Credit Card Payoff Calculator
Model a no-new-purchases payoff date, total interest and extra-payment effect with the monthly interest assumption shown beside the result. Sensitive inputs stay in your browser.
36 monthly payments in the no-new-purchases scenario, with about $2,135.16 in modeled interest.
Context matters.
- This planning model applies APR ÷ 12 once per month after interest. Many card issuers calculate interest daily from average daily balance; the cardholder agreement and statement control.
- Promotional APRs, fees, multiple balance categories, payment allocation, late payments and new purchases are not modeled.
Sources & scope
The calculation guide and this source trail show what the result means, where the rule came from and when it was last reviewed. This is source-and-calculation QA, not a claim of medical, legal, tax or other professional review; time-sensitive decisions still belong with the linked authority.
A visible path from input to answer.
Model a no-new-purchases payoff date, total interest and extra-payment effect with the monthly interest assumption shown beside the result. The page keeps the calculation scope and its limits beside the result so the output can be checked, copied or revisited.
- Read the record. The calculator uses Current balance ($), Purchase APR (%), Payment plan, Fixed monthly payment ($) and Estimated principal percentage (%) and 3 additional fields supplied in the form.
- Apply the scope. It applies the United States consumer credit planning — simplified monthly model; exact issuer agreement, daily balance method, fees and future charges control reference and the explicit date, unit and counting conventions shown in the result.
- Expose the checkpoints. Intermediate rows, warnings and timeline events stay visible; the emphasized row identifies the primary checkpoint when one exists.
36 monthly payments in the no-new-purchases scenario, with about $2,135.16 in modeled interest.
- Estimated total interest$2,135.16
- Estimated payoff dateAug 24, 2029
Calculation purpose: Model a no-new-purchases payoff date, total interest and extra-payment effect with the monthly interest assumption shown beside the result. This is a high-sensitivity reference output; the linked authority or qualified professional controls the final decision.
Calendar inputs use plain year-month-day semantics. Leap days, month ends, date-pair order and unsupported dates are checked before the result is shown.
Rule set 1.1.0 · Last reviewed 2026-08-23 · Next review due 2027-02-23. The source panel below contains the linked evidence.
What to know before using the result.
How is credit card payoff interest estimated?
This planning model applies APR divided by 12 once per month. Many issuers calculate interest daily, so the statement and cardholder agreement control.
Does the payoff date include new purchases?
No. The estimate assumes no new charges, fees, missed payments, promotional-rate changes or balance transfers.
What does extra payment change?
An extra monthly amount reduces principal in the model, which can shorten the payoff period and reduce modeled interest.