The whole story, as text
Does a lower monthly payment mean refinancing saves money?
A refinance offer: 10% instead of 18%. You owe $17,289 at 18%, $508 a month, 48 payments left. The offer: 10% over 60 months, no fee. The payment drops by $141. How much does the refinance save in total?
The answer
$2,337. Interest from today: $7,089 if you keep the loan, $4,751 if you refinance. You also pay for 12 more months.
Why
A refinance does two things: it changes the rate, and it restarts the clock. The rate drop saves money. The extra year costs money. Here the rate drop wins, but by less than it could. Take the rate, keep your old payment: $508 a month at 10%: interest $3,129, done in 41 months instead of 48.
One move
Take the rate. Keep the payment. 10%, new 60-month term: $367 a month, $4,751 interest from today. 10%, keep paying what you pay now: $508 a month, $3,129 interest from today. The lower payment was costing you $1,622 of the rate's saving. At 15% instead of 10%, the same 60-month refinance would cost more than keeping your loan, even though the payment still drops.
The refinancing tool shows all three columns side by side, with the break-even month and the cost of any fee.
Yours
Does refinancing help? runs these numbers for any loan. Nothing you enter leaves your browser.
The longer read
The offer looks good: a lower rate and a payment $140 less than you pay now. But a lower payment is not the same as a cheaper loan. Most refinance offers do two things at once: they change the rate, and they start a new term. The first one saves money. The second one usually costs money. Whether you come out ahead depends on which effect is bigger, and on how long you keep the loan.
The short answer
Compare the two paths on what each costs from today forward, not on the monthly payment. Whatever you have already paid is gone on both paths, so only future money counts. Then ask a second question: what happens if you take the new rate but keep paying what you pay now?
A worked example
Say you owe $17,289.14 at 18%, paying $507.87 a month, with 48 payments left. A lender offers 10% over 60 months with no fee.
| Line | Keep the current loan | Refinance | Refinance, keep your payment |
|---|---|---|---|
| Monthly payment | $507.87 | $367.34 | $507.87 |
| Paid off in | 48 months | 60 months | 41 months |
| Cost from today | $7,088.51 | $4,751.45 | $3,129.19 |
The refinance does save money here, about $2,337, because the rate drop is large. But notice the third column. Taking the 10% rate and keeping the old payment saves nearly $4,000 and clears the loan seven months sooner than today’s schedule. The lower payment was costing you $1,622 of the rate’s saving.
Change one number and the picture flips. At a new rate of 15% instead of 10%, the same 60-month refinance would cost more than keeping the loan, even though the payment still drops. The extra year of interest eats the small rate saving.
What makes the difference
- How far the rate falls. Big drop, likely saving. Small drop, the longer term usually wins.
- How many months are added. A refinance that resets a 4-year loan to 5 years adds a year of interest.
- Fees and penalties. An origination fee on the new loan, or a prepayment penalty on the old one, counts against the refinance from day one.
- When you will actually pay it off. If you expect to clear the loan early, the break-even month matters more than the full-term total.
Questions to ask your lender
- What is the total of all payments on the new loan, and what would it be if I kept my current payment amount?
- Is there an origination fee, and is it deducted from what I receive or added to the balance?
- Does my current loan charge a penalty for paying it off early?
- Can I set the new loan’s payment higher than the minimum without a fee?
See it with your own numbers
Enter what you owe, your rate and your payment, then the offer, in Does refinancing help?. It shows all three paths side by side, the break-even month, and how far the payoff date moves. Drop your statement or payoff letter on the page to fill the numbers in.
Related: Refinancing break-even. Glossary: break-even, refinancing.
Educational tool, not advice. Your lender’s disclosures are the authoritative figures.
Written and reviewed by Riverbend Crossroads Digital LLC, Sunday, September 6, 2026. Figures from the Show Real Cost engine, computed exactly and shown to the cent. Educational, not advice; your lender's disclosures are the authoritative figures. How we calculate · Corrections.