Hmrc tax return
Hmrc self assessment
Tax return deadline uk.
31 January 2025: online tax returns and first payment on account due
This is the deadline for online tax returns for the 2023-24 tax year. HMRC must have received your tax return by midnight.
Usually, the only time this deadline may differ is if you received a notice to make an online tax return from HMRC after 31 October 2024, in which case you have three months from the date of issue to file.
The deadline to pay your tax bill is also 31 January, and if you're self-employed it's the day you'll have to make your first payment on account for the 2024-25 tax year, and a balancing payment if tax is still owed from your 2023-24 income.
If you're late paying your tax bill, you'll incur interest from HMRC.
Late payment interest is set at the Bank of England base rate plus 2.5%.
6 April 2025: first day of the new 2025-26 tax year
New tax rates and allowances for 2025-26 will come into force from today, so make sure you know if anything has changed.
If you h
