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Tax Calendar

The red text indicates an entry relevant to companies and employers, black refers to personal tax, and bold indicates an important item. Click on a date to find out more detail of how it may affect you.

If you would like to receive email reminders before these key tax dates from our taxREMINDER system, then click here to register on our website. If you have already registered and would like to change your taxREMINDER options then click here to log on.

October 2018
Wednesday 31 Deadline for submitting 'paper' 2017/18 self assessment returns.
Wednesday 31 Deadline for submission of 2017/18 self assessment returns if you require HMRC to compute your tax liability and/or if tax underpaid is to be collected by adjustment to your 2019/20 PAYE code.
November 2018
Friday 2 Deadline for submitting P46(car) for employees whose car/fuel benefits changed during the quarter to 5th October 2018.
Monday 19 PAYE, Student loan and CIS deductions are due for the month to 5th November 2018.
December 2018
Saturday 1 Advisory Fuel Rates.
Wednesday 19 PAYE, Student loan and CIS deductions are due for the month to 5th December 2018.
Sunday 30 Online filing deadline for submitting 2017/18 self assessment return if you require HMRC to collect any underpaid tax by making an adjustment to your 2019/20 tax code.

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