Could anyone guide me on how to fill out this online W8 form? I'm really confused as to what to write, I'm an individual, self employed. Here's what I need to fill in: I don't understand the bottom part, the Claim of Tax Treaty crap section at the bottom, the national principal contracts and the capacity in which acting? Self? Also I'm only self employed, I don't have a registered company name, do I still put the company name down at the top? And what about country of incorporation? I'm not incorporated? What do I type? PS. I'm from the UK!