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See if refinancing actually pays off.
By Jessica Martinez · Real Estate Finance Editor · Updated June 2026See if refinancing actually pays off.
By Jessica Martinez · Real Estate Finance Editor · Updated June 2026Estimate for planning. Not financial advice.
Refinancing is worth it when the months it takes your monthly savings to repay the closing costs, the break-even point, are fewer than the months you plan to keep the loan. Divide closing costs by monthly savings to get that number in months, then compare it honestly to how long you actually expect to stay in the home or hold the loan.
Compare it against buying, holding or a straight rental analysis using the tools below.
A lower rate means a lower payment, but you pay closing costs to get there. The number that matters most is the break-even point, meaning how many months of savings it takes to recoup those costs. If you will stay in the home well past break-even, refinancing usually wins out. If you might sell first, it may not be worth the paperwork and fees.
Refinancing into a fresh 30-year loan can lower the monthly payment while quietly stretching out your debt and total interest paid over the life of the loan. The 5-year net savings figure helps you judge the near-term benefit of a refinance; compare it against how long you actually plan to keep the property before deciding.
Before you lock a refinance, run the numbers on the full PITI payment tool so you are comparing apples to apples on taxes and insurance, not just the loan payment. If the home is a rental rather than your primary residence, feed the new payment into the rental cash flow calculator to see what the refinance actually does to your monthly return.
The new payment comes from a standard amortization formula run against your current balance, the new rate and the new term. Subtract that new payment from your current payment for monthly savings. Divide closing costs by monthly savings for the break-even month count. Five-year net savings takes sixty months of savings and subtracts the closing costs you paid to get them, so a positive number means the refinance has paid for itself well within a typical hold period.
On a $280,000 balance at 7.5% with a $1,957 current payment, refinancing into a 6% rate over a fresh 30-year term drops the payment to about $1,679, a monthly savings near $278. Against $6,000 in closing costs, that is a break-even around 22 months, and a five-year net savings of roughly $10,696 after the closing costs are paid back.
Compare your break-even months to how long you'll keep the home.
Closing costs divided by monthly savings - the months to recoup the cost.
It can increase total interest even at a lower rate by extending the loan.
Yes - they're used in the break-even and five-year net savings.
No - it's an estimate.