Tax refund after leaving the UK

Hello, I left my job in October 2023 and left the UK in November 2023 (my salary used come in the PAYE system). However, I have received a freelance contract payment of £>1000 in February 2024. Do I need to report the freelance income for taxes in the UK? For context, I have lived in the UK for the last 3 tax years. And suppose I report the freelance income and also seek refund on my taxes before leaving the UK. Can you suggest what is the correct order to do this? Should I report the freelance income first or if I should fill up the P85 first? Second, since I have left the UK what is the quickest way for me to fill uk the self assessment for freelance income? Thanks:)

Hi,
Based on the information provided in the question it would seem appropriate to complete a Self Assessment tax return for the 2023-24 tax year.
You will need to establish your residence status for the UK tax year in the first instance as this will then be the basis for how the tax return should be completed and will identify which country has taxation rights on the freelance contract payment which would seem to class as self employment income.
The “Business profits” and permenant establishment” articles of the Double Taxation agreement the UK have with the other country in question will confirm the taxation position.
A P85 will not be needed the tax liability can be established through the self assessment tax return.  
RDR3: Statutory Residence Test (SRT) notes
Thankyou.