Financial · Live
Escape the trap.
Pay it off faster.
Find out how long it will take to pay off your credit card. Compare the minimum payment against a fixed monthly plan and see exactly how much interest you can save by paying even a little more.
Inputs
Your card
Minimum payment
How your issuer computes the bare-minimum payment.
Your plan: fixed payment
Lock in the same dollar amount every month — the fastest way out.
- Month-1 minimum
- $100.00
- Fixed payment
- $250.00
- Monthly interest
- $95.79
Fixed-payment payoff
22.99% APR
Paid off by Jul 2028 · $1,365.57 in interest
Interest
21%
The minimum payment isn't enough to cover the monthly interest.
Even a small fixed payment above the monthly interest charge ($95.79) will start to chip away at the principal.
The debt trap
Balance over time
Interest piling up
Cumulative interest paid
Schedule
Fixed-plan month-by-month
| Month | Payment | Principal | Balance |
|---|---|---|---|
| 1 | $250.00 | $154.21 | $4,845.79 |
| 2 | $250.00 | $157.16 | $4,688.63 |
| 3 | $250.00 | $160.17 | $4,528.46 |
| 4 | $250.00 | $163.24 | $4,365.21 |
| 5 | $250.00 | $166.37 | $4,198.84 |
| 6 | $250.00 | $169.56 | $4,029.29 |
| 7 | $250.00 | $172.81 | $3,856.48 |
| 8 | $250.00 | $176.12 | $3,680.36 |
| 9 | $250.00 | $179.49 | $3,500.87 |
| 10 | $250.00 | $182.93 | $3,317.94 |
| 11 | $250.00 | $186.43 | $3,131.51 |
| 12 | $250.00 | $190.01 | $2,941.51 |
| 13 | $250.00 | $193.65 | $2,747.86 |
| 14 | $250.00 | $197.36 | $2,550.50 |
| 15 | $250.00 | $201.14 | $2,349.37 |
| 16 | $250.00 | $204.99 | $2,144.38 |
| 17 | $250.00 | $208.92 | $1,935.46 |
| 18 | $250.00 | $212.92 | $1,722.54 |
| 19 | $250.00 | $217.00 | $1,505.54 |
| 20 | $250.00 | $221.16 | $1,284.39 |
| 21 | $250.00 | $225.39 | $1,058.99 |
| 22 | $250.00 | $229.71 | $829.28 |
| 23 | $250.00 | $234.11 | $595.17 |
| 24 | $250.00 | $238.60 | $356.57 |
| 25 | $250.00 | $243.17 | $113.40 |
| 26 | $115.57 | $113.40 | $0.00 |
Field guide
How a credit card actually gets paid off.
A credit card balance is a revolving loan with one of the highest interest rates the legal system allows. Every month the issuer charges interest on whatever balance is still outstanding, and that interest is added back to your balance, meaning next month you pay interest on the interest. The math is simple, but the consequences are brutal: the longer you take to pay it off, the more of every dollar you send goes to the bank instead of to your debt.
The monthly mechanics
Each statement cycle the issuer:
- Charges interest on your average daily balance (we model it as
balance × APR ÷ 12for clarity — the difference is small). - Asks for a "minimum payment": a small slice of the balance, sometimes literally just enough to cover the interest plus a token amount of principal.
- Rolls the rest forward to next month, where it gets charged interest again. And again. And again.
The base formula
With a fixed monthly payment M, a balance B₀, and a monthly rate r = APR ÷ 12, the number of months n until you pay it off is:
That formula breaks the moment M ≤ r·B₀, i.e., when your payment is smaller than the interest. The denominator goes to zero and the equation has no real solution. That's the trap.
Warning
The Minimum Payment Trap
The minimum payment isn't designed to get you out of debt . It's designed to keep you in it. It's the smallest legal sum the issuer can collect while still leaving you on the hook for the rest. On a typical card it's set to about 1–3% of the balance (sometimes "interest charged + 1% of principal"), which is just barely above the interest charge in month one. As the balance falls, so does the minimum, so you pay less and less each month, which means principal drops slower and slower.
A real-world example: a $5,000 balance at 22.99% APR with a 2% minimum will take roughly 23 years to pay off if you only ever pay the minimum and you'll pay around $8,000 in interest on top of the original $5,000. Pay a fixed $250/month instead and the same card is gone in about 2 years with under $1,300 of interest.
The fix is simple but non-obvious: ignore the printed minimum and pay a fixed dollar amount that doesn't shrink as the balance shrinks. The earlier you do this, the more dramatic the savings.
How compounding interest works against you
People talk about compounding as a force that builds wealth, but the same mechanism builds debt, only faster, because credit-card APRs are 4–5× higher than what investments return. With a 22% APR on a $5,000 balance, you're charged roughly $92 in interest the very first month. If your minimum payment was $100, only $8 went to principal — the remaining $92 simply paid the rent on yesterday's debt. Next month the balance is still $4,992, and you're charged $91.85 in interest. The needle barely moves.
That's compounding working against you: not just the balance, but the fraction of every payment that disappears into interest. The only way out is to push the principal down fast enough that the interest charge falls out of proportion to the payment, which only happens once you pay significantly more than the minimum.
Why a fixed payment beats the minimum every time
The minimum payment shrinks with your balance, so as you make progress the bank actually asks for less — which is convenient for the bank and disastrous for you. Locking in a flat dollar figure (say, $200/month no matter what the statement says) inverts the dynamic:
- The monthly interest charge keeps falling as the balance falls.
- So the principal portion of your payment keeps growing.
- So next month's interest charge falls even more.
Compounding now works for you. The fixed payment is the single biggest behavioural lever in personal debt payoff — bigger than balance transfers, bigger than haggling for a lower APR, bigger than refinancing.
Worked example
A $5,000 balance at 22.99% APR:
- Minimum only (2% of balance, $25 floor): ~23 years to pay off · ~$8,000 in interest.
- Fixed $150/month: ~4 years 4 months · ~$2,750 in interest.
- Fixed $250/month: ~2 years 1 month · ~$1,260 in interest.
- Fixed $500/month: ~11 months · ~$595 in interest.
Doubling the monthly payment doesn't double your savings — it more than triples them, because every extra dollar compounds against the rest of the debt for the entire remaining term.
Tactics that escape the trap
- Pick a fixed monthly amount you can sustain , the highest you can afford after rent, food, and the minimums on other debts. Treat it like a rent payment, not a "discretionary" line item.
- Pay more often than monthly. Two payments of half the amount, two weeks apart, lower your average daily balance and slightly reduce the interest charged.
- Stop new charges first. A balance you keep adding to is mathematically uncatchable. Move daily spending to debit until the card is gone.
- Consider a 0% balance transfer if you can pay the full balance off during the promo window, but watch the transfer fee (3–5% is typical) and what the rate jumps to afterwards.
- Call and ask for a lower APR. If you have a clean payment history, a 30-second phone call can shave several points off, which compounds in your favor for the entire remaining payoff.
What this calculator doesn't model
We assume a fixed APR (no promo periods or default-rate jumps), no late fees, no annual fee, and no new charges added to the balance. Real card statements compute interest on the average daily balance with a small grace-period twist; we use a clean monthly compounding model that's within a few cents of the issuer's number for any reasonable inputs. If you're carrying a cash-advance balance separately from purchases, the math gets messier. Those balances are usually charged a higher rate and don't get a grace period.
Disclaimer
Results are estimates for educational purposes. Always confirm payment amounts, terms, and APRs with your card issuer.