# Debt payoff calculator: when will I be debt-free?

URL: https://computenow.co.uk/debt-payoff-calculator/

> List up to five debts and see the month each is paid off. Compare snowball and avalanche to find the fastest, cheapest order. Free, no sign-up.

This calculator shows a worked example below. To use your own figures, add them to the URL as query parameters (listed in https://computenow.co.uk/llms.txt), for example https://computenow.co.uk/debt-payoff-calculator/?<parameter>=<value>.

[What's Left, step 4 of 7: When will my debts be paid off?](https://computenow.co.uk/money-plan/#steps)

# Debt payoff calculator

Compare the snowball and avalanche methods to find the fastest, cheapest way to clear several debts.
Rates checked 18 October 2026
By the ComputeNow team, checked against GOV.UK and HMRC[Sources (1)](#sources)[How we calculate](https://computenow.co.uk/methodology/)

You will be debt-free in
21 months
with the avalanche method, paying £822.03 in interest: £42.81 less than snowball.

## Avalanche vs snowball

| Item | Avalanche | Snowball |
| --- | --- | --- |
| Months to clear every debt | 21 | 21 |
| Total interest | £822.03 | £864.84 |
| Interest saved | £42.81 |  |

Order debts are cleared (avalanche): Credit card A, then Credit card B, then Personal loan.
This is an estimate, not financial advice.

### Next steps

- [Debt consolidation calculator](https://computenow.co.uk/debt-consolidation-calculator/?debt=7500&payment=400&current=14.83)Compare one loan for all of it.

Added. [See what's left each month](https://computenow.co.uk/money-plan/)
[What's Left](https://computenow.co.uk/money-plan/) adds up your monthly figures from each calculator and shows what is left each month.
[You will be debt-free in 21 months Breakdown](#result)

## If money's tight, free help is available

It's confidential, it costs nothing and getting advice won't affect your credit score. These services help people every day with bills, borrowing and debts of any size:

- [MoneyHelper](https://www.moneyhelper.org.uk/en/money-troubles) backed by the government, with a free debt advice locator
- [Citizens Advice](https://www.citizensadvice.org.uk/debt-and-money/) online, by phone or in person near you
- [StepChange](https://www.stepchange.org/) debt charity, online advice any time
- [National Debtline](https://nationaldebtline.org/) free phone and webchat advice

## Which method should you use?

Avalanche pays extra off the highest-rate debt first, which always costs the least interest.
Snowball clears the smallest balance first. It costs a little more, but quick wins help many people stay on track. Leave a balance blank if you have fewer than three debts.

## Related calculators

[Credit card payoff calculator How long to clear your balance](https://computenow.co.uk/credit-card-payoff-calculator/)[Debt consolidation calculator Is one loan cheaper?](https://computenow.co.uk/debt-consolidation-calculator/)[Budget calculator Split your pay with 50/30/20](https://computenow.co.uk/budget-calculator/)

## Guides and help

### Official services and free advice

[Options for paying off your debts GOV.UK: plans, breathing space and more](https://www.gov.uk/options-for-paying-off-your-debts)[StepChange Free debt advice charity](https://www.stepchange.org/)[National Debtline Free, confidential debt advice](https://nationaldebtline.org/)[Citizens Advice: debt and money Free, independent advice](https://www.citizensadvice.org.uk/debt-and-money/)

## Sources

Each source was last checked on 18 October 2026.

- [FCA: Understanding APR](https://www.fca.org.uk/consumers/credit-cards)
These results are an estimate, not financial advice. They use the 2026/27 rates in force on 24 October 2026 and the inputs shown, so your actual tax, pay or costs may differ. Before making a decision about your money, check the figures with HMRC or your provider, or speak to a regulated financial adviser. Free, impartial guidance is available from MoneyHelper.
This page explains the rules using the 2026/27 rates in force on 24 October 2026. It is general information, not financial advice. For decisions about your own money, speak to a regulated financial adviser, or get free, impartial guidance from MoneyHelper.