| Date | What’s Due |
| 1/03 | Corporation tax payment for year to 31/5/20 (unless quarterly instalments apply) |
| 19/03 | PAYE & NIC deductions, and CIS return and tax, for month to 5/03/21 (due 22/03 if you pay electronically) |
| 1/04 | Corporation tax payment for year to 30/6/20 (unless quarterly instalments apply) |
| 5/04 | End of 2020/21 tax year. Tax actions need to be taken by this date (see above). |
| 19/04 | PAYE & NIC deductions, and CIS return and tax, for month to 5/04/21 (due 22/04 if you pay electronically) |