Credit Card True Cost Calculator
See the real total cost of your credit card debt — interest, fees, and your true debt-free date. Compare against minimum payments.
⚠ Average UK credit card APR has risen 4.2% in 18 months. Your 'fixed' rate may not be as fixed as you think.
Understanding your numbers
This is the amount of money you pay the bank for the privilege of borrowing. It doesn't reduce your balance. On a typical credit card with 20%+ APR, you can easily end up paying more in interest than the original items you bought.
We calculate this by taking your total interest plus all annual fees, late fees, and government duties (like Ireland's €30 stamp duty) and dividing it by the number of years you'll be in debt. It's the "membership fee" for your debt.
Banks set minimum payments low (often just 2–3% of balance) to keep you in debt longer. By only paying the minimum, you ensure the bank maximizes their profit from your interest. Paying even £50 more per month can save you thousands.
This is the finish line. Our calculation assumes you don't add any new charges to the card. If you keep spending, this date will keep moving further into the future.
Three ways to escape faster
Knowledge is only half the battle. Action is the other half.
The Plus Payment Rule
"Small extra payments have a disproportionate impact because they reduce the principal balance, preventing future interest from compounding."
The 0% Balance Transfer
"Stops interest immediately. Every payment reduces debt, not bank profit. Use only if you can clear it before the promo period ends."
The Debt Avalanche
"Mathematically optimal. Not always psychologically easiest, but saves the most total interest across multiple cards."
What Is a Credit Card True Cost Calculator?
A credit card true cost calculator goes beyond your balance to reveal the full price of carrying debt. Most people only see their minimum payment — but the real cost includes months or years of compound interest, annual card fees, and (in Ireland) government stamp duty. The true cost formula is: True Cost = Total Interest + (Annual Fee × Years) + (Stamp Duty × Years). Seeing the final number is the single most motivating step toward becoming debt-free.
When Should You Use This Tool?
- You want to see exactly how long it will take to pay off your credit card balance
- You are deciding whether to pay more than the minimum each month
- You want to compare the true cost of two different credit cards
- You are considering a balance transfer and want to quantify the savings
- You are making a household budget and need to plan debt repayment accurately
How the Credit Card True Cost Calculator Works
Select Your Country & Card
Choose your country from the dropdown. The card list filters automatically to show real cards from your region with their actual APR and fee data.
Enter Your Balance & Payment
Type in your current outstanding balance and the amount you plan to pay each month. The currency symbol updates automatically.
See Your True Cost
Instantly see the total interest, all fees, and your exact debt-free date. The Shock Factor card shows the real price of your debt in one number.
Compare vs Minimum Payments
See side-by-side how much more you would pay — and how many more years you would spend in debt — if you only made minimum payments.
Get AI Advice
Tap the AI Advice button to receive personalised, actionable strategies from Gemini, tailored to your specific country and debt figures.