UAC

Should You Refinance Your Mortgage?

The 1% rule is a myth. The real question is how long until you break even on closing costs β€” and whether you will still own the home by then.

7 min readUpdated March 1, 2026by Samir Messaoudi

The Right Way to Evaluate a Mortgage Refinance

The popular rule that you should refinance any time you can reduce your rate by 1% or more is a simplification that ignores the most important variable: how long you plan to stay in the home. Refinancing has upfront costs β€” typically 2-3% of the loan amount in closing costs β€” that must be recovered through monthly savings before you come out ahead. If your break-even is 4 years and you sell in 3, you lost money refinancing.

The real calculation: monthly payment savings from the new rate, divided into total closing costs, gives you the break-even in months. A refinance that saves $200 per month and costs $6,000 in closing costs breaks even in 30 months. If you stay beyond that, every subsequent month you save $200. If you sell before month 30, refinancing was a net loss.

Rate reduction and break-even are both necessary considerations, but they are not sufficient. Also evaluate: the new loan term (resetting a 30-year clock on year 10 of your current mortgage means more total interest even at a lower rate), whether you want to take cash out, and whether a shorter term (15-year) makes sense given your current financial position.

Calculate your refinance break-even

Enter your current loan and the new offer to see your monthly savings, total closing cost, break-even month, and 5/10-year savings comparison.

Calculate My Refi Savings

How to Evaluate a Refinance Decision

  1. 1

    Calculate your break-even month accurately

    Break-even months = total closing costs divided by monthly payment savings. Get a Loan Estimate from at least two lenders to know actual closing costs (not estimates). Monthly savings = current PI payment minus new PI payment. If break-even is 24 months and you have 10 years left on your mortgage, refinancing is clearly favorable. If break-even is 48 months and you might move in 3 years, the case is weak.

  2. 2

    Consider shortening your term, not just your rate

    If you have meaningful equity and can afford a slightly higher payment, refinancing from a 30-year to a 15-year mortgage often provides a lower rate (15-year rates are typically 0.5-0.75% below 30-year), cuts the interest period in half, and builds equity dramatically faster. Model this scenario alongside a straight rate-reduction refinance β€” the total interest savings are often much larger.

  3. 3

    Calculate total interest paid under each scenario

    Beyond monthly payment, calculate total remaining interest on your current loan versus total interest on the proposed refinance. This shows the true cost of resetting a long loan term versus the savings from a lower rate. Many homeowners discover that refinancing from 8 years into a 30-year at 7% to a new 30-year at 6% saves less total interest than staying with the current loan, despite the lower rate.

  4. 4

    Evaluate no-closing-cost refinances carefully

    No-closing-cost refinances typically roll the closing costs into the loan balance or charge a higher interest rate. These are not free β€” they are structured differently. For a no-closing-cost refi with a higher rate, calculate: what is the rate premium, and does the savings from avoiding upfront costs exceed the cost of the higher rate over your tenure? These sometimes make sense for short expected tenures.

  5. 5

    Compare at least three lenders before deciding

    Mortgage rates vary significantly by lender β€” 0.25-0.5% differences are common for the same loan profile. Get a Loan Estimate (standardized federal disclosure) from at least two or three lenders before choosing. The difference between the best and worst rate from three lenders on a $400,000 loan can easily be $50-$100/month β€” $12,000-$24,000 over 20 years.

When Refinancing Makes Sense vs. When It Does Not

Refinancing makes clear financial sense when: you have a meaningful rate reduction (even 0.5% matters over a long horizon), your break-even is well within your expected remaining tenure, you want to switch from an adjustable-rate to a fixed-rate mortgage for payment certainty, or you want to access home equity at a lower rate than a HELOC.

Refinancing is questionable when: your break-even exceeds your expected remaining tenure, you are deep into your loan term and would reset it, your credit score or home value has declined since original purchase (making your new rate less favorable), or closing costs are unusually high relative to savings. The rule that 'a lower rate always means you should refinance' ignores the very real cost of closing.

Frequently Asked Questions

What closing costs should I expect to pay?

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Typical refinance closing costs are 2-3% of the loan amount: appraisal ($400-$700), title search and insurance ($700-$1,500), origination fees (0-1% of loan), recording fees, prepaid interest, and escrow setup. On a $400,000 loan, expect $8,000-$12,000 in total costs. Get a Loan Estimate form from any lender before committing β€” lenders are required to provide this and it standardizes cost comparison.

Should I pay points to lower my rate?

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Points (discount points) are prepaid interest β€” 1 point equals 1% of the loan amount and typically buys 0.25% lower rate. Whether paying points makes sense depends on your break-even calculation: if the monthly savings from the lower rate recover the cost of points within your expected tenure, points are worth it. If you might move or refinance again in a few years, paying points is usually not justified.

Will refinancing hurt my credit score?

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Refinancing creates a hard inquiry on your credit report and opens a new credit account, both of which may temporarily reduce your score by 5-15 points. Multiple mortgage inquiries within a 45-day window are typically counted as a single inquiry by most scoring models β€” this encourages rate shopping. The impact normalizes within 6-12 months. For most people pursuing a refinance, the financial benefit far outweighs any temporary score impact.

How does a cash-out refinance work?

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A cash-out refinance replaces your existing mortgage with a larger loan and you receive the difference in cash. For example, replacing a $280,000 mortgage with a $350,000 mortgage on a $500,000 home produces $70,000 in cash (minus closing costs). The cash can be used for renovations, debt consolidation, investments, or any purpose. It resets your loan term and typically carries a slightly higher rate than a rate-and-term refinance.

Can I refinance if my home value has declined?

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Refinancing is difficult if you are underwater (owe more than the home is worth) with a conventional loan β€” most lenders require at least 80% LTV for standard refinancing. HARP (the federal refinancing program for underwater mortgages) expired in 2018. If your LTV is above 80% but below 100%, you can typically still refinance but may need to continue paying PMI. VA and FHA Streamline Refinance programs have more flexible LTV requirements for existing government-backed loans.

How many times can I refinance?

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There is no legal limit on the number of times you can refinance a mortgage. The practical constraint is that each refinance has closing costs that must be recovered through monthly savings β€” if you refinance too frequently, you never fully break even on any single refinance. Also, most lenders impose a seasoning requirement: you must have your current mortgage for 6-12 months before they will refinance it.

Calculate your refinance break-even and 10-year savings

Enter your current and proposed loan details for a complete analysis: monthly savings, break-even month, and total interest comparison.

Calculate My Refi Savings