Tax Calendar 2023/2024

October 2023
01	HMRCs Advisory Fuel Rates (published in September) must be implemented by employers by the date
05	- The deadline for individuals, trusts and partnerships to notify HMRC of the need to register for Self-Assessment (2022/23 tax year)
15	- If a US expatriate had a 2022 federal tax return extension agreed, 15 October 2023 is the deadline for filing. Note that 15 October 2023 is a Sunday and the due date is delayed until the next business day (the 16th)
19	- Deadline for sending the Employer Payment Summary (EPS) for tax month ending 05 October 2023 - Deadline for paying HMRC all PAYE, NICs, Student Loans and CIS deductions (less child-related statutory payments) if paying by a non-electronic method
22	- Deadline for paying HMRC all PAYE, NICs, Student Loans and CIS deductions (less child-related statutory payments) if paying electronically. 22 October 2023 is a Sunday and HMRC must have cleared funds on or before this date so ensure you submit by Friday the 20th
31	- The filing deadline for paper Self-Assessment tax returns (individuals, trusts and partnerships
November 2023
December 2023
November 2023
01	Due date for payment of Corporation Tax for the year ended 31 March 2022
14	Return and payment of CT61 tax due for quarter to 31 December 2022
19	PAYE/NIC, student loan and CIS deductions due for month to 5/1/2023 or quarter 3 of 2022/23 for small employers
22	PAYE/NIC, student loan and CIS deductions due for month to 5/1/2023 or quarter 3 of 2022/23 for small employers
31	Deadline for filing 2022 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 2021/22 Capital gains tax payment due for 2021/22 First self assessment payment on account due for 2022/23 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 2020/21 5% penalty for late payment of tax unpaid for 2020/21 self assessment
December 2023
01	Individual taxpayers who have not paid their remaining tax and NI liabilities for 2020/21 by this date face a further penalty of greater than 5% of the tax showing as due on the return. Individual taxpayers who have not filed their 2020/21 self-assessment tax return by this date face a further penalty of the greater of £300 and 5% of the tax showing as due on the return.
02	Employers must submit Form P46 (Car) to report cars first provided to employees during the quarter to 5 January 2023.
14	Last day for employees to apply for deferment of primary class 1 NIC for 2022/23.
January 2024
19	PAYE/NIC, student loan and CIS deductions due for month to 5/3/2023
22	PAYE/NIC, student loan and CIS deductions due for month to 5/3/2023
31	Last minute tax planning for the 2022/23 tax year. Ensure you use up all exemptions to which you are entitled
February 2024
05	Last opportunity to utilise income tax personal allowances, annual ISA allowances, and exemptions for CGT and IHT for 2022/23. Last day to claim exemption from Class 4 NIC for 2022/23 where earnings are also subject to Class 1 NIC. Final day for claims for 2018/19 relating to personal allowances, remittance basis, terminal loss relief, overlap relief, carry-forward of trading losses, and capital losses. The deadline to claim an asset became of negligible value or loan to a trader became unrecoverable in 2020/21.
11	Last day to set up a variable direct debit to pay PAYE for payment this month.
19	Employers must make final RTI payroll report for 2022/23 using FPS or EPS.
22	PAYE, NIC, and student loan deductions are to be paid to HMRC by electronic means for the month of 5 April 2023, unless the employer has set up a direct debit so HMRC can collect the amounts due.
30	Daily £10 late filing penalties start to apply to outstanding 2021/22 self-assessment returns. Any IHT due on lifetime transfers between 6 April and 30 September 2022 is due. ATED returns and ATED relief declarations must be filed for 2023/24. The ATED charge must be paid for 2023/24.
01	Where the taxpayer has not submitted their 2021/22 self-assessment tax return by midnight the following penalties apply: for online filing - £10 daily penalties for filing on paper - the greater of £300 or 5% of the tax showing on the return.
March 2024
01	Where the taxpayer has not submitted their 2021/22 self-assessment tax return by midnight the following penalties apply: for online filing - £10 daily penalties for filing on paper - the greater of £300 or 5% of the tax showing on the return.
03	Employers must submit the form P46 (Car) to HMRC for employees who have been provided with a company car for the first time during the quarter to 5 April 2023.
31	Employers must provide a form P60 for 2022/23 to those employees who they employed on 5 April 2023. Returns under the Crown Dependencies and Overseas Territories reporting rules due for the year to 31 December 2022. FATCA returns must be submitted to the IRS for the year to 31 December 2022