i am not in the country for year 13 can i still sit my a levels

my mum is not well so wants to take me back to her home country for year 13, does this mean i cannot go back in may and sit my a levels? I would be happy to self teach all the year 13 content here. Does this affect my UCAS application would I not be uk student anymore would this mean I would have to apply internationally? I have a british passport and have lived in the UK for 13 years prior to this.

my mum is not well so wants to take me back to her home country for year 13, does this mean i cannot go back in may and sit my a levels? I would be happy to self teach all the year 13 content here. Does this affect my UCAS application would I not be uk student anymore would this mean I would have to apply internationally? I have a british passport and have lived in the UK for 13 years prior to this.

You would definitely still be a UK student so long as you can prove to the uni and student finance that your absence is temporary which it sounds like it is so you'll be fine. As for A-levels ask your school I guess and if they say no you can look up how to take A-levels as a private candidate (you will have to pay a bit). Hope your mum gets better.

You would need to sit A Levels as a private candidate - a school will not enrol you as a student if you're not going to be in the country. They can accept entry as a private candidate though - and you'd just need to pay them the exam fees.
Are you out of school age at the country you are moving to?
UCAS Application should be fine
Student Finance will be more interesting
For both, you will need an address for them to send post to, think about where that is going to be - it can't be an address that nobody is going to live at for a while.

I think I am moving back on my own which will be difficult as a 17 year old, thinking of renting a room will that be a good enough address?

But i have read the UCAS website and says you need to have lived in the UK for 3 years before your application, which I would not qualify for. As my school is on summer break, they will not respond until September which is very late for me.

But i have read the UCAS website and says you need to have lived in the UK for 3 years before your application, which I would not qualify for. As my school is on summer break, they will not respond until September which is very late for me.