Self-Assessment Tax Return Deadlines 2024-25: Complete Calendar
Missing self-assessment deadlines triggers automatic penalties. Know all key dates: 31 October for paper, 31 January for online.
Advertisement
Register for self-assessment by 5 October after the tax year. Paper returns are due 31 October. Online returns are due 31 January 2026 for 2024-25. Tax payment is also due 31 January, with a second payment on account required by 31 July. Late filing attracts an automatic £100 penalty.
Disclaimer: This article is for informational purposes only and does not constitute financial, tax, or legal advice. Tax laws change frequently — consult a qualified tax professional or official government resources for advice specific to your situation.
Advertisement
Related Articles
Try the United Kingdom Tax Calculator
Calculate your exact United Kingdom income tax for 2024-25 in seconds — free & accurate.
Open Calculator