When to Refinance in 2026: The Break-Even Calculation

A refinance pays for itself once your monthly savings have covered the closing costs. Break-even months = closing costs ÷ monthly savings. Moving a $370,000 balance from 7.875% to 6.75% saves $331.63 a month, so $15,000 of closing costs takes about 45 months, just under 4 years, to earn back.

Where Rates Stand

Freddie Mac's survey put the average 30-year fixed rate at 7.03% on September 24, 2026, up from 6.30% a year earlier. That means a rate-and-term refinance mainly helps people whose current rate is well above today's offers. Freddie Mac says refinancing typically costs 3% to 6% of the loan principal, so small rate cuts rarely pay off quickly.

Worked Example

Compare the break-even month with how long you realistically expect to keep the loan, not the best case. A job move, a larger home or another refinance all end the savings early.

The Cost of Starting a New 30-Year Term

The example above swaps 28 remaining years for a new 30-year loan. Part of the lower payment comes from spreading the balance over two extra years, not from the lower rate.

To see the real gain, compare total remaining payments:

• Keep the old loan: $2,731.45 × 336 = $917,765.68.
• New 30-year loan: $2,399.81 × 360 + $15,000 = $878,932.66. You save $38,833.01.
• New loan over 28 years: $2,453.94 a month. Savings are $277.51 a month and break-even takes 54 months, but the total saved is $78,241.99.

The refinance calculator does this comparison for you. Enter the years left on your current loan, and its total savings figure compares every remaining payment on the old loan with the new loan's payments plus the fees you pay at closing.

Choosing the New Term

The same $370,000 at 6.75%, with $15,000 of closing costs, compared with keeping the 7.875% loan:

"Total saved" is the old loan's remaining payments ($917,765.68) minus the new loan's payments and the $15,000 of closing costs. A shorter term saves the most over the life of the loan but takes longer to break even, so it fits best if you are confident you will stay.

Over the first 5 years, the 30-year option builds equity at about the same pace as the old loan. After 60 payments the new balance is $347,340.13 against $347,785.43 on the old one, while the monthly payment is $331.63 lower.

Paying Costs Up Front vs. Rolling Them In

You can add closing costs to the loan instead of paying cash. On the example, a $385,000 loan at 6.75% costs $2,497.10 a month, saving $234.34 instead of $331.63. There is no cash to earn back, but you owe $15,000 more and pay interest on it.

A "no-cost" refinance is another variation. The CFPB explains that the costs do not go away: the lender covers them in exchange for a higher rate, or adds them to the loan.

Estimate Your Own Break-Even

1. Current payment. Take the principal-and-interest amount from your statement. Leave out escrow, which does not change with the rate.
2. New payment. Use the payment on the Loan Estimate, or calculate it from the balance, the offered rate and the term.
3. Closing costs. Add up the lender and third-party charges on the Loan Estimate. Prepaid interest and escrow deposits are money you would pay anyway, so many people leave them out.
4. Divide. Closing costs ÷ monthly savings = months to break even. Compare that with how long you expect to keep the loan.

Rate-and-Term vs. Cash-Out

The break-even test above is for a rate-and-term refinance, which only changes the rate or term. A cash-out refinance also turns home equity into cash, so it must be judged on what the cash is for and what that new borrowing costs, in addition to any rate change. Using home equity to pay off unsecured debt means your house now secures that debt.

What This Doesn't Cover

This guide leaves out points and their tax treatment, adjustable-rate loans, FHA and VA streamline refinances, mortgage insurance and escrow. Get Loan Estimates from at least two or three lenders and compare page 2, where closing costs are listed. A HUD-approved housing counselor can walk through the offers with you.

Sources: Freddie Mac Primary Mortgage Market Survey; Freddie Mac, Understanding the costs of refinancing; CFPB, No-cost loans and refinancing.