The Co-operative Group will complete its two-year rollout of contactless payment technology in its food stores by the end of the year.

Shoppers can currently pay via contactless payment in 2,000 of the society’s 2,800 stores, and The Co-op said it was aiming to have the technology across its entire estate by the end of 2014.

About 7% of its customers paid using contactless, a Co-op Group spokesman said, adding that the figure was continuing to grow.

The Co-op first trialled contactless payments in a handful of food stores in 2012, before introducing it to 200 food and pharmacy branches within the M25 in time for the London 2012 Olympics.