The UK's tax authority says 27,456 people filed in the final hour before the cut-off at the end of Saturday.
HMRC said people who are not yet required to use MTD will also move to the new penalty system starting in April 2027. This ...
Around one million taxpayers missed the HMRC self-assessment deadline, triggering automatic £100 fines and potential interest charges for late filers.
There were 475,722 taxpayers in the UK who waited until the final day to file their return.