Credit Card Repayment Calculator Australia 2026

On a $5,000 balance at 19.99% p.a. making minimum payments of 2% of the outstanding balance (declining as the balance falls), it takes approximately 8.5 years to pay off and costs over $5,000 in interest — more than the original debt. Making fixed payments of $200/month reduces this to 2.8 years and $1,650 in interest. Use our calculator above to see your exact figures.

A balance transfer to a 0% promotional card can save significant interest if: (1) you can repay most of the balance during the promotional period, (2) you account for the balance transfer fee (typically 1-3% of the amount transferred), (3) you set up a direct debit for minimum payments to avoid losing the 0% offer, and (4) you have a clear plan for any remaining balance before the revert rate applies. For balances you can repay within 12-24 months, a balance transfer is usually worth it despite the fee.

The interest-free period (typically 44-55 days on Australian cards) means no interest is charged on purchases if you pay the full closing balance by the due date each month. It does NOT apply to cash advances (immediate interest), balance transfers (different terms apply) or if you carry any balance from the prior month. To benefit from interest-free periods, you must pay the full statement balance in full by the due date every month without exception.

The avalanche method means paying minimum payments on all credit cards, then directing all extra money to the card with the highest interest rate first. Once that card is paid off, roll all those payments to the next highest-rate card. This approach minimises total interest paid across all cards and is mathematically optimal. The snowball method (smallest balance first) is psychologically easier but costs more in total interest.

Most Australian home loan lenders assess credit card exposure at approximately 3.8% of the credit limit per year, regardless of your outstanding balance. A $10,000 credit card limit reduces your assessed borrowing power by approximately $50,000-60,000. If you're planning to apply for a home loan, close or significantly reduce credit card limits well in advance of your application to maximise borrowing capacity.

Yes. Calling your card issuer and requesting a rate reduction works approximately 30-50% of the time for customers with good payment history. Mention you're considering a balance transfer to a competitor with a better rate. If unsuccessful, ask again in 3-6 months, or actually transfer to a lower-rate card. Lenders prefer retaining customers over losing them to competitors.

If your savings account rate (typically 4-5% p.a. in 2026) is lower than your credit card rate (19.99% p.a.), using savings to pay off the card is mathematically beneficial — it provides a guaranteed return of 19.99%. Always maintain a small emergency buffer (1-2 months living expenses) before aggressively paying down credit card debt to avoid a situation where you need to use the card again for emergencies.