Tax Diary September/October 2019

1 September 2019 – Due date for Corporation Tax due for the year ended 30 November 2018.

19 September 2019 – PAYE and NIC deductions due for month ended 5 September 2019. (If you pay your tax electronically the due date is 22 September 2019)

19 September 2019 – Filing deadline for the CIS300 monthly return for the month ended 5 September 2019. 

19 September 2019 – CIS tax deducted for the month ended 5 September 2019 is payable by today.

1 October 2019 – Due date for Corporation Tax due for the year ended 31 December 2018.

19 October 2019 – PAYE and NIC deductions due for month ended 5 October 2019. (If you pay your tax electronically the due date is 22 October 2019.)

19 October 2019 – Filing deadline for the CIS300 monthly return for the month ended 5 October 2019. 

19 October 2019 – CIS tax deducted for the month ended 5 October 2019 is payable by today.

31 October 2019 – Latest date you can file a paper version of your 2019 self-assessment tax return.



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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.



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