Shoppers spent £6.4bn online during November, equivalent to £104 per person, according to the IMRG Capgemini e-Retail Sales Index.
Sales were up 23.4% month-on-month and 21.5% year-on-year.
Christmas was the big sales driver and the gift sector delivered the largest growth - up 123% month-on-month, the biggest leap since between October and November in 2006.
Big ticket items fared well as shoppers made purchases before the VAT hike in the New Year. Sales of electrical items were up 44% month-on-month and 12% year-on-year.
Clothing, footwear and accessories sales also jumped as consumers rushed to buy winter jackets and woolly socks as the big freeze set in. The sector managed a year-on-year increase of 35% - its strongest growth for 18 months.
There was also a 50% leap in the clothing sales conversion rate, suggesting consumers are not just surfing the net to window shop but researching the best price and placing an order.