Mortgage Refinance Calculator — Break-Even, Monthly Savings & Closing Cost Comparison 2026
Your current rate is 7.25%. Your lender quoted 6.25%. That’s $342/month in savings — but the closing costs are $6,400. Should you refinance? The answer depends on one number your bank won’t calculate for you: how long until the savings exceed the cost. This calculator gives you that number instantly, compares all three ways to pay closing costs side-by-side, warns you if extending your term actually costs more in total interest, and shows your net savings at any year you plan to stay.
A mortgage refinance calculator determines your monthly payment savings from a new loan, calculates the break-even point in months, and shows your net financial position at any future date — accounting for closing costs and the impact of restarting your loan term.
Mortgage Refinance Calculator
Break-even · Monthly savings · Term extension warning · YES/NO verdict — free, no signup
| Scenario | Monthly Payment | Break-Even | Total Cost (7yr) |
|---|---|---|---|
| Pay Upfront Out of pocket at closing |
— | — | — |
| Roll Into Loan Added to loan balance |
— | — | — |
| No-Cost Higher rate, no upfront fee |
— | — | — |
What Type of Refinance Do You Need?
Rate & Term Refinance — Lower Your Rate or Change Your Term
The most common refinance. You replace your existing mortgage with a new loan at a lower interest rate, a different term, or both. No cash is extracted from the home. This is what most homeowners consider when rates drop.
When it makes sense:
- Your new rate is at least 0.5–1% below your current rate
- You plan to stay in the home past the break-even point
- You want to shorten your term (30yr to 15yr) and can handle the higher payment
- You want to eliminate PMI — if your home has appreciated to 20%+ equity, a rate-and-term refinance to a new conventional loan removes PMI entirely
Cash-Out Refinance — Tap Your Home Equity
You borrow more than you owe on the existing mortgage and receive the difference in cash. The new loan is larger than the old one. Common uses: home renovation, debt consolidation, major expenses.
Key constraints:
- Most lenders require you to leave 20% equity in the home (borrow up to 80% LTV)
- Your new loan amount = remaining balance + cash withdrawn
- Monthly payments are higher — the break-even analysis looks different than a rate-and-term refi
- Cash-out refinance rates are typically 0.25–0.5% higher than rate-and-term rates
Example: Home worth $420,000, balance $280,000. Maximum cash-out (80% LTV): $420,000 × 80% = $336,000 − $280,000 = $56,000 available. Your new loan: $336,000.
ARM → Fixed — Escape an Adjustable Rate
If you have an adjustable-rate mortgage (ARM) with a rate adjustment approaching, refinancing into a fixed-rate locks in certainty. The calculation is less about break-even and more about risk management: what will your ARM adjust to, and what is the fixed-rate alternative?
ARMs to watch in 2026: Many 5/1 ARMs originated in 2021–2022 are now in their adjustment period. If your ARM is adjusting to current index rates (typically Prime + margin), your rate could jump significantly. Refinancing into a 30-year fixed at 6.25–6.75% may cost more today than your current adjusted rate — but eliminates all future rate uncertainty.
→ Enter your current ARM rate and new fixed rate in the calculator above to see your exact monthly savings and break-even point.
How to Use This Mortgage Refinance Calculator
Current Loan Details
Remaining Balance: Your current outstanding principal — find this on your most recent mortgage statement.
Current Rate: Your existing interest rate. For ARMs, use your current effective rate, not the initial rate.
Years Remaining + Months: How much time is left on your loan. A 30-year mortgage originated 8 years ago has 22 years (264 months) remaining.
Home Value: Used to calculate your current equity percentage and check PMI elimination eligibility. If your loan balance is below 80% of this value, refinancing to a new conventional loan eliminates PMI.
Current Monthly PMI: If your original down payment was less than 20% and you haven’t yet reached 20% equity, enter your monthly PMI amount here. This is a cost you may eliminate through refinancing — and it factors into your true savings calculation.
New Loan Details
New Rate: Your quoted refinance rate. Use the rate from a lender’s Loan Estimate — not a marketing rate that may not reflect your credit profile.
New Term: The length of your new loan. This is where most refinance mistakes happen — see the Term Extension Warning section below.
Closing Costs
Estimated Closing Costs: Typical refinance closing costs run 2–5% of your outstanding loan balance. On a $320,000 balance, that’s $6,400–$16,000. These include:
| Cost Item | Typical Range |
|---|---|
| Origination/lender fee | $0–$3,000 |
| Appraisal | $500–$800 |
| Title insurance (lender) | $600–$1,500 |
| Escrow/closing fee | $400–$900 |
| Recording fees | $50–$200 |
| Prepaid interest | Varies |
| Property tax escrow (2 months) | Varies |
How to Pay Closing Costs — Choose Your Method
The calculator compares all three options simultaneously. Most refinance calculators only show one.
Pay Upfront: Pay closing costs in cash at closing. Your new loan balance equals only the refinanced principal. Lowest total cost if you stay long-term. Break-even is slower (more months to recover the cash outlay) but net savings over time are highest.
Roll Into Loan: Add closing costs to your new loan balance. Your balance becomes remaining principal + closing costs. No cash required at closing. Break-even is slightly faster (no upfront cash recovery) but you pay interest on the rolled-in costs for the life of the loan.
No-Cost (+rate): Lender covers closing costs by charging a higher interest rate (typically 0.125–0.25% above the standard rate). Zero cash required, zero added to loan balance. Break-even is immediate — but your monthly savings are smaller because of the higher rate, and total cost over a long hold period is higher than paying upfront.
Your Situation — How Long Will You Stay?
The stay-duration slider is the most honest feature this calculator provides. Refinancing math changes completely based on how long you keep the loan. Move the slider to your expected remaining time in the home — the calculator shows net savings at exactly that year.
General rules:
- Stay less than 2 years: Refinancing rarely makes sense (closing costs not recovered)
- Stay 3–5 years: Depends on rate savings and closing cost method
- Stay 7+ years: Paying closing costs upfront and maximising rate reduction is almost always optimal
- Uncertain timeline: No-cost refinance provides savings from day one with zero risk
Understanding Your Results
Monthly Payment Comparison — Current vs New
Your old payment and your new payment side-by-side, with monthly savings highlighted. This is the number homeowners focus on — but it’s incomplete without the break-even context.
Important: Monthly savings shown are P&I only. If your refinance also eliminates PMI, add that monthly amount to your savings. A borrower saving $180/month in rate reduction plus $220/month in eliminated PMI has $400/month in real savings — and a dramatically faster break-even.
Break-Even Point
Break-Even (months) = Total Closing Costs ÷ Monthly Payment Savings
If your closing costs are $6,400 and monthly savings are $342, break-even is approximately 19 months. Every month after that is net profit.
What the break-even tells you:
- Break-even < 24 months: Strong refinance case
- Break-even 24–48 months: Worthwhile if you’re confident about staying
- Break-even > 48 months: Only makes sense for long-term holds; consider no-cost option
- Break-even > 60 months: Refinancing likely doesn’t benefit you financially
Interest Saved vs Interest Added
This is the critical number most calculators don’t surface. The calculator distinguishes between two very different outcomes:
Interest saved: When you get a meaningfully lower rate AND keep a similar remaining term, you pay less total interest over the life of the loan.
Interest ADDED (Term Extension Warning): When you refinance a loan with 22 years remaining into a new 30-year mortgage, you add 8 years of payments. Even at a lower rate, those extra years can cost more in total interest than you save from the lower rate. The calculator flags this explicitly.
Real example from the tool:
Current: $320,000 at 7.25%, 25 years remaining
New: $320,000 at 6.25%, 30 years (new loan)
Monthly savings: $342/month
Total interest ADDED over full term: −$15,412 MORE
You save $342/month but pay $15,412 MORE in total interest by restarting the clock. If you stay in the home for 7 years and then sell, you’re ahead. If you keep the loan to maturity, you’re behind.
The solution: Match your new loan term to your remaining balance. If you have 22 years left, refinance into a 20-year loan (not 30). You get the lower rate without the term extension penalty. The calculator models 15, 20, and 30-year options simultaneously.
Savings by Year — Net of Closing Costs
The calculator shows your net financial position at any year you choose. At Year 7, for example, it shows total P&I savings since refinancing minus the closing costs you paid — giving a true net savings figure regardless of which closing cost method you chose.
This is essential for homeowners who are uncertain about their timeline. Compare year 3, year 5, and year 7 to understand how your net position changes over time.
Closing Cost Scenarios — Side-by-Side
The three-column comparison table is the most actionable output in the calculator. It shows:
| Scenario | Monthly Payment | Break-Even | Total Cost (7yr) |
|---|---|---|---|
| Pay Upfront | Lowest | Longer | Most savings |
| Roll Into Loan | Slightly higher | Slightly faster | Middle ground |
| No-Cost (+rate) | Slightly higher | Immediate | Least savings |
For a 7-year stay: Pay Upfront wins. For a 2-year stay: No-Cost wins. For uncertainty: No-Cost eliminates risk.
The Term Extension Problem — The Most Common Refinance Mistake
This warning is absent from almost every refinance calculator online, and it costs homeowners thousands.
When you refinance a mortgage, you choose a new term for your loan. Most homeowners automatically select 30 years — the standard. But if you’ve already paid down 8 or 10 years on your original mortgage, taking a new 30-year loan restarts the clock.
The math of restarting:
| Scenario | Rate | Term | Total Interest |
|---|---|---|---|
| Keep existing loan | 7.25% | 22 years left | $286,000 remaining |
| Refinance to 30yr | 6.25% | 30 years | $361,000 total |
| Refinance to 20yr | 6.25% | 20 years | $239,000 total |
Refinancing to 30 years at the lower rate costs $361,000 in total interest vs $286,000 on the existing loan — $75,000 more, despite the lower rate. Refinancing to 20 years costs $239,000 — saving $47,000 vs staying.
The rule: Never automatically select a 30-year term. Request a term equal to or shorter than your remaining loan life. Your monthly payment may be slightly higher than the 30-year option, but the total cost is dramatically lower.
For a borrower with 22 years remaining, the 20-year refinance is almost always optimal — you get the lower rate without the term reset penalty.
→ Use the New Term buttons (15yr / 20yr / 30yr) in the calculator above to compare total interest under each scenario before deciding.
LTV and DTI — What Lenders Check Before Approving a Refinance
Before any refinance is approved, lenders evaluate two ratios that determine both your eligibility and your rate. Most refinance calculators ignore these entirely — they matter.
Loan-to-Value Ratio (LTV)
LTV is your outstanding loan balance divided by your home’s current market value, expressed as a percentage.
LTV = (Loan Balance ÷ Home Value) × 100
Example: $280,000 balance ÷ $400,000 home = 70% LTV
Why LTV matters for refinancing:
| LTV | Impact |
|---|---|
| Below 80% | Best rates, no PMI required |
| 80%–90% | Slightly higher rates, PMI may apply |
| 90%–95% | Higher rates, limited lender options |
| Above 95% | Difficult to refinance conventionally |
For cash-out refinances, most lenders cap the new loan at 80% LTV — meaning you must leave 20% equity in the property. If your home has appreciated since purchase, your LTV may be significantly lower than when you originated the loan, improving your refinance options and rate.
Debt-to-Income Ratio (DTI)
DTI is your total monthly debt payments divided by your gross monthly income. Lenders use this to confirm you can handle the new mortgage payment.
DTI = (Total Monthly Debt Payments ÷ Gross Monthly Income) × 100
Example: $2,800 total debt ÷ $8,000 gross income = 35% DTI
Most conventional lenders prefer a back-end DTI below 43–45%. FHA refinances allow up to 57% with compensating factors. If your DTI exceeds these thresholds, your refinance application may be denied or require a co-borrower.
Credit score and LTV together determine your rate. At the same 70% LTV, a borrower with a 760 credit score gets a meaningfully lower rate than a borrower at 680. The combined effect of credit score + LTV on your APR is often larger than the rate improvement you’re trying to capture — check your credit before applying.
→ Enter your home value and remaining balance in the calculator above. The New Equity % output confirms your current LTV — and whether you qualify for PMI elimination.
When Does It Make Sense to Refinance?
The Rate Threshold
The commonly cited rule is “refinance if you can lower your rate by 1%.” This is too simplistic — the real threshold depends on your loan balance and how long you’ll stay.
A better framework:
Monthly savings = (Current rate - New rate) × Loan balance ÷ 12
Break-even = Closing costs ÷ Monthly savings
If Break-even < Planned stay → Refinance makes sense
If Break-even > Planned stay → Don't refinance (or use no-cost option)
On a $400,000 loan, a 0.5% rate reduction saves approximately $200/month. With $8,000 in closing costs, break-even is 40 months. If you plan to stay 4+ years, it’s worth it.
On a $100,000 loan, the same 0.5% rate reduction saves approximately $50/month. With $5,000 in closing costs, break-even is 100 months. A 1% or greater rate reduction is needed to justify refinancing at this balance.
2026 context: Average 30-year rates dropped from 7.19% in January 2025 to approximately 6.18–6.75% in early 2026. Homeowners who locked in rates above 7.25%–7.5% in late 2023 or 2024 are the prime refinance candidates in 2026.
Other Valid Reasons to Refinance
Eliminate PMI: If your home has appreciated and your loan balance is now below 80% of current value, refinancing to a new conventional loan removes PMI immediately. On a $400,000 home with $300,000 balance (75% LTV), a refinance eliminates PMI — potentially $150–$300/month. This savings compounds dramatically with the monthly payment comparison.
Shorten your term: Refinancing from a 30-year to a 15-year loan accelerates equity building and saves substantial total interest, even if your monthly payment increases. Use the Mortgage Payoff Calculator to model the equity impact of a shorter term.
Escape an ARM: Adjustable-rate mortgages offer lower initial rates but create payment uncertainty at each adjustment date. Locking into a fixed rate eliminates future payment surprises — especially valuable as you approach retirement or have a fixed income.
Cash-out for high-ROI purpose: Cash-out refinancing at mortgage rates (6–7%) to fund a home renovation that increases property value, pay off credit card debt at 20–29% APR, or fund a business investment can be financially rational — but only when the use of funds justifies the higher loan balance and extended loan term.
When NOT to Refinance
You’re moving within 2 years: Unless you use the no-cost option, you won’t recover closing costs before selling. Run the break-even calculation first.
You’re far into your loan term: If you’ve paid 24 of 30 years, refinancing into any loan longer than 6 years extends your debt. A 15-year refinance of your final 6 years may work mathematically; a 30-year new loan would be financially harmful regardless of rate.
Your credit has declined: If your credit score has dropped since origination, your refinance rate may not be better than your existing rate. Check your credit report and score before initiating a refinance application.
Closing costs are exceptionally high: In high-cost states (New York, California), refinance closing costs can run 4–6% of the loan balance. At these costs, you need a larger rate reduction or a longer stay to justify the expense.
No-Closing-Cost Refinance — When It Makes Sense
A no-closing-cost refinance eliminates upfront cash but doesn’t make costs disappear. The lender recoups costs through either a higher rate (lender credits) or rolling costs into the loan balance.
Lender credit structure (most common):
- Standard rate: 6.25%, closing costs $6,400
- No-cost rate: 6.50%, closing costs $0
- Monthly payment difference: ~$50/month
When no-cost wins:
- Planned stay under 3 years: You’re never paying back the $6,400, so why spend it?
- Uncertain timeline: If you might sell, the higher rate costs less than the guaranteed closing cost loss
- Rates expected to fall further: If you plan to refinance again in 12–18 months, why pay closing costs twice?
When paying upfront wins:
- Planned stay 5+ years: The lower rate compounds significantly over time
- Large loan balance: A 0.25% rate difference on $600,000 is $125/month — $1,500/year — the closing cost payback is fast
- Retirement planning: Locking the lowest possible rate for a long-term hold maximises monthly cash flow
The closing cost comparison table in the calculator shows your exact net position at your planned stay duration for all three scenarios — eliminating the guesswork.
FHA and VA Refinance — Streamline Options
FHA Streamline Refinance
If you have an existing FHA loan, the FHA Streamline allows you to refinance with minimal documentation — no appraisal required, no income verification in most cases. The rate reduction must be tangible (net tangible benefit test), and you must have made at least 6 payments on the existing loan.
The streamline eliminates the appraisal, which typically saves $500–$800 and removes the risk of the home appraising below the loan amount. For FHA borrowers with significant equity who want to remove MIP, a conventional loan refinance (not streamline) is required — and you must reach 20% equity. For dedicated FHA refinance tools, see our FHA Mortgage Calculator.
VA IRRRL (Interest Rate Reduction Refinance Loan)
Veterans with existing VA loans can use the VA’s streamline refinance — the IRRRL — to lower their rate with minimal documentation and no appraisal required in most cases. The VA funding fee for an IRRRL is a flat 0.50% — significantly lower than a new VA purchase loan. For VA-specific refinance calculations, see the VA Mortgage Calculator.
Frequently Asked Questions
How do I calculate the break-even point on a refinance?
Divide total closing costs by monthly payment savings. Example: $6,400 closing costs ÷ $320/month savings = 20-month break-even. If you plan to stay in the home longer than 20 months, refinancing makes financial sense. If you’re selling sooner, the refinance costs more than it saves.
Does refinancing reset my mortgage term?
Yes — if you choose a new 30-year term. Many homeowners make this mistake. If you have 22 years remaining on your current loan, refinancing into a new 30-year loan extends your debt by 8 years and can cost more in total interest despite the lower rate. Always request a term equal to or shorter than your remaining balance. A 20-year refinance on a loan with 22 years remaining gives you the lower rate without the term extension penalty.
Is it worth refinancing for 0.5% lower rate?
Depends on your loan balance and stay duration. On a $400,000 loan, 0.5% saves approximately $200/month. With $8,000 in closing costs, break-even is 40 months. If you stay 4+ years, it’s worth it. On a $150,000 loan, the same 0.5% saves approximately $75/month, and break-even at $5,000 closing costs is 67 months — less compelling unless you’re staying 6+ years.
What are typical mortgage refinance closing costs in 2026?
Expect 2–5% of your outstanding loan balance. On a $320,000 balance, that’s $6,400–$16,000 covering origination fees, appraisal ($500–$800), title insurance, escrow fees, and prepaid escrow items. No-closing-cost refinances are available but typically carry a 0.125–0.25% higher rate to offset the costs.
Should I refinance to a 15-year or 30-year mortgage?
15-year refinance rates typically run 0.5–0.75% below 30-year rates, and total interest paid is dramatically lower — but monthly payments are significantly higher. If the 15-year payment is under 28% of your gross monthly income and you value both interest savings and faster equity building, the 15-year wins financially. If the higher payment stretches your budget, the 30-year with extra payments offers similar benefits with more flexibility.
Can refinancing eliminate my PMI?
Yes — if your home has appreciated since purchase and your new loan balance would be below 80% of the current appraised value. A rate-and-term refinance to a conventional loan at 80% or below LTV eliminates PMI immediately. On a $400,000 home with a $290,000 balance (72.5% LTV), a new conventional loan carries no PMI — saving $150–$300/month in addition to any rate savings.
How soon can I refinance after my current mortgage?
Most lenders require a “seasoning period” of at least 6 months of on-time payments on your existing loan before refinancing. For FHA streamline and VA IRRRL refinances, 6 months is the minimum. For conventional rate-and-term refinances, there’s no mandatory waiting period — but practical considerations (closing costs not yet recovered, appraisal timing) typically make refinancing before 12 months financially suboptimal.
What is a no-cost refinance?
A refinance where the lender covers closing costs — either by rolling them into your loan balance or charging a slightly higher interest rate (lender credits). Zero cash is needed at closing. This makes sense when you’re uncertain about your stay duration or when rates may drop further soon, making a second refinance likely. The trade-off: slightly higher monthly payments vs. a conventional refinance where you pay costs upfront.
Should I refinance my mortgage right now?
Refinancing makes sense in 2026 if your current rate is above 7.0–7.25% and you plan to stay past your break-even point — typically 20–40 months with average closing costs. Homeowners who locked in rates in late 2023 and 2024 are the prime candidates as 30-year rates dropped from 7.19% in January 2025 to approximately 6.18–6.75% by early 2026. Enter your current rate and balance in the calculator above — if the break-even falls within your planned stay, refinancing is financially justified.
What credit score do I need to refinance?
Most conventional lenders require a minimum credit score of 620 to refinance. To qualify for the best rates, aim for 740+. FHA streamline refinances have no minimum credit score requirement through the VA and FHA programs. Your credit score combined with your LTV directly determines your offered rate — a 760 score at 70% LTV gets significantly better terms than a 680 score at the same LTV. Check your credit report before applying and resolve any errors, as a 20-point improvement can mean a meaningfully better rate.
What entities and terms should I understand before refinancing?
Key refinance terms: LTV (loan-to-value) — your balance divided by home value; DTI (debt-to-income) — monthly debt obligations divided by gross income; APR — the true cost of the loan including fees; amortization — how payments split between interest and principal over time; PITI — principal, interest, taxes, and insurance as a combined monthly cost. Understanding these entities helps you evaluate Loan Estimates from multiple lenders accurately.
Related Calculators
To model your complete monthly payment after refinancing — including property tax, insurance, PMI status, and HOA — use the Mortgage Calculator. For homeowners deciding between paying off the existing mortgage faster versus refinancing, the Mortgage Payoff Calculator shows how extra payments compare to a refi in total interest savings.
If the refinance goal is PMI elimination, verify your current equity position and new LTV using the Affordability Calculator with your current home value and balance. For a full month-by-month breakdown of how your new refinanced loan amortizes — including the equity crossover point — the Mortgage Amortization Calculator generates the complete schedule. VA borrowers refinancing an existing VA loan should use the VA Mortgage Calculator to model the IRRRL funding fee and savings. FHA streamline refinance scenarios are handled by the FHA Mortgage Calculator.
Data Sources & Disclaimer
Rate data referenced in this page is sourced from Freddie Mac’s Primary Mortgage Market Survey and the Federal Reserve’s consumer credit data (2026). Closing cost averages referenced from Freddie Mac’s 2022 refinance cost study. 2026 loan limits from the Federal Housing Finance Agency (FHFA).
This calculator provides estimates for informational purposes only. Results do not constitute a loan offer or commitment. Actual savings, rates, and closing costs vary by lender, credit profile, location, and loan type. Consult a licensed mortgage professional for your specific situation.