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Free US Mortgage Refinance Calculator: Break-Even & Closing Costs

Compare your current mortgage against 4 distinct refinance strategies, including Rate-and-Term and Cash-Out loans. Calculate your exact break-even month, Net Tangible Benefit (NPV), and PMI removal savings. Model ARM risk caps and view a full side-by-side amortization to avoid the hidden reset penalty before signing your official Loan Estimate.

📅 True Break-Even Date 📊 NPV Analysis 🏠 PMI Removal Savings 📈 ARM Risk Modeling 🔍 4 Refi Types 📋 Amortization Compare
📡 Live Market Rate Reference — April 2026 (Bankrate / Zillow)
30-yr Fixed Refi
6.71%
15-yr Fixed Refi
5.85%
5/1 ARM
5.69%
FHA 30-yr
6.06%
🏠 Current Loan Details
$
$
%
yrs
$
mo
🔄 New Loan Terms
%
$
$
%
%
%
mo
💰 Closing Costs
$
0
📊 Opportunity Cost
%
%
7
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Your refinance analysis will appear here.
Enter your current loan details and the new terms you’ve been offered to get a full breakdown.

Refinance Analysis
Calculating…
Break-Even: —
Rate Δ: —
⚠️ ARM Risk Assessment
New Monthly Payment
—
vs — current
Monthly Savings
—
per month
Lifetime Interest Saved
—
vs keeping current loan
After-Tax Rate (New)
—
effective cost of debt
New LTV
—
current home value
Total Interest (New)
—
full term
📅 Break-Even Timeline
Today Break-Even: — Your Stay: 7 yrs
⚖️ Net Present Value Analysis
NPV of Refinancing
—
NPV Staying Put
—
NPV discounts all future cash flows at your investment return rate, giving you the true economic value of each choice over your planned stay.
📋 Annual Amortization Comparison
Year Cur. Balance Cur. Int. New Balance New Int. Savings
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How Our Refinance Engine Works: Net Tangible Benefit & Amortization

A step-by-step guide to every input, every engine, and what each result actually means
1
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Choose Your Refi Type

Select from 4 refinance modes: Rate & Term (lower rate), Cash-Out (tap equity), ARM→Fixed (escape uncertainty), or Shorten Term (30→15yr). Each mode unlocks different input panels and applies the correct financial logic automatically.

Required first
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Enter Current Loan Details

Input your remaining balance, home value (for LTV), current rate, remaining term, monthly PMI (enter $0 if none), and months already paid. Find these on your most recent mortgage statement or servicer portal.

From your statement
3
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Enter New Loan Terms

Input the new rate and term from your lender’s Loan Estimate. Use actual quotes — not current market averages — for the most accurate breakeven. For ARM→Fixed, enter your current ARM rate, rate cap, and months to next reset.

Use your Loan Estimate
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Enter Closing Costs

Total your lender fees, title costs, appraisal, and discount points from Page 2 of your Loan Estimate. Toggle “Roll costs into loan?” to model financing them vs. paying upfront. Rolling costs increases your balance but reduces cash needed at closing.

Page 2 of Loan Estimate
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Set Tax & Opportunity Profile

Enter your marginal federal tax rate and expected investment return (default 8%). The NPV engine discounts all future cash flows at your investment rate, so you see the true economic cost of refinancing vs. staying and investing the closing cost savings.

Drives NPV accuracy
6
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Set Your Stay Period & Calculate

Drag the “Years You Plan to Stay” slider. This single input determines your verdict — the calculator compares your stay period directly against the break-even date to issue a Go / Wait / Caution verdict with full NPV confirmation.

Most critical input
✅ Pro Shortcut: If you received multiple lender quotes, run the calculator once per quote using each lender’s exact rate + closing costs. Compare the break-even dates — the quote with the shortest break-even wins if you plan to stay longer than all of them.
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The Hidden Costs of Refinancing: Escrow Funding & The Amortization Reset Penalty

Everything you need to understand before you use the Mortgage Refinance Calculator — in plain English
🎓 Goal of refinancing: trade a one-time cost today (closing costs) for lower monthly payments, lower total interest, or lower risk tomorrow. The calculator helps you check if that trade actually pays off for your loan and timeline.
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How refinancing works

You take out a new mortgage that pays off your existing mortgage. From that day forward, you make payments on the new loan only. The new loan has its own rate, term, closing costs, and amortization schedule. Your old loan stops existing.

Key concept
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Reasons people refinance

Most borrowers refinance to lower their monthly payment, shorten the term, switch from ARM to fixed, remove PMI, or tap home equity with a cash-out. This calculator supports all four scenarios so you can see the numbers behind each decision.

Why it exists
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The trade-off behind every refi

You pay closing costs upfront (and sometimes a slightly higher rate) in exchange for a different payment profile. The decision is good only if the long-term savings after your break-even date are bigger than the costs and risks you take on.

Cost vs benefit
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Why break-even matters so much

Break-even tells you how many months it takes for your monthly savings to repay what you spent on closing costs. If you move or refinance again before that point, you never recover the initial cost. That is why this calculator always asks how long you plan to stay.

Critical metric
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Why NPV is even better than break-even

Break-even ignores what you could have earned by investing your closing-cost money elsewhere. NPV discounts all future payments using your chosen investment return so you can compare “refi vs stay” on an equal, time-value-of-money basis.

Advanced but important
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What this tool does for you

Instead of eyeballing rates and guessing, the calculator crunches the full amortization for both loans, factors in PMI and tax effects, and tells you: Will I save money? When do I break even? And how big is the win or loss over my stay period?

Why use a calculator
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Real US Refinance Scenarios: Rate-and-Term vs. Cash-Out Loans

Step-by-step scenarios covering all 4 refinance types — see the exact numbers behind each verdict
Rate & Term · Example 1
The Long-Stay Homeowner
Clear break-even, strong NPV win
Current Balance$420,000
Current Rate → New7.25% → 6.50%
Monthly Savings+$198/mo
Closing Costs$7,200
Break-Even36 months
Plans to Stay12 years
Lifetime Saved$47,400
✅ Refinance Now — Strong Economic Win
Rate & Term · Example 2
The Likely Mover
Moves before break-even: money lost
Current Balance$310,000
Current Rate → New7.00% → 6.625%
Monthly Savings+$78/mo
Closing Costs$6,800
Break-Even87 months
Plans to Stay4 years
Unrecovered Cost−$3,056
🚫 Wait — You Move Before Break-Even
Cash-Out · Example 3
The Debt Consolidator
Eliminates $35K credit card debt
Current Balance$380,000
Cash-Out Amount$35,000
CC Debt APR Eliminated22.5%
New Mortgage Rate6.75%
Net Monthly Relief+$344/mo
Break-Even22 months
5-Year Debt Savings$20,640
✅ Refinance — Debt Cost Reduction Win
ARM → Fixed · Example 4
The ARM Risk Escaper
Locks in before a dangerous reset
Current Balance$445,000
ARM Rate (current)5.75%
ARM Cap Risk10.75% worst case
New Fixed Rate6.80%
Months to Reset14 months
Max Payment Risk+$1,140/mo
Payment at Cap vs Fixed$3,280 vs $2,910
⚠️ Refinance Now — Lock in Before Reset
Shorten Term · Example 5
The Equity Accelerator
30-year → 15-year, interest annihilated
Current Balance$390,000
Old Rate (27yr left)7.00%
New 15-yr Rate5.85%
New Monthly Payment+$471/mo higher
Total Interest Saved$189,300
Paid Off By2041 vs 2053
Equity in 10 years$42K more
✅ Refinance — Massive Long-Term Wealth Gain
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Expert Closing Strategies: Appraisal Waivers, Lender Credits & PMI Removal

What experienced borrowers know that first-timers miss — strategies that can save thousands
1
Rate Shopping
Shop 3+ Lenders Within 14 Days

CFPB data shows that getting just one extra quote saves $1,500 on average; three extra quotes saves over $3,000. FICO treats all mortgage inquiries within a 14-day window as a single inquiry — there is zero cost to shopping aggressively. Always include a credit union in your comparison: they typically offer 0.25–0.5% lower rates than big banks.

🎯 Run this calculator once per quote to compare break-even dates — the winning quote has the shortest break-even, not necessarily the lowest advertised rate.
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Timing
Don’t Wait for the “Perfect” Rate

Trying to time mortgage rates is like timing the stock market — almost nobody does it successfully. A better rule: refinance when the break-even is under 36 months AND you plan to stay at least 5 years. If rates drop further, you can refinance again. The cost of waiting for a 0.25% better rate (hoping for months) often exceeds what you’d save from the better rate itself.

📅 “Marry the house, date the rate” — plan to refinance when economics make sense, not when you predict the bottom.
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Closing Costs
Negotiate Lender Fees — Not Title Costs

Lender origination fees (Section A of Loan Estimate) are fully negotiable — sometimes by $500–$1,500. Title insurance and government recording fees (Section B/C) are set by third parties and rarely negotiable. Use competing lender quotes to negotiate: “Lender B offered me 6.5% with $1,000 in origination fees. Can you match or beat that?” Many lenders will reduce fees to win your business.

💡 Ask specifically about a “no-cost refinance” — lender credits cover all costs in exchange for a 0.125–0.25% higher rate. Works well if you plan to sell within 3 years.
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NPV Thinking
Always Run the NPV Check

A refinance can have a 30-month break-even (looks great!) but still have a higher NPV than staying put — meaning once you factor in what you could earn by investing the closing cost money, staying is actually cheaper. This is especially true for high earners who invest aggressively (10%+ returns). The NPV panel in this calculator runs this check automatically for you.

📊 If both break-even AND NPV favor refinancing, proceed with confidence. If they disagree, read the NPV note carefully — the conflict usually means your stay period is borderline.
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Term Strategy
Refi to Your Remaining Term, Not 30 Years

If you have 22 years left on your mortgage, refinancing into a new 30-year loan extends your debt by 8 years. Instead, ask your lender for a 20-year or 22-year term. Most lenders accommodate custom terms. The rate will be slightly higher than 30-year but lower than 15-year, and you avoid the “hidden cost” of extending your loan. This strategy maximizes lifetime interest savings while keeping payments manageable.

🔢 Use the Amortization Comparison table in this calculator to see exactly how much extra interest a 30-year refi costs vs. matching your remaining term.
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Mortgage Refinancing & Loan Estimate Frequently Asked Questions (FAQ)

Expert answers to the 20 most common refinancing questions — covering break-even, NPV, cash-out, ARM risks, PMI, and more
Mortgage refinancing means replacing your existing home loan with a new one — typically to get a lower interest rate, change the loan term, access home equity, or eliminate PMI. The new lender pays off your old loan and issues you a new mortgage with new terms. You will have new closing costs, a new monthly payment, and a reset amortization schedule. Whether refinancing is worthwhile depends entirely on how long you plan to stay in the home relative to your break-even date.
  • Rate-and-Term Refinance: Changes your interest rate, loan term, or both. No cash taken out. The most common refinance type, used to lower monthly payments or shorten loan life.
  • Cash-Out Refinance: Borrows more than your current balance, with the difference paid to you in cash. Used for home improvements, debt consolidation, or investments. Typically requires keeping LTV at or below 80%.
  • ARM-to-Fixed Refinance: Converts an adjustable-rate mortgage to a fixed rate, eliminating future rate risk and payment unpredictability.
  • Shorten-Term Refinance: Moves from a 30-year to a 15-year (or similar) loan. Monthly payments increase but total interest paid drops dramatically and you build equity faster.
  • Conventional loans: Minimum 620, but scores of 740+ get the best rates.
  • FHA Streamline Refinance: No minimum FICO check in many cases — focuses on payment history.
  • VA IRRRL (Interest Rate Reduction Refinance Loan): No hard minimum; lenders typically require 580–620.
  • Cash-out refinance: Most lenders require 640–680 minimum, with LTV under 80%.
Every 20-point FICO improvement can lower your offered rate by 0.125–0.25%. If your score has improved significantly since your original loan, refinancing may unlock substantially better terms.
Break-even (months) = Total Closing Costs ÷ Monthly Payment Savings. Example: Closing costs $7,200, monthly savings $198/mo → Break-even = 36.4 months (~3 years). If you stay longer than 3 years, refinancing saves money. If you leave before 3 years, you lose the unrecovered closing costs. This calculator also factors in PMI savings if refinancing removes your PMI obligation (new LTV drops below 80%), which shortens the true break-even further.
Net Present Value (NPV) converts all future cash flows into today’s dollars, accounting for the opportunity cost of money. The calculator computes: (1) NPV of Refinancing = present value of all future monthly payments at your new rate + upfront closing costs; (2) NPV of Staying = present value of all future payments at your current rate. The option with the lower NPV is cheaper in today’s dollars. This catches situations where a short break-even looks good but the opportunity cost of paying closing costs now outweighs the savings — especially for high-return investors.
Most lender-provided break-even tools use a simplified formula: Closing Costs ÷ Monthly Savings. This calculator uses a more comprehensive approach: it factors in (1) PMI removal savings if your new LTV drops below 80%; (2) points cost added to closing costs separately; (3) rolled-in costs increasing your new loan balance (which changes the monthly savings); and (4) NPV discounting for opportunity cost. The result is a more conservative and accurate break-even that better reflects real-world economics.
Cash-out refinancing is most advantageous when: (1) You have high-interest debt (credit cards at 20%+) to consolidate — replacing 22% APR with 7% mortgage debt saves money fast; (2) You are funding home improvements that increase property value and your equity; (3) Current mortgage rates are not significantly higher than your existing rate. Avoid cash-out if: you plan to sell within 2–3 years (you’ll pay closing costs but not recover them), or if you’re using cash for consumables (vacations, cars) — you’re converting short-term debt to 30-year mortgage debt.
ARM-to-Fixed refinancing makes the most sense when: (1) Your ARM reset is approaching (within 12–18 months) and rates are elevated; (2) The current fixed rate is not significantly higher than your ARM rate, making the “insurance premium” low; (3) You plan to stay in the home beyond the ARM fixed period, exposing yourself to multiple rate resets. The calculator shows your maximum payment risk at ARM cap — if the difference between your current ARM payment and the worst-case cap payment exceeds the cost of locking in a fixed rate, refinancing is almost always justified.
A 30→15-year refinance is one of the highest-impact financial decisions you can make — but it requires cash flow discipline. The typical outcome: your monthly payment rises by $300–$600/month, but you: (1) pay off the loan 12–15 years sooner; (2) save $100,000–$200,000+ in interest; (3) build equity dramatically faster. The key test: can you comfortably afford the higher payment without straining your budget? If yes and you plan to stay long-term, the wealth creation is exceptional. If cash flow is tight, consider a 20-year instead as a middle ground.
The “1% rule” states: refinance if you can lower your rate by at least 1%. It is a useful rule of thumb but dangerously oversimplified. A 1% drop on a $150,000 balance saves much less per month than the same drop on a $600,000 loan — and the same $6,000 in closing costs takes very different times to recoup. A more reliable test: Run the break-even calculation and confirm it’s shorter than your planned stay period. Additionally, confirm NPV favors refinancing when your investment alternative returns are factored in.
CFPB research consistently shows that getting 3+ competing quotes saves borrowers an average of $1,500 in closing costs and 0.25–0.50% in rate vs. going directly to their current lender. Your existing lender may offer a “streamline” with reduced paperwork — but their rate is rarely competitive. Strategy: Get quotes from 2 online lenders (Better, Rocket), 1 local credit union, and your current lender. Use this calculator to run the break-even for each quote. The best deal is the one with the shortest break-even, not necessarily the lowest rate.
  • Conventional loans: Typically 6 months (some lenders require 12 months for cash-out).
  • FHA Streamline: Minimum 210 days after closing and 6 monthly payments made.
  • VA IRRRL: 210 days after your first payment was due.
  • No restriction: Some lenders allow refinancing sooner, especially if rates have dropped significantly. Check your original loan for prepayment penalties — rare since 2014 but still present on some non-QM loans.
Even if you’re eligible, refinancing immediately after purchase rarely makes economic sense unless rates have dropped dramatically (1%+) — you paid closing costs once already.
Yes, temporarily. A refinance triggers a hard credit inquiry (typically −2 to −5 points) and opens a new account (which lowers average account age, another small negative). Most borrowers recover fully within 6–12 months. Rate-shopping mitigation: FICO treats multiple mortgage inquiries within a 14–45 day window as a single inquiry — so shop aggressively within that window. The long-term positive effects (lower debt load, on-time payment history) far outweigh the short-term dip.
Rate locks typically last 30, 45, or 60 days. General guidance: lock when you have a quote that makes your break-even work, rather than trying to time the market. Longer lock periods cost more (typically 0.125–0.25% higher rate). If your refinance timeline is complex (rental property, self-employed income verification), opt for a 60-day lock to avoid extension fees ($500–$1,000). Float-down options — which let you lower your locked rate if rates fall — cost extra but can be worth it during rate volatility.
Most refinance closing costs are not directly deductible — but there are important exceptions:
  • Discount points on a refi: Deductible, but must be amortized (spread evenly over the loan term). For a 30-year loan, 1 point = 1/360 deducted per month. IRS Publication 936.
  • Mortgage interest: The interest portion of your new payments is deductible on Schedule A (if you itemize) up to $750K of acquisition debt.
  • Cash-out for home improvement: Interest on cash-out used for substantial home improvement is fully deductible up to the loan limit. Used for other purposes? Partially limited.
  • Non-deductible: Appraisal, title insurance, recording fees, lender fees.
Your PMI situation resets at refinance time based on your new LTV:
  • New LTV ≤ 80%: No PMI required. If you were previously paying PMI, refinancing eliminates it permanently — a significant monthly saving the calculator factors into break-even.
  • New LTV 80–90%: PMI will be required on the new loan, typically at the current lender’s rates. This can be higher or lower than your old PMI depending on your credit score and LTV.
  • New LTV > 90%: Conventional lenders will require PMI. FHA and VA have different structures (MIP vs. no PMI).
This calculator shows a PMI Removal Opportunity panel whenever your current loan carries PMI — helping you quantify the bonus savings from PMI elimination.
Typical 2026 refinance closing costs range from 2–5% of the loan balance:
  • Lender origination fees: $1,000–$2,500
  • Appraisal: $500–$900
  • Title insurance & settlement: $1,500–$3,000
  • Recording fees: $50–$200
  • Prepaid interest (days 1–30): varies
  • Discount points (optional): 1% = 1% of loan balance per point
On a $400,000 loan, expect $8,000–$16,000 in total costs. Always compare the Loan Estimate’s Section A (lender fees) across multiple quotes — this is where the biggest variation exists.
Rolling closing costs into the loan (adding them to your new balance) eliminates the upfront cash requirement but has long-term costs. On a $7,000 closing cost rolled into a 30-year loan at 6.5%: you’ll pay approximately $14,800 in total over the loan life — more than double. The break-even is also technically shorter (no out-of-pocket cost), but you’re paying more total interest. Best approach: Pay upfront if you have the cash and plan to stay 7+ years. Roll them in if you’re cash-constrained or plan to sell/refi again within 5 years.
Standard refinance documentation includes:
  • Income: 2 years W-2s or tax returns (self-employed: 2 years business returns + P&L); 30 days recent pay stubs
  • Assets: 2–3 months bank statements, retirement/investment account statements
  • Property: Current mortgage statement, homeowner’s insurance declarations, HOA statement (if applicable)
  • Identity: Government-issued photo ID, Social Security number
FHA Streamline and VA IRRRL require significantly less documentation — often no new appraisal or income verification — making them faster (3–4 weeks vs. 30–45 days for conventional).
Refinancing resets your amortization schedule, which has an often-overlooked effect: even at a lower rate, extending your term can increase total interest paid. Example: You have 22 years left at 7.00%. You refinance into a new 30-year at 6.50%. Your monthly payment drops and your break-even is 3 years — but you’ve added 8 years of payments. Total interest paid may be higher even though the rate is lower. This calculator’s Amortization Comparison table shows annual interest paid side-by-side so you can see the full picture. For the best outcome: refinance to the same remaining term or shorter whenever possible.
📋 Showing 20 of 20 questions  ·  Sources: IRS Pub. 936, CFPB, Freddie Mac, HUD
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Editorial Transparency, CFPB Guidelines & Calculator Methodology

This calculator is provided for educational and informational purposes only. It does not constitute financial, tax, or legal advice. All calculations are based on standard mortgage amortization formulas and user-entered assumptions. Real-world refinance outcomes will differ based on your credit profile, lender-specific pricing, actual closing costs, escrow adjustments, and applicable state laws.

⚙️ Calculator Assumptions
  • Monthly compounding using standard amortization formula
  • Break-even assumes level monthly savings throughout stay period
  • NPV discounts cash flows at user-entered investment return rate
  • PMI elimination assumes new LTV below 80% only
  • ARM cap risk uses user-entered cap rate — actual caps vary by loan contract
  • Tax deductibility follows IRS Publication 936 framework; actual eligibility requires CPA review
  • Rate reference bar shows market averages — your personal rate will differ
📋 Always Consult Professionals
  • A licensed mortgage loan officer (NMLS) for personalized rate quotes
  • A CPA or tax advisor for deductibility and cash-out tax treatment
  • A HUD-approved housing counselor (free) if you’re considering a cash-out refinance
  • Your state’s housing finance agency for state-specific programs
  • A financial advisor to model opportunity cost vs. your actual investment portfolio
  • An attorney if your loan has a prepayment penalty or you’re refinancing from a non-QM loan
Official Sources & References
📘 IRS Publication 936 🏛️ CFPB — Refinancing Guide 📊 Freddie Mac PMMS Rates 🏠 HUD Refinancing Resources 📄 CFPB Loan Estimate Guide
No ads disguised as advice No affiliate lender links Formulas fully transparent IRS Publication 936 aligned CFPB Loan Estimate standard Updated May 2026