Phase 4 · General Utility
Credit Card Payoff Calculator
The minimum payment is designed to keep you paying. See how long your balance really takes to clear — and how many years and dollars a fixed payment saves over the minimum trap.
How long will it take to pay off my credit card?
It depends far more on whether your payment is fixed than on its size. A fixed payment retires a constant amount of principal each month. A percentage-based minimum shrinks as the balance falls, so the principal portion keeps collapsing — which is precisely what keeps the balance alive for decades.
- Each month: interest = balance × APR ÷ 12, then balance += interest − payment.
- Worked example (defaults on this page): $6,000 at 22% APR cleared with a fixed $250/month takes 32 months and $1,979 of interest.
- The same balance on a 2% minimum (floored at $35) takes 876 months — over 70 years — and $49,787 of interest. Fixing the payment saves $47,808.
- The trap is structural, not arithmetic: at 22% APR the first month’s interest is $110 while a 2% minimum is $120, so barely $10 of a $120 payment touches the debt.
Balance over time: fixed vs minimum
Under the hood
The math, fully exposed
We simulate both paths month by month — a fixed payment versus a shrinking minimum:
Each month: interest = balance × APR ÷ 12; balance += interest − payment
Fixed path: payment is constant until the balance hits zero
Minimum path: payment = max($35, balance × minimum %), and it shrinks
Interest saved = minimum-path interest − fixed-path interest
- The minimum shrinks with the balance: that's the trap — your payment keeps falling, so principal barely moves and the term drags on for decades.
- A fixed payment accelerates: as interest falls each month, more of the same dollar hits principal — the payoff speeds up on its own.
- If payment ≤ first month's interest: the balance never falls. Your payment must beat the monthly interest to make any progress at all.
Your directives
What to do next, based on your numbers
Adjust the sliders to generate tailored recommendations.
Answers
Frequently asked questions
Why do minimum payments keep me in debt so long?
Because the minimum is usually a small percentage of the balance (often 2%) that shrinks as the balance shrinks, while interest at 20%+ keeps piling on. Early on, most of your minimum payment just covers interest, barely touching the principal. The result is a payoff that can stretch 15–25 years and cost more in interest than the original purchase — the single most expensive way to carry debt.
How much faster does a fixed payment clear the balance?
Dramatically. Paying a fixed dollar amount — instead of a shrinking percentage — means every month chips harder at the principal as interest falls. A balance that takes 20+ years on minimums can clear in a few years on a steady fixed payment, often saving thousands in interest. The key is to lock the payment amount and never let it drift down with the balance.
What APR am I really paying?
Credit card APRs commonly run 20–29%, far above almost any other consumer debt. At those rates the math compounds against you fast: a 24% APR adds roughly 2% to the balance every month before you pay a cent of principal. That is why credit card debt is almost always the first thing to attack — no investment reliably beats a guaranteed 24% return from paying it off.
Should I consider a balance transfer or consolidation?
Often yes. A 0% balance-transfer card or a lower-rate consolidation loan can redirect your whole payment to principal during the promo period, accelerating payoff sharply — just mind transfer fees and the rate after the promo ends. The discipline that matters most is not adding new charges while you pay it down. This is an educational model, not financial advice.