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What date do I have to submit my 2023-24 self assessment tax return by? | Self-assessment deadlines 2023-24

What date do I have to submit my 2023-24 self assessment tax return by? | Self-assessment deadlines 2023-24

Mike Wakeford

When is my Self-assessment tax return due?

The deadline for submitting paper self-assessment tax returns for the 2023-24 tax year is 31 October 2024. If the return is submitted late, an initial £100 penalty will be imposed, regardless of whether there is a tax liability or if any owed tax is fully paid by 31 January 2025. The penalty increases if the return is submitted more than 3 months late.

We recommend that taxpayers still using paper returns consider switching to electronic submission, which offers an additional three months (until 31 January 2025) to file their self-assessment tax return.

Do I need to submit a self-assesment tax return?
HMRC offer an online tool to check if a self-assessment tax return is necessary. It covers questions on self-employment, off-payroll working, pensions, income totals and questions on other income.
How much are the penalties for submitting more than 3 months late?
Daily penalties of £10 per day will take effect if the tax return is still outstanding three months after the filing date up to a maximum of £900. If the return still remains outstanding further higher penalties will be charged from six months and twelve months late.

Do I need to inform HMRC I need to submit a tax return?
You must inform HMRC by 5 October 2024 if you need to complete a tax return for the 2023-24 tax year and have not done so before. Our specialist tax team can help provide best prepare for your self assesment tax return and ensure you reach the correct deadline. if you are still processing your self-assessment tax return in person and submitting via post we can help you make the transition to an electronic submissions giving you peace of mind by ensuring that your self-assesment tax return is correctly submitted on time. For more information on how our team can help with your tax returns, contact our team today. 
 
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Are you ready for deadline day? If you are unsure of your tax position and need help with your self-assessment tax return please contact us.