I was born in Greece, my 2 parents live in Greece. 2 years ago I moved to UK for some months, I got an address, a national insurance number and a UTR since I registered as a sole trader. A few months later I moved to Greece and Im living there since then. I don't have any property on my name in any country, Im living with my girlfriend soon to be wife and the property/rent is under her name. Im selling items through an ecommerce portal eg amazon/ebay at UK. That means all my turnover and profit is from UK. I had to register for a VAT and I did under my accountant's business address again as a sole trader. Im paying my personal tax allowance plus VAT and everything needed in the UK normally, Im not tax evading. My turnover is more than 500.000£ per year. How can I keep living in Greece and be legally fine here too while paying my taxes and vat on UK normally? Keep in mind no inventory or anything from Greece takes action into making my UK turnover/profit. My whole work is based online, I don't even come in contact with the inventory Im selling.
I was told by another accountant that what Im doing is Illegal for both countries (but I don't know if that is true since other accountant's opinions differ) but considering Im a sole trader (Im a personal business If Im understanding this correctly) and other businesses ltd's etc don't have those issues why would I?
Ps Greece and UK have the double taxation avoidance treaty active.