Debt Avalanche vs Snowball Calculator

Minimum Payment Calculator UK

Minimum payments look affordable, but they can keep borrowers in debt for years. This page helps you estimate repayment time and interest cost, then compare what happens if you switch to a faster strategy.

Check your real payoff timeline:

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What to calculate first

Why minimums are slow

When APR is high, a large share of each minimum payment goes toward interest, not principal. That means progress feels tiny for a long time. If minimums are close to monthly interest, balances can barely move.

Even adding £50 to £100 monthly can materially reduce both total interest and repayment years. The calculator compares this directly with snowball and avalanche so you can see a practical, realistic plan.

What to look for in your results

UK minimum payment formula basics

Most UK cards calculate the minimum as either a fixed percentage of balance (often 1% to 3%) plus interest and fees, or a fixed floor such as £5 to £25. Because the minimum falls as balance falls, repayment can stretch for years unless you fix your own target payment above minimum.

If your statement shows persistent high interest and very slow balance reduction, you are likely in a minimum-payment trap. Your fastest safe fix is usually to keep all minimums current and add one fixed extra monthly amount toward a priority debt.

How to escape minimum-payment dependency

Move from minimums to a strategy

Once you know your minimum-only outcome, compare two upgrade paths: debt avalanche (cheapest overall) and debt snowball (motivation-first). Both are usually far better than staying on minimums alone.