Debt tool
Debt Payoff Calculator
Estimate how long it could take to pay off debt, how much interest you may pay, and how much faster you could become debt-free by adding an extra monthly payment.
What this tool helps with
Use this calculator to compare your current payoff plan with a faster plan that includes extra monthly payments.
Current payoff time
3 years 8 months
Based on your normal monthly payment.
Faster payoff time
2 years 5 months
Based on your normal payment plus extra payment.
Payoff summary
Strong improvement
Payment share: 11.3% of income
The extra payment could make a meaningful difference to both payoff time and total interest.
Interest saved
£1,142
Time saved
1 years 3 months
First month breakdown
First month interest
£124
Balance reduction with normal payment
£96
Balance reduction with extra payment
£171
What this means
Extra payments usually help because more of your money goes towards reducing the balance, which means less future interest can build up.
How to use this result
The most useful figures are payoff time, total interest, and how much of your first payment actually reduces the balance.
If your payment is barely above the monthly interest, progress can feel very slow. Increasing payments or lowering the interest rate can make a big difference.
This calculator gives estimates only and does not provide financial advice.
FAQs
Why does debt take so long to clear?
High interest can absorb a large part of each payment, especially early on when the balance is highest.
Is paying extra worth it?
Often yes. Extra payments reduce the balance faster, which can lower future interest and shorten the payoff time.
Should I use snowball or avalanche?
Snowball focuses on smaller debts first for motivation, while avalanche targets higher-interest debts first to reduce cost.