Tax Diary

1 March 2024 – Due date for Corporation Tax due for the year ended 31 May 2023.

2 March 2024 – Self-Assessment tax for 2022-23 paid after this date will incur a 5% surcharge unless liabilities are cleared by 1 April 2024, or an agreement has been reached with HMRC under their time to pay facility by the same date.

19 March 2024 – PAYE and NIC deductions due for month ended 5 March 2024 (If you pay your tax electronically the due date is 22 March 2024).

19 March 2024 – Filing deadline for the CIS300 monthly return for the month ended 5 March 2024. 

19 March 2024 – CIS tax deducted for the month ended 5 March 2024 is payable by today.

1 April 2024 – Due date for corporation tax due for the year ended 30 June 2023.

19 April 2024 – PAYE and NIC deductions due for month ended 5 April 2024. (If you pay your tax electronically the due date is 22 April 2024).

19 April 2024 – Filing deadline for the CIS300 monthly return for the month ended 5 April 2024. 

19 April 2024 – CIS tax deducted for the month ended 5 April 2024 is payable by today.

30 April 2024 – 2022-23 tax returns filed after this date will be subject to an additional £10 per day late filing penalty for a maximum of 90 days.

1 February 2024 – Due date for Corporation Tax payable for the year ended 30 April 2023.

19 February 2024 – PAYE and NIC deductions due for month ended 5 February 2024. (If you pay your tax electronically the due date is 22 February 2024)

19 February 2024 – Filing deadline for the CIS300 monthly return for the month ended 5 February 2024. 

19 February 2024 – CIS tax deducted for the month ended 5 February 2024 is payable by today.

1 March 2024 – Due date for Corporation Tax due for the year ended 31 May 2023.

2 March 2024 – Self-Assessment tax for 2022-23 paid after this date will incur a 5% surcharge unless liabilities are cleared by 1 April 2024, or an agreement has been reached with HMRC under their time to pay facility by the same date.

19 March 2024 – PAYE and NIC deductions due for month ended 5 March 2024 (If you pay your tax electronically the due date is 22 March 2024).

19 March 2024 – Filing deadline for the CIS300 monthly return for the month ended 5 March 2024.

19 March 2024 – CIS tax deducted for the month ended 5 March 2024 is payable by today.

1 January 2024 – Due date for Corporation Tax due for the year ended 31 March 2023.

19 January 2024 – PAYE and NIC deductions due for month ended 5 January 2024. (If you pay your tax electronically the due date is 22 January 2024).

19 January 2024 – Filing deadline for the CIS300 monthly return for the month ended 5 January 2024. 

19 January 2024 – CIS tax deducted for the month ended 5 January 2024 is payable by today.

31 January 2024 – Last day to file 2022-23 self-assessment tax returns online.

31 January 2024 – Balance of self-assessment tax owing for 2022-23 due to be settled on or before today unless you have elected to extend this deadline by formal agreement with HMRC. Also due is any first payment on account for 2023-24.

1 February 2024 – Due date for Corporation Tax payable for the year ended 30 April 2023.

19 February 2024 – PAYE and NIC deductions due for month ended 5 February 2024. (If you pay your tax electronically the due date is 22 February 2024)

19 February 2024 – Filing deadline for the CIS300 monthly return for the month ended 5 February 2024. 

19 February 2024 – CIS tax deducted for the month ended 5 February 2024 is payable by today.
 

1 November 2023 – Due date for Corporation Tax due for the year ended 31 January 2023.

19 November 2023 – PAYE and NIC deductions due for month ended 5 November 2023. (If you pay your tax electronically the due date is 22 November 2023.)

19 November 2023 – Filing deadline for the CIS300 monthly return for the month ended 5 November 2023. 

19 November 2023 – CIS tax deducted for the month ended 5 November 2023 is payable by today.

1 December 2023 – Due date for Corporation Tax payable for the year ended 28 February 2023.

19 December 2023 – PAYE and NIC deductions due for month ended 5 December 2023. (If you pay your tax electronically the due date is 22 December 2023).

19 December 2023 – Filing deadline for the CIS300 monthly return for the month ended 5 December 2023. 

19 December 2023 – CIS tax deducted for the month ended 5 December 2023 is payable by today.

30 December 2023 – Deadline for filing 2022-23 self-assessment tax returns online to include a claim for under payments to be collected via tax code in 2024-25.

1 October 2023 – Due date for Corporation Tax due for the year ended 31 December 2022.

19 October 2023 – PAYE and NIC deductions due for month ended 5 October 2023. (If you pay your tax electronically the due date is 22 October 2023.)

19 October 2023 – Filing deadline for the CIS300 monthly return for the month ended 5 October 2023. 

19 October 2023 – CIS tax deducted for the month ended 5 October 2023 is payable by today.

31 October 2023 – Latest date you can file a paper version of your 2022-23 self-assessment tax return.

1 November 2023 – Due date for Corporation Tax due for the year ended 31 January 2023.

19 November 2023 – PAYE and NIC deductions due for month ended 5 November 2023. (If you pay your tax electronically the due date is 22 November 2023.)

19 November 2023 – Filing deadline for the CIS300 monthly return for the month ended 5 November 2023. 

19 November 2023 – CIS tax deducted for the month ended 5 November 2023 is payable by today.

1 September 2023 – Due date for corporation tax due for the year ended 30 November 2022.

19 September 2023 – PAYE and NIC deductions due for month ended 5 September 2023. (If you pay your tax electronically the due date is 22 September 2023)

19 September 2023 – Filing deadline for the CIS300 monthly return for the month ended 5 September 2023. 

19 September 2023 – CIS tax deducted for the month ended 5 September 2023 is payable by today.

1 October 2023 – Due date for Corporation Tax due for the year ended 31 December 2022.

19 October 2023 – PAYE and NIC deductions due for month ended 5 October 2023. (If you pay your tax electronically the due date is 22 October 2023.)

19 October 2023 – Filing deadline for the CIS300 monthly return for the month ended 5 October 2023. 

19 October 2023 – CIS tax deducted for the month ended 5 October 2023 is payable by today.

31 October 2023 – Latest date you can file a paper version of your 2022-23 self-assessment tax return.

1 August 2023 – Due date for corporation tax due for the year ended 31 October 2022.

19 August 2023 – PAYE and NIC deductions due for month ended 5 August 2023. (If you pay your tax electronically the due date is 22 August 2023)

19 August 2023 – Filing deadline for the CIS300 monthly return for the month ended 5 August 2023. 

19 August 2023 – CIS tax deducted for the month ended 5 August 2023 is payable by today.

1 September 2023 – Due date for corporation tax due for the year ended 30 November 2022.

19 September 2023 – PAYE and NIC deductions due for month ended 5 September 2023. (If you pay your tax electronically the due date is 22 September 2023)

19 September 2023 – Filing deadline for the CIS300 monthly return for the month ended 5 September 2023. 

19 September 2023 – CIS tax deducted for the month ended 5 September 2023 is payable by today.
 

1 July 2023 – Due date for corporation tax due for the year ended 30 September 2022.

6 July 2023 – Complete and submit forms P11D return of benefits and expenses and P11D(b) return of Class 1A NICs.

19 July 2023 – Pay Class 1A NICs (by the 22 July 2023 if paid electronically).

19 July 2023 – PAYE and NIC deductions due for month ended 5 July 2023. (If you pay your tax electronically the due date is 22 July 2023).

19 July 2023 – Filing deadline for the CIS300 monthly return for the month ended 5 July 2023. 

19 July 2023 – CIS tax deducted for the month ended 5 July 2023 is payable by today.

1 August 2023 – Due date for corporation tax due for the year ended 31 October 2022.

19 August 2023 – PAYE and NIC deductions due for month ended 5 August 2023. (If you pay your tax electronically the due date is 22 August 2023)

19 August 2023 – Filing deadline for the CIS300 monthly return for the month ended 5 August 2023. 

19 August 2023 – CIS tax deducted for the month ended 5 August 2023 is payable by today.

1 June 2023 – Due date for corporation tax due for the year ended 31 August 2022.

19 June 2023 – PAYE and NIC deductions due for month ended 5 June 2023. (If you pay your tax electronically the due date is 22 June 2023).

19 June 2023 – Filing deadline for the CIS300 monthly return for the month ended 5 June 2023. 

19 June 2023 – CIS tax deducted for the month ended 5 June 2023 is payable by today.

1 July 2023 – Due date for corporation tax due for the year ended 30 September 2022.

6 July 2023 – Complete and submit forms P11D return of benefits and expenses and P11D(b) return of Class 1A NICs.

19 July 2023 – Pay Class 1A NICs (by the 22 July 2023 if paid electronically).

19 July 2023 – PAYE and NIC deductions due for month ended 5 July 2023. (If you pay your tax electronically the due date is 22 July 2023).

19 July 2023 – Filing deadline for the CIS300 monthly return for the month ended 5 July 2023. 

19 July 2023 – CIS tax deducted for the month ended 5 July 2023 is payable by today.

1 May 2023 – Due date for corporation tax due for the year ended 30 July 2022.

19 May 2023 – PAYE and NIC deductions due for month ended 5 May 2023. (If you pay your tax electronically the due date is 22 May 2023).

19 May 2023 – Filing deadline for the CIS300 monthly return for the month ended 5 May 2023. 

19 May 2023 – CIS tax deducted for the month ended 5 May 2023 is payable by today.

31 May 2023 – Ensure all employees have been given their P60s for the 2022/23 tax year.

1 June 2023 – Due date for corporation tax due for the year ended 31 August 2022.

19 June 2023 – PAYE and NIC deductions due for month ended 5 June 2023. (If you pay your tax electronically the due date is 22 June 2023).

19 June 2023 – Filing deadline for the CIS300 monthly return for the month ended 5 June 2023. 

19 June 2023 – CIS tax deducted for the month ended 5 June 2023 is payable by today.