Finance

Refinance Savings Calculator

Compare an old mortgage payment with a new one to estimate monthly and total savings.

—

A positive monthly saving means the new payment is lower than the old payment, and the break-even figure shows how many months of that saving repay the closing costs.

Formula

Each payment uses the amortising formula; monthly saving is old minus new, and break-even months are closing costs divided by monthly saving.

How it works

Refinancing can lower the monthly payment while extending the term, which may raise total interest — check both monthly saving and total cost, plus how long you will stay.

Worked example

For example, a $250,000 balance at 7.5% over 25 years gives an old payment of $1,847.48, while 5.5% over 30 years gives a new payment of $1,419.47, so the monthly saving is $428.01 and the $4,000 closing costs break even after 9.3 months.

FAQs

What is break-even?
How many months of savings repay the closing costs.

Can a lower payment cost more overall?
Yes, if the new term is much longer.

Should fees be rolled into the loan?
That raises the balance — compare that option separately.

Are these figures financial advice?
No — they are estimates for planning only, not financial advice. Check with a qualified adviser for decisions involving large sums.

Estimates only, not financial advice. Figures are approximate and do not include all fees, taxes, or changing rates unless stated.

Related calculators

Annuity Payment Calculator

APR Estimate Calculator

Biweekly Mortgage Savings Calculator

Fast results

Instant result, no sign-up.

Free to use

All tools are free.

Formula shown on the page

Each page shows the formula it uses, so you can check the result yourself.

Works on mobile

Built for phone browsers.

Start with a free calculator

Search, pick a calculator, and get an instant result. No sign-up, no download.

Browse categories Read the blog