Self assessment for non UK resident

The residency test I did showed that I was not a UK resident for the tax year 2022 to 2023. I had no UK income during my stay in the tax year. Do I need to register for self assessment which is due by 5 Oct?

Sorry, I did not make myself clear in my last message. My question is: I entered the UK in late March 2023. I have stayed in the UK for only 16 days in the 2022—2023 tax year. Residency test showed that I was NOT UK resident for the tax year 2022 to 2023. I had no UK income during the tax year. Do I need to register for Self Assessment which is due 5 Oct ? Thanks a lot for your help!!

Hi L lyluk2023,

Your questions would suggest that it was your intention to reside in the UK and perhaps take up employment etc, in 22/23, rather than be here for a holiday for example.
If your were in the UK for a holiday and earned no UK income or capital gains while here, then you would not need to register and submit a self assessment tax return.  
However, if it was your intention to remain in the UK, you would still be required to undertake the residency tests.  If after doing that, you are considered to be not tax
resident in the UK for the whole of 22/23 tax year and you had no UK income or capital gain in the 22/23 tax year, then you would not need to complete a tax return.  
The residency test can be found at RDR3 Statutory Residence Test.
 If you are considered resident in the UK, then a tax return would be required.

Thank you.

Dear HMRC, I am a non-UK resident. I live abroad in the USA. I receive a very small royalty payment from the UK every year and less than £20 is deducted at source for UK withholding tax. I claim this back manually by mailing in paper forms SA100 and R43 at the same time. My question to you is, can I do this online or does this always need to be done manually? If you can do it online do you have to do the SA100 first and then do the R43 right after, or is there another process to sequence these two forms together? I appreciate your help. Thank you.

Hi UKAbroad,
You can register to file an online Self Assessment return and then complete the SA100 AND SA109 residence page.
You will need to use 3rd party software to file the return online:
File your Self Assessment tax return online
Thank you.