Honestly, the constant day-counting and paperwork involved in being a U.S. expat is starting to feel like a second job. How is everyone actually managing this without losing their minds? I want to stay compliant, but I’m tired of the constant stress. Also, for those who use an expat CPA — are there still 'hidden' mistakes I should be worried about that could trigger an audit? I don't want to assume I'm safe just because I’m paying a professional.

As a UK citizen residing in the US for 15 years, I plan to establish a food business. Please provide a systematic outline of the following:

1. What are the core legal requirements for registering a foreign-owned business in the US?
2. What specific documentation and procedural steps, including EIN acquisition, are required for non-US residents opening a business?