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The Benefits of Having Your Tax Return Filed Early

Published By Susan Basnet
Published Date: January 9, 2025

( Last Updated: July 30, 2026 )

As the annual deadline for self-assessment tax returns approaches, many taxpayers find themselves scrambling to meet the deadline. For paper filers, the deadline to file the return for the tax year 2023/24 is already past due, i.e. 31 October 2024, whereas the deadline for online filers is 31 January 2025. It means that there is still time to file, but choosing to submit your tax return early can offer several significant advantages. Let’s explore why filing early could be a smart move for you.

Avoiding Last-Minute Stress

Filing your tax return early helps you avoid the inevitable stress that comes with waiting until the last minute. By tackling the process ahead of time, you can ensure that you have ample time to gather all necessary documents, resolve any discrepancies, and address any questions or concerns with your accountant or HMRC. If you have a professional accountant, providing the required information early ensures your return is filed promptly, relieving both you and your clients of the pressures of last-minute filing.

Knowing Your Tax Liability in Advance

One of the major benefits of filing early is that it gives you clarity on your tax liability well before the deadline. This allows you to plan your finances better. If you owe tax, you’ll have more time to arrange payment without the pressure of a looming deadline. Conversely, if you’re due a refund, filing early ensures you receive it sooner rather than later.

Knowing Your Tax Liability in Advance - tax return

For sole traders and property landlords, filing early is particularly advantageous. You may need to make advance payments for the tax year 2024/25 in addition to settling the full tax for 2023/24. This is known as Payment on Account (POA). The deadline for the first POA instalment, which is 50% of the tax due for 2023/24, is 31 January 2025, with the second instalment due (the remaining 50%) by 31 July 2025. Late payment penalties and interest charges can apply, so understanding your tax liability early is a significant advantage. While there are no penalties for late payment of income tax, you will be subject to interest on the late payment taxes, which is currently set at 7.25% of your income tax due.

If more than 80% of your tax liability is deducted at source, such as PAYE, or if your income tax liability for last year was less than £1,000, POA is not required.

Access to Professional Assistance

Tax professionals often experience a surge in demand as the filing deadline approaches. By filing your return early, you’re more likely to secure their undivided attention and benefit from their expertise. This can be particularly helpful if your tax situation is complex or if you need advice on optimising your tax position.

Delaying the provision of necessary information to your accountant can increase the risk of errors, especially during the busy filing season when accountants are managing multiple clients. An overburdened accountant might inadvertently make mistakes or overlook important details in your tax return. Even if they assume responsibility for such errors, you could find yourself entangled in legal complications.

Avoiding Penalties

HM Revenue and Customs (HMRC) imposes penalties if you file your tax return late or pay your taxes after the deadline. The penalties are charged based on the amount of tax due, and the lateness of filing the return. The penalties for late filing are as follows:

Date Return is Filed

Penalty Imposed

After due date - up to 3 months late

Fixed penalty of £100

3 months to 6 months late

Penalty of £10 per day (up to 90 days) in addition to £100.

6 months to 12 months late

Higher of:

  • 5% of tax due
  • £300

(In addition to above penalties)

More than 12 months late

Higher of:

  • 5% of tax due
  • £300

(In addition to above penalties)

Even if there is no tax to pay, the penalties for late filing could go as high as £1,600 if your tax return is a year late. Filing early reduces the risk of missing the deadline due to unforeseen circumstances, such as illness, technical issues, or delays in obtaining required information. Therefore, you will save a lot of money just by filing your return early.

Reduced Risk of Errors

Whether you handle your tax return yourself or engage a professional accountant, rushed tax returns filed at the last minute are more prone to errors, missed income, and overlooked expenses. These mistakes can result in delays, additional queries from HMRC, or even penalties.

HMRC may impose penalties if you submit an inaccurate return or document where the inaccuracy:

  • Results in tax being understated or overclaimed, and
  • Was caused by carelessness, deliberate actions, or deliberate concealment.

Filing early gives you ample time to review your return carefully, reducing the chances of errors and ensuring full compliance with HMRC requirements.

Peace of Mind

Perhaps the most underrated benefit of filing early is the peace of mind it brings. Knowing that your tax return has been completed and submitted well before the deadline eliminates the constant nagging worry that comes with procrastination. Filing early frees you from the last-minute rush, allowing you to avoid the anxiety of unexpected issues, such as missing documents or technical problems with online submissions.

Final Thoughts

Filing your self-assessment tax return early is more than just a task to check off your list; it’s a strategic step toward better financial and personal management. By filing early, you gain clarity on your tax situation, reduce the risk of errors, and avoid the stress and penalties associated with last-minute submissions. It also ensures you have access to your accountant’s expertise when it matters most and provides valuable time to plan your finances effectively.

The peace of mind that comes with early filing cannot be overstated. With your tax obligations resolved, you can focus on other priorities, confident that you’ve met your responsibilities in a timely and accurate manner. Don’t let the deadline sneak up on you. Take charge, file your tax return early, and reap the rewards of proactive financial planning.

Need more information on the benefits of filing tax return early?

Contact us today for efficient and
hassle-free assistance.

Susan Basnet
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