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.