How to maximise repayment time on your credit card
Any credit card 55-day interest-free period will start the day after your statement date, so wait until then to purchase for maximum repayment time.
If it's going to take you a few months longer to clear Christmas spending avoid interest by taking out one of the dozens of new cards offering 0 per cent on purchases.
The longest credeit card now offering of zero interest on purchases is currently 15 months from NAB's Premium Visa card.
Source: The Age