Key Dates For The UK Tax Year 2020/2021


Aside from the main end of tax year date of 5th April, there are several other key dates throughout the year that both employed and self-employed workers need to be aware of.

Here we outline the key dates for the 2020/2021 tax year.


5 April 2020
End of the last tax year and deadline for claiming your PAYE tax refund for the 2015/16 tax year.

6 April 2020
First day of the new tax year 2020/21.

31 May 2020
Copies of 2019/20 P60 documents issued to employees.

6 July 2020
Copies of 2019/20 P11d documents issued to employees.
Last date for agreeing payment settlement agreements for 2018/19 if applicable.

6 April 2021
End of tax year 2020/21


31 January 2020 (midnight)
Deadline for online self-assessment tax returns for 2018/19 tax year.
Deadline for paying tax bill for tax year ending 5 April 2018/19.
Deadline for 1st payment on account for tax year 2019/20.

5 April 2020
Deadline for claiming tax overpaid for the 2015/16 tax year under self-assessment.

6 April 2020
First day of the new tax year 2020/21.
Time to gather detailed documents for your 2019/20 tax return.

31 May 2020
Self-employed people with employees must issue their 2019/20 P60 certificate.

31 July 2020
Deadline for 2nd payment on account for tax year ending 5 April 2020.

5 October 2020
Deadline to register with the HMRC if you became self-employed or started receiving income from property. You should submit a form CWF1 for self-employment or form SA1 for non-self-employed income to HMRC.

31 October 2020 (midnight)
Deadline for paper self-assessment returns for 2019/20 tax year.

30 December 2020
Deadline for online submission of self-assessment tax returns for year ending 5 April 2019 for HMRC to collect employment or pension income tax through PAYE tax codes if less than £3,000 is owed.

31 January 2021 (midnight)
Deadline for online self-assessment tax returns for 2019/20 tax year.
Deadline for paying tax bill for tax year ending 5 April 2019/20.

5 April 2021
End of tax year 2020/21.

– Submit your online return by 30 December if you want HMRC to automatically collect tax you owe from your wages and pension. You must be eligible.
– HMRC must receive a paper tax return by 31 January if you’re a trustee of a registered pension scheme or a non-resident company. You cannot send a return online.

Articles on this website are offered only for general informational and educational purposes. They are not offered as, and do not constitute, financial advice. You should not act or rely on any information contained in this website without first seeking advice from a professional.

You are now departing from the regulatory site of Finura. Finura is not responsible for the accuracy of the information contained within the linked site.



Other News

Tax Year End Planning Checklist For Individuals – 2023/24 Tax Year

As tax year end approaches, there is still time to make use of your available reliefs and allowances.

This tax year end planning checklist covers the main planning opportunities available to UK resident individuals and will hopefully help to inspire action to reduce tax for the 2023/24 tax year and to plan ahead for 2024/25.

Higher Rate Taxpaying Is A Growing Club

As tax rate band thresholds are changing, understanding the impact on high rate taxpayers and the economy is crucial.

5 Top Tips To Boost Your Pension Savings

It was recently revealed in the media that the amount we need to enjoy a ‘moderate’ retirement has increased by £8,000 per annum, a 38% increase, in just one year.