Tax Diary March/April 2019

1 March 2019 – Due date for Corporation Tax due for the year ended 31 May 2018.

2 March 2019 – Self assessment tax for 2017/18 paid after this date will incur a 5% surcharge.

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

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

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

1 April 2019 – Due date for Corporation Tax due for the year ended 30 June 2018.

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

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

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

30 April 2019 – 2017-18 tax returns filed after this date will be subject to an additional £10 per day late filing penalty.

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