New customers can transfer balances from either one or two cards from other providers. Existing NAB cardholders don’t need to apply for a new credit card to transfer a balance, although the balance transfer interest rate may be higher than the promotional introductory rate for balance transfers offered to new customers. There may be an upfront balance transfer fee to pay. Check the details for the card before you apply for a balance transfer. Apart from NAB, most other banks offer balance transfers. Check out our balance transfer comparison to check NAB's offers against various others.