What happens when a refinance reduces the rate but extends the term?
Monthly breathing room can be valuable. But a refinance should be judged on both your payment today and the amount you will pay over the remaining life of the loan.
What we put into the calculator
We assume a $15,000 balance, 36 months remaining at 10% APR, and a new 48-month offer at 7% APR with $150 in fees added to the new principal. The model compares the expected payments if both loans are carried through their stated terms.
The numbers behind the result
| Current monthly payment | $484.01 |
|---|---|
| Refinanced monthly payment | $362.79 |
| Monthly payment change | -$121.22 |
| Current total remaining payments | $17,424 |
| Refinanced total payments | $17,414 |
| Estimated interest left on current loan | $2,424 |
| New loan interest (excluding financed fees) | $2,264 |
What the result is really telling you
The new payment can be lower because you are spreading a balance over more months. That does not necessarily mean the total remaining cost falls. A borrower prioritizing cash flow might still choose the lower payment; the point is to see the trade-off before signing.
Try changing one number
Keep the 7% rate but change the new term from 48 to 36 months. Compare the new payment and the total remaining cost. Then increase the fee to $500.
Open interactive calculator with this example ↗Where the estimate stops
This assumes fixed-rate amortization and that the $150 fee is financed. Real lender offers can include prepayment penalties, varying fee treatment, loan eligibility conditions or different interest calculations.
How this result was produced: The displayed values are evaluated by the same JavaScript formula as the linked MyFastCalcTools calculator. There are no hidden live quotes or market data in this example. The calculator explains its simplifying assumptions.