2–5%
Typical closing costs as % of loan balance
0.5–1%
Common rate-drop threshold worth pursuing
2–3 yrs
Target break-even for most refinances
620+
Typical minimum credit score, conventional
When refinancing typically makes sense
The classic case for refinancing is a meaningful drop in interest rates — generally 0.5 to 1 percentage point or more below your current rate — combined with a plan to stay in the home well past your break-even point. Other common reasons include switching from an adjustable-rate to a fixed-rate mortgage for payment stability, shortening your loan term (say, from a 30-year to a 15-year) to pay off the home faster and save substantial interest, or a cash-out refinance to access built-up home equity for renovations or debt consolidation.
What closing costs actually include
Refinance closing costs typically run 2-5% of the new loan balance — on a $300,000 loan, that's $6,000 to $15,000. These costs commonly include the loan origination fee, a new appraisal, title insurance and search fees, attorney or settlement fees, and prepaid items like property taxes and homeowners insurance held in escrow. Some lenders advertise a 'no-closing-cost' refinance, which either rolls these costs into the new loan balance or offsets them with a slightly higher interest rate — neither eliminates the cost, it just changes how you pay it.
Calculating your break-even point
Break-even months = Closing costs ÷ Monthly payment savings. If refinancing costs $6,000 in closing fees and reduces your monthly payment by $250, you break even in 24 months. If you're confident you'll stay in the home at least that long, the refinance is generally worth pursuing on payment-savings grounds alone — every month beyond break-even is money saved that wouldn't have existed otherwise.
⚠️ Refinancing resets your amortization clock
A new 30-year refinance on a loan you're already 5 years into extends your total mortgage timeline to 35 years unless you choose a shorter term. Consider refinancing into a 20- or 25-year term, or continuing to pay your original higher payment amount voluntarily after refinancing, to avoid quietly extending how long you're in debt.
Rate-and-term vs. cash-out refinancing
- Rate-and-term refinance: replaces your existing loan with a new one at a different rate and/or term, without changing your loan balance beyond closing costs rolled in
- Cash-out refinance: replaces your existing loan with a larger one, and you receive the difference in cash — commonly used for home renovations, debt consolidation, or major expenses
- Cash-out refinances typically carry a slightly higher rate than a straight rate-and-term refinance and reduce your home equity, so the math needs to account for both the new payment and the equity given up
How refinancing interacts with your taxes
Mortgage interest remains deductible for taxpayers who itemize, whether on your original loan or a refinanced one. Closing costs on a refinance are generally not immediately deductible the way some purchase-related costs are — points paid to lower your rate on a refinance are typically amortized (deducted gradually) over the life of the new loan rather than deducted all at once, unlike points paid on an original home purchase.
Run your own numbers with the Refinance Calculator on this site to see your new monthly payment, monthly savings, break-even point, and total interest saved over the life of the loan. Pair it with the Mortgage Calculator to model the new loan's full PITI breakdown, or the Break-Even Calculator to apply the same payback-period logic to any other financial decision.