Should You Refinance Your Mortgage in 2026?
Refinancing can lower your monthly payment, shorten your loan term, or convert an adjustable rate to a fixed one—but only when the numbers work in your favor. Our refinance savings calculator compares your current loan with a proposed new loan and shows your new monthly payment, monthly savings, break-even point, and total lifetime savings after closing costs. Use it before you pay any application fee so you know exactly how long you must stay to come out ahead.
Mortgage Refinance Savings Calculator
Enter your current loan details and a target new rate to compare.
Your Refinance Savings
| Metric | Value |
|---|---|
| Current Monthly Payment | |
| New Monthly Payment | |
| Monthly Savings | |
| Break-Even Point | |
| Total Savings (Life of Loan) |
When Refinancing Makes Sense
The traditional rule of thumb says refinance when you can drop your rate by at least 1%, but in today's market even a 0.5% to 0.75% reduction can pay off if you stay long enough. The deciding factor is the break-even point: your closing costs divided by your monthly savings. If that is 20 months and you plan to stay five years, you keep roughly 40 months of savings. If you might move in 12 months, the refinance loses money.
How the Refinance Calculator Works
The calculator computes your current principal-and-interest payment and your new payment using the standard amortization formula, then subtracts them to get monthly savings. It divides your closing costs by that monthly savings to find the break-even month, and multiplies monthly savings by the remaining term (minus closing costs) for total lifetime savings.
The Payment Formula
PI = Balance × r ÷ (1 − (1 + r)−n)
Where r = monthly rate (annual ÷ 12) and n = remaining payments. Monthly savings = current PI − new PI.
Example: a $300,000 balance at 7.5% with 28 years left refinanced to 6.5% cuts the payment by roughly $190–$210 per month. With $5,000 in closing costs, the break-even is about 24–26 months, and total savings over the remaining term can exceed $40,000.
Watch Out for These Refinance Traps
Resetting the term
Moving from a 28-year remaining balance into a fresh 30-year loan lowers the payment but extends your payoff by two years and adds interest. Choose a shorter term to stay on track.
Ignoring closing costs
No-closing-cost refinances bake the fee into a higher rate. Compare both options with the calculator before deciding.
Chasing a tiny rate drop
A 0.125% reduction rarely beats the break-even clock unless you stay a very long time. Model it before paying fees.
Refinancing to a Shorter Term
Many homeowners refinance from 30-year to 15- or 20-year loans. The rate is usually lower and you build equity faster, but the monthly payment often rises even when the rate falls. If your goal is paying the loan off sooner, the calculator's total-savings figure shows the long-run gain; pair it with our extra payment calculator to see how additional principal payments achieve the same result without a new loan.
Government Streamline Options
If you have an FHA, VA, or USDA loan, streamline programs (FHA Streamline, VA IRRRL) can skip the appraisal and much of the paperwork, cutting both cost and time. They are ideal when rates dip modestly and you want a fast, low-documentation refi. Check program specifics in your state guide.
Rate-and-Term vs Cash-Out Refinance
There are two broad refinance types. A rate-and-term refinance simply changes your rate or term and keeps the loan balance roughly the same—ideal for lowering the payment or shortening the loan. A cash-out refinance increases the balance and puts the difference in your pocket for renovations, debt payoff, or investments. Cash-out loans carry slightly higher rates and reset more equity, so the calculator's savings only apply to the rate-and-term case; for cash-out, subtract the extra borrowed amount from any "savings" before deciding. Be honest about the purpose, because pulling equity out to fund spending can undo years of progress.
How Closing Costs Are Built
Closing costs on a refinance typically run 2%–5% of the new loan balance and include lender origination fees, appraisal, title insurance, recording fees, and prepaid interest. On a $300,000 loan that is $6,000–$15,000. Some lenders advertise "no-closing-cost" refinances, but they recover the fee by charging a higher rate—often a worse deal if you stay long. Enter your real quote into the calculator so the break-even point is accurate. Shopping three lenders for the same loan can cut points and fees enough to move your break-even months earlier.
Credit Score and Your New Rate
Your credit score at refinance time may differ from when you bought. A higher score qualifies you for a better rate, widening your savings; a lower one may make waiting worthwhile. Most borrowers see the best refinance terms at 740+, with meaningful penalties below 680. If your score has dropped, spend a few months paying down revolving balances and disputing errors before applying—the improved rate can outweigh the delay. The calculator isolates the rate effect: try your current score's likely rate versus a projected better one to see the dollar difference.
When NOT to Refinance
Refinancing is not always the right move. Skip it if you plan to move before the break-even point, since you would not recover the closing costs. Skip it if a small rate drop (under about 0.25%) cannot clear the break-even clock. Skip it if you are far into a 30-year loan and would reset the term, unless you choose a shorter term or keep paying extra. And skip a cash-out refinance when the money would fund consumption rather than a rate improvement or a durable investment. The calculator makes these trade-offs explicit so the decision is mathematical, not emotional.
Refinancing an Adjustable-Rate Mortgage (ARM) into Fixed
Borrowers with an ARM face payment uncertainty when the rate adjusts. Converting to a fixed-rate loan locks your payment regardless of market moves—valuable if you expect to stay long or think rates will rise. Even when the fixed rate is a bit higher than today's ARM payment, the stability can be worth more than the savings, especially near an adjustment date. Model both the current ARM payment and a fixed alternative in the calculator; the right choice depends on your tolerance for risk and how long you will keep the home.
A Worked Example: $300,000 at 7.5% → 6.5%
To make the math concrete, take a $300,000 balance with 28 years remaining at 7.5%. The current principal-and-interest payment is about $2,170. Refinancing to 6.5% on the same remaining term drops the payment to about $1,960—a monthly saving near $210. With $5,000 in closing costs, the break-even point is roughly 24 months, and total savings over the remaining 28 years exceed $60,000 after costs. The table below summarizes the comparison.
| Scenario | Rate | Monthly P&I | Remaining Interest |
|---|---|---|---|
| Current loan | 7.5% | ~$2,170 | ~$397,000 |
| Refinanced | 6.5% | ~$1,960 | ~$358,000 |
| Difference | −1.0% | ~$210/mo | ~$39,000 less |
Figures are illustrative and exclude taxes and insurance, which stay similar across both loans. Enter your own balance, rate, and costs into the calculator for your exact break-even and lifetime savings.
Timing Your Refinance Around Rate Locks
Mortgage rates move daily, and a lock protects the quoted rate for 30–60 days through closing. If you apply and rates fall further, some lenders allow a one-time "float-down" to the lower rate for a fee; if rates rise, your lock shields you. Because the break-even math depends on the new rate, lock only when you are ready to close so the comparison in the calculator reflects the rate you will actually get. Watching the trend for a few weeks before applying is reasonable, but trying to time the absolute bottom usually backfires—the savings from acting a quarter-point early almost always beat waiting for a bottom that may never come.
Tax Implications to Keep in Mind
Mortgage interest remains deductible on a refinanced loan, but the deduction shrinks as your balance falls, and the 2018 tax law capped the deduction at interest on up to $750,000 of loan principal ($375,000 if married filing separately) for new loans. Discount points paid to lower your rate are generally deductible over the life of the loan, while closing costs themselves are not. If you take cash out, the interest on the extra borrowed amount is only deductible when the funds are used for substantial home improvements. Run the after-tax numbers with your preparer so the calculator's pre-tax savings reflect your real benefit.
Comparing Lender Offers Side by Side
Always collect at least three Loan Estimates and compare the interest rate, APR, and total closing costs on the same loan size and term. Small differences in points or fees change your break-even point and lifetime savings more than they appear at first glance. The calculator isolates the rate effect, but only the Loan Estimate shows the true all-in cost, so use both together before you commit to a lender.
What If Rates Fall Again After You Refinance?
If you refinance and rates drop further, you can refinance again—but each transaction costs money, so avoid chasing every small move. A practical rule is to wait until the rate drop is large enough to clear a new break-even within your planned stay. Because you have already improved your position once, a second refinance only makes sense when the math clearly beats sitting pat. The calculator works the same way for the second move as the first.
Frequently Asked Questions
Is a 0.5% rate drop worth refinancing?
Often yes if you stay past the break-even point. On a large balance, half a point can save meaningful interest; run your exact numbers above.
What are typical refinance closing costs?
Usually 2%–5% of the new loan balance—often $3,000–$6,000. Enter your real quote so the break-even is accurate.
Should I take cash out when I refinance?
A cash-out refi can fund renovations or debt payoff, but it raises the loan balance and resets equity. Keep the new loan purpose in mind before borrowing more.
How long does a refinance take?
Typically 30–45 days from application to closing, though streamline programs can be faster. Plan around that timeline if your rate lock is expiring.
Related Calculators
Before refinancing, confirm your position with the home affordability calculator, model extra payments to build equity, and review your DTI ratio. To compare locations or plan a move, use the state comparison calculator.