Hello everyone! I'm freelancing for less than a year, never did the self-assessment and I have lots of questions. A bit about me: I'm a Portuguese UK based freelancer and I provide marketing services online (not digital download!). I'm not VAT registered. I work with international clients on Fiverr and I have one US client that I invoice via Paypal. I want to launch my website with a store where customers can buy my services straightway. 1. Do I need to tax my US client? 2. If I decide to sell my services via my website to international clients do I need to tax my clients according to their countries? If so, do I need to register for vat in each country? 3. Do I need to tax my UK clients? What information do I need to put on the invoice by law? 4. What information do I need to keep/documents to do my self-assessment? 5. I mainly work with USD, I only buy pounds when the currency is excellent. What data should I keep for my self-assessment money received in USD or pounds (after trading)? Thank you so much for your help! Have a nice day!