Estimate how many months a fixed payment may take to clear a balance and how much interest may be paid.
For interest-bearing debt, the payoff period uses the standard reducing-balance formula. Interest is added monthly and the payment reduces the remaining balance.
Test whether a monthly payment is enough to reduce a credit-card or other fixed-rate balance and estimate a realistic payoff timeline.
A 15,000 balance at 18% annual interest with a 500 monthly payment takes roughly three years to repay, depending on the provider’s exact interest method.
If the payment does not exceed the first month’s interest, the balance cannot fall under this fixed-rate model.
No. It assumes no new charges, late fees or rate changes.
