Retail spending charged to electronic cards rose 0.5 per cent last month, seasonally adjusted, on top of a 0.4 per cent increase in October.
Excluding petrol stations and car yards, spending was up 1 per cent, its strongest increase since April.
Westpac economist Michael Gordon said it added to the list of indicators that the economy's September quarter slowdown would prove short-lived.
Transactions charged to debit, credit or charge cards represent about two-thirds of retail spending.
Firms selling household durables and in the hospitality sector each recorded a $16 million increase in sales, representing increases of 1.6 and 2.6 per cent respectively.