What Happens If You Only Pay the Minimum Balance?

Making minimum payments on credit cards keeps accounts in good standing, but paying only minimums can extend repayment timelines by decades.

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The Minimum Payment Formula

Credit card minimum payment formulas are typically calculated as:

$$\text{Minimum Payment} = \max\left( \text{Fixed Fee (e.g. £5)}, \text{Interest} + \text{Fees} + 1% \text{ of Principal} \right)$$

As your balance decreases, the required minimum payment also decreases. This decreasing payment structure slows down principal reduction.

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Mathematical Impact of Minimum-Only Repayments

For a £3,000 credit card balance at 22.9% APR with a typical minimum payment formula:

• Time to Clear (Minimum Only): ~18 years and 4 months.
• Total Interest Paid: ~£2,850 (nearly doubling the original debt).

If you add just £50 extra per month:

• Time to Clear: ~3 years.
• Total Interest Paid: ~£780 (saving over £2,000 in interest).

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Calculate Your Payoff Timeline

See how extra payments shorten your repayment schedule with our free Debt Payoff Calculator UK.