HMRC reported a record-breaking self assessment season in 2014, with more than 93% of filers meeting both the online and paper deadlines.
More than 10.03 million returns were received by midnight on 31 January, compared to 9.61 million in 2012/13, and the Revenue received its highest ever number of online returns.
Deadline day between 4-5pm was the busiest period for filers, with more than 45,000 returns being processed in that hour, and half a million during the entire day.
Despite the highest ever number of on-time filers, the tax season was not without glitches.
Citibank, the Revenue's bank, experienced issues on...