1 September 2017 - Due date for Corporation Tax due for the year ended 30 November 2016.

19 September 2017 - PAYE and NIC deductions due for month ended 5 September 2017. (If you pay your tax electronically the due date is 22 September 2017)

19 September 2017 - Filing deadline for the CIS300 monthly return for the month ended 5 September 2017.

19 September 2017 - CIS tax deducted for the month ended 5 September 2017 is payable by today.

1 October 2017 - Due date for Corporation Tax due for the year ended 31 December 2016.

19 October 2017 - PAYE and NIC deductions due for month ended 5 October 2017. (If you pay your tax electronically the due date is 22 October 2017.)

19 October 2017 - Filing deadline for the CIS300 monthly return for the month ended 5 October 2017.

19 October 2017 - CIS tax deducted for the month ended 5 October 2017 is payable by today.

31 October 2017 – Latest date you can file a paper version of your 2017 Self Assessment tax return.