Best Balance Transfer Credit Cards in Australia 2026: 0% Interest Periods Compared

A balance transfer card allows you to move existing credit card debt from one (or more) cards to a new card that charges 0% (or a very low promotional rate) on the transferred amount for a set period. The typical promotional period in Australia runs from 12 to 32 months, though the 30-month+ products are less common in 2026 than they were in 2020–2022.

During the promotional period, every repayment goes directly toward reducing your principal rather than servicing interest — which dramatically accelerates debt reduction. After the promotional period, the rate reverts to the card's standard rate, typically 19–22% per annum. The key rule: plan to have the entire transferred balance cleared before the promotional period ends. If you don't, you're back to paying high interest on the remaining balance.

When comparing balance transfer cards, look at these factors in order of importance:

Promotional period length: Longer is better — it gives you more time to pay down the debt at 0%. A 24-month offer on $10,000 means you need to pay $417/month to clear it. A 12-month offer means $833/month. Balance transfer fee: Most cards charge 1–3% of the transferred amount. On $10,000, that's $100–$300. This is still far less than a month of interest at 20%, but factor it into your calculations. Revert rate: The rate that kicks in at the end of the promotional period. If you won't clear the full balance, a card with a lower revert rate matters more. New purchases rate: Many balance transfer cards charge interest on new purchases from day one — do not use a balance transfer card for new spending during the promotional period.

You generally cannot transfer a balance from a card issued by the same bank as the new card — so if you have a Westpac credit card, you can't transfer to another Westpac product. You'll need to apply with a different institution. Most balance transfer cards require a credit score of 600+ (Equifax) and minimum annual income of $30,000–$40,000.

When you apply, the card issuer does a hard credit inquiry. If you're shopping around, do your research before applying formally — multiple applications in a short period can reduce your credit score. Some comparison sites now offer pre-qualification tools that use soft inquiries. Apply only for the card you intend to use.

Once approved, contact the new card issuer with your old card details to initiate the balance transfer. It typically takes 5–10 business days to process. Continue making minimum repayments on your old card until you've confirmed the transfer has completed.

The most common and costly mistake: using the new card for purchases during the promotional period. Because most cards allocate repayments to the transferred balance first (while new purchases accrue interest from the purchase date), you can end up with an interest-bearing purchase balance that grows throughout the period. Keep the new card for the balance transfer only, and use a separate card or debit card for everyday spending.

Second most common mistake: not clearing the balance before the promotional period ends. Set up automatic repayments (or a calendar reminder) to ensure you're on track. If you need to, increase your monthly repayment to guarantee you'll clear the balance in time. If the promotional period ends with a remaining balance, consider applying for another balance transfer card — though this requires approval and another hard inquiry.

How long are balance transfer promotional periods in Australia? Current market offers in 2026 range from 12 to 28 months. Longer promotional periods have become less common as interest rates have risen, but 18–24 month offers remain available from several issuers.

Is there a limit on how much I can transfer? Yes — typically up to 80–95% of your new card's credit limit. If you're approved for a $10,000 credit limit, you can transfer up to $8,000–$9,500. The remaining limit is for new purchases (which, as noted, you should avoid using).

Can I do a balance transfer from a personal loan? Most balance transfer offers are specifically for credit card debt and many cards explicitly exclude personal loans, mortgages, and lines of credit from eligibility. Check the terms before applying.

Does a balance transfer affect my credit score? The application creates a hard enquiry (slightly reduces your score). Opening a new account with a large limit can also temporarily reduce your score. However, paying down the transferred balance consistently will improve your score over time through reduced utilisation.

What happens to my old card after a balance transfer? Your old card account remains open unless you close it. Close it — having two credit cards with the potential to accumulate new debt is the biggest risk after a balance transfer. Closing a card slightly reduces your available credit, but eliminating the temptation is worth it.