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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 an item 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 to log on.

October 2018

Wednesday 31 Deadline for submitting 'paper' 2017/18 self assessment returns.

This deadline is relevant to individuals who need to complete a self assessment tax return for 2017/18 and wish to file the return in a 'paper' form. Self assessment returns submitted after this date must be submitted electronically.

Please note that this deadline is not relevant if we are going to submit an online return for you or you are going to deal with the completion of an online return yourself. The deadline for submission of online returns is 31 January 2019.

If we are already dealing with this matter on your behalf you need take no action.

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.

This deadline is only relevant for those individuals who complete a 'paper' self assessment tax return and who are employees. Where you have an underpayment you may request that HMRC collect the tax outstanding by making an adjustment to your tax code for the year 2019/20.

Please note that where your return is submitted online then the filing deadline for 'coding out' is 30 December 2018.

If we are already dealing with this matter on your behalf you need take no action.

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.

This deadline is relevant for those individuals who complete a self assessment tax return online and who are employees. Where you have an underpayment you may request that HMRC collect the tax outstanding by making an adjustment to your tax code for the year 2019/20.

If we are already dealing with this matter on your behalf you need take no action.