How to Register a Company in the United States Complete List of Required Documents + Step-by-Step Guide

Registering a company in the United States is more transparent than most people imagine-but details determine success. There is no centralized “U.S. Company Registration Authority”; instead, registration is administered independently by each of the 50 states. Selecting the right state of incorporation, understanding tax obligations, and avoiding common pitfalls are therefore critical.

I. What Do You Need to Register a U.S. Company?

Core Document Checklist

1. Company Name Must be verified for uniqueness within the chosen state (i.e., not identical to any existing active entity) and must include a legally mandated suffix such as “LLC” or “Inc.”

2. Registered Agent Information Must be an individual or professional service with a physical street address within the state of incorporation-responsible for receiving legal documents on behalf of the company.

3. Information of Company Principals For an LLC, this includes members; for a corporation, directors and/or shareholders. While some states do not require public disclosure of this information, the IRS will require accurate and verifiable contact details when applying for an Employer Identification Number (EIN).

4. Business Address May differ from the registered agent’s address, but cannot be a virtual email address or a P.O. Box only.

5. Governing Documents

For an LLC An Operating Agreement (though not required to be filed with the state, it is essential for opening a bank account and internal governance);

For a corporation Articles of Incorporation (filed with the state) and Bylaws (adopted internally but not filed).

II. Step-by-Step Practical Process (Using Delaware LLC as Example-the Most Common Path)

1. Name Search and Reservation Conduct a free name availability search via the state’s official website; some states allow online reservation (valid for 90 days).

2. Appoint a Registered Agent If you lack a physical presence or resident representative in the state, you must engage a licensed registered agent service (annual fee typically ranges from $100 to $300).

3. File the Certificate of Formation Online with the Secretary of State’s Office In Delaware, the filing fee is $90. Standard processing takes 3-5 business days; expedited processing is available for an additional fee.

4. Obtain a Federal Tax ID (EIN) Apply free of charge via the IRS website using Form SS-4. A U.S. Social Security Number (SSN) is not required; foreign applicants may use passport information and an international phone number for identity verification.

5. Open a U.S. Bank Account Most traditional banks require the authorized signatory to appear in person at a branch. However, certain digital banks (e.g., Mercury, Brex) support remote account opening-requiring submission of the EIN, governing documents (e.g., Operating Agreement or Articles of Incorporation), government-issued identification, and a corporate resolution authorizing account opening.

6. Fulfill Ongoing Compliance Requirements

File the annual Franchise Tax Report with the state (for a Delaware LLC, the minimum franchise tax is $300);

File federal income tax returns on time (by default, an LLC is treated as a pass-through entity domestic single-member LLCs report on Schedule C of Form 1040; multi-member LLCs generally file Form 1065).

III. Key Points Often Overlooked

Not all states permit 100% foreign ownership Wyoming and New Mexico impose no residency requirements on owners or managers, whereas California requires at least one director to be a resident of the state.

There is no unified “U.S. business license.” However, businesses operating in regulated sectors-including food service, healthcare, and finance-must obtain additional state- or locality-specific licenses or permits.

Forming an LLC does not automatically qualify the owner for a U.S. visa. Visa categories such as EB-5 or L-1 require separate compliance with investment thresholds, job creation, and other eligibility criteria.

Failure to file the Annual Report triggers late fees-and repeated noncompliance may result in administrative dissolution. Filing deadlines vary by state (e.g., March 1 in New York; May 1 in Florida).

The above outlines the foundational framework and key documentation requirements for registering a U.S. company. We hope this guide proves helpful to you.