Cyber Monday is expected to have beaten Black Friday for the first time to become Britain’s biggest shopping day of the year.

Online sales in the UK on Black Friday were up 11.7 per cent on last year, ending at £1.4 billion, according to online retail trade body IMRG.

However footfall in physical stores fell 3.6 per cent, according to retail analysis firm Springboard.

Cyber Monday, which has traditionally been an online-only 24-hour sale, is expected to have seen 21.5 million people buying discounted goods.

Predictions by VoucherCodes and the Centre for Retail Research suggest that Britons may have spent £7.8bn over the full four days, up seven per cent on 2016.

The figures suggest that Cyber Monday could have generated £7m more in total sales than Black Friday.

Meanwhile a survey by PwC estimated that online purchases surpassed in-store purchases on Black Friday in every age group.