How does switching credit cards help me save?

Switching to a card with a lower interest rate, especially during a promotional balance transfer period, can significantly reduce how much interest you pay while repaying your balance.

Can I combine switching with overpayments?

Yes. Combining a balance transfer with overpayments is one of the most effective ways to reduce both your interest costs and the time it takes to become debt-free.

Does this calculator include both types of payments?

Yes. You can model one-off payments, regular overpayments, and switch-based interest rate changes in one tool.

What interest rate should I use after switching?

If you're switching to a 0% balance transfer card, use 0% for the promotional period, then the card's revert rate afterward. The calculator allows you to model both.

OPTIMLY Calculators | Credit Card Balance Transfer & Overpayment Advanced Calculator

Credit card details

CARD BALANCE:

APR, %:

MIN REPAYMENT, %:

MIN REPAYMENT, £:

MINIMUM REPAYMENT TYPE:

Make one-off overpayments

Make regular overpayments

Switch

BALANCE TRANSFER, APR %:

BALANCE TRANSFER FEE, %:

BALANCE TRANSFER PERIOD, MONTHS:

START DATE:

END DATE:

Advanced options

EXISTNG SPECIAL RATE, %:

UNTIL:

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