Australians pulled out the plastic big time on Boxing Day, with one bank reporting a 30 per cent jump in card transactions over last year.
The National Australia Bank reported on Thursday it put through 3,839,518 ATM, EFTPOS and debit and credit card transactions, with a peak transaction rate of 100 per second.
"That's an increase of about 30 per cent from last year's Boxing Day, when just under three million transactions were processed at a peak transaction rate of 80 a second," a bank spokesman said.
He said the peak time for transactions on Boxing Day this year was 1pm.
Last Thursday, December 20, was the busiest day on the NAB network with the bank processing 7,728,359 transactions at a peak rate of 181.76 per second.
But Christmas Eve saw volumes peak at 206.58 per second - the highest peak transactions rate ever recorded by the bank for the Christmas period.
The bank processed a total of 6,974,766 transactions on December 24.