Refinancing replaces your existing mortgage with a new one — ideally at a lower rate, shorter term, or both. With mortgage rates fluctuating significantly in recent years, millions of homeowners have opportunities to reduce their monthly payment or total interest cost. But refinancing has closing costs ($3,000–$6,000 typically), so the math must work in your favor.
FHA Loan vs. Conventional Loans (Mortgage 2026) | NerdWallet
Source: NerdWallet
Use our Mortgage Calculator to compare your current loan vs. a refinanced scenario.
When Refinancing Makes Sense
- Rate reduction of 0.75–1%+. The general rule: refinancing is worth it if you can reduce your rate by at least 0.75–1 percentage point. Smaller reductions may still make sense depending on your loan balance and how long you plan to stay.
- You plan to stay in the home long enough to recoup closing costs. If closing costs are $5,000 and you save $200/month, your break-even is 25 months. If you plan to sell in 18 months, refinancing doesn't make sense.
- Your credit score has improved. If your score was 650 when you bought and is now 740+, you may qualify for a significantly better rate.
- You want to switch from ARM to fixed. If you have an adjustable-rate mortgage and rates are rising, locking in a fixed rate provides payment certainty.
- You want to shorten your term. Refinancing from a 30-year to a 15-year mortgage increases your monthly payment but dramatically reduces total interest paid.
The Break-Even Calculation
Break-even point = Closing costs ÷ Monthly savings
Example: $4,500 in closing costs ÷ $180/month savings = 25 months to break even.
If you plan to stay in the home for 5+ years (60 months), this refinance saves you $4,500 net over that period ($180 × 60 months − $4,500 closing costs = $6,300 savings).
Total interest comparison
| Scenario | Loan Balance | Rate | Monthly Payment | Remaining Interest |
|---|---|---|---|---|
| Current loan (25 yr remaining) | $280,000 | 7.5% | $2,073 | $341,900 |
| Refinanced (30 yr) | $280,000 | 6.5% | $1,770 | $357,200 |
| Refinanced (20 yr) | $280,000 | 6.5% | $2,094 | $222,560 |
Note: Refinancing to a new 30-year term lowers your payment but increases total interest (you're extending the loan). Refinancing to a shorter term costs more monthly but saves dramatically on total interest.
Types of Refinancing
Rate-and-term refinance
Changes your interest rate, loan term, or both. No cash is taken out. Most common type of refinance.
Cash-out refinance
Replaces your mortgage with a larger loan and gives you the difference in cash. Example: $200,000 remaining balance, refinance to $250,000, receive $50,000 cash. Rates are typically 0.25–0.5% higher than rate-and-term refinances.
Good for: Home improvements, debt consolidation at a lower rate. Risky for: Discretionary spending (you're putting your home at risk).
Streamline refinance
Available for FHA, VA, and USDA loans. Simplified process with reduced documentation and no appraisal required. Faster and cheaper than a standard refinance.
The Refinancing Process
- Check your credit score and current rate. Know your starting point before shopping.
- Calculate your break-even. Determine how long you need to stay to recoup closing costs.
- Shop at least 3 lenders. Rate differences of 0.25–0.5% between lenders are common. Get Loan Estimates (standardized forms) from each for easy comparison.
- Lock your rate. Once you choose a lender, lock your rate for 30–60 days to protect against rate increases during processing.
- Complete underwriting. Provide documents (pay stubs, tax returns, bank statements). An appraisal is typically required.
- Close. Review the Closing Disclosure (final loan terms) at least 3 business days before closing. Sign documents and pay closing costs.
Timeline: 30–45 days from application to closing.
FAQ
How often can I refinance my mortgage?
There's no legal limit, but most lenders require a "seasoning period" of 6–12 months between refinances. Refinancing too frequently can hurt your credit score and cost more in closing costs than you save.
Can I refinance with bad credit?
FHA streamline refinances don't require a credit check. For conventional refinances, you need 620+ (680+ for the best rates). If your credit has declined since your original mortgage, refinancing may not be possible or beneficial.
Are there no-closing-cost refinances?
Yes — lenders offer "no-closing-cost" refinances where closing costs are rolled into the loan balance or covered by a slightly higher rate. You don't pay upfront, but you pay more over time. Best for people who plan to sell or refinance again within 3–5 years.
Should I refinance to a 15-year mortgage?
A 15-year mortgage has a lower rate (typically 0.5–0.75% less) and you pay dramatically less total interest. The trade-off is a higher monthly payment. If you can afford the higher payment comfortably, a 15-year refinance is an excellent financial move.
Refinancing is worth doing when the math works — specifically when your break-even point is well within your planned time in the home. Shop at least three lenders, compare Loan Estimates carefully, and don't extend your loan term unnecessarily. A well-executed refinance can save tens of thousands over the remaining life of your mortgage.
