It is crucial to stay on top of key tax dates to keep your financial affairs in order. Here’s a friendly reminder of the important tax deadlines this year.
2025 Tax Deadlines & Events By Month
January 2025
- 1 January:
- Corporation Tax Payment: Due for companies with an accounting period ending 31 March 2024 (unless quarterly instalments apply).
- 19 January:
- PAYE & NIC Deductions: Payment for the month ending 5 January 2025 is due.
- Construction Industry Scheme (CIS) Return and Tax: Submission and payment for the month ending 5 January 2025 are due.
- 31 January:
- Self-Assessment Tax Return: Deadline for online submission for the 2023/24 tax year.
- Balancing Payment: Due for the 2023/24 tax year.
- First Payment on Account: Due for the 2024/25 tax year.
February 2025
- 1 February:
- Corporation Tax Payment: Due for companies with an accounting period ending 30 April 2024 (unless quarterly instalments apply).
- 19 February:
- PAYE & NIC Deductions: Payment for the month ending 5 February 2025 is due.
- CIS Return and Tax: Submission and payment for the month ending 5 February 2025 are due.
- 28 February:
- Late Payment Penalty: A 5% penalty is imposed on any 2023/24 tax still unpaid at this date unless a payment plan has been agreed with HMRC.
March 2025
- 1 March:
- Corporation Tax Payment: Due for companies with an accounting period ending 31 May 2024 (unless quarterly instalments apply).
- 19 March:
- PAYE & NIC Deductions: Payment for the month ending 5 March 2025 is due.
- CIS Return and Tax: Submission and payment for the month ending 5 March 2025 are due.
April 2025
- 1 April:
- Corporation Tax Payment: Due for companies with an accounting period ending 30 June 2024 (unless quarterly instalments apply).
- 5 April:
- End of the 2024/25 Tax Year: Ensure all tax planning actions are completed by this date.
- 6 April:
- Start of the 2025/26 Tax Year.
- 19 April:
- PAYE & NIC Deductions: Payment for the month ending 5 April 2025 is due.
- CIS Return and Tax: Submission and payment for the month ending 5 April 2025 are due.
- 30 April:
- Annual Tax on Enveloped Dwellings (ATED): Returns and payments for the chargeable period starting 1 April 2025 are due.
May 2025
- 1 May:
- Corporation Tax Payment: Due for companies with an accounting period ending 31 July 2024 (unless quarterly instalments apply).
- 19 May:
- PAYE & NIC Deductions: Payment for the month ending 5 May 2025 is due.
- CIS Return and Tax: Submission and payment for the month ending 5 May 2025 are due.
- 31 May:
- P60s: Deadline for employers to issue P60s to employees for the 2024/25 tax year.
June 2025
- 1 June:
- Corporation Tax Payment: Due for companies with an accounting period ending 31 August 2024 (unless quarterly instalments apply).
- 19 June:
- PAYE & NIC Deductions: Payment for the month ending 5 June 2025 is due.
- CIS Return and Tax: Submission and payment for the month ending 5 June 2025 are due.
July 2025
- 1 July:
- Corporation Tax Payment: Due for companies with an accounting period ending 30 September 2024 (unless quarterly instalments apply).
- 5 July:
- PAYE Settlement Agreements: Last date to agree on PAYE settlement agreements for the 2024/25 tax year.
- 6 July:
- P11D and P11D(b) Forms: Deadline for employers to submit forms P11D and P11D(b) for the 2024/25 tax year.
- Share Schemes: Deadline to notify HMRC of shares and options awarded to employees.
- 19 July:
- PAYE & NIC Deductions: Payment for the month ending 5 July 2025 is due.
- CIS Return and Tax: Submission and payment for the month ending 5 July 2025 are due.
- 31 July:
- Second Payment on Account: Second payment on account due for the 2024/25 tax year.
August 2025
- 1 August:
- Corporation Tax Payment: Due for companies with an accounting period ending 31 October 2024 (unless quarterly instalments apply).
- 19 August:
- PAYE & NIC Deductions: Payment for the month ending 5 August 2025 is due.
- CIS Return and Tax: Submission and payment for the month ending 5 August 2025 are due.
September 2025
- 1 September:
- Corporation Tax Payment: Due for companies with an accounting period ending 30 November 2024 (unless quarterly instalments apply).
- 19 September:
- PAYE & NIC Deductions: Payment for the month ending 5 September 2025 is due.
- CIS Return and Tax: Submission and payment for the month ending 5 September 2025 are due.
- 30 September:
- Filing Deadline for Forms CT61: For quarter ending 30 September 2025.
October 2025
- 1 October:
- Corporation Tax Payment: Due for companies with an accounting period ending 31 December 2024 (unless quarterly instalments apply).
- 5 October:
- Register for Self-Assessment: Deadline for individuals who must file a self-assessment tax return for the first time for the 2024/25 tax year.
- 19 October:
- PAYE & NIC Deductions: Payment for the month ending 5 October 2025 is due.
- CIS Return and Tax: Submission and payment for the month ending 5 October 2025 are due.
- 31 October:
- Paper Tax Return Filing Deadline: For the 2024/25 tax year (if submitting a paper return).
November 2025
- 1 November:
- Corporation Tax Payment: Due for companies with an accounting period ending 31 January 2025 (unless quarterly instalments apply).
- 19 November:
- PAYE & NIC Deductions: Payment for the month ending 5 November 2025 is due.
- CIS Return and Tax: Submission and payment for the month ending 5 November 2025 are due.
December 2025
- 1 December:
- Corporation Tax Payment: Due for companies with an accounting period ending 28 February 2025 (unless quarterly instalments apply).
- 19 December:
- PAYE & NIC Deductions: Payment for the month ending 5 December 2025 is due.
- CIS Return and Tax: Submission and payment for the month ending 5 December 2025 are due.
- 30 December:
- Online Self-Assessment Filing Deadline: For individuals who want tax collected through their PAYE code (applicable for income under £3,000).
General Notes for Annual Updates
- This calendar is based on typical UK tax deadlines. Some specific dates may vary based on weekends, public holidays, or changes to tax rules.
- Always verify deadlines with HMRC or one of our tax advisors each year to ensure compliance.
Need more information?
At A&C Chartered Accountants, we’re not just accountants; we’re your partners in success. Based in Manchester, our experienced team handles everything from managing limited company and sole trader accounts to expertly navigating tax returns. Beyond financials, we play a crucial role in driving your business’s growth, strategically steering it towards success with confidence and clarity.
To get in touch, fill out a contact form or call on 0161 962 1855.