I just started a limited company in the UK that I started with funds transferred from the USA. I have lived in the UK for 4.5 years and have filed personal taxes in both countries every year. This year (2013) finally not filing in California as well. I have been reading up as much as possible, but just throwing the question out there in case anyone has any words of wisdom/pitfalls/wow-you-should-really know-this tips??