Tax Return Deadline 2024 Uk.  — you have until 11.59pm on wednesday 31 january 2024 to send hmrc an online tax return for the 2022/2023 tax year, which ended on 5 april 2023. It’s also the first deadline for submissions of tax returns.

The new tax year begins on 6 april 2024 and it ends on 5 april 2025.  — the deadlines for tax returns for the 2022 to 2023 tax year are 31 october 2023 for paper returns and 31 january 2024 for online returns.