1 November 2017 - Due date for corporation tax due for the year ended 31 January 2017.

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

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

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

1 December 2017 - Due date for corporation tax due for the year ended 29 February 2017.

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

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

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

30 December 2017 - Deadline for filing 2016-17 self-assessment tax returns online to include a claim for under payments to be collected via tax code in 2018-19.