Who Needs to File?
If you earned more than £1,000 from self-employment during the 2025/26 tax year, you must file a Self Assessment tax return with HMRC. The deadline for online returns is 31 January 2027.
Key Deadlines
- 5 April 2026: End of the 2025/26 tax year
- 31 October 2026: Paper return deadline
- 31 January 2027: Online return deadline and payment due
What You Can Claim
You can deduct legitimate business expenses from your income before calculating your tax. This includes office costs, travel, phone bills, and professional subscriptions. Keep all receipts for at least 5 years.
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