Precision Utility
Debt Repayment
Calculator
Avg UK Household Debt
£65,400
Avg Unsecured Debt
£4,200
Find out exactly how long it will take to clear your debt and how much interest you will pay in total. Enter your outstanding balance, interest rate and monthly payment to get a personalised repayment timeline. The calculator shows you the true cost of your debt so you can plan your way to becoming debt-free.
Debt Details
Time to Clear Debt
0 months
Total Interest Paid
£0
Total Amount Paid
£0
Interest as % of Debt
0%
Monthly Payment
£0
How the debt repayment calculator works
Enter your total outstanding debt — the combined balance you owe across all accounts. Next, enter the interest rate (APR) being charged on the debt. If you have multiple debts at different rates, use the weighted average or run the calculator separately for each one. Then set the monthly payment you plan to make.
The calculator runs a month-by-month amortisation loop. Each month, it charges interest on the remaining balance at your APR divided by 12, then subtracts your monthly payment. It counts each month until the balance reaches zero, giving you the total number of months to clear your debt, the total interest you will pay and the total amount paid overall.
If your monthly payment does not cover the monthly interest charge, or if the debt would take more than 50 years to clear, the calculator warns you that the balance will not be paid off at that rate. In that case, you need to increase your monthly payment or explore other options such as consolidation or professional debt advice.
Understanding debt repayment in the UK
The average UK household carries around £65,400 in total debt including mortgages, according to the Money Charity. Unsecured debt — credit cards, personal loans, overdrafts and car finance — averages around £4,200 per adult. Understanding how interest compounds on these balances is the first step to building an effective repayment plan.
The minimum payment trap is one of the most common pitfalls. Minimum payments are designed to keep your account in good standing, not to clear the debt efficiently. On a £10,000 balance at 18% APR, minimum-only payments could mean paying back more than double the original amount over decades.
Two popular strategies can help you prioritise multiple debts. The debt avalanche method targets the highest interest rate first, saving the most money overall. The debt snowball method targets the smallest balance first, giving you quick wins that build momentum. Choose whichever approach you are more likely to stick with.
Free help is available. If you are struggling, contact StepChange (0800 138 1111), Citizens Advice or National Debtline. These charities provide free, confidential advice and can help you set up a Debt Management Plan, apply for a Debt Relief Order, or explore other formal options like an IVA or bankruptcy.
Frequently asked questions
Why is paying only the minimum so dangerous?
Minimum payments are typically calculated as a small percentage of the balance plus interest. Because so little of the principal is repaid each month, interest keeps compounding on a barely-shrinking balance. A £10,000 debt at 18% APR with minimum-only payments could take over 25 years to clear and cost you more in interest than the original debt. This is known as the minimum payment trap.
What is the difference between the debt avalanche and debt snowball methods?
The debt avalanche method prioritises paying off debts with the highest interest rate first, which saves you the most money overall. The debt snowball method prioritises the smallest balances first, giving you quick psychological wins. Mathematically the avalanche method is cheaper, but studies show the snowball method can be more motivating for some people because you eliminate individual debts faster.
Are debt consolidation loans a good idea?
A debt consolidation loan can be a smart move if the interest rate is lower than your current debts and you commit to not taking on new borrowing. By rolling multiple debts into a single monthly payment at a reduced rate, you simplify your finances and can pay less interest overall. However, stretching the loan over a longer term may mean you pay more in total even at a lower rate. Always compare the total cost, not just the monthly payment.
How does debt affect my credit score?
High levels of outstanding debt can lower your credit score, particularly if you are using a large proportion of your available credit (known as credit utilisation). Missing payments has the most severe impact, and defaults or CCJs remain on your credit file for six years. Consistently reducing your debt and making payments on time will gradually improve your score over time.
When should I seek professional debt help?
If you are struggling to make minimum payments, borrowing to cover existing debts, or feeling overwhelmed, it is time to seek free professional advice. StepChange (0800 138 1111) is a UK charity offering free, confidential debt advice. Citizens Advice and National Debtline are also excellent free services. They can help you explore options like Debt Management Plans, Debt Relief Orders and breathing space schemes.
What is the difference between an IVA and bankruptcy?
An Individual Voluntary Arrangement (IVA) is a formal agreement with your creditors to repay a portion of your debts over a fixed period, usually five to six years. Bankruptcy is a legal process that writes off most unsecured debts but can involve selling your assets, including your home. An IVA lets you keep more control of your assets, while bankruptcy provides a faster fresh start but has more severe consequences. Both remain on your credit file for six years and should only be considered after taking professional advice.