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Self Assessment : Key Dates

31 January 2023 – First payment on account due for 2022/23 tax year.

31 July 2023 – Second payment on account for 2022/23 tax year.

5 October 2023 – Deadline for notifying HMRC of new sources of income (including the Child Benefit charge) if no tax return has been issued for 2022/23 tax year.

31 October 2023 – Deadline for submission of 2022/23 non-electronic returns.

30 December 2023 – Deadline for submission of 2022/23 electronic tax returns if ‘coding out’ of eligible underpayment is required.

31 January 2024 – Deadline for filing electronic tax returns for 2022/23. Balancing payment due for 2022/23 tax year. First payment on account due for 2023/24 tax year.



This publication is published for the information of clients. It provides only an overview of the regulations in force at the date of publication and no action should be taken without consulting the detailed legislation or seeking professional advice. Therefore no responsibility for loss occasioned by any person acting or refraining from action as a result of the material contained in this publication can be accepted by the authors or the firm.

Registered as auditors and regulated for a range of investment business activities in the United Kingdom by the Association of Chartered Certified Accountants

Company Information Walker Thompson is a trading name of Walker Thompson Ltd registered in England and Wales. Company registration number 06574838

Registered Office Empress House :: 43a Binley Road :: Coventry CV3 1HU :: T 024 7663 5522 :: F 024 7663 5518 :: E