While there are still 11 months until the next self-assessment deadline on January 31 2026, it is never too early to complete your self-assessment tax return.
In fact, as soon as the tax year ends in a few weeks’ time, you can submit your tax return.
One thing you should avoid is leaving it to the last minute.
This year, there were still 5.4 million yet to file their 2023/2024 tax return four weeks ahead of the deadline, while 732,498 people completed and paid their self-assessments on January 31.
But leaving your tax return until the 11th hour can lead to increased stress and anxiety, errors and omissions not to mention potential delays and penalties.
Risk of late tax returns
Of the 12m taxpayers due to file a tax return for 2023/2024 and estimated £1.1m missed the deadline.
Those who do not file their tax returns or pay the tax they owe on time (also by January 31) will face a penalty – starting with an initial £100 fixed penalty before daily penalties are issued and additional penalties of 5% of the tax unpaid arise 30 days, six months and 12 months following the submission deadline.
Interest is also charged on any tax paid late. Figures show HMRC claimed £409m in late payment interest from taxpayers in 2024.
Benefits of early tax return filing
Last year, nearly 300,000 people completed their 2023/2024 tax return in the first week of the new tax year.
While it can seem a daunting task, by starting earlier, your approach will be more organised and you will therefore reduce the risk of mistakes and have greater peace of mind.
Most importantly, you will benefit from having more time to pay the tax you owe and can choose a payment option that works for you.
By taking practical steps you can transform a potentially stressful task into a manageable experience:
- Gather your records including receipts, bank statements and P60 forms
- Familiarise yourself with the tax bands, deductions and reliefs applicable to you
- Break down the process into manageable tasks and set achievable deadlines for each stage
- Regularly review your progress and make necessary adjustments as your circumstances change
- Once you’ve completed your return, submit it well ahead of the deadline to avoid any last-minute hurdles
Self-assessments are an essential part of fulfilling your tax obligations, so embrace the process and start early.
Apart from avoiding unnecessary penalties, it will be much less stressful and allow time to budget for your tax liabilities – particularly if there are surprise tax liabilities that arise.
