Refinance break-even calculator.
Refinancing is a timing and total-cost decision. Test break-even and total cost impact based on how long you realistically plan to keep the home — not just the rate on the headline.
Educational planning tool only
This calculator does not provide loan quotes, approvals, or commitments to lend. Interest rate inputs are not APRs. Final terms depend on verified borrower details, loan structure, property details, and market conditions.
What this models
- Break even timing based on principal and interest savings versus total refinance cost
- Total cost impact over your time horizon, not just the new payment
- Tradeoffs when you reset the term or roll costs into the new balance
Want to lower interest without closing costs? Use the extra payment calculator.
Current loan
New loan scenario
Compare a hypothetical new loan against your current trajectory. Presets below seed three pricing scenarios — adjust any field to model your own.
Decision outputs
Savings shown here are principal and interest only unless otherwise stated.
Estimate only. Not a loan quote, approval, or commitment to lend. Interest rate inputs are not APRs. Final terms depend on verified borrower details, loan structure, property details, and market conditions.
Planning tool only. This calculator provides estimates to help evaluate scenarios. It is not a loan offer, not a rate quote, and not a commitment to lend.
No APR and no Loan Estimate. Interest rate inputs are not APRs and results do not represent a Loan Estimate. Your official lender Loan Estimate and closing disclosure control final terms and costs.
Assumptions and limits. Results are based on the inputs you provide and standard amortization math. They do not include all settlement charges, escrows, prepaid items, taxes, insurance, HOA dues, mortgage insurance changes, credit score impacts, or underwriting conditions.
No approval or qualification. This calculator does not determine approval, eligibility, ability to repay, or affordability.
The Mortgage Expert · NMLS 2412313 · Equal Housing Opportunity.
How to read the results
Monthly savings
Principal and interest only. It does not include taxes, insurance, HOA, flood insurance, escrow changes, prepaid items, or mortgage insurance changes.
If savings mainly come from resetting the term or rolling costs into balance, treat it as a cash-flow change, not automatic long term savings.
Break even timing
When monthly principal and interest savings have covered the refinance cost used in the math.
If you might sell, refinance again, or pay off early before break even, the math usually does not work.
Total cost impact over your time horizon
The main decision metric. It estimates total cost over the years you plan to keep the home, including the remaining balance at the end of that period.
A refinance can break even and still cost more long term if you extend the term or finance costs into the balance.
More calculators
Get my mortgage strategy
If you want a second set of eyes, I will sanity-check your assumptions, confirm break-even timing, and help you compare refinance options without rate pressure.
- Confirm whether the math works for your realistic time horizon
- Spot traps like term resets, rolled-in costs, and misleading savings
- Compare structure tradeoffs for cash flow and total cost
Planning only. No quotes. No commitments. Interest rate inputs are not APRs.
Refinance break-even calculator questions
How long does it usually take to break even on a refinance
Break even depends on total refinance cost and how much your monthly principal and interest changes. A refinance usually only makes sense if you plan to keep the home long enough for savings to recover the costs used in the math. This calculator models that timing so you can test different scenarios.
Is breaking even always enough to justify refinancing
No. Break even is only one part of the decision. You also need to consider total cost over time, whether the loan term resets, whether costs are financed, and how long you realistically expect to keep the home. A refinance can break even and still cost more long term.
Does a lower rate always mean a better refinance
Not necessarily. Lower rates can come with higher costs, longer terms, or added risk. What matters is how the new loan performs over your time horizon, not how the rate compares to a headline.
Should I roll refinance costs into the loan or pay them upfront
Rolling costs into the loan can preserve cash but increases your balance and long term interest. Paying costs upfront can improve break even timing but requires more cash today. This calculator lets you test both approaches to compare tradeoffs.
What costs should be included when calculating refinance break even
Break even calculations typically include lender fees, title and settlement costs, appraisal fees, and other transaction-related expenses. Escrows and prepaids are usually excluded because they are not true refinance costs, but they can still affect cash to close.
Why does the calculator ask how long I plan to keep the home
Because refinance math changes completely based on time. A refinance that looks good over ten years may not make sense if you sell or refinance again in three. Modeling your realistic time horizon leads to better decisions than guessing.
Is the interest rate used in this calculator an APR
No. The interest rate inputs in this calculator are planning assumptions only and are not APR. Final APR depends on loan structure, fees, and verified borrower details.
Is this a Loan Estimate or a refinance quote
No. This is a planning tool and it does not provide a loan quote, a Loan Estimate, or a commitment to lend. Your official lender Loan Estimate and closing disclosure control final terms and costs.