Tax Diary September/October 2019

1 October 2018 – Due date for Corporation Tax due for the year ended 31 December 2017.19 October 2018 – PAYE and NIC deductions due for month ended 5 October 2018. (If you pay your tax electronically the due date is 22 October 2018.)19 October 2018 – Filing deadline for the CIS300 monthly return for the month ended 5 October 2018.19 October 2018 – CIS tax deducted for the month ended 5 October 2018 is payable by today.31 October 2018 – Latest date you can file a paper version of your 2018 self-assessment tax return.1 November 2018 – Due date for Corporation Tax due for the year ended 31 January 2018.19 November 2018 – PAYE and NIC deductions due for month ended 5 November 2018. (If you pay your tax electronically the due date is 22 November 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.