| Date | What’s Due |
| 01/03 | Corporation tax payment for year to 31/05/22 (unless quarterly instalments apply) |
| 19/03 | PAYE & NIC deductions, and CIS return and tax, for month to 05/03/23 (due 22/03 if you pay electronically) |
| 01/04 | Corporation tax payment for year to 30/6/22 (unless quarterly instalments apply) |
| 05/04 | End of 2022/23 tax year – many tax planning actions need to have been done by this date. |
| 06/04 | Start of the 2023/24 tax year. |
| 19/04 | PAYE & NIC deductions, and CIS return and tax, for month to 5/04/23 (due 22/04 if you pay electronically) |