1 March 2021 - Due date for Corporation Tax due for the year ended 31 May 2020.

2 March 2021 – Self-assessment tax for 2019/20 paid after this date will incur a 5% surcharge.

19 March 2021 - PAYE and NIC deductions due for month ended 5 March 2021. (If you pay your tax electronically the due date is 22 March 2021)

19 March 2021 - Filing deadline for the CIS300 monthly return for the month ended 5 March 2021. 

19 March 2021 - CIS tax deducted for the month ended 5 March 2021 is payable by today.

1 April 2021 - Due date for Corporation Tax due for the year ended 30 June 2020.

19 April 2021 - PAYE and NIC deductions due for month ended 5 April 2021. (If you pay your tax electronically the due date is 22 April 2021)

19 April 2021 - Filing deadline for the CIS300 monthly return for the month ended 5 April 2021. 

19 April 2021 - CIS tax deducted for the month ended 5 April 2021 is payable by today.

30 April 2021 – 2019-20 tax returns filed after this date will be subject to an additional £10 per day late filing penalty.