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Tools for starting a U.S. company
Honest, fast calculators that run in your browser — your numbers stay on your device. More are on the way as we build out the full guide.
LLC Cost by State
Filing + annual fees for all 50 states, sorted side by side.
LLC vs S-corp Tax Calculator
Estimate S-corp tax savings vs a default LLC, instantly.
Business name search
Check name availability in any state — direct links to all 50 official registries.
Trademark search
Is your name trademarked? Search the official USPTO, WIPO and EU databases free.
Startup cost estimator
Estimate what it really costs to launch — by state and business type.
The founder’s starting-a-US-company checklist
Get the free step-by-step checklist plus the occasional plain-English guide on formation, taxes, banking, and staying compliant. No spam, no hype. Unsubscribe anytime.