the CONSAR Mi Cuenta portal at consar.gob.mx, or check your most recent AFORE statement sent by mail or email.
-
Total IMSS Weeks Cotizadas (Semanas Cotizadas)Your cumulative contribution weeks since you first registered with IMSS. Find this on your Hoja Rosada or via the IMSS online portal. Required for Tabs 2 and 3.
-
Target Retirement Age (60, 65, or 70)The age you plan to stop working. Age 65 is the standard IMSS retirement age. Age 60 qualifies for retiro anticipado (early retirement) at a reduced benefit, subject to minimum weeks.
-
Contribution Density Estimate (%)The percentage of your working years you were actively contributing to IMSS. 100% = always formal employed. 60% = significant informal or self-employed periods. Check your IMSS record for accuracy.
-
Annual Gross Income in MXN (for ISR Tab)Your annual pre-tax income. Required only for Tab 4 (ISR Optimizer) to calculate your marginal tax bracket and determine the immediate ISR refund from voluntary AFORE contributions.
What You Enter
IMSS start year
Monthly salary (MXN)
AFORE balance
Retirement age
Contribution density %
Voluntary contribution
Return override %
Applies year-by-year
employer rate (2026–2030)
Compounds real return
Adjusts for density
Monthly pension (MXN)
Monthly pension (USD)
Phase-in table
Balance growth chart
The 2021–2030 Phase-In: Why It Matters
The 2020 pension reform gradually increases employer contributions from 5.15% in 2021 to 15.00% by 2030. The calculator applies the exact rate for each calendar year — not a fixed average — so your projection precisely reflects the reform’s real impact on your balance.
| Year | Employer Rate | vs. Pre-Reform |
|---|---|---|
| 2021 | 5.150% | Baseline |
| 2023 | 7.496% | +2.35% |
| 2026 | 11.015% | +5.87% |
| 2028 | 13.361% | +8.21% |
| 2030+ | 15.000% | +9.85% (3× pre-reform) |
Toggle “Before July 1997” to unlock the LSS-1973 calculation. If you select “After July 1997,” the tab shows LSS-1997 only and explains why the old regime is not available.
Input your current age, total semanas cotizadas (IMSS weeks), average salary over the last 5 years (MXN), current AFORE balance, years until retirement, and expected AFORE return rate.
The calculator compares both pensions and displays a color-coded winner card — Navy = LSS-1973 wins, Green = LSS-1997 wins — with the exact peso-per-month advantage quantified.
The winning regime gets a green border and background highlight. Each card shows the monthly pension, the calculation basis (salary/weeks formula vs. AFORE annuity factor), and replacement rate versus your pre-retirement salary.
How Each Pension Is Calculated
Factor = min(90%, Years of Service × 1.5%). Requires 500+ weeks minimum.
270 = actuarial annuity factor for age 65. Balance grows to retirement at your AFORE return rate.
The Pensión Garantizada is Mexico’s minimum pension guarantee. The 2024 reform introduced three distinct tiers — the calculator determines exactly which tier applies to your situation and shows the escalating weeks requirement through 2031.
Applies when your AFORE balance is insufficient to fund a pension above the floor. Fixed at MXN 7,500/month (2026), indexed to UMA annually.
If your pension is below your pre-retirement salary, the government tops up to 100% of salary — up to the MXN 16,777/month cap.
Your AFORE annuity already exceeds both the MGP floor and your pre-retirement salary. No government top-up is required.
The minimum weeks to qualify for the guarantee increases every year. The calculator shows a 6-year table so you can track whether you’ll meet the threshold by your retirement year.
What the Results Screen Shows
ISR Tax Optimizer — Voluntary Contributions
Voluntary AFORE contributions (Aportaciones Voluntarias) are deductible from ISR (Mexico’s income tax) up to 10% of annual income or 5 UMAs annually — whichever is lower. This tool calculates your immediate tax refund on each peso you contribute voluntarily, making the net cost significantly lower than the nominal contribution.
Your total annual pre-tax income in MXN. The calculator applies the 2026 ISR brackets (12 bands from 1.92% to 35%) to find your marginal rate.
The amount you want to add on top of mandatory contributions. Even MXN 500–2,000/month generates a meaningful ISR refund at middle-income brackets.
See your immediate ISR savings, your net out-of-pocket cost (contribution minus refund), and your tax-adjusted effective AFORE return — always higher than the nominal SIEFORE return.
Employer AFORE Cost Planner — 2020 Reform
Total headcount that receives IMSS-registered salary. The model applies to all registered employees — freelancers on honorarios are not included.
Average monthly gross salary per employee (MXN), plus an annual salary growth assumption (0% to 8%). Growth compounds both salary and the rising employer rate simultaneously.
A year-by-year table shows monthly cost, annual cost, and the percentage increase versus the 2021 baseline — helping you budget for each transition year.
Models three MXN/USD exchange rate paths (optimistic, base, pessimistic) at your retirement date. Shows your pension in both real MXN (inflation-adjusted) and USD at each scenario — critical for expats and dual-country workers.
- Enter current MXN/USD rate (default 17.20)
- Set MXN and USD inflation assumptions
- See 3-scenario currency table + bar chart
Compares your projected pension against the monthly budget needed in your target retirement city. Six cities pre-loaded: CDMX, Guadalajara, Monterrey, Mérida, San Miguel de Allende (expat), Oaxaca (affordable).
For workers with careers split between Mexico and the United States. Estimates combined monthly income from both IMSS/AFORE and US Social Security using the 1978 US-Mexico Totalization Agreement.
PDF Report
Click the PDF Report button (available in Tabs 1 and 5) to generate a formatted multi-section PDF containing all your inputs, calculation results, phase-in tables, and chart data. Built with jsPDF + AutoTable — no server upload, no data stored. The PDF is generated entirely in your browser and saved directly to your device.
Use the PDF when meeting with a planificador financiero, your AFORE provider, or an IMSS representative to validate your projections against official records.
WhatsApp Share
Click the WhatsApp button to instantly share a formatted text summary of your key results — projected balance, monthly pension, regime recommendation, and Pensión Garantizada tier — directly via WhatsApp to a family member, financial advisor, or accountant.
| Data Point | Source | Official URL | Last Verified |
|---|---|---|---|
| 2021–2030 employer contribution rates | CONSAR / DOF | gob.mx/consar | Apr 2026 |
| SIEFORE Generacional default returns (IRN) | CONSAR | consar.gob.mx | Apr 2026 |
| 2026 ISR tax brackets (12 bands) | SAT / DOF | sat.gob.mx | Jan 2026 |
| Pensión Garantizada tiers + 2024 reform | IMSS / IMSSNL | imss.gob.mx | Apr 2026 |
| UMA 2026 value (MXN 113.14/day) | INEGI | inegi.org.mx | Feb 2026 |
| LSS-1973 defined-benefit formula | IMSS LSS Art. 167 | imss.gob.mx | 2024 reform |
| US-Mexico Totalization Agreement | SSA.gov | ssa.gov | 2023 |
| MXN inflation baseline (CPI) | INEGI / Banxico | banxico.org.mx | Apr 2026 |
Generación de Transición: Who Qualifies for Dual-Regime Choice?
From the 1943 IMSS founding to the 2020 employer contribution reform
Understanding Mexico’s retirement system requires knowing why it changed — twice. Each reform was a direct response to a financial crisis: the first was the 1994 peso crisis that exposed the defined-benefit system’s insolvency; the second was the 2020 recognition that the 1997 reform had left workers with replacement rates too low to retire on.
Cuota Social, Employer Matching & Worker Contributions
Every payroll cycle, four separate money flows enter your AFORE account
Most Mexican workers think only their employer contributes to their AFORE. In reality, every payroll cycle triggers four distinct payments into your account from three separate sources. Understanding all four is essential for modeling accurate projections in Tab 1.
largest stream
mandatory
social quota
worker choice
The 2030 Employer Contribution Escalator (5.15% to 15.0%)
The employer contribution is the largest of the four streams and the one most dramatically changed by the 2020 reform. Before 2023, employers contributed just 5.15% of the Salario Base de Cotización (SBC). The reform phases this up to 15.00% by 2030, with 2026 being the first year at the full 15.00% rate for most workers.
The SBC is the worker’s integrated daily salary — base pay plus proportional parts of annual bonuses (aguinaldo), vacation premium (prima vacacional), and other regular benefits. Workers with significant bonus structures often have SBCs 15–25% higher than their nominal base salary.
Monthly SBC ≈ MXN 33,750 (with integrated benefits). Employer contribution = MXN 33,750 × 15.00% = MXN 5,062/month deposited into AFORE — automatically, every month, regardless of worker action.
Aportaciones Voluntarias: Deducting Contributions from SAT Taxes
Voluntary contributions are the only part of the AFORE equation entirely within the worker’s control. Unlike the mandatory streams, voluntary contributions are completely optional — but they carry a powerful government subsidy: ISR deductibility.
Under Articles 151 and 185 of the LISR (SAT), voluntary AFORE contributions classified as Aportaciones Complementarias de Retiro or Aportaciones de Largo Plazo qualify as personal deductions on your annual ISR return. For a worker in the 30% marginal ISR bracket, every MXN 1,000 contributed voluntarily generates a MXN 300 tax refund — effectively reducing the real cost to MXN 700.
The 5 UMA vs. 10% Income Deduction Cap Explained
The annual ISR deduction for voluntary AFORE contributions is capped at the lower of: (a) 10% of annual income, or (b) 5× the annual UMA value. For 2026 (UMA ≈ MXN 39,633/year), the annual cap is approximately MXN 198,165. Most workers with salaries under MXN 165,000/month never hit this ceiling.
SIEFOREs: How CONSAR Allocates Your Retirement Risk
Age-based fund assignment, real returns, and the glide path that shifts your risk as you age
When money enters your AFORE account, it is immediately invested by the AFORE manager in a SIEFORE (Sociedad de Inversión Especializada en Fondos para el Retiro). Since 2020, CONSAR replaced the old SB1–SB4 funds with SIEFORE Generacionales — age-bracketed funds where each worker is automatically assigned based on their birth decade, not their risk preference.
The core logic is simple: a 25-year-old has 40 years for their investment to compound, so they can tolerate short-term volatility in exchange for higher expected returns. A 63-year-old retiring in 2 years needs stability and capital preservation. The Generacional funds automatically shift from growth-oriented to conservative as workers age — without any action required from the worker.
| SIEFORE Fund | Birth Decade | Age Range (2026) | Equity Allocation | 10-Yr Real Return | Risk Level |
|---|---|---|---|---|---|
| SB Básica Inicial | 1994 onwards | Under 32 | Up to 60% | Highest | |
| SB 90-94 | 1990–1994 | 32–36 | Up to 55% | Very High | |
| SB 85-89 | 1985–1989 | 37–41 | Up to 50% | High | |
| SB 80-84 | 1980–1984 | 42–46 | Up to 45% | Moderate-High | |
| SB 75-79 | 1975–1979 | 47–51 | Up to 40% | Moderate | |
| SB 70-74 | 1970–1974 | 52–56 | Up to 35% | Moderate-Low | |
| SB de Pensiones | Before 1970 | 56+ | Up to 20% | Conservative |
CONSAR publishes two return figures: nominal (before inflation) and net real return (Rendimiento Neto). The calculator uses real returns only — meaning the projected balance is already inflation-adjusted. A projected balance of MXN 8 million at age 65 represents MXN 8 million in today’s purchasing power, not in inflated 2060 pesos. This is more conservative and more meaningful for retirement planning.
Calculating the Ley 73 IMSS Pension
The pre-1997 pension formula that can pay 6–10× more than the AFORE annuity for long-service workers
The LSS-1973 (Ley del Seguro Social 1973) pension is a defined-benefit (DB) formula — meaning the pension amount is calculated from your salary and service record, not from your investment account balance. This is fundamentally different from LSS-1997, which pays whatever annuity your AFORE balance can purchase.
For workers who began contributing before July 1, 1997 (the Generación de Transición), IMSS will calculate both amounts at retirement and offer the higher of the two. The critical insight is that for workers with long service records and stable salaries, the DB formula almost always wins by a wide margin.
Where:
SBC = Average daily Salario Base de Cotización (last 5 years)
Base_Rate = 35% at minimum (500 semanas), rises with more weeks
Years_Factor = +1.25% per 52-week year beyond minimum
Age_Factor = Modifier for retirement age (65 = 100%; 60 = reduction)
Practical Example — Roberto (Case 2):
SBC = MXN 26,000/month (MXN 866.67/day)
Semanas = 1,820 (35 years × 52 weeks)
Formula Result= MXN 14,482/month ≈ 55.7% of salary
vs. AFORE = MXN 2,285/month — LSS-1973 wins by MXN 12,197/month
| Feature | LSS-1973 (DB) | LSS-1997 (DC/AFORE) |
|---|---|---|
| Pension basis | Salary + service record | Account balance only |
| Investment risk | None (government pays) | 100% worker’s risk |
| Inflation protection | Indexed to UMA | Depends on annuity purchased |
| Survivor benefit | 75% to spouse | Depends on annuity terms |
| Who can elect | Pre-July 1997 only | All formal workers |
| Minimum semanas | 500 (reduced pension) | 1,000 (by 2031) |
| Max replacement rate | Up to 100% | Typically 25–45% |
Modalidad 40 (Voluntary Continuation) to Maximize Payout
The Generación de Transición election is irrevocable once made. The moment a worker initiates AFORE withdrawal procedures at retirement, they are implicitly electing LSS-1997 — and the LSS-1973 right is permanently lost.
This happens most often when workers retire and their employer’s HR department processes their liquidation, including AFORE paperwork, without the worker knowing they had a choice. By the time a gestor explains LSS-1973, the AFORE account may already be in the withdrawal process.
If you were enrolled in IMSS before July 1, 1997: do not sign any AFORE withdrawal papers until IMSS has calculated your LSS-1973 entitlement. Request a formal pension resolution (resolución de pensión) from your local IMSS subdelegación first. This process can take 3–6 months — start early.
The 500 vs. 1,000 Semanas Cotizadas Requirement (2031 Horizon)
Employer contributions tripling by 2030, minimum pension floors raised, and what it means for your balance
The December 2020 IMSS reform (DOF 16-XII-2020) was the most significant change to Mexico’s AFORE system since its 1997 creation. It had two major components: a dramatic increase in employer contribution rates phased in over 8 years (2023–2030), and an increase in the Pensión Garantizada minimum alongside a new escalating semanas requirement.
Employer Contribution Phase-In 2021–2030
Under the pre-reform 5.15% employer rate, employer contributions over 30 years would total approximately MXN 558,000 (before investment returns). Under the 2026 15.00% rate, the same worker receives MXN 1,620,000 in employer contributions alone — a MXN 1,062,000 increase attributable entirely to the reform. Compounded over 30 years at 5.1% real return, this translates to roughly MXN 4.8M more at retirement.
Pensión Garantizada: The Safety Net for Ley 97 Workers
Three tiers, escalating week requirements, and why this matters more than your balance for some workers
The Pensión Garantizada (PG) is Mexico’s government-backed minimum retirement pension — a safety net ensuring that workers who contributed formally to IMSS throughout their careers are not left destitute in old age, even if their AFORE balance is too small to fund an adequate pension. The 2020 reform significantly increased the PG amount and restructured it into three tiers based on the worker’s average salary.
The Pensión Garantizada is all-or-nothing. A worker one week short of the minimum threshold receives zero pension — not a proportionally reduced one. Under the 2020 reform schedule: 750 weeks in 2021, 800 in 2022, rising to 1,000 by 2031. A worker retiring in 2031 who has 999 semanas receives their AFORE balance as a lump sum only — no monthly pension, no government guarantee. This is the cliff that Tab 3 monitors.
How Mexico’s income tax system effectively makes voluntary contributions cheaper than their face value
Mexico’s ISR (Impuesto Sobre la Renta) system has a built-in incentive to make voluntary AFORE contributions: they are deductible from your taxable income. This means the government partially co-funds your retirement savings through the tax refund generated. The higher your marginal tax bracket, the larger the government’s implicit contribution.
ISR_Refund = Annual_VC × Marginal_ISR_Rate(your bracket)
Net_Cost = Annual_VC − ISR_Refund
Example — Carlos (Case 1): MXN 55,000/month salary, 25.6% marginal ISR bracket
Annual_VC = MXN 3,000 × 12 = MXN 36,000
ISR_Refund = MXN 36,000 × 25.6% = MXN 9,216
Net_Cost = MXN 36,000 − MXN 9,216 = MXN 26,784/year (MXN 2,232/month net)
He contributes MXN 3,000 but it only costs him MXN 2,232 — the government pays MXN 768/month
| Monthly Salary (MXN) | Marginal ISR Rate | VC MXN 3,000/mo | Net Cost | Govt Share |
|---|---|---|---|---|
| Up to 8,000 | 10.0% | MXN 36,000 | MXN 32,400 | MXN 3,600 |
| 8,001–15,000 | 14.9% | MXN 36,000 | MXN 30,636 | MXN 5,364 |
| 15,001–28,000 | 21.4% | MXN 36,000 | MXN 28,296 | MXN 7,704 |
| 28,001–55,000 | 25.6% | MXN 36,000 | MXN 26,784 | MXN 9,216 |
| 55,001–120,000 | 30.0% | MXN 36,000 | MXN 25,200 | MXN 10,800 |
| Over 120,000 | 35.0% | MXN 36,000 | MXN 23,400 | MXN 12,600 |
- Make voluntary contributions to your AFORE as Aportaciones Complementarias de Retiro — not as retiro a corto plazo (which are not deductible).
- Obtain your AFORE annual contribution statement (Constancia de Aportaciones) from your AFORE provider by February 28 each year.
- Include the amount on your SAT annual declaration (Declaración Anual) under Deducciones Personales → Aportaciones voluntarias a la subcuenta de retiro.
- SAT processes the refund typically within 40 business days of filing your annual declaration.
- The refund is deposited directly to the bank account linked to your RFC/SAT profile.
Contributions classified as Aportaciones Complementarias de Retiro cannot be withdrawn until you reach the IMSS retirement age (60–65). If you need liquidity access, use Aportaciones Voluntarias (short-term) instead — but these carry no ISR deduction.
US Expats in Mexico: Cross-Border Retirement Planning
How peso depreciation erodes purchasing power and what “adequate” actually means in different Mexican cities
The MXN/USD Depreciation Problem
The Mexican peso has historically depreciated against the US dollar at an average of approximately 4–5% annually over the past 25 years. For a worker retiring in 25 years with a pension denominated in pesos, this depreciation path matters enormously if they plan to:
- Purchase US-manufactured medical equipment or medications
- Travel internationally or maintain dual US-Mexico residence
- Send financial support to family members in the US
- Hedge against domestic economic instability
A pension of MXN 30,000/month in 2050 is approximately USD 904/month at today’s rates — but if the peso depreciates to MXN 33.20/USD by then (base case), that same MXN 30,000 would be worth only USD 904/month in nominal terms, with significantly less real purchasing power due to inflation on both sides of the border.
Because Tab 1 uses real (inflation-adjusted) returns, projected balances already account for Mexican peso inflation. The MXN/USD conversion in Tab 5 layers the additional exchange rate risk on top — giving a more complete cross-border picture than most Mexican retirement tools provide.
Cost of Living (COL) Thresholds: CDMX vs. Merida vs. Ajijicy
What counts as an “adequate” Mexican retirement pension depends heavily on where you plan to live. INEGI’s ENIGH household survey data reveals significant cost-of-living differences between major cities. Tab 5 uses these thresholds to grade pension adequacy.
| City | Modest Budget | Moderate Budget | Comfortable |
|---|---|---|---|
| Oaxaca / Mérida | MXN 12,000 | MXN 18,000 | MXN 25,000+ |
| Guadalajara | MXN 16,000 | MXN 24,000 | MXN 34,000+ |
| Puebla / Querétaro | MXN 15,000 | MXN 22,000 | MXN 31,000+ |
| Monterrey | MXN 20,000 | MXN 30,000 | MXN 42,000+ |
| Mexico City (CDMX) | MXN 22,000 | MXN 33,000 | MXN 48,000+ |
| US Border Cities | MXN 28,000+ | MXN 40,000+ | MXN 55,000+ |
The retirement location decision alone can change whether a MXN 22,000/month pension is “comfortable” (in Mérida) or “modest” (in CDMX) — a difference that Tab 5 quantifies explicitly with its city adequacy grader.
Aportaciones Voluntarias (voluntary AFORE contributions) are deductible from your Mexican income tax (ISR) under Artículo 151 de la LISR, up to 10% of your annual income — or 5 UMAs annually (MXN 41,296 in 2026), whichever is lower. This deduction generates an immediate tax refund at your marginal ISR rate — meaning the government effectively co-funds part of your retirement savings every single year.
ISR Refund = Contribution × Marginal ISR Rate
Monthly contribution: MXN 3,000 (MXN 36,000/yr)
Annual ISR refund: MXN 36,000 × 21.36% = MXN 7,690
Real net cost per month: MXN 2,359 (not MXN 3,000)
20-Year Compounding Impact
| Monthly Contrib. | Annual Net Cost | Balance After 20 Yrs | Bonus vs. No Contrib. |
|---|---|---|---|
| MXN 1,000 | MXN 9,437 | MXN 320,000 | +MXN 320K |
| MXN 2,000 | MXN 18,874 | MXN 640,000 | +MXN 640K |
| MXN 3,000 | MXN 28,310 | MXN 960,000 | +MXN 960K |
| MXN 5,000 | MXN 47,184 | MXN 1,600,000 | +MXN 1.6M |
Projections use 4.5% net real SIEFORE return (SB 85-89 default). Net costs at 21.36% ISR bracket. Balance in today’s MXN purchasing power.
Under Artículo Décimo Transitorio de la LSS, workers who enrolled with IMSS before July 1, 1997 have a constitutional right to choose the higher of two pensions at retirement: (1) the old LSS-1973 defined-benefit formula, or (2) the LSS-1997 AFORE-funded annuity. The Mexican Supreme Court (SCJN) has repeatedly upheld this right — but you must actively elect it at the time of retirement. If you simply withdraw your AFORE balance without notifying IMSS, you forfeit LSS-1973 permanently.
When Does LSS-1973 Beat the AFORE?
The LSS-1973 formula rewards years of service and salary level. It almost always wins when you have long formal employment history with moderate-to-high salary. The AFORE annuity wins when your balance is exceptionally large relative to your salary — which typically requires either very high voluntary contributions or many years of high employer rates under the post-2020 reform.
| Profile | LSS-1973 | LSS-1997 | Winner |
|---|---|---|---|
| 30 yr service, MXN 42K salary | MXN 18,900 | MXN 3,148 | 1973 |
| 25 yr service, MXN 30K salary | MXN 11,250 | MXN 2,400 | 1973 |
| 15 yr service, MXN 60K salary | MXN 13,500 | MXN 14,200 | 1997 |
| 20 yr service, MXN 80K salary + large AFORE | MXN 24,000 | MXN 28,148 | 1997 |
- ✔️Run Tab 2 now — don’t wait until retirement week
- ✔️Bring your IMSS semanas printout to any comparison
- ✔️Notify IMSS in writing of your LSS-1973 election before AFORE disbursement
- ✔️Consult a gestor de pensiones if the gap is close
- 🚫Never withdraw your AFORE before asking IMSS about 1973 right
- 🚫Don’t assume your AFORE is the only option if you started pre-1997
- 🚫Don’t let IMSS pressure you into a fast decision
- 🚫Don’t skip this step if you have 20+ service years
The Pensión Garantizada requires a minimum number of semanas cotizadas to IMSS. This threshold has been increasing annually since the 2020 reform. If you miss it by even one week, you receive no monthly pension — only a return of your individual AFORE account balance as a lump sum. Since many workers have 600–800 weeks, the risk of falling just short is real and underappreciated.
This example shows a worker with 750 current weeks who retires in 2026 is exactly on the threshold — but delaying retirement by even one year increases the requirement beyond their reach. The actual schedule is shown in Tab 3’s official 6-row table.
How to Check & Plug Your Semanas Gap
The most common cause of semanas gaps is informal employment periods — years working without IMSS registration, self-employment, or working abroad. Some gaps can be corrected by formally registering with IMSS, negotiating with your employer to retroactively correct under-registered periods, or extending your formal working years.
2. Request your Constancia de Semanas Cotizadas at any IMSS subdelegación
3. Check via your AFORE app — most AFORE providers show weeks in the dashboard
4. Contact IMSS directly if you find gaps from past formal employment — employers can be fined for under-registration, so correction requests are taken seriously.
Contribution density is the percentage of your working career during which you were actively contributing to IMSS. A density of 80% means that in 20 years of working, 4 years had no formal contributions — perhaps during self-employment, freelancing, unemployment, or work abroad. These gaps compound painfully: missing contributions in your early career are the most expensive because they have the most time to compound.
| Density | Profile | Projected Balance (25 yrs, MXN 35K salary) | vs. 100% |
|---|---|---|---|
| 100% | Always formal | MXN 1,820,000 | Baseline |
| 80% | Mostly formal, some gaps | MXN 1,456,000 | −MXN 364K (−20%) |
| 60% | Significant informal periods | MXN 1,092,000 | −MXN 728K (−40%) |
| 40% | Mostly informal / self-employed | MXN 728,000 | −MXN 1.09M (−60%) |
MXN 35,000/month salary, 25 years to retirement, 4.5% net real SIEFORE return. Total contributions scale linearly with density; compounding amplifies the gap.
The Voluntary Contribution Density Fix
You cannot retroactively add IMSS contribution weeks — but you can partially compensate for past density gaps using voluntary AFORE contributions. The strategy is simple: calculate how much balance you’ve lost due to low density, then set a monthly voluntary contribution target to close that gap over your remaining working years.
Required Monthly VC = Balance Lost ÷ FV Annuity Factor (r, n)
15 years remaining, 4.5% return → annuity factor ≈ 250
Required monthly VC to close gap: MXN 728,000 ÷ 250 ≈ MXN 2,912/month
Mexico’s AFORE pensions are denominated entirely in Mexican pesos. If you plan to retire in a border city, travel frequently to the US, pay US-based children’s tuition, hold USD-priced medical insurance, or retire as an expat in San Miguel de Allende or other dollar-heavy markets, your pension’s real value in USD terms is critically important — and it degrades with every year of peso weakness.
Scenarios use current rate MXN 17.20/USD. Differentials reflect MXN inflation 4.0% vs. USD inflation 2.5% (Purchasing Power Parity baseline) with real exchange rate drift. Run your own figures in Tab 5.
Adequacy Check by Retirement City
The Tab 5 Adequacy Check pre-loads monthly budget estimates for 6 Mexican cities at three lifestyle levels. For a worker with a MXN 15,000 projected pension, the adequacy result varies dramatically depending on where they plan to retire.
| City | Budget (Moderate) | Pension MXN 15K | Grade |
|---|---|---|---|
| Oaxaca | MXN 13,000–18,000 | ✅ Adequate | Comfortable |
| Mérida | MXN 15,000–22,000 | ⚠️ Borderline | Adequate |
| Guadalajara | MXN 20,000–28,000 | ❌ Shortfall MXN 5K | Insufficient |
| Mexico City | MXN 25,000–38,000 | ❌ Shortfall MXN 10K | Insufficient |
| San Miguel (expat) | MXN 35,000+ | ❌ Major gap | Insufficient |
Ley 97 Software Developer in CDMX (AFORE Accumulation)
Situation
Carlos is a junior software developer who started with formal IMSS employment in 2020. He has a good salary for his age, is automatically enrolled in the highest-returning SIEFORE Generacional fund, and has 37 years before the standard retirement age of 65. He’s currently making no voluntary contributions and hasn’t thought much about retirement. He came to the calculator to understand if he’s “on track.”
The Power of Adding MXN 3,000/Month Voluntarily
Roberto Vásquez — Age 55, Schoolteacher, Puebla
Situation
Roberto has been a public schoolteacher since 1991. He started contributing to IMSS before July 1, 1997 — making him a member of the Generación de Transición with the right to choose the better of LSS-1973 or LSS-1997 at retirement. He assumed he’d simply withdraw his AFORE at 65, unaware that the old defined-benefit formula might pay dramatically more. He has 1,820 semanas and 10 years left to retirement.
The Scale of Roberto’s Regime Decision
Leticia Ramírez — Age 42, Restaurant Owner, Guadalajara
Situation
Leticia has owned a small restaurant since 2010. Before that, she had several years of formal employment but irregular IMSS registration. She currently has only 480 semanas cotizadas and 23 years until retirement. The calculator shows a density warning and flags she will miss the Pensión Garantizada minimum weeks threshold unless she takes immediate action. Her low balance also means the AFORE annuity alone would provide a very small pension.
Leticia’s Two Critical Numbers
As a business owner, Leticia can register with IMSS as persona física con actividad empresarial. This builds ~52 semanas/year — maximizing her weekly accumulation in the 23 years remaining.
Even at MXN 1,500/month voluntarily, the ISR deduction lowers net cost to ~MXN 1,100/month, while the balance at 65 increases by approximately MXN 560,000 — significantly improving her annuity fallback.
Check the calculator annually against the escalating weeks table to confirm she stays above the Pensión Garantizada threshold for her target retirement year.
Dual Citizen Expat (US Totalization Agreement Application)
Situation
David is a US-born engineer who has worked in Monterrey since 2011. He has 15 years of IMSS contributions in Mexico and 15 years of prior US Social Security credits. He plans to retire at 65 and is undecided between staying in Monterrey or moving back to Texas. His main concerns are: (1) whether he qualifies for both Mexican and US pensions, (2) how MXN depreciation will affect his pension in USD terms, and (3) whether his combined income will be adequate in either country.
Currency Impact on David’s Mexico Pension
| Currency Scenario | MXN Rate (2043) | Mexico Pension in USD | Combined Total USD |
|---|---|---|---|
| 🟢 Optimistic | MXN 14.84 | USD 961/mo | USD 2,781/mo |
| 🟡 Base Case | MXN 20.68 | USD 689/mo | USD 2,509/mo |
| 🔴 Pessimistic | MXN 26.54 | USD 537/mo | USD 2,357/mo |
Ley 73 Executive in Monterrey (Modalidad 40 Strategy)
Situation
Esperanza is a senior HR director planning to retire in 4 years at 65. She has an excellent IMSS record — 2,210 semanas and IMSS enrollment since 1988 — making her strongly eligible for the LSS-1973 defined-benefit formula. She also has an MXN 1.24M AFORE balance. She came to the calculator to make her final retirement decisions: which regime to elect, whether to make last-minute voluntary contributions, and whether her pension will sustain her Monterrey lifestyle.
Esperanza’s 4-Year Final Sprint Plan
With 4 years to go, Esperanza should request her resolución de pensión from IMSS under LSS-1973. Do not wait until the month of retirement. Document preparation can take months.
At MXN 6,000/month voluntary contribution and the 30% ISR bracket, she earns MXN 1,512/month ISR refund — MXN 18,144/year. Over 4 years: MXN 72,576 tax savings on contributions already made.
Her MXN 51,000 LSS-1973 pension covers 75% of her pre-retirement salary — well above the MXN 35,000 moderate Monterrey budget. She can retire comfortably without supplemental savings withdrawals.
| Worker | Age | Key Risk / Opportunity | Tabs Used | Main Pension | #1 Action |
|---|---|---|---|---|---|
| 👨💻 Carlos | 28 | Not using voluntary contributions | Tab 1 Tab 4 | MXN 30,519/mo | Start MXN 3,000/mo voluntary contribution now |
| 👨🏫 Roberto | 55 | Doesn’t know LSS-1973 pays 6× more | Tab 2 Tab 3 | MXN 14,482/mo | Prepare LSS-1973 election — lifetime +MXN 2.93M |
| 👩🍳 Leticia | 42 | 55% density + weeks threshold risk | Tab 3 Tab 1 | MXN 22,000/mo* | Register with IMSS formally now (*if weeks met) |
| 👨✈️ David | 48 | Bi-national pension not modeled | Tab 5 Tab 1 | ~USD 2,510/mo combined | Verify totalization eligibility with SSA + IMSS |
| 👩💼 Esperanza | 61 | 4 years to elect LSS-1973 correctly | Tab 2 Tab 4 Tab 5 | MXN 51,000/mo | File LSS-1973 pension claim with IMSS immediately |
AFORE Basics — How the System Works
Foundational questions about Mexico’s mandatory pension savings system, contributions, SIEFORE funds, and how to manage your account
An AFORE (Administradora de Fondos para el Retiro) is a private financial institution licensed by CONSAR (Mexico’s pension regulator) to manage individual retirement savings accounts for Mexican workers registered with IMSS or ISSSTE. Every formal-sector worker in Mexico is required by law to have an AFORE account.
Your AFORE account receives monthly contributions from three sources:
| Contributor | Rate (2026) | Account Sub-type |
|---|---|---|
| Employer | 10.50% of SBC (salary base) | Retirement + disability + survivors |
| Worker | 1.125% of SBC | Retirement sub-account |
| Federal Government | ~0.225% + cuota social flat amount (salary-based) | Government quota — benefits lower earners most |
| INFONAVIT (Housing) | 5% of SBC | Subcuenta de Vivienda — separate from pension |
These contributions are invested in age-appropriate SIEFORE Generacional funds that automatically shift to lower-risk investments as you approach retirement. You can also make voluntary contributions (Aportaciones Voluntarias) at any time to boost your retirement balance.
SIEFORE Generacionales are age-segmented investment funds managed by AFOREs. Every worker is automatically assigned to the SIEFORE matching their birth year. The funds are designed so younger workers get higher-risk, higher-growth investments, while older workers are shifted progressively to more conservative, capital-preservation portfolios.
| SIEFORE Fund | Birth Year | Net Real Return (CONSAR Q1 2026) | Risk Level |
|---|---|---|---|
| SB Inicial | 1994 or later | ~6.0% | Highest (equities-heavy) |
| SB 90-94 | 1990–1994 | ~5.8% | High |
| SB 85-89 | 1985–1989 | ~5.5% | Medium-High |
| SB 80-84 | 1980–1984 | ~4.8% | Medium |
| SB 75-79 | 1975–1979 | ~4.2% | Medium-Low |
| SB 70-74 | 1970–1974 | ~4.0% | Low |
| SB Pensiones | Before 1969 | ~3.8% | Conservative (bonds-heavy) |
These are 10-year trailing net real returns (after fees and inflation) published by CONSAR. They represent historical performance — future returns are not guaranteed and can be negative in any given year. Compare AFORE providers at gob.mx/consar since different AFOREs managing the same SIEFORE type can have different returns.
There are three official ways to find which AFORE manages your account:
- e-SAR Portal: Go to e-SAR.com.mx — enter your CURP (Clave Única de Registro de Población) to see your AFORE provider and account balance
- AforeMóvil App: Download from App Store or Google Play — log in with CURP to view real-time balance, returns, and statements
- SARTEL Phone: Call toll-free 55 1328-5000 (CONSAR’s SARTEL hotline) — works from any Mexican mobile or landline
To change your AFORE provider (traspaso): Workers are allowed one free transfer per year after being enrolled for at least a full calendar year. To switch, visit the new AFORE’s office or app with your CURP, NSS (IMSS number), and official ID. The transfer is processed in 30–60 business days and you must be moving to an AFORE with a higher net return rate in your SIEFORE category — CONSAR enforces this rule to prevent predatory sales practices.
Every IMSS worker’s contribution record has two separate components: the retirement sub-account (subcuenta de retiro) managed by your AFORE, and the housing sub-account (subcuenta de vivienda) managed by INFONAVIT. Your employer contributes 5% of your SBC every two months to INFONAVIT, separate from the AFORE contributions.
The housing sub-account works as follows:
- If you take an INFONAVIT mortgage: The balance is used as a down payment and the account helps service the loan. Monthly contributions continue to reduce your outstanding INFONAVIT balance.
- If you never use INFONAVIT for a mortgage: The entire unused balance is transferred to your AFORE retirement account at retirement — adding a significant lump sum to your pension fund.
- Returns on housing sub-account: INFONAVIT credits the account at a minimum rate equivalent to the annual inflation rate, so balances maintain real value even if unused for housing.
Pension Regimes — LSS-1973 vs LSS-1997 & Pensión Garantizada
Understanding the two pension laws, the Generación de Transición election right, and the government’s guaranteed minimum pension
Mexico’s pension system underwent a fundamental reform on July 1, 1997. Workers are governed by different laws depending on when they started contributing to IMSS:
| Feature | LSS-1973 (Old Law) | LSS-1997 (Current Law) |
|---|---|---|
| Type | Defined Benefit (DB) | Defined Contribution (DC) |
| Who it applies to | Started IMSS before July 1, 1997 | Started IMSS on or after July 1, 1997 |
| Pension amount | Formula: % of final salary × years of service | Depends on AFORE balance at retirement |
| Investment risk | Government bears all risk | Worker bears all market risk |
| Predictability | High — salary-based formula | Low — depends on SIEFORE returns |
| Minimum weeks | 500 semanas to qualify | 750–1,000 semanas (escalating to 2031) |
| Retirement age | 60 (early) / 65 (normal) | 60 (early, reduced) / 65 (full) |
Generación de Transición workers (started before July 1997) have a unique legal right: at retirement, IMSS calculates your pension under BOTH laws and pays you whichever is higher. This is a one-time, irreversible election. Use Tab 2 of our calculator to model both options before making this decision.
The semanas cotizadas (weeks contributed) threshold is the most important eligibility gate for your Mexican pension. Under the 2020 IMSS reform, the minimum requirement is increasing each year according to this schedule:
| Retirement Year | Min. Weeks Required | Equivalent Years of Full Employment |
|---|---|---|
| 2021 | 750 weeks | ~14.4 years |
| 2022 | 775 weeks | ~14.9 years |
| 2023 | 800 weeks | ~15.4 years |
| 2024 | 825 weeks | ~15.9 years |
| 2025 | 850 weeks | ~16.3 years |
| 2026 | 875 weeks | ~16.8 years |
| 2027 | 900 weeks | ~17.3 years |
| 2028 | 925 weeks | ~17.8 years |
| 2029 | 950 weeks | ~18.3 years |
| 2030 | 975 weeks | ~18.75 years |
| 2031+ | 1,000 weeks | ~19.2 years |
If you fall short of the minimum weeks: You do not receive a monthly pension — instead you receive your entire AFORE balance as a lump-sum payment (retiro de saldo total) at age 65. This can be a significant financial shock, especially with no ongoing income stream. Options to recover include: continuing formal employment to accumulate more weeks, switching to IMSS Independiente (voluntary regime), or accepting the lump sum and managing it independently.
The Pensión Garantizada is Mexico’s government-backed minimum pension guarantee under LSS-1997 (Article 170 of the Ley del Seguro Social). When a qualifying worker’s AFORE balance is insufficient to fund a reasonable monthly pension, the federal government covers the difference — effectively a retirement safety net funded by taxpayers.
Eligibility requirements in 2026:
- Must be registered under LSS-1997 (started IMSS contributions on or after July 1, 1997)
- Must have reached age 65 (normal retirement) or age 60 (early retirement with reduced benefit)
- Must meet the minimum semanas cotizadas threshold for your retirement year (875 weeks in 2026)
- Your AFORE balance must be insufficient to fund a pension above the guaranteed minimum
How much does it pay in 2026? The Pensión Garantizada is tied to the UMA (Unidad de Medida y Actualización). With the 2026 daily UMA at approximately MXN $108.57, the guaranteed pension equates to roughly MXN $3,257/month (30 days × 108.57). This is adjusted for inflation annually when INEGI updates the UMA value on February 1 each year.
The Fondo de Pensiones para el Bienestar is a government fund established in 2024 to supplement retirement income for workers who retire under LSS-1997 but whose AFORE balances are insufficient to fund their full pension. It is NOT a takeover of private AFORE accounts — the viral claim that the government will confiscate AFOREs is false and has been officially denied by CONSAR and the federal government.
How the Fondo para el Bienestar actually works:
- It is funded by unclaimed AFORE balances (accounts inactive for 10+ years with no identified beneficiaries) and government budget transfers
- It pays a supplemental pension to eligible retirees whose AFORE funds only cover a pension below 100% of their average salary
- Your individual AFORE account balance remains legally yours — private, individually owned, and managed by your chosen AFORE
- Beneficiaries of the Fondo are automatically identified by IMSS at retirement — you do not need to apply separately
Taxes & Voluntary Contributions — ISR Optimization
ISR deduction rules for voluntary AFORE contributions, tax bracket impact, SAT limits, and contribution strategies
Yes — voluntary contributions to your AFORE account qualify as a personal ISR deduction under Article 151 of Mexico’s Ley del Impuesto Sobre la Renta (LISR). This means every peso you contribute voluntarily reduces your taxable income, generating a tax refund at your marginal ISR rate.
The 2026 deduction limit (Art. 151 LISR): The lower of:
- 10% of your annual gross income, OR
- 5 times the annual UMA value (5 × $108.57 × 365 = ~MXN $198,141/year in 2026)
For most workers, the 10% of income cap is binding. Example: if you earn MXN $600,000/year, your AFORE deduction cap is MXN $60,000.
| Annual Income | Marginal ISR Rate (2026) | Max Deductible Contribution | Annual Tax Saving |
|---|---|---|---|
| MXN $200,000 | 21.36% | MXN $20,000 | ~MXN $4,272 |
| MXN $400,000 | 28% | MXN $40,000 | ~MXN $11,200 |
| MXN $600,000 | 30% | MXN $60,000 | ~MXN $18,000 |
| MXN $1,000,000 | 32% | MXN $100,000 | ~MXN $32,000 |
| MXN $2,000,000+ | 35% | MXN $198,141 (cap) | ~MXN $69,349 |
Mexican law distinguishes between three types of voluntary AFORE contributions, with different ISR treatment and withdrawal conditions:
| Type | Spanish Name | ISR Deductible? | Earliest Withdrawal | Best For |
|---|---|---|---|---|
| Long-Term Voluntary | Aportaciones Complementarias de Retiro | ✅ Yes — up to 10% income cap | Age 65 only (or disability/death) | Maximum tax savings + pension boost |
| Short-Term Voluntary | Aportaciones Voluntarias Corto Plazo | ❌ No ISR deduction | Every 2 months (no lock-in) | Emergency fund buffer with SIEFORE returns |
| Employer Complementary | Aportaciones Patronales Complementarias | N/A (employer benefit) | At retirement | Employer-sponsored top-up schemes |
For pure retirement savings optimization, Aportaciones Complementarias de Retiro give you the triple benefit of ISR deduction today + tax-deferred SIEFORE growth + higher retirement balance. Short-term voluntary contributions are better if you need liquidity — they earn SIEFORE returns but can be withdrawn every two months.
The 2020 IMSS pension reform was the most significant change to Mexico’s pension system since 1997. The core change was a dramatic increase in mandatory employer contribution rates phased in over 2023–2030, plus a new minimum pension formula tied to the worker’s last salary.
| Year | Employer Contribution Rate | Change from Prior Year |
|---|---|---|
| Pre-2023 (old rate) | 5.15% | — |
| 2023 | 7.50% | +2.35% |
| 2024 | 8.50% | +1.00% |
| 2025 | 9.50% | +1.00% |
| 2026 | 10.50% | +1.00% |
| 2027 | 11.50% | +1.00% |
| 2028 | 12.50% | +1.00% |
| 2029 | 13.50% | +1.00% |
| 2030+ | 13.875% → 15.00% | Final phase-in |
The combined contribution (employer + worker + government) reaching 15% means a worker earning MXN $25,000/month will have MXN $3,750/month going into their AFORE by 2030 — compared to only MXN $1,285/month under the old pre-2023 rates. Over a 30-year career, this reform could more than double projected retirement balances for younger workers.
AFORE providers charge an annual management commission on your total account balance (not just new contributions). This fee is set by each AFORE and is regulated by CONSAR with a maximum cap. As of 2026, commission rates across the 10 licensed AFOREs range from approximately 0.55% to 0.80% annually — compared to over 2% before earlier reforms.
Why commissions matter more than most people realize:
- A 0.25% difference in annual commission on a MXN $500,000 balance = MXN $1,250/year difference in fees
- Over 30 years compounded, the same 0.25% difference can reduce your final balance by 6–8%
- CONSAR publishes a comparison of all AFORE commissions at gob.mx/consar — Comisiones
Withdrawals & Life Events — Unemployment, Death, Early Access
Rules for partial withdrawals, unemployment benefits, what happens at death, and how to register beneficiaries
Yes — IMSS law allows limited partial withdrawals from your AFORE during unemployment, called Retiro por Desempleo. However, these withdrawals reduce your retirement savings and future pension. The rules as of 2026:
- Waiting period: You must have been unemployed for at least 46 consecutive days before applying
- Account age requirement: Your AFORE account must be at least 5 years old
- Amount you can withdraw: The lesser of (a) 90 days of your average salary over the last 250 weeks, or (b) 11.5% of your total account balance
- Frequency limit: Only once every 5 years
- ISR impact: No ISR is withheld on unemployment withdrawals (unlike regular early withdrawals)
Your AFORE account balance is your personal property and passes directly to your registered beneficiaries upon your death — it does not revert to the government, the AFORE company, or any other party. This is one of the most important advantages of the LSS-1997 defined-contribution system over the old LSS-1973 defined-benefit system.
Two separate inheritance streams at death:
- AFORE balance (retiro de saldo): The full accumulated balance in your retirement sub-account and voluntary contributions is paid to beneficiaries as a lump sum
- IMSS survivors pension (pensión de viudez/orfandad): If you had qualifying semanas cotizadas at the time of death, IMSS may also pay an ongoing monthly survivors pension to your spouse and dependent children under age 16 (or up to 25 if enrolled in school)
How beneficiaries claim your AFORE balance: Visit the AFORE office with the death certificate (acta de defunción), official beneficiary IDs, and proof of relationship (marriage certificate for spouse, birth certificates for children). Processing typically takes 2–6 weeks.
Mexico’s LSS-1997 system defines two retirement ages with different benefit levels:
| Retirement Type | Age | Min. Semanas (2026) | Benefit Level | IMSS Term |
|---|---|---|---|---|
| Normal Retirement | 65 years | 875 semanas (2026) | Full pension — AFORE balance + Pensión Garantizada if eligible | Retiro por Vejez |
| Early Retirement (Cesantía) | 60–64 years | 875 semanas (2026) | Reduced pension based on actuarial reduction factor | Retiro por Cesantía en Edad Avanzada |
| Disability Pension | Any age | 150 semanas minimum | Proportional to disability grade + salary | Pensión por Invalidez |
For early retirement at age 60, the pension is actuarially reduced because you are expected to draw payments for more years. The reduction factor is calculated by IMSS at the time of your application and depends on your exact age in months. There is no fixed percentage reduction — it varies per case.
At retirement, LSS-1997 workers who qualify for a pension must choose between two ways to receive their AFORE balance as income. This is one of the most financially consequential decisions of retirement:
| Option | How It Works | Longevity Risk | Heirs Receive | Best For |
|---|---|---|---|---|
| Retiro Programado | AFORE pays monthly installments calculated annually based on remaining balance ÷ life expectancy. Amount decreases over time. | High — if you live longer than projected, payments shrink to near zero | Remaining balance at death | Workers with other income sources; those wanting to leave inheritance |
| Renta Vitalicia (Annuity) | You transfer AFORE balance to a licensed insurance company which pays a fixed monthly income for life, no matter how long you live. | Zero — payments guaranteed for life by the insurer | Nothing (balance transferred) | Workers with no other income; those prioritizing income certainty and longevity protection |
You can also choose a hybrid approach: use part of your AFORE balance for a partial annuity to cover fixed expenses, and keep the rest in a programmed withdrawal for flexibility. Consult a certified financial planner (planificador financiero) and get quotes from multiple insurers before deciding — this election cannot be reversed once made.
Expats, Foreigners & Currency Risk
Rules for foreign workers in Mexico, AFORE withdrawals abroad, US-Mexico Totalization Agreement, and MXN/USD retirement planning
Yes — any worker formally employed in Mexico and registered with IMSS is required to have an AFORE account, regardless of nationality. This includes:
- Foreign nationals on work visas (Temporal Residente with work authorization) — IMSS registration is mandatory for their Mexican employers
- Permanent residents of Mexico working formally — same rules as Mexican citizens
- US, Canadian, and EU expats on assignment at Mexican subsidiaries — subject to IMSS if employed locally (not via secondment)
Documents needed by foreign workers to open/access their AFORE:
- CURP (Clave Única de Registro de Población) — foreigners can obtain this from INM (National Immigration Institute)
- NSS (Número de Seguridad Social) — assigned by IMSS upon first formal employment registration
- RFC (SAT tax ID) — required for ISR deduction claims on voluntary contributions
- Valid passport and immigration document (FM2/FM3 or Tarjeta de Residencia)
The US-Mexico Totalization Agreement (signed 1978, entered force June 29, 2004) is a bilateral treaty that coordinates Social Security benefits between the two countries. It solves two key problems: dual taxation (paying into both systems simultaneously) and eligibility gaps (not having enough years in either country to qualify for any pension).
How totalization works for eligibility:
- The US requires 40 quarters (10 years) of Social Security contributions to receive any US pension
- Mexico requires 875+ semanas cotizadas (in 2026) to receive any IMSS pension
- Under totalization, if you have 20 US quarters and 600 Mexican semanas, each country combines your total credits to determine if you’re eligible — and then pays a proportional pension based only on your time in their own system
| Worker Scenario | US Benefit | Mexico Benefit |
|---|---|---|
| 15 US years + 10 Mexico years | SSA pays pension based on 15 US years, using combined 25 years for eligibility | IMSS pays AFORE-based pension for 10 Mexico years |
| 5 US years + 20 Mexico years | Uses 25 combined years for US eligibility; SSA pays benefit based on 5 US years only | IMSS pays full Mexico pension for 20 years |
| US citizen working only in Mexico | Not eligible for US SS from Mexican period | Full AFORE + Pensión Garantizada if eligible |
Yes — workers who permanently emigrate from Mexico are entitled to withdraw their full AFORE balance, subject to ISR tax withholding. This is called Retiro por Desempleo y Cambio de Domicilio al Extranjero. The key rules:
- Unemployment requirement: You must have been unemployed from your last Mexican formal employment for at least 46 days
- ISR withholding: The AFORE withholds ISR on the taxable portion of the balance. Mandatory employer contributions are taxable; long-term voluntary contributions (Aportaciones Complementarias) that were previously ISR-deducted are fully taxable upon withdrawal
- Short-term voluntary contributions made without taking an ISR deduction can be withdrawn tax-free
- Documents required: Passport, proof of foreign residence or visa, CURP, CLABE bank account for MXN deposit (or request international wire transfer from some AFOREs)
- Processing time: Typically 2–4 weeks
If you plan to retire in Mexico but have expenses in US dollars (medical care in the US, US family support, US mortgage, travel), the Mexican peso’s historical depreciation against the dollar is a serious retirement risk. The peso has weakened significantly over long periods:
| Year | MXN/USD Rate (approx.) | Change |
|---|---|---|
| 2000 | 9.5 | Baseline |
| 2010 | 13.1 | +38% depreciation in 10 years |
| 2016 | 21.0 | +60% depreciation from 2010 |
| 2020 | 24.5 | COVID shock |
| 2023 | 17.2 | Peso appreciation (nearshoring) |
| April 2026 | ~17.2 | Banxico Fix rate |
What this means for retirement: A MXN $20,000/month pension that equals $1,163 USD today at 17.2 would only equal $793 USD in 10 years at a 3.8% annual depreciation scenario — a 32% real purchasing power loss in USD terms. Three strategies to hedge this risk:
- Hold USD-denominated assets separately — US 401(k), IRA, or USD savings account as a dollar income floor
- Maximize voluntary AFORE contributions now — larger peso balance partially offsets currency loss
- Retire in a lower-cost Mexican city — smaller cities like Mérida, Oaxaca, or San Luis Potosí have significantly lower costs than CDMX or Monterrey, making the same MXN pension more adequate
Use the free 5-tab calculator above to get your personalized AFORE balance projection, LSS-1973 vs 1997 comparison, Pensión Garantizada eligibility check, ISR tax savings estimate, and currency scenario analysis — all powered by 2026 CONSAR, IMSS, SAT, and Banxico data.
Calculators from the same category — directly relevant to Mexican financial planning and cross-border scenarios
If you are self-employed, a business owner, or earn freelance income in Mexico, IVA (Impuesto al Valor Agregado) directly interacts with your AFORE obligations. Understanding your net after-IVA income is essential for accurately setting voluntary contribution amounts and ISR deduction calculations.
US retirement tools that directly complement AFORE planning — especially for bi-national workers and US expats
Estimate your US Social Security benefit based on your earnings history and planned retirement age. Directly pairs with the AFORE calculator’s Tab 5 Totalization tool — for workers with years in both the US and Mexico.
If you’re a US expat contributing to both an AFORE and a 401(k), or a Mexican national with a US employer, this calculator projects your 401(k) balance at retirement alongside your AFORE projection — giving you a complete bi-national retirement picture.
Maximize ISR deductions, understand tax brackets, and plan capital gains — all relevant to AFORE contributions and retirement income
Manage monthly cash flow to free up voluntary contribution budget — the foundation of a strong AFORE strategy
Protect your retirement plan against disability, long-term care costs, and income interruption before your AFORE matures
Browse all 200+ free financial calculators across 8 major categories. No registration required — every tool runs entirely in your browser.
SIEFORE returns, ISR brackets, IMSS weeks thresholds, and MXN/USD rate verified against official government sources
Important Legal Disclaimer — Read Before Using Calculator Results
This disclaimer applies to all outputs, projections, estimates, pension figures, and recommendations generated by the Mexico AFORE Retirement Calculator on USFinanceCalculators.com.
The Mexico AFORE Retirement Calculator is provided solely for educational and informational purposes. All results — including projected AFORE balances, monthly pension estimates, ISR refund amounts, Pensión Garantizada eligibility determinations, regime comparison figures, and adequacy ratings — are mathematical estimates based on publicly available 2026 parameters and simplified assumptions. They do not constitute, and must not be interpreted as, financial advice, legal advice, tax advice, or any professional recommendation of any kind.
Actual pension outcomes depend on factors that this calculator cannot fully model, including: actual SIEFORE investment performance (which fluctuates and may be negative in any given year), changes to Mexican federal law, IMSS administrative decisions, individual contribution records held by your specific AFORE provider, future inflation rates, future MXN/USD exchange rates, and your personal health, marital status, and beneficiary designations at the time of retirement.
- 1Not a substitute for professional advice. Consult a certified planificador financiero, IMSS pension gestor, or qualified SAT-registered tax advisor for decisions involving real money, legal rights, or retirement elections.
- 2AFORE balance projections are illustrative. SIEFORE Generacional returns shown (3.8%–6.0%) are 10-year trailing real returns per CONSAR. Future returns are not guaranteed and may be materially different, including negative returns in any given year.
- 3LSS-1973 vs. LSS-1997 regime comparison is an estimate only. The actual pension formula under LSS-1973 depends on your complete wage history, number of weeks contributed, disability history, and IMSS actuarial tables — not solely the simplified inputs in this calculator. Obtain a formal resolución de pensión from IMSS before making any election.
- 4Pensión Garantizada thresholds change by law. The escalating weeks requirement schedule (1,000 weeks by 2031) is based on the 2020 IMSS reform as published in the DOF. Congress may amend these requirements. Always verify current thresholds directly with IMSS.
- 5ISR deduction amounts are approximate. The ISR refund calculator uses the 2026 SAT annual brackets and assumes standard deduction eligibility. Actual refunds depend on your complete tax situation, other deductions claimed, and annual ISR declaration outcomes.
- 6MXN/USD exchange rate projections are scenarios only. The three currency scenarios (optimistic/base/pessimistic) are based on historical volatility analysis — they are not forecasts. The peso has historically been highly volatile and actual rates at your retirement date may differ substantially.
- 7US-Mexico Totalization estimates are indicative. Actual Social Security benefits under the 1978 US-Mexico Totalization Agreement depend on your full SSA earnings record and IMSS contribution history. Contact the SSA directly at ssa.gov for an official estimate.
- 8USFinanceCalculators.com accepts no liability for any financial decisions made in reliance on outputs from this calculator. Use at your own risk. Past calculator accuracy is not a guarantee of future accuracy as laws, contribution rates, and economic conditions change.
For LSS-1973 elections and official semanas cotizadas verification, visit your local IMSS office or use imss.gob.mx/tramites/pensiones to initiate your official pension claim.
For personalized retirement strategies, investment allocation decisions, and voluntary contribution planning, consult a CNBV-registered planificador financiero certificado or AMIB-certified advisor.
For ISR deduction eligibility, annual tax declaration optimization, and AFORE Aportaciones Complementarias tax treatment, consult a licensed contador público registered with SAT.
For your actual balance, investment returns, contribution history, and SIEFORE assignment, contact your AFORE provider directly or use CONSAR’s e-SAR portal for official records.
The Mexico AFORE Retirement Calculator runs entirely in your browser using client-side JavaScript. No salary data, AFORE balance, semanas cotizadas, or any other personal financial information you enter is ever transmitted to any server, stored in any database, or shared with any third party.
All calculations run locally in your browser — no data leaves your device
Calculator inputs are not tracked, profiled, or linked to any identity
No sign-up, email, or registration needed to use any calculator feature
Any browser-cached inputs are cleared when you close the tab
All formulas and data sources are documented publicly on this page
No premium tier, no paywalled features — 100% free forever
🏛️ Official Government & Institutional Sources
Every data point in the AFORE calculator is traceable to an official published source. The seven agencies below are the authoritative legal and statistical sources for Mexico’s retirement system. All links open official government domains (.gob.mx or .org.mx) in a new tab.
The core formula for each of the five calculator tabs, the data source used, and the regulatory year the formula applies to. All formulas are simplified models of the underlying legal framework.
| Tab / Feature | Formula / Logic | Primary Source | Data Year |
|---|---|---|---|
| Tab 1 — AFORE Balance |
Future value of monthly employer contributions compounded at SIEFORE real net return
FV = B₀(1+r)ⁿ + C·[(1+r)ⁿ−1]/r
where B₀ = current balance, C = monthly contributions (employer + worker + voluntary), r = monthly real return, n = months to retirement
|
CONSAR SIEFORE Rendimiento Neto tables | 2026 Q1 |
| Tab 1 — Employer Rate |
Phased rate increase 2023–2030 per DOF reform
2023: 13.875% → 2024: 14.25% → 2025: 14.625% → 2026: 15.00% (full rate from 2030: 15.00%)
|
DOF 16-XII-2020 IMSS Reform | Reform 2020 |
| Tab 2 — LSS-1973 Pension |
Defined-benefit formula based on years of service, salary, and semanas cotizadas
Pension = SBC × Age_Factor × Years_Factor × Semanas_Factor
Replacement rate 35%–100% depending on weeks & salary; subject to minimum 1 UMA/day
|
IMSS LSS-1973 Arts. 160–169 | LSS 1973 |
| Tab 3 — Semanas Cotizadas |
Minimum weeks threshold escalating schedule from 2020 reform
Threshold(year) = 750 (2021) → 800 → 850 → 900 → 950 → 1,000 (2031+)
Pensión Garantizada Tier 1 = minimum UMA pension; Tier 2 = salary match
|
IMSS + DOF 2020 | 2020 Reform |
| Tab 4 — ISR Refund |
Marginal ISR rate applied to annual voluntary contribution amount
RefundAmount = VolContrib × MarginalISR_Rate(bracket)
Subject to Art. 151 LISR deduction cap: 15% of annual income or 5 UMA annual, whichever is lower
|
SAT LISR Art. 151 & 152 — 2026 brackets | 2026 SAT |
| Tab 5 — Currency Scenarios |
Three MXN/USD rate projections at retirement using historical depreciation modeling
Rate(t) = Rate₀ × (1 + δ)ᵗ
Optimistic δ = −1.5%/yr; Base δ = +3.8%/yr; Pessimistic δ = +7.2%/yr (vs. 10-yr avg.)
|
Banxico historical MXN/USD FIX series | Banxico 2026 |
| Tab 5 — Totalization |
Combined US Social Security benefit estimated using simplified PIA formula
SSBenefit ≈ 0.90×AIME (first $1,115) + 0.32×AIME (next $6,721) + 0.15×remainder
Eligibility requires combined credits ≥ 40 quarters under totalization rules
|
SSA Mexico Totalization Agreement | 2026 SSA |
Each data parameter has a different update frequency. Parameters marked 🔴 should be independently verified if you are making significant financial decisions.
| Parameter | Source | Update Frequency | Last Verified | Status |
|---|---|---|---|---|
| SIEFORE Generacional returns (3.8%–6.0%) | CONSAR Rendimiento Neto | Quarterly | April 2026 | Current |
| Employer contribution rate (15.00% in 2026) | DOF / CONSAR Reform | Annual (per schedule) | Jan 1, 2026 | Current |
| ISR income tax brackets (2026) | SAT / LISR Art. 152 | Annual (Jan 1) | Jan 1, 2026 | Current |
| Pensión Garantizada — minimum weeks schedule | IMSS / DOF 2020 Reform | Per reform schedule (annual) | Jan 1, 2026 | Current |
| UMA value (Unidad de Medida y Actualización) | INEGI / DOF annual decree | Annual (Feb 1) | Feb 1, 2026 | Current |
| MXN/USD baseline rate (~17.20) | Banxico FIX rate | Daily (live market) | April 2026 avg. | Approximate |
| Life expectancy at 65 (M: 18.4 yrs / F: 21.2 yrs) | INEGI mortality tables | Every 5 years (census cycle) | 2020 Census | 2020 data |
| US Social Security benefit formula (PIA/AIME) | SSA Publication No. 05-10070 | Annual (Jan 1) | 2026 SSA | Current |
| LSS-1973 defined-benefit pension formula | Ley del Seguro Social 1973 | Legislative (no change since 1997) | LSS 1973 original | Stable |
| City cost-of-living adequacy thresholds (MXN) | INEGI ENIGH survey | Every 2 years | ENIGH 2022 | Estimated 2026 |
Spanish-language pension terms used throughout the calculator, with official definitions and source references.
