There are important dates in the UK Tax year to keep a track of , here is a handy reminder:
| Dates 2023-24 | |
| April 5th | 2022-23 Personal Tax year ends |
| April 6th | 2023-24 Personal Tax year starts |
| April 19th | Deadline to submit PAYE final RTI report 2022-23 |
| May 3rd | Deadline to submit P46 (Car) to report new cars provided during quarter to 5th April 2023 |
| May 31st | Deadline for forms P60 to be issued to employees |
| July 6th | Deadline for P11D, P11D(b) Class 1A NICs to HMRC and employers must supply relevant employees with P11D Information for 2022-23 |
| July 31st | Second payment on account of self-assessed income tax and Class 4 NIC for 2022-23 due |
| August 3rd | Deadline to submit P46 (Car) to report new cars provided during quarter to 5th July 2023 |
| October 5th | Deadline for any person chargeable to income tax or CGT for 2022-23 who has not received a notice to file assessment return must notify HMRC |
| October 31st | Deadline for paper submission of Self Assessment Tax Return for year ended 5th April 2023 |
| November 2nd | Deadline to submit P46 (Car) to report new cars provided during quarter to 5th October 2023 |
| January 31st | Deadline for filing Self Assessment and Capital Gains Tax & Payment of Self Assessment Tax and first Payment on Account due |
| February 2nd | Deadline to submit P46 (Car) to report new cars provided during quarter to 5th January 2023 |
| April 5th | 2023-24 Personal Tax year ends |