[dgildeh]

Thanks both - I actually did put a paragraph about this in the blog then took it out as the blog was too long, there are definitely differences between married vs. single in US/UK, but I wanted to look more at the worst case scenario.

Most of my friends/colleagues are not aware that for at least single tax filers, the difference between UK/California is less than 5%, I think its assumed Europe is significantly higher, and that's not the case anymore as the US bureaucracy has grown!