Pay Off a £15,000 Credit Card: Debt-Free in 36 Months
Paying £600.00 a month clears £15,000 in 36 months (3.0 years), with £6,204 of interest.
Updated for the 2026 tax year · Rates checked 14 October 2026
| Monthly payment | £600.00 |
|---|---|
| Months to debt-free | 36 |
| Total interest | £6,204 |
| Total paid | £21,204 |
| Minimum-payment months | 505 |
| Minimum-payment interest | £30,400 |
| Interest you save vs minimum | £24,197 |
- Paying £600.00 a month clears £15,000 in 36 months (3.0 years), with £6,204 of interest.
- Paying only a typical minimum (interest + 1% of the balance, at least £5) would take 505 months (42.1 years) and cost £30,400 in interest.
- Moving the balance to a 0% balance transfer card, or paying off the highest-rate card first (the avalanche method), saves the most interest.
Your result, explained
Paying £600.00 a month, you will be debt-free in 36 months (3.0 years) and pay £6,204 in interest. That saves £24,197 compared with paying only the minimum, which would take 505 months.
To get out faster: stop adding new spending to the card, pay the highest-rate card first (the avalanche method), and consider a 0% balance transfer or a lower-rate personal loan. Every extra payment goes straight to the balance.
Payoff by year
| Year | Paid so far | Interest so far | Balance left |
|---|---|---|---|
| 1 | £7,200 | £3,251 | £11,051 |
| 2 | £14,400 | £5,418 | £6,018 |
| 3 | £21,204 | £6,204 | £0 |
Compare nearby amounts
| Amount | Months to pay off |
|---|---|
| £7,500 | 36 |
| £10,000 | 36 |
| £15,000 | 36 |
| £20,000 | 36 |
| £25,000 | 36 |
How card interest works
Card interest is charged monthly at roughly APR ÷ 12 on your balance. At 20% APR, a $5,000 balance costs about $83 a month in interest, so a small payment barely dents the debt. Paying only the minimum can stretch repayments over many years.