Credit Card Payoff Calculator

About the Credit Card Payoff Calculator

A credit card is not a loan with a different name, and the difference comes down to one design detail:

The minimum payment is a percentage of the balance.

On any ordinary loan the payment is fixed. Every month clears the same amount of principal and the debt dies on a date you can circle in a diary.

On a card the minimum shrinks as the balance shrinks. Pay it down and the required payment falls with it, so each month clears less than the one before. The balance approaches zero without arriving.

That is the entire subject, and most card calculators hide it by asking you for a fixed monthly payment — which is not what a minimum payment is.

How to Use the Credit Card Payoff Calculator

Enter the balance and the APR from your statement.

Minimum payment is the percentage your issuer uses, typically between 1% and 5% of the balance. Or at least is the cash floor below which it does not fall. Both are on your card agreement, and the combination is what produces the long tail.

What you could pay instead is a fixed amount. Leave it at zero to see the minimum alone.

Step-by-Step Example

£5,000 at 22.9%, minimum 2% or £25.

  This month's interest:   5,000 × 22.9% ÷ 12  =   95.42
  This month's minimum:    2% of 5,000         =  100.00

  Clearing 5.42 of principal.

£100 goes out. £95.42 of it is interest. £4.58 comes off the debt.

And next month the minimum will be slightly less than £100, because the balance is slightly smaller.

At that minimum, this card does not clear within sixty years.

The Fix That Costs Nothing

Here is the most useful thing on this page, and it does not involve paying more.

Pay the same amount every month.

  Minimum, shrinking:      does not clear in 60 years
  £100 fixed, every month: 13 years 8 months

Identical payment in month one. The only change is refusing to let it fall.

Set a standing order at today's minimum and leave it. That single action converts a debt that outlives you into one that ends — and it costs nothing extra in the first month, or any month.

Paying more is better still: £200 a month clears the same card in 2 years 11 months with £1,859.78 of interest. But notice that the first change is free and the second is not.

When the Minimum Does Not Cover the Interest

If the minimum is below the monthly interest charge, the balance grows while you pay it.

  Balance 5,000 at 30%:  interest is 125.00 a month
  Minimum at 1% or £5:   50.00

Every payment on time, every month, and the debt gets larger. This is the worst position the calculator can report, and nothing about it improves with patience.

The routes out are a balance transfer, a consolidation loan, or a payment plan agreed with the issuer. A free debt advice service will work through all three properly and without charge, and will do it better than any calculator.

Why the Floor Matters

The cash floor — "2% or £25, whichever is greater" — is doing more work than it looks.

On £3,000 at 18% with a 4% minimum:

Without a floor the payment shrinks in proportion forever, and the balance decays towards zero without quite reaching it. The floor is what turns that tail into a finite term.

Should You Clear the Card Before Saving?

At typical card rates, almost always.

Paying off a balance at 22.9% is a guaranteed 22.9% return, with no market risk and no waiting. No investment reliably delivers that, and no savings account comes close.

Two exceptions:

An employer pension match, which is a larger guaranteed return and should come first.

One month of essential costs kept accessible, so the next unexpected bill does not go straight back onto the card you just cleared. That is the trap people fall into repeatedly — paying steadily for years and staying in the same place.

Understanding Your Result

At the minimum is the headline: how long, or that it never gets there.

What that costs gives the total interest and what you repay in all.

The same payment, held steady is the free fix.

At a fixed payment shows what your own figure achieves — and refuses to quote a saving against a minimum that never finishes, since there is no total to compare against.

Worth knowing names the next action.

When Should You Use This Calculator?

When you are paying the minimum on anything. This is the case it exists for.

Before a balance transfer. Work out the fixed payment that clears the balance before the promotional rate ends.

To decide between clearing debt and saving. The rate usually settles it.

To set a standing order. Then never change it downwards.

Common Mistakes

Paying the minimum because it is what the statement asks for. The statement asks for the amount that keeps the debt alive longest.

Letting the payment fall as the balance does. This is the trap, and freezing it is free.

Treating the minimum as a payment plan. It is the issuer's revenue model, not a schedule.

Taking a 0% transfer without a payoff plan. It converts interest into a deadline. A deadline you miss simply moves the debt.

Saving while carrying card debt. A 4% savings account against a 22.9% card is a guaranteed loss of about 19% a year.

Clearing the card and keeping no buffer. Without one, the next bill puts it straight back.

Every figure here is an estimate for planning. Card terms vary and this is not financial advice. If debt is unmanageable, a free debt advice service is the right place to go.