1 November 2018 - Due date for Corporation Tax due for the year ended 31 January 2018.
19 November 2018 - Filing deadline for the CIS300 monthly return for the month ended 5 November 2018.
19 November 2018 - CIS tax deducted for the month ended 5 November 2018 is payable by today.
1 December 2018 - Due date for Corporation Tax due for the year ended 29 February 2018.
19 December 2018 - Filing deadline for the CIS300 monthly return for the month ended 5 December 2018.
19 December 2018 - CIS tax deducted for the month ended 5 December 2018 is payable by today.
30 December 2018 - Deadline for filing 2017-18 self assessment tax returns online to include a claim for under payments to be collected via tax code in 2019-20.