When Is the Best Time to Refinance Your Mortgage?
The "refinance when rates drop 1%" rule is a starting point, not an answer. The real decision depends on how long you'll keep the loan, your closing costs, what you're trying to accomplish, and whether you're willing to restart the principal-paydown clock.
Calculate your true break-even
Break-even = total closing costs ÷ monthly savings. If closing costs are $6,000 and you save $300/month, break-even is 20 months. If you plan to stay at least that long, refinancing makes sense.
Five scenarios where refinancing wins
Rates have dropped enough that break-even is under 24 months.
You can shorten your term (30 → 15) at a similar or lower payment.
You need to drop PMI and a refinance is the only way.
You want to convert an ARM to a fixed rate before the adjustment.
You need cash-out at a lower blended rate than alternatives (HELOC, personal loan, credit cards).
Three scenarios where refinancing loses
You're 8+ years into a 30-year and a refinance would reset the clock to 30 years.
Your break-even is longer than you plan to stay in the home.
You'd be replacing a great fixed rate with a worse one just to pull cash out — a HELOC is usually better.
Frequently asked questions
How much does refinancing cost?
Typically 2–4% of the loan amount in closing costs, though no-cost refinances exist (the costs are baked into the rate).
How often can I refinance?
As often as the math justifies. Some programs have seasoning periods (6 months for cash-out, 7 months for FHA Streamline).