On 31 January, 861,085 customers filed online to meet the deadline, some with minutes to spare. There were 36,767 customers who filed in the last hour before the deadline, but the peak hour for filing on the day was 4 and 5pm when 68,462 customers submitted their tax return.
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More than 12 million customers were expected to file a Self Assessment tax return for the 2021 to 2022 tax year. HMRC is urging customers who missed the deadline to submit theirs as soon as possible or risk facing a penalty.
