Important UK tax dates for the 2023/24 tax year

With so many dates scattered throughout the calendar, it can be easy to forget important tax deadlines for your business. At Alexander & Co, we have put together this useful guide for 2023 and the remainder of the 2022/23 tax year as well as the 2023/24 tax year, to help you keep track of the UK tax dates you need to remember.

Contact us to discuss how we can assist you with your tax matters, or to discuss the other services we offer. 

Key tax dates for 2023 and the 2023/24 tax year

January 2023

  • ​​Online Self Assessment tax returns are due on the 31st January.
  • The first payment on account for the 2022/23 tax year is due on January 31st.

February & March 2023

  • End of year tax planning. Both individuals and companies need to consider planning for the start of the new tax year on April 6th.

April 2023

  • The 2023/24 tax year begins on April 6th. Annual tax rates or allowance changes will typically come into effect on this day.

May 2023

  • Employees must be issued with a P60 form by 31st May. 

July 2023

  • PAYE Settlement Agreements must be paid by 5th July. 
  • The deadline for submitting expenses and benefits forms P11D and P11D(B) to HMRC is on 6th July.
  • HMRC must receive payment of Class 1A National Insurance contributions by 19th July, or 22nd July if payment is made electronically.
  • The second payment on account for the 2022/23 tax year is due on 31st July.
  • Employment Related Security (ERS) Returns are required to be submitted to HMRC by 6th July.

October 2023

  • You must inform HMRC by 5th October if you did not submit a tax return for the previous tax year, but you need to submit one for the 2022/23 tax year.
  • Paper Self Assessment tax returns are due on the 31st October.

December 2023

  • The deadline to submit your Self Assessment tax return online is 31st December for anyone wanting HMRC to automatically collect tax owed from wages and pension.

January 2024

  • Online Self Assessment tax returns are due on the 31st January.
  • ​​The first payment on account for the 2023/24 tax year is due on January 31st.

Business support with Alexander & Co

We know that there is enough to think about when running a company, which is why we can offer support  so you can focus on growing your business. As well as tax advice, we offer a full accountancy service, including assistance with company audits and business valuations, alongside many other services, and are trusted by many companies to assist with their business affairs. 

Get in touch with us to speak to one of our experts on how we can assist your business. 

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