Tax Return Deadline Uk 2024. This is the deadline for submitting your 2023/2024 online self assessment tax return and for paying the tax you owe. There are several ways you can ask.

January 31st marks the first deadline of 2024, in which hmrc must receive your online tax return before midnight for the tax year starting 6th april 2022 and finishing 5th april. Second payment on account due.