
Personal Self Assessment filing date has been extended and you will not be charged a late filing penalty if submitted by 28 February
You can delay filing your return to avoid late filing penalty but you may still need to pay any tax owed by 31 January midnight as this deadline hasn’t been extended. Interest is charged at a rate of 2.6% on any unpaid tax from 1 February, plus additional penalties.
source: https://www.facebook.com/HMRC/photos/a.1599205683694657/2874064832875396