| Date | What’s Due |
| 1 December | Corporation Tax for year to 28/02/2026, unless quarterly instalments apply |
| 19 December | PAYE & NIC deductions, and CIS return and tax, for month to 05/12/2026 (due 22/12 if you pay electronically) |
| 30 December | Deadline for filing 2025/26 tax return online if you wish to request that HMRC collect outstanding tax via your PAYE tax code. |
| 1 January | Corporation Tax for year to 31/03/2026, unless quarterly instalments apply |
| 19 January | PAYE & NIC deductions, and CIS return and tax, for month to 05/01/2027 (due 22/01 if you pay electronically) |
| 31 January | Deadline for filing 2025/26 self-assessment tax return online and paying your outstanding tax for 2025/26 and first payment on account of 2026/27 tax. |
not all accountants are grey...
signup to our newsletter
