Online sales figures in November represented 19.9% of total non-food sales in the British Retail Consortium's survey - which is a record proportion for digital sales.
The online growth was the best this year and, excluding December months, the best in three years.
The BRC said November's sales got off to a slow start but picked up in a big way in the final week.
More top news
A family has issued an appeal to help find their missing pet turkey - in case he gets gobbled up as someone's Christmas dinner.
The winner of X-Factor Ben Haenow has revealed how keen he is to have the Christmas number one.
The Ministry of Defence has announced that the first British reservists have set off for Sierra Leone to help tackle the Ebola outbreak.