
Understanding whether you need to complete a tax return in the UK can be complex, especially with recent changes in tax regulations. This article provides an updated guide for the 2024/25 and 2025/26 tax years to help you determine your obligations.
Who Needs to File a Tax Return?
You are required to file a Self Assessment tax return if any of the following apply:
- Self-Employment or Business Income:
- You are self-employed and earned more than £1,000.
- You are part of a business partnership.
- High Income:
- You earned over £150,000 in taxable income during the tax year ending 5 April 2024. However, starting from the 2024/25 tax year, high earners with simple tax affairs (e.g., only PAYE income) are no longer required to file a return.
- Untaxed Income:
- You received income not taxed at source, such as rental income, dividends, or foreign income.
- Capital Gains:
- You disposed of assets and need to report Capital Gains Tax.
- High Income Child Benefit Charge:
- You or your partner earned over £50,000 and claimed Child Benefit.
- Other Situations:
- You need to claim tax reliefs or allowances.
- HMRC has sent you a notice requiring you to file.
Key Deadlines
- Paper Returns: Must be submitted by 31 October following the end of the tax year.
- Online Returns: Deadline is 31 January of the following year (e.g., for the 2024/25 tax year, submit by 31 January 2026).
- Registration for Self-Assessment: Notify HMRC by 5 October if you need to file but have not done so before.
Changes Effective April 2025
The UK government has introduced new regulations requiring additional information on tax returns starting from the 2025/26 tax year:
- Business Start and End Dates:
- Mandatory reporting of self-employment starts and end dates for improved tracking of business activities.
- Simplified Filing for High Earners:
- High-income individuals with straightforward PAYE-taxed earnings no longer need to file returns unless other criteria apply.
Penalties for Missing Deadlines
Failing to meet deadlines can result in penalties:
- Late submissions incur fines even if no tax is due.
- You may appeal penalties if you have a reasonable excuse.
How to Check Your Filing Requirement
If you’re unsure whether you need to file a return, use HMRC‘s online tool or consult a professional advisor. The tool is available at gov.uk.
By staying informed about your obligations and meeting deadlines, you can avoid unnecessary penalties and ensure compliance with UK tax laws.