31 JANUARY 2021
Deadline for 1st payment on account for 2020/21 tax year.
5 APRIL 2021
Deadline for claiming tax overpaid for the 2016/17 tax year under Self-Assessment
6 APRIL 2021
First day of the new tax year 2021/22.
31 MAY 2021
Last date to give employees a form P60 for 2020/21.
6 JULY 2021
Copies of 2020/21 P11d documents issued to employees.
31 JULY 2021
Deadline for 2nd payment on account for tax year ending 5 April 2021.
5 OCTOBER 2021
Deadline to register with the HMRC if you became self-employed or started receiving income from property in the previous year.
31 OCTOBER 2021
Deadline for paper Self-Assessment Returns for 2020/21 tax year.
30 DECEMBER 2021
Deadline for online submission of Self-Assessment Returns for year ending 5 April 2021 for HMRC to collect tax through PAYE tax codes where they owe less than £3,000.
31 JANUARY 2022
Deadline for online self-assessment tax returns for 2020/21 tax year.
Deadline for paying tax bill for tax year ending 5 April 2021.
5 APRIL 2022
End of tax year 2021/22.