Direct answer
U.S. Small Business Administration (SBA) is the primary authority for the company setup guidance INCORPSYS summarises for USA. Its official pages are listed below; every USA guide links back to them.
Official pages
Sources last checked: 25 September 2026.
Guides built on these sources
- Choosing a Business Location in USA
- Choosing a Business Structure in USA
- Choosing a Business Name in USA
- State Business Registration in USA
- Registered Agent in USA
- Foreign Qualification in USA
- Federal and State Tax IDs in USA
- Licences and Permits in USA
- Local Registration and Permits in USA
- Ongoing State Reporting in USA
How to use official sources
Use the cited authority as the final verification point and keep the source page, filing evidence and update date with the case file.
Frequently asked questions
Which authority controls official sources & verification in USA?
U.S. Small Business Administration (SBA) is the primary authority for the guidance on this page. Other authorities can be involved depending on your activity; re-check the official source before acting.
How we write our guidesWe summarise official guidance and link to it. We do not publish fees, timelines or approval promises unless the authority does. Read our methodology.