Answer: Enter your values and the Refinance Break-Even Calculator returns the exact result instantly — formula, worked example, and a plain-English explanation are included below the tool.
Find out how many months until a refinance pays for itself
| Cost Item | Typical Amount |
|---|---|
| Loan origination fee | 0.5% – 1% of loan amount |
| Appraisal | $300 – $600 |
| Title search + title insurance | $700 – $1,000 |
| Credit report | $25 – $50 |
| Recording fees | $25 – $250 |
| Discount points (optional) | 1% of loan per point |
| Closing Costs | $100/mo saved | $200/mo saved | $300/mo saved | $400/mo saved |
|---|---|---|---|---|
| $3,000 | 30 months | 15 months | 10 months | 8 months |
| $6,000 | 60 months | 30 months | 20 months | 15 months |
| $9,000 | 90 months | 45 months | 30 months | 23 months |
| Rate | Monthly payment (P&I) | Total interest over 25 years |
|---|---|---|
| 8.0% | $2,315 | $394,635 |
| 7.5% | $2,217 | $365,092 |
| 7.0% | $2,120 | $336,101 |
| 6.5% | $2,026 | $307,686 |
| 6.0% | $1,933 | $279,871 |
| 5.5% | $1,842 | $252,679 |
On a $300,000 balance with 25 years left, each half-point of rate is worth roughly $92 to $98 a month. A full point is worth about $190. Payments computed with the standard amortization formula at the listed rate.
| New rate | New payment | Monthly savings | Break-even at $6,000 in costs |
|---|---|---|---|
| 7.00% | $2,120 | $97 | 62 months |
| 6.75% | $2,073 | $144 | 42 months |
| 6.50% | $2,026 | $191 | 32 months |
| 6.25% | $1,979 | $238 | 26 months |
| 6.00% | $1,933 | $284 | 22 months |
| 5.75% | $1,887 | $330 | 19 months |
Computed for the default scenario: $300,000 owed at 7.5% with 25 years left, refinanced into a new loan that keeps the same 25-year term, with $6,000 in closing costs. Holding the term constant matters — it isolates what the rate cut alone is worth. Every eighth of a point adds up: the step from 6.50% to 6.25% cuts five months off the break-even by itself.
Refinancing swaps your current mortgage for a new one, usually to grab a lower rate. The catch is that it isn't free. Between origination fees, the appraisal, and title work, closing costs typically run 2% to 6% of the loan. This calculator tells you how long it takes for your monthly savings to pay back those costs, which is the single most useful number when you're deciding whether a refi makes sense.
Both payments come from the standard amortization formula: M = P × (r/12) ÷ (1 − (1 + r/12)−n), where P is the loan balance, r is the annual rate as a decimal, and n is the number of monthly payments. From there, break-even months = closing costs ÷ (current payment − new payment), rounded up to the next whole month.
Enter your current balance, rate, and the years you have left, then the rate and term you've been quoted along with estimated closing costs. Everything updates as you type. Watch two numbers: the break-even point, and the lifetime savings figure at the bottom of the results. A refi can look great month to month and still cost you money over the full term if it stretches out your payoff date.
Say you owe $300,000 at 7.5% with 25 years left. That's a payment of $2,217 a month. Refinance the same $300,000 into a 30-year loan at 6.25% and the payment drops to $1,847, saving you $370 a month. With $6,000 in closing costs, you break even in 17 months ($6,000 ÷ $370 = 16.2, rounded up to 17).
Here's the twist. Interest remaining on the old loan is $365,092, while the new loan racks up $364,975 over its full 30 years. Nearly identical, because you added five years of payments. After closing costs, this particular refi actually costs $5,883 over its lifetime. Great for monthly cash flow, not for total cost. Choosing a 25-year or shorter term instead flips that math in your favor.
Discount points are prepaid interest: one point costs 1% of the loan and typically trims the rate by about a quarter point. On a $300,000 refi, taking the rate from 6.50% to 6.25% costs $3,000 up front and saves roughly $47 a month — about a 63-month payback on the points alone, stacked on top of the base closing costs. Points only win if you keep the loan well past that payback, which is the same break-even logic one layer down. If you might sell or refinance again within five years, take the higher rate and keep the cash.
Three situations sink the math. First, if you won't stay past the break-even month, the savings never arrive — selling the home early is the most common way refis go wrong. Second, if you're deep into the current loan, each payment is mostly principal already, so there's little interest left for a new rate to cut, while the closing costs arrive in full. Third, if your credit has slipped since you bought, the quoted rate may not beat the old one at all; the calculator shows "No break-even" whenever the new payment comes in higher. One workaround for short horizons: a no-closing-cost refinance, where the lender charges roughly 0.25 to 0.5 points more in rate in exchange for skipping the upfront fees. You're still paying the costs, just as rate instead of cash — which can be the right trade if you'll move within a few years.
As a rule of thumb, refinancing makes sense when you can cut your rate by at least 0.75 to 1 percentage point and you'll stay in the home past the break-even point. If you break even in 17 months and plan to stay five years, you come out ahead. Also weigh the term reset, since a fresh 30-year clock adds interest.
Divide your total closing costs by your monthly payment savings. If refinancing costs $6,000 and drops your payment by $370 a month, you break even in about 17 months ($6,000 ÷ $370 = 16.2, rounded up). After that point, every month of savings is money you actually keep.
Most refinances run 2% to 6% of the loan amount. Typical line items include loan origination (0.5% to 1% of the loan), an appraisal ($300 to $600), title search and insurance ($700 to $1,000), a credit report ($25 to $50), and recording fees ($25 to $250). Discount points are optional and cost 1% of the loan each.
Yes, unless you pick a shorter term. Swapping 25 remaining years for a new 30-year loan lowers the payment but stretches interest over five extra years, which can wipe out lifetime savings. If lifetime cost matters more than monthly cash flow, refinance into a 25, 20, or 15-year term instead.
It can be, if you'll stay long enough. At $100 a month, $6,000 in closing costs takes 60 months, five full years, to recover. Sell or refinance again before then and you lose money on the deal. The bigger the monthly savings relative to costs, the safer the refi.
Mostly no. Points paid on a refinance are generally deducted gradually over the life of the new loan rather than all in year one, and the other closing costs — appraisal, title, origination — aren't deductible for a typical refinance at all. Mortgage interest on the new loan is deductible if you itemize, subject to the usual limits. Confirm your specifics with a tax pro before filing.
A refi where the lender covers the upfront costs in exchange for a higher rate, typically 0.25 to 0.5 percentage points more, or rolls the costs into the loan balance. Nothing is waived — the costs are repackaged as rate or principal instead of cash at closing, so your monthly savings shrink and the break-even stretches out. It usually wins when you'll sell or refinance again within a couple of years, and loses to paying costs upfront if you're keeping the loan long-term.
Run the break-even against your realistic move date, not your hopeful one. Closing costs don't transfer with the loan or get repaid at sale — if you sell two months after a 30-month break-even, the refi lost you money. Expecting to move within two years usually kills a rate-and-term refi outright.