# Refinance Break-Even Calculator Closing costs against monthly savings, with a same-term comparison so a longer loan cannot flatter the result. --- - **Canonical URL:** https://dothecalculation.com/calculators/refinance-break-even-calculator - **Category:** Real Estate & Property - **Publisher:** Do The Calculation (https://dothecalculation.com) - **Cost:** Free, no account or sign-up required - **Privacy:** Runs entirely in the browser; inputs are never sent to a server - **Methodology:** https://dothecalculation.com/methodology --- ## Refinance Break-Even on the Whole Closing-Cost Package Total closing costs against monthly payment savings, for any loan type — plus the same-term comparison that shows whether the saving is a lower rate or just a longer loan. - Break-even in months on the full cost of refinancing - Same-term comparison, so term extension cannot flatter the result - Lifetime interest change, which can be positive even when the payment falls ## Quick Answer — How Do You Calculate a Refinance Break-Even? Divide total closing costs by the monthly payment saving: \(\text{Break-Even Months} = \frac{\text{Closing Costs}}{\text{Old Payment} - \text{New Payment}}\). If you will still own the home past that date, the refinance pays for itself. That headline number hides a trap, so this calculator also solves the refinance **over your existing remaining term** rather than a fresh 30 years. Comparing a 30-year new loan against a 27-year old one credits the term extension as a saving when it is really a deferral. **Worked example:** a **$310,000** balance at **7.125%** with **324 months** (27 years) remaining pays **$2,157.55** a month. Refinancing to **6.125%** over a fresh **30 years** with **$6,800** of closing costs gives a payment of **$1,883.59** — a saving of **$273.96 a month** and a break-even of **24.8 months**. Lifetime interest falls by **$20,953.09** despite the three extra years. Run the same refinance over the **remaining 324 months** instead and the payment is **$1,958.62** — a saving of **$198.94**, a break-even of **34.2 months**, and a lifetime interest reduction of **$64,455.13**, more than three times larger. Same rate, same costs, very different deal. **This calculator covers the entire closing-cost package on any loan type.** If your question is narrower — whether to buy discount points inside a single loan — the [mortgage points break-even calculator](/calculators/mortgage-points-break-even-calculator) prices that one decision on its own. ## How to Use This Calculator: Refinancing $310,000 From 7.125% Enter the balance as it stands today and the **months remaining**, not the original term. This is the input people get wrong most often, and it matters: a loan three years into a 30-year term has 324 months left, and comparing against 360 quietly builds a three-year extension into the answer. Add the new rate, the new term, and total closing costs. Closing costs on a refinance typically run **2% to 5%** of the loan and cover origination, appraisal, title insurance, recording, and lender fees — **$6,800** on a $310,000 loan is around 2.2%, a reasonable middle. Whether you roll them into the balance or pay cash changes the cash outlay but not the fact that you paid them. The break-even of **24.8 months** answers the only question a refinance really poses: will you still be here? If you expect to sell or refinance again within two years, this deal loses money. If you will hold for a decade, it is straightforwardly good. Break-even is a **holding-period test**, not a quality test. The same-term row is the honesty check. At **$1,958.62** over the original 324 months, the monthly saving drops to **$198.94** but the lifetime interest saving rises to **$64,455.13**. The extra $75 a month the 30-year version appears to save costs roughly $43,500 in additional interest over the life of the loan. Both are legitimate choices — cash flow has value — but they should be made knowingly. To see the same idea from the other direction, the [mortgage recast calculator](/calculators/mortgage-recast-calculator) lowers a payment without touching the rate or the term at all. ## A Second Example: When the Payment Falls and the Cost Rises Small rate improvements on short remaining terms rarely work, and this case shows why. A **$148,000** balance at **5.75%** with **168 months** (14 years) left pays **$1,284.60**. Refinance to **5.25%** over **15 years** with **$4,200** of closing costs rolled into the loan. The new balance is **$152,200** and the payment is **$1,223.50** — a saving of **$61.10 a month**. Break-even is **68.7 months**, nearly six years. And lifetime interest actually **rises by $217.23**, from **$67,813.11** to **$68,030.34**, because the twelve-month term extension and the financed closing costs together outweigh a half-point rate cut. The same refinance over the existing 168 months tells the real story: a payment of **$1,281.21**, a saving of just **$3.40 a month**, and **$4,770.52** of lifetime interest saved. In other words, almost all of the apparent $61 monthly saving came from stretching the loan and none of it from the rate. This is the most common way a refinance quote misleads without anyone lying. The payment genuinely falls; the borrower genuinely pays more. **A half-point cut on a short remaining term, with costs financed, is usually not worth doing** — and the test that catches it is the same-term comparison, not the break-even months. For the broader picture including cash-out and term changes, the [refinance calculator](/calculators/refinance-calculator) covers more scenarios. ## Refinance Break-Even vs Points Break-Even These are two different questions and they are easy to conflate. **This page prices a whole new loan**: you are replacing an existing mortgage, paying a complete set of closing costs, and choosing a new rate and a new term. The comparison is old loan against new loan, and the closing-cost package is the investment being recovered. **The [mortgage points break-even calculator](/calculators/mortgage-points-break-even-calculator) prices one option inside a single loan**: whether to pay discount points at origination to buy the rate down. There is no old loan, no term change, and no title insurance or appraisal in the comparison — just a fee against a rate reduction on the same loan you were taking anyway. They can be used together. If you are refinancing and the lender offers a par rate and a lower rate with points, use this page to decide whether to refinance at all, then that page to decide which rate to take. Applying points arithmetic to a whole refinance understates the cost; applying refinance arithmetic to a points decision overstates it. **Three things break the simple break-even test in both cases.** Rolling costs into the loan means you pay interest on them, which the simple division ignores — the second example above is exactly this. Resetting the term restarts the front-loaded portion of the amortisation schedule where payments are mostly interest. And a rate-and-term refinance says nothing about a cash-out refinance, where the balance increases and the comparison is against the cost of borrowing that money some other way. Build the full picture with the [mortgage calculator](/calculators/mortgage-calculator). ## Limitations This calculator assumes fixed rates on both the existing and the new loan, and that you keep the new loan for the term modelled. If the current loan is adjustable, the comparison depends on assumptions about future resets that no break-even calculation can capture — and refinancing out of an adjustable loan often has value beyond the arithmetic. It also assumes closing costs are known; quotes vary, and the figure to use is the total on the loan estimate, not the origination fee alone. It models principal and interest only. Property taxes, homeowners insurance, and HOA dues are unchanged by a refinance and are excluded, but mortgage insurance is not: refinancing can remove PMI if equity has grown, or add it if the new loan-to-value is high, and either can be worth more than the rate change. Neither is modelled here. The lifetime interest figures assume both loans run to term, which most do not. Nothing accounts for the tax treatment of mortgage interest, which varies with whether you itemise, or for the opportunity cost of cash paid at closing rather than invested. Break-even also treats every month as equal, where in reality money now is worth more than money later. This is a general educational tool, not financial advice — compare full loan estimates and consult a qualified professional before refinancing. ## Related Calculators For the narrower question of whether to buy discount points inside a single loan — no old loan, no term change, no title costs in the comparison — use the [Mortgage Points Break-Even Calculator](/calculators/mortgage-points-break-even-calculator). The [Refinance Calculator](/calculators/refinance-calculator) covers a wider set of scenarios including cash-out and term changes. If your rate is already below market and the goal is simply a lower payment, the [Mortgage Recast Calculator](/calculators/mortgage-recast-calculator) achieves that without giving up the rate or paying closing costs at all. Build the full payment including escrow with the [Mortgage Calculator](/calculators/mortgage-calculator), and see what a term reset costs in the [Mortgage Amortization Schedule](/blog/finance/mortgage-amortization-schedule) guide. ## Frequently asked questions ### How do you calculate a refinance break-even point? Divide total closing costs by the monthly payment saving. On a $310,000 refinance from 7.125% to 6.125% with $6,800 of costs and a $273.96 monthly saving, break-even is 24.8 months. If you will still own the home past that date, the refinance pays for itself. ### What is the difference between refinance break-even and points break-even? Refinance break-even prices a whole new loan — a full closing-cost package against the saving from a new rate and term. Points break-even prices one option inside a single loan: a discount fee against a rate reduction, with no old loan and no term change. Use this page to decide whether to refinance, and the points calculator to decide which rate to take. ### Is a 1% rate reduction enough to refinance? The old one-percent rule of thumb is unreliable because it ignores both closing costs and remaining term. The 1% cut in the first example breaks even in under 25 months and is clearly worth doing; the 0.5% cut in the second example breaks even in 69 months and increases lifetime interest. Run the numbers rather than the rule. ### Should I refinance into a new 30-year term? It depends whether you want cash flow or interest savings, and the two answers differ sharply. In the worked example, a fresh 30-year saves $273.96 a month and $20,953 of interest; the same rate over the existing 324 months saves $198.94 a month and $64,455 of interest. The extra $75 monthly costs roughly $43,500 over the loan. ### Should I roll closing costs into the new loan? It preserves cash but you then pay interest on the costs for the whole term. In the second example, rolling $4,200 into a $148,000 balance is a large part of why lifetime interest rises by $217 despite a lower rate. Rolling costs in makes sense when cash is genuinely scarce, not as a default. ### How much are refinance closing costs? Typically 2% to 5% of the loan amount, covering origination, appraisal, title insurance, recording, and lender fees. Use the total on the loan estimate rather than the origination fee alone — the break-even calculation is only as good as that number. ### Can a refinance lower my payment but cost more overall? Yes, and it is common. In the second example the payment falls by $61.10 a month while lifetime interest rises by $217.23, because the term extension and financed costs outweigh a half-point rate cut. The same-term comparison is what catches this; break-even months alone will not. ### What if I might move before break-even? Then the refinance loses money, and break-even is precisely the test for it. A 25-month break-even is comfortable for a borrower staying a decade and a bad deal for one relocating next year. Estimate your holding period honestly — it is the single input that decides the answer. ## Related concepts - **Same-Term Comparison** — Refinancing over the months you have left rather than a fresh 30 years. The only way to see whether a saving comes from the rate or the term. - **Rate-and-Term vs Cash-Out** — A rate-and-term refinance replaces the balance; a cash-out increases it. This calculator prices the first, and the second needs a different comparison. - **Financed Closing Costs** — Costs added to the balance rather than paid at closing. You still pay them, plus interest, for the whole new term. ## Related guides - [Mortgage Guide: Payment Formula, Costs, and PMI](https://dothecalculation.com/blog/finance/mortgage-guide) — Understand how mortgage payments work, what the DTC mortgage calculator includes, and how taxes, insurance, PMI, and loan term affect cost. - [Mortgage Amortization Schedule: Formula and Guide](https://dothecalculation.com/blog/finance/mortgage-amortization-schedule) — Learn how mortgage payments split between principal and interest, read an amortization schedule, and test loan terms with DTC calculators. ## Related calculators - [Refinance Calculator](https://dothecalculation.com/calculators/refinance-calculator) — Estimate mortgage refinance savings, compare new and old amortization schedules, and find your closing cost break-even month. - [House Hacking Affordability Calculator](https://dothecalculation.com/calculators/house-hacking-affordability-calculator) — Calculate net monthly housing costs and mortgage offset savings when house hacking by renting out spare rooms or an accessory dwelling unit. - [Mortgage Discount Points Break-Even Calculator](https://dothecalculation.com/calculators/mortgage-points-break-even-calculator) — Calculate the break-even timeline and total interest savings from paying upfront mortgage discount points to buy down your interest rate. - [Airbnb ROI Calculator](https://dothecalculation.com/calculators/airbnb-roi-calculator) — Calculate Airbnb rental ROI, including projected monthly cash flow, cap rate, and cash-on-cash return, to evaluate short-term rental profitability. - [Biweekly Mortgage Payment & Payoff Accelerator](https://dothecalculation.com/calculators/biweekly-mortgage-payoff-calculator) — Compare biweekly versus monthly mortgage payment schedules to calculate how much faster you pay off your loan and total interest saved. - [Break-Even Rent Calculator](https://dothecalculation.com/calculators/break-even-rent-calculator) — The rent at which a rental covers itself, solved with vacancy, management, and reserves as percentages. --- _This calculator assumes fixed rates on both loans and that the new loan is held for the term modelled; for an adjustable existing loan the comparison depends on assumptions about future resets that no break-even figure captures. It models principal and interest only, so taxes, insurance, and HOA dues are excluded — but so is mortgage insurance, which a refinance can add or remove and which sometimes outweighs the rate change. Lifetime interest figures assume both loans run to term, and nothing accounts for tax treatment or the opportunity cost of cash paid at closing. This is a general educational tool, not financial advice — compare full loan estimates and consult a qualified professional._ --- _Source: [Do The Calculation](https://dothecalculation.com/calculators/refinance-break-even-calculator). Quote freely with attribution and a link to this page._