The June quarter, which included alert level 4 nationwide lockdown, saw the value of spending at retailers on the Paymark network drop 15.5 per cent compared with 2019.
But by December, spending for the year was up 5 per cent.
Retail spending across the eftpos network in 2020 was $42.6 billion, an increase of just 0.1 per cent.
The average value per transactions increased, from $39.04 to $42.58.
Retailers experienced the highs and lows of 2020 differently, according to Paymark.