Tax Calendar 2023/2024
| December 2023 | |
| 19/22 | PAYE/NIC, student loan and CIS deductions due for month to 5/12/2023 |
| 30 | Deadline for 2022/23 self assessment online returns to be filed if you are an employee and want tax underpaid to be collected by adjustment to your 2024/25 PAYE code (for underpayments of up to £3000 only) |
| January 2024 | |
| 1 | Due date for payment of Corporation Tax for the year ended 31 March 2023 |
| 14 | Return and payment of CT61 tax due for quarter to 31 December 2023 |
| 19/22 | PAYE/NIC, student loan and CIS deductions due for month to 5/1/2024 or quarter 3 of 2023/24 for small employers |
| 31 | Deadline for filing 2023 Self Assessment personal, partnership and trust Tax Returns -
£100 first penalty for late filing even if no tax is due or tax due is paid on time Balancing self assessment payment due for 2022/23 Capital gains tax payment due for 2022/23 First self assessment payment on account due for 2023/24 Interest accrues on all late payments Half yearly Class 2 NIC payment due Further penalty of 5% of tax due or £300, whichever is greater for personal tax returns still not filed for 2021/22 5% penalty for late payment of tax unpaid for 2021/22 self assessment |
| February 2024 | |
| 2 | Last day for car change notifications in the quarter to 5 January - Use P46 Car |
| 19/22 | PAYE/NIC, student loan and CIS deductions due for month to 5/2/2024 |
| 28 | Talk to us about year end and pre-budget planning First 5% penalty surcharge on any 2022/23 outstanding tax due on 31 January 2024 still unpaid |
| March 2024 | |
| 19/22 | PAYE/NIC, student loan and CIS deductions due for month to 5/3/2024 |
| 31 | Last minute tax planning for the 2023/24 tax year. Ensure you use up all exemptions to which you are entitled |
| April 2024 | |
| 5 | End of 2023/24 tax year. Last day to use up your annual exemptions for capital gains tax, inheritance tax and ISA's |
| 14 | Return and payment of CT61 tax due for quarter to 31 March 2024 |
| 19 | Deadline for Employers' 2023/24 end of year PAYE Returns (P35, P14, P38 & P38A). Penalties for non submission. |
| 19 | PAYE/NIC, student loan and CIS deductions due for month to 5/4/2024 or quarter 4 of 2023/24 for small employers. Interest will run on any unpaid PAYE/NIC for the tax year 2023/24 |
| 30 | Additional daily penalties of £10 per day up to a maximum of £900 for failing to file self assessment tax return due on 31 January 2024 |
