A refinance can look attractive monthly but fail to recover costs before a move. This scenario separates payment break-even from interest-and-fee savings at a common future date.
All rates, payments, fees, and borrower circumstances below are hypothetical assumptions, not current pricing, an offer, an approval, or an actual client outcome. Figures are rounded for display. No personal client records were used.
The question before the rate
Assume a $400,000 current balance at a hypothetical fixed 7% with 25 years left. The replacement is $400,000 at a hypothetical fixed 6% for the same 25 years, with $6,500 transaction fees paid in cash. No fees are financed and no cash is taken out.
The homeowner is considering a move in a year but might stay five years. The comparison must address that uncertainty. Taxes, insurance, mortgage insurance, tax effects, and returns on cash are excluded.
The payment screen
Standard amortization gives an assumed current principal-and-interest payment of $2,827 and a new payment of $2,577. The difference is $250 per month, rounded. Simple payment break-even is approximately 26.0 months.
That screen excludes how much principal each loan repays. The economic comparison below adds the difference in remaining debt rather than treating every dollar of principal paid as an expense.
The holding-period comparison
| Holding period | Payment relief minus fees | Keep: remaining debt | Refinance: remaining debt | Interest + fee saving vs. keeping |
|---|---|---|---|---|
| 12 months | $-3,501 | $393,881 | $392,880 | $-2,500 |
| 36 months | $2,497 | $380,283 | $377,295 | $5,485 |
| 60 months | $8,495 | $364,649 | $359,728 | $13,415 |
Positive values in the last column favor the refinance under the assumptions; negative values favor keeping the current loan. Calculation: payment difference × months + current-loan remaining balance − replacement balance − upfront fees. Payments and balances are calculated at full precision before rounding.
The practical decision
At a short horizon, paying these fees is difficult to justify using modeled interest savings alone. At longer horizons, the comparison changes. A household with a likely move should not assume a long holding period merely to make the refinance look worthwhile.
Ask for another pricing structure with lower upfront costs, then redo the same horizon comparison. A lender credit may change the rate; financed fees change the balance. Neither alternative is a free substitute.
Watch for a different result when the term changes
This model intentionally keeps the payoff timeline equal. Restarting a 30-year term would change the payment and principal repayment, so these results would no longer apply. The real comparison also needs the actual payoff, insurance, fees, and rate-lock conditions.
There is no universal recommendation to refinance after a certain rate drop. The question is what the actual offer does over the period the borrower expects to keep it.
Questions to carry into your own comparison
Is simple break-even useless?
No. It is a useful cash-flow screen, but it omits the balance difference and other factors.
Can I reuse this result with financed fees?
No. Add the financed costs to the proposed balance and recalculate.
Continue with the relevant guide
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Reviewed October 27, 2026. Educational information; actual costs, eligibility, and program rules vary. Examples do not predict future rates or borrower results.