Self Assessment Key dates |
Deadline |
| First day of the new tax year 2020/21. Time to gather detailed documents for your 2019/20 tax return. |
6 April 2020 |
| Deadline for 2nd payment on account for tax year ending 5 April 2020. | 31 July 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. | 5 October 2020 |
| Deadline for paper self-assessment returns for 2018/19 tax year. | 31 October 2020(Midnight) |
| 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 tax codes if less than £3,000 is owed. | 30 December 2020 |
| 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. |
31 October 2020(Midnight) |
| End of tax year 20/21 | 5 April 2021 |
PAYE Key dates |
Deadline |
| End of the last tax year and deadline for claiming your PAYE tax refund for the 2015/16 tax year. | 5 April 2020 |
| First day of the new tax year 2020/21 | 6 April 2020 |
| Copies of 2019/20 P60 documents issued to employees | 31 May 2020 |
| Copies of 2019/20 P11D documents issued to employees. Last date for agreeing payment settlement agreements for 2018/19 if applicable. |
6 July 2020 |
| End of tax year 20/21 | 6 April 2021 |