Refinance Break-Even: How to Calculate and Use It

Understanding Refinance Costs

Refinancing your mortgage involves paying closing costs, just like when you first bought your home. These costs typically range from 3% to 6% of the loan principal, according to the Federal Reserve and several lenders.

These closing costs include lender fees, such as origination and application fees, as well as appraisal and title costs. You will also pay third-party fees for services like credit checks and recording. The exact amount varies by lender and location, so it pays to shop around for a good-faith estimate or loan estimate.

• Origination fee: charged by the lender for processing the loan
• Application fee: covers the cost of reviewing your application
• Appraisal fee: pays for an independent property value assessment
• Title costs: include title search and title insurance
• Third-party fees: such as credit report, flood certification, and recording fees

Sources: Federal Reserve Board, NerdWallet, AmeriSave, New American Funding

The Break-Even Calculation

The break-even point is the time it takes for your monthly savings from the lower payment to equal the total refinancing costs. To calculate it, you need two numbers: the total closing costs and the monthly savings.

Monthly savings come from the difference between your current monthly payment and the new payment. However, you should use the payment amount that includes principal and interest, not the full payment that may also include escrow for taxes and insurance.

• Total closing costs: all fees and charges you pay at closing
• Monthly savings: the reduction in your principal and interest payment
• Monthly savings = current payment - new payment

Sources: NerdWallet, Chase, AmeriSave

Step-by-Step Break-Even Formula

The basic formula is straightforward: divide the total refinancing costs by the monthly savings. The result is the number of months it will take to break even. All sources—the Federal Reserve, NerdWallet, Chase, AmeriSave, and New American Funding—agree on this formula.

For a more precise estimate that accounts for taxes, you can adjust the monthly savings by your marginal tax rate. The Federal Reserve suggests using the formula: total loan fees divided by (monthly savings × (1 - tax rate)). This reflects the fact that mortgage interest may be tax-deductible, which reduces the after-tax benefit of a lower payment.

• Basic formula: Break-even months = Total closing costs ÷ Monthly savings
• After-tax formula: Break-even months = Total loan fees ÷ (Monthly savings × (1 - tax rate))

1. Gather your current loan balance, interest rate, and remaining term.
2. Obtain a loan estimate from your lender detailing all closing costs.
3. Calculate your new monthly payment (principal and interest) using the new rate and term.
4. Subtract the new payment from your current payment to get monthly savings.
5. Divide total closing costs by monthly savings to get the break-even period in months.
6. If you itemize deductions, multiply monthly savings by (1 - your marginal tax rate) before dividing.

Sources: Federal Reserve Board, NerdWallet, Chase, AmeriSave, New American Funding

Break-Even Calculation Examples

This means it would take just over two years of lower payments to recoup the refinancing costs.

As AmeriSave notes, a larger interest rate reduction generally leads to a faster break-even point.

These examples show how the same level of closing costs can produce different break-even periods depending on the monthly savings. Be sure to use your actual loan estimate and payment figures to get a number that applies to your situation.

Sources: NerdWallet, AmeriSave

Factors That Affect the Break-Even Period

Several key factors influence how quickly you recoup refinancing costs: the total closing costs, the size of the interest rate reduction, your loan balance, the new loan term, and how long you plan to stay in the home. A larger rate drop and lower costs will shorten your break-even period.

Extending the loan term when refinancing can lower your monthly payment, but it may also increase the total interest paid over the life of the loan. The Federal Reserve and New American Funding both point out this trade-off. A cash-out refinance, which increases your loan balance, can push the break-even point further out because your monthly payment will be higher than it would be with a rate-and-term refinance.

One limitation is that the break-even calculation is a present-value rule that ignores the option value of waiting for rates to drop further. As an academic paper notes, this simplified approach may not capture the full decision context.

• Closing costs: higher costs lengthen break-even
• Interest rate reduction: a larger drop leads to faster break-even
• Loan balance: a larger balance can amplify savings but also costs
• Loan term: extending it lowers payments but may increase total interest
• Time in home: if you plan to sell before break-even, refinancing may not be beneficial

Sources: Federal Reserve Board, Journal of Money, Credit and Banking (via PubMed Central), Chase, AmeriSave, New American Funding