Free calculator

Mortgage refinance break-even calculator

A lower rate can reduce principal and interest, but closing costs and a restarted term can change the real result. Compare both the monthly and longer-term math.

Page updated August 14, 2026 · Educational information

Compare the math

Refinance payment and break-even

Current principal and interest

$2,120.34/month

Proposed principal and interest

$1,932.90/month

Monthly difference
$187.44 lower
Simple break-even
33 months
Full-term cost difference
$50,232.00 lower

This fixed-rate illustration excludes taxes, insurance, mortgage insurance, points, prepaid interest, cash-out amounts, and changes in loan balance. Compare official Loan Estimates—not advertised rates alone.

What “break-even” means here

The simple break-even month divides entered closing costs by monthly principal-and-interest savings. It does not include opportunity cost, taxes, insurance, mortgage insurance, cash-out proceeds, points, or tax effects.

Why the term matters

Restarting with a new 30-year loan can lower the monthly payment while extending the repayment period. Compare the full entered terms as well as the monthly difference. A shorter term may increase the payment even when the rate falls.

How to shop for a less expensive mortgage

  • Request Loan Estimates for the same loan amount, type, and term.
  • Compare rate, APR, points, origination charges, and lender credits.
  • Compare mortgage insurance and the five-year cost shown on the form.
  • Ask whether the rate is locked and for how long.
  • Check for a prepayment penalty on the current or proposed loan.
  • Do not treat lower tax or insurance estimates as lender savings.
Refinancing may lower the total mortgage payment, but it normally does not make the property's tax and insurance obligations disappear.

Did this help answer your question?

Want to explain your own payment change?

Use the free manual checker. No bank login, account, name, or address required.

Check my payment