When refinancing your mortgage makes sense
Refinancing replaces your loan with a new one. It can lower your rate, shorten your term, drop PMI, or pull out equity — but it resets closing costs and the amortization clock, so the timing has to work.
Last reviewed August 2026
The break-even test
Add up the closing costs on the new loan and divide by your monthly payment savings. The result is the number of months you must keep the home for the refinance to pay for itself. If closing costs are $6,000 and you would save $250 a month, break-even is 24 months — fine if you plan to stay five more years, a loss if you sell in a year.
Watch the term reset
Refinancing a loan you are 8 years into back to a fresh 30-year term lowers the payment but can raise total lifetime interest, because you are re-stretching the balance over 30 more years. To capture a rate drop without losing ground, refinance into a term equal to or shorter than your remaining years, or keep making your old higher payment on the new lower-rate loan.
Reasons beyond rate
- Drop PMI: if appreciation has pushed you under 80% LTV, a refinance removes mortgage insurance immediately.
- Cash-out: borrow against equity at first-mortgage rates for a renovation or to consolidate higher-rate debt — at the cost of a bigger balance and payment.
- ARM to fixed: lock in a rate before an adjustable loan's fixed period ends.
- Recast instead: if you just want a lower payment after a lump-sum principal payment and your rate is already good, a recast does that for a small fee with no new loan.
Terms in this guide
- Refinance — Replacing your current mortgage with a new one, usually to get a lower rate, change the term, or convert an ARM to a fixed rate. It resets closing costs and the amortization clock, so the break-even point matters.
- Cash-out refinance — A refinance for more than you currently owe, with the difference paid to you in cash and added to the loan balance. It taps equity at first-mortgage rates but raises your LTV and monthly payment.
- Mortgage recast — Re-amortizing an existing loan after a large lump-sum principal payment, so the monthly payment drops while the rate and payoff date stay the same. It is much cheaper than a refinance but not all loans or servicers allow it.
- Closing costs — The one-time fees paid to complete a home purchase or refinance — lender origination charges, appraisal, title insurance, recording fees, prepaid taxes and insurance, and escrow setup. They typically run 2–5% of the loan amount.
- Loan-to-value ratio (LTV) — The loan amount divided by the property's value, as a percent. An 80% LTV (20% down) is the threshold below which private mortgage insurance is generally not required on a conventional loan.