I live in the Channel Islands, Guernsey. I have started a simple one product shopify business. I haven't begun advertisement yet etc etc, so I haven't actually sold any products yet. I'm curious about the VAT and other taxes I'd maybe need to deal with. As I live in the Channel Islands, we're exempt from paying VAT on goods, but because I'm shipping from a warerhouse in Spain (through Aliexpress) to the UK only, what sort of costs would I need to consider and how would I go about correctly sorting all this out. Apologies for any naivety on the subject, I'm fairly new to this and want to do it right, without tax issues.