Deadline day saw 630,000 taxpayers filing their returns and the peak hour for filing was 16:00 to 16:59 when 52,475 completed their self assessment. There were 20,947 taxpayers who completed their tax return between 23:00 and 23:59.

Online filing figures hit 95.6% this year with only 4.4% of returns sent on paper forms with 452,629 taxpayers sticking to the old format.

More than 12.2m taxpayers were expected to file a self assessment tax return this year. The remaining 2.3m taxpayers expected to file by 31 January now have until 28 February to submit their late 2020/21 tax return and avoid a late filing penalty.