US business data, straight from the state
Look up companies, check whether a name is free, and get filing fees, deadlines, processing times and tax registration rules for all 50 states and DC. One API key, read from official state sources.
Free plan includes 50 credits a month. No card needed.
Everything a filing needs, for every state
Fees, deadlines, processing times and tax registration cover all 50 states and DC. Name checks and company search cover 18 states: Wyoming, Delaware, Missouri, New York, Texas, Florida, Colorado, Connecticut, Oregon, Pennsylvania, District of Columbia, Idaho, North Dakota, Alabama, New Jersey, Kentucky, Arkansas and Minnesota.
Data you can trace back
Traceable to the source
Every fee, deadline, processing time and tax rule links to the state page it came from, with the date it was last confirmed there.
Checked so you don't have to
Official pages are re-read every week, and live processing dates every day. A change goes live only after it's read the same way twice and found on the page.
Pay for answers only
Searches with no results, calls that fail and responses with nothing new are free. Your dashboard shows what every call cost.
Calculators, free to use
Franchise tax by each state's own formula, the yearly cost of annual reports, where sales tax registration starts, federal tax by entity type and IRS late penalties. Built on the same official figures, and each one is also an API endpoint.
All calculators- Annual reportEvery annual report and franchise tax due date, fee and late fee, and the total per yearOpen calculator
- Franchise taxDelaware, Texas, California and other state franchise and privilege taxes, by each state's formulaOpen calculator
- Sales taxWhere your sales cross the remote-seller threshold, and each state's rateOpen calculator
- Federal taxFederal tax as an LLC, S corporation or C corporation, and what an S corp election savesOpen calculator
- IRS penaltiesLate-filing penalties for Forms 1120, 1065, 1120-S and 5472Open calculator
- Formation costThe real first-year cost of forming in each state, side by sideOpen calculator
- Late filingWhat a missed annual report costs now, and when the state dissolves the companyOpen calculator
Simple monthly plans
One pool of credits for every endpoint and state. Credits reset on the 1st.
- 20 calls a minute, 500 a day
- Up to 5 states per fee, deadline or processing call
- Community support
- 30 calls a minute, 1,000 a day
- All 51 states in one fee, deadline or processing call
- Email support
- 60 calls a minute, 3,000 a day
- All 51 states in one fee, deadline or processing call
- Email support
- 120 calls a minute, 10,000 a day
- All 51 states in one fee, deadline or processing call
- Priority support
Start with 50 free credits a month
Your API key is ready as soon as you sign up.