Credit Card Payoff Calculator

See how long it takes to clear a credit card and how much interest you'll pay at a fixed monthly amount — and how much longer (and dearer) paying only the minimum would be.

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Enter your details, then press Calculate payoff to see the full breakdown.

Complete guide

Clearing credit card debt

Credit cards are easy to spend on and slow to clear. This guide explains why minimum payments are a trap, how to pay off faster, and when a balance transfer or consolidation helps.

The trap

Why minimum payments cost so much

UK minimum payments are typically the greater of around 1% of the balance plus that month's interest, or a few pounds. Because the percentage shrinks as the balance falls, the payment gets smaller over time and most of it goes on interest. Paying only the minimum on a typical card can take decades and cost more in interest than the original balance. Card statements now show how long minimum-only repayment would take — it's usually a shock.

The fix

Pay a fixed amount, not the minimum

The single most powerful move is to pay a fixed monthly amount rather than the shrinking minimum. Keeping the payment level means an ever-larger share clears the balance, and the debt falls away far faster. Even a modest increase over the minimum can cut years off the term — use the calculator to see your own numbers.

Go faster

Balance transfers and 0% deals

A 0% balance transfer card moves your debt to a card charging no interest for a promotional period (often 12–30 months), usually for a one-off transfer fee of 1–3%. Every pound you pay then clears the balance instead of feeding interest. To benefit, clear (or move) the balance before the 0% period ends and avoid new spending on the card. It's one of the cheapest ways to attack expensive card debt.

Clear it before the 0% ends

Set a standing order to clear the balance over the promo period. If you can't, plan another transfer before the rate jumps to the standard APR.
Multiple cards

Snowball vs avalanche

With several debts, two strategies work. The avalanche targets the highest-APR debt first (mathematically cheapest). The snowball clears the smallest balance first for quick wins and motivation. Both clear all debts; avalanche saves the most interest. The debt payoff planner compares them for your debts.

Avoid these

Common mistakes

  • Paying only the minimum. It stretches the debt over decades and maximises interest. Pay a fixed amount instead.
  • Spending on a 0% card. New purchases can lose the 0% benefit and complicate repayment. Use it only to clear the transferred balance.
  • Missing a payment on a 0% deal. A missed payment can cancel the promotional rate. Set up a direct debit.
  • Ignoring higher-APR debts. Tackle the most expensive debt first (avalanche) to save the most.
FAQ

Frequently asked questions

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