Financial Calculators
Refinance Calculator - Break-Even & Savings
Find out whether refinancing your mortgage makes sense. Enter your current and new loan details to see monthly savings, break-even month, and net savings over your planned hold period.
Current Loan
New Loan
| Current Loan | New Loan | |
|---|---|---|
| Monthly Payment | $2,120.34 | $1,847.15 |
| Total Interest (full term) | $336,102.00 | $364,974.00 |
| Lifetime Interest Savings | -$28,872.00 | |
Monthly payment comparison
| Item | Value |
|---|---|
| Current payment | $2,120.00 |
| New payment | $1,847.00 |
How to use the refinance calculator
Enter your remaining loan balance, current interest rate, and remaining term. Then enter the proposed new rate, new term, and all closing costs, including flat fees, a percentage of the balance, and any discount points. Finally, enter how many months you plan to keep the loan. The calculator shows your monthly savings, break-even month, and net savings over your hold period instantly.
What is the break-even point?
The break-even point is the number of months it takes for your cumulative monthly savings to equal the total closing costs. Until you reach that month, you are still "in the hole" on the refinance. After that month, every payment is pure savings.
Break-even months = Total closing costs ÷ Monthly savings
For example, if your closing costs total $6,000 and you save $150 per month, you break even after 40 months (about 3 years and 4 months).
Refinancing to a longer vs. shorter term
Refinancing to a longer term (e.g., resetting to 30 years) lowers the monthly payment but extends the time you pay interest, often increasing lifetime interest paid significantly. Refinancing to a shorter term increases the monthly payment but reduces total interest and builds equity faster. This calculator surfaces both monthly savings and lifetime interest comparison so you can weigh the full picture.
When closing costs eat up the savings
If you plan to sell or refinance again before the break-even point, the upfront closing costs will exceed your savings, making the refinance a net loss. As a rule of thumb, refinancing only makes strong financial sense when you will keep the loan for at least 1.5× the break-even period.
Cash-out refinancing
A cash-out refinance replaces your existing mortgage with a larger loan and gives you the difference as cash, useful for home improvements or debt consolidation. Because you’re borrowing more, the break-even period is different from a rate-and-term refi; factor in the additional interest on the extra principal over the life of the loan. Cash-out refis typically carry a slightly higher interest rate and require at least 20% remaining equity after the cash-out.
No-closing-cost refinance
A no-closing-cost refinance eliminates upfront fees by either rolling the costs into the loan balance or accepting a higher interest rate (lender credits). The break-even calculation becomes simpler — there is no upfront cost to recover — but the higher rate or larger balance means you pay more over the life of the loan. This option is best when you plan to sell or refinance again within a few years.