This is more a business question than game development..
Assuming you have a game you would like to upload to Kongregate or some similar site.. what are legal requirements, when based in the UK?
Im sure i remember someone mentioning you have to fill out some kind of US tax form or something.. (yeh, im clueless)..
Another thing.. info on Kongregate says you need a paypal account.. does this need to be a business account?.. im not familiar with paypal.. had a quick look, but it seemed like the business side of it was for selling stuff on your site..
sorry for the dumbness ;)