Everything we know about US companies, written down.
State choices, entity types, the IRS forms, banking, sales tax, and what to do every year. Written by the team that files them.
When a C-Corp beats an LLC: raising from US investors
A plain English guide to choosing a Delaware C-Corp over an LLC when you plan to raise from US investors.
The US company glossary for non-US founders: 30 terms, plainly defined
Bookmark this one.
The registered agent: the least glamorous thing your LLC can't live without
It's a legal requirement in all fifty states, it costs less than a phone plan, and letting it lapse can kill your company or cost you a lawsuit you never knew about. Five minutes here saves the expensive kind of surprise.
An operating agreement for one person? Yes — here's who's really asking
It feels absurd: a contract between you and yourself, filed nowhere. Then Mercury asks for it, the IRS assumes it, and a courtroom treats it as the difference between a real company and your personal alter ego. Absurd documents that everyone demands aren't absurd.
LLC vs C-Corp for non-US founders: which US entity to form (2026)
This choice sounds intimidating but resolves fast once you answer one question: are you building a profit machine you own, or a rocket you'll sell pieces of to investors?
Your US company, filed this week.
Pick a state, pick a plan, pay once. The full price, state fee included, is on the first screen.