Understand the basics
A balance transfer moves debt to another card, often with a lower or 0% introductory rate. That can give more of each payment room to reduce principal.
Calculator
Balance transfer calculator UK
Compare the transfer fee, the promo window, and the post-promo rate before you move a balance.
Your details
Compare your current card with a balance transfer offer.
Results
See your potential savings
Enter the current balance and transfer details, then run the analysis to see cost breakdown, interest savings, payoff timing, and a comparison with keeping the current card.
Your results will appear here
Fill in the details above to see your personalised analysis with cost breakdowns and payoff projections.
How it works
How balance transfers work
Move a balance to a lower introductory rate, then use the promo window to pay down principal before the regular APR returns.
Factor in the key details
The fee, promo window, and post-promo APR decide whether the offer works.
- Transfer fee: Usually 1–5% of the amount moved.
- Promo window: Often 6–24 months; use it to pay down principal.
- Revert rate: The APR that applies after the offer ends.
Use the calculator
Enter the card figures, transfer offer, and any extra payment. The comparison shows the fee, interest, payoff timing, and balance left at the promo deadline.