Balance Transfer Savings Calculator
See exactly how much a 0% balance transfer card could save you versus staying put — and the one number that matters most: the monthly payment you need to clear the balance before the 0% deal ends.
Estimate only. This is an estimate — representative figures, not financial advice. It assumes a fixed monthly payment, no missed payments and no new spending on the card. Struggling with card debt? Free, independent help is available from MoneyHelper, StepChange or National Debtline.
Enter your card balance and monthly payment
The interest saved, the fee, and the monthly payment you need to clear the balance in time all appear here as you type.
How balance transfer savings are calculated
Staying put means interest keeps accruing on your card's standard APR every month, on top of whatever you're paying off — the same mechanics as a normal credit card payoff. Transferring adds a one-off fee to the balance, then charges 0% interest for the deal length: your whole monthly payment goes straight to the balance with nothing lost to interest. If your payment clears the transferred balance (plus fee) before the deal ends, the transfer's total interest is zero and the only cost is the fee. If it doesn't, whatever's left reverts to the standard APR and starts accruing interest again — which is why hitting the required monthly payment matters more than almost anything else in this decision.