Retail spending charged to electronic cards rose 0.3 per cent last month, to be 3.9 per cent higher than in March last year.
When the automotive sector is excluded - particularly fuel purchases, which dropped 2.5 per cent despite higher petrol prices - core spending charged to debit, credit and charge cards was up 0.5 per cent.
But that only reversed a 0.5 per cent drop recorded in February.
For the March quarter as a whole core spending via electronic cards was 0.4 per cent higher than in the December 2011 quarter.
ASB economist Daniel Smith said spending in a couple of the more volatile areas rebounded from weak February results.