Free tools

Free tools for US company owners

No signup, no email wall — just the quick answers foreign founders keep asking for. Every figure is labeled as of 2026, and every result is an estimate based on published rules, not a determination.

These tools give you a fast, transparent estimate. When you want the real answer for your situation — the right state, whether you owe US income tax, catch-up filings — talk to a CPA or start with a free compliance check.

Beyond the estimate

Real answers for your company.

A calculator is a starting point. Setting things up right — and fixing what a formation platform left behind — is what we do.