Car Calculators

When does refinancing a car loan pay off?

Refinancing replaces your loan with a cheaper one. It can save real money, or barely anything, depending on one choice.

Last reviewed November 3, 2026 · How we calculate · Editorial policy

A worked example

You owe $20,000 with 40 months left at 11%. A credit union offers 7%, with $150 in fees.

Keep current loanRefinance, 40 monthsRefinance, 60 months
Monthly payment$599.52$562.05$396.02
Total you pay, incl. fees$23,981$22,632$23,911
Saving-$1,349$69

Keeping the same 40-month term saves about $1,349, and the $150 in fees is paid back by the lower payment in about 4 months.

Stretching to 60 months drops the payment by over $200, which feels like a big win, but the extra 20 months of interest wipe out almost all the saving: just $69 over the life of the loan.

When refinancing is worth it

Costs to include

Run your own numbers

The refinance calculator compares your current loan with an offer, includes both kinds of fees, and shows the break-even point in months.

Try it yourself

Open the refinance calculator and enter your own loan. It works in 13 currencies and follows each country’s loan rules.

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