November 2026: 1 November 2026 - Due date for Corporation Tax payable by companies with an accounting period ended 31 January 2026, unless the company is required to pay Corporation Tax by

1 October 2026 - Corporation Tax payment is due for companies with an accounting period ending 31 December 2025, unless the company is required to make quarterly instalment payments. 5 October 2026 -

1 September 2026 - Due date for corporation tax due for the year ended 30 November 2025. 19 September 2026 - PAYE and NIC deductions due for month ended 5 September 2026. (If you pay your tax

1 August 2026 - Due date for Corporation Tax due for the year ended 31 October 2025. 19 August 2026 - PAYE and NIC deductions due for the month ended 5 August 2026. (If you pay electronically, the

1 July 2026 - Due date for corporation tax due for the year ended 30 September 2025. 6 July 2026 - Complete and submit forms P11D return of benefits and expenses and P11D(b) return of Class 1A NICs

1 June 2026 - Due date for corporation tax due for the year ended 31 August 2025. 19 June 2026 - PAYE and NIC deductions due for month ended 5 June 2026. (If you pay your tax electronically the due

1 May 2026 - Due date for corporation tax due for the year ended 30 July 2025. 19 May 2026 - PAYE and NIC deductions due for month ended 5 May 2026. (If you pay your tax electronically the due date

1 April 2026 - Due date for corporation tax due for the year ended 30 June 2025.19 April 2026 - PAYE and NIC deductions due for month ended 5 April 2026 (If you pay your tax electronically the due

1 March 2026 - Due date for Corporation Tax due for the year ended 31 May 2025.2 March 2026 – Self-Assessment tax for 2024-25 paid after this date will incur a 5% surcharge unless liabilities are

1 February 2026 - Due date for Corporation Tax payable for the year ended 30 April 2025.19 February 2026 - PAYE and NIC deductions due for month ended 5 February 2026. (If you pay your tax