How to Register a Company in the USA: LLC, C-Corp, and S-Corp Guide

Complete 2026 guide to registering a company in the USA. LLC, C-Corp, and S-Corp formation, state selection, EIN, registered agent, operating agreements, and costs by state.

The United States is the world's largest economy and one of the most popular destinations for business formation. With no federal residency requirements for company owners, a relatively straightforward registration process, and access to a consumer market of over 330 million people, the USA attracts entrepreneurs from every corner of the globe. Whether you are a US resident launching your first venture or a foreign national establishing a presence in the American market, understanding the registration process is the essential first step.

Unlike most countries where company formation is handled by a single national authority, the United States operates on a state-by-state basis. Each of the 50 states has its own secretary of state office, its own filing requirements, its own fees, and its own corporate laws. This decentralized system creates both opportunities and complexity. Choosing the right state, the right entity type, and the right formation strategy can save thousands of dollars and position your business for long-term success.

This guide covers every step of registering a company in the USA in 2026, from selecting your state and entity type through obtaining your EIN and opening your first bank account.

Choosing Your Business Entity Type

The first and most consequential decision is which type of business entity to form. The three most common structures for new businesses are the LLC, C-Corporation, and S-Corporation. Each has distinct characteristics that affect taxation, liability protection, operational flexibility, and fundraising potential.

Feature LLC C-Corp S-Corp
Liability Protection Yes Yes Yes
Default Taxation Pass-through Double taxation (21% + dividends) Pass-through
Self-Employment Tax Yes (on all profits) No (salary only) No (salary only)
Ownership Restrictions None None US citizens/residents only, 100 max
Stock Classes Membership interests only Unlimited classes One class only
Fundraising Suitability Limited Excellent Poor
Management Flexibility Very flexible Board + officers required Board + officers required
Annual Compliance Minimal in most states Moderate to high Moderate to high

For a detailed comparison of these three structures including tax implications, self-employment savings strategies, and conversion options, see our comprehensive guide to LLC vs C-Corp vs S-Corp. The choice of entity type will affect your business for years to come, so it deserves careful analysis before you file any paperwork.

For most small businesses, freelancers, and startups that do not plan to seek venture capital, an LLC is the recommended starting point. It provides full liability protection, pass-through taxation, minimal compliance requirements, and the flexibility to elect S-Corp or C-Corp taxation later if circumstances change.

For startups planning to raise venture capital from institutional investors, a Delaware C-Corporation is the standard choice. Investors expect this structure because it allows for preferred stock, has well-established legal precedents, and aligns with standard term sheet structures.

Selecting the Right State

Every US company must be formed in a specific state. While you can technically form your company in any state regardless of where you live or operate, the practical considerations differ significantly.

Form Where You Operate

For most small businesses that operate primarily in one state, the simplest and most cost-effective approach is to form your company in the state where you physically operate. If you form in a different state, you will need to "foreign qualify" in your home state as well, paying registration fees and annual compliance costs in both states.

Three states attract a disproportionate share of business formations from across the country:

Delaware is the gold standard for C-Corporations, especially those seeking venture capital. The Court of Chancery provides a specialized business court with judges (not juries) who have deep expertise in corporate law. Decades of case law provide predictable outcomes for corporate disputes. About 68% of Fortune 500 companies are incorporated in Delaware.

Wyoming is the top choice for LLC formation. It was the first state to create the LLC structure, charges low fees ($100 filing, $60 annual report), has no state income tax, provides strong asset protection, and does not require disclosure of member names in public filings.

Nevada offers no state income tax, no franchise tax, strong privacy protections, and does not share information with the IRS. However, Nevada's formation fees are higher than Wyoming's when you include the required business license ($200+), and the privacy advantages have diminished over time due to federal reporting requirements.

If you are considering forming your company outside your home state, carefully calculate the total cost including foreign qualification fees, registered agent costs in multiple states, and additional annual report filings. For a complete cost analysis, see our state-by-state cost breakdown.

State Filing Fee Comparison

State LLC Filing Fee Corp Filing Fee Annual Report State Income Tax
Delaware $90 $89 $300 (LLC) / $175+ (Corp) 8.7% (corp only on in-state income)
Wyoming $100 $100 $60 (min) None
Nevada $75 + $150 license $75 + $150 license $150 + license renewal None
California $70 $100 $20 (LLC) / $25 (Corp) 8.84% (corp)
New York $200 $125 $9 (biennial) 6.5% - 7.25%
Texas $300 $300 $0 (no franchise tax under threshold) None (franchise/margin tax applies)
Florida $125 $70 $138.75 (LLC) / $150 (Corp) 5.5% (corp only)

Step-by-Step Registration Process

Step 1: Choose Your Company Name

Your company name must be distinguishable from any existing entity registered in your chosen state. Most states provide an online name availability search through the secretary of state's website. The name must include the appropriate designator:

  • LLC: "LLC," "L.L.C.," or "Limited Liability Company"
  • Corporation: "Inc.," "Corp.," "Corporation," or "Incorporated"

Most states allow you to reserve a name for 60 to 120 days by filing a name reservation application (typically $10 to $25). This is useful if you need time to prepare your formation documents.

Step 2: Appoint a Registered Agent

Every US company must have a registered agent in the state of formation. The registered agent is a person or service with a physical street address in the state who is available during business hours to receive legal documents, government correspondence, and service of process on behalf of the company.

You can serve as your own registered agent if you have a physical address in the state (not a PO box) and are available during business hours. Most business owners, especially those forming in a state where they do not reside, use a commercial registered agent service. These services typically cost $50 to $300 per year.

When selecting a registered agent, consider reliability and reputation over price. A missed service of process delivery can result in a default judgment against your company. Established services like Northwest Registered Agent, Incfile, and CSC Global have strong track records. Many formation services include the first year of registered agent service free with your filing.

Step 3: File Formation Documents

For an LLC, you file Articles of Organization (called a Certificate of Formation in some states). For a corporation, you file Articles of Incorporation (called a Certificate of Incorporation in Delaware). These documents are submitted to the secretary of state's office in your chosen state.

The formation document typically requires:

  • Company name
  • Registered agent name and address
  • Principal office address
  • Name and address of the organizer or incorporator
  • Purpose of the company (most states accept "any lawful purpose")
  • For corporations: number and type of authorized shares

Most states allow online filing, which is faster and sometimes cheaper than paper filing. Processing times range from same-day in states like Wyoming and Delaware (with expedited service) to several weeks in slower states.

Step 4: Create Your Operating Agreement or Bylaws

For LLCs: An operating agreement defines the ownership structure, profit distribution, management rights, and operating procedures of the LLC. While not all states legally require an operating agreement, every LLC should have one. It is essential for multi-member LLCs and important for single-member LLCs to establish the company as a separate legal entity (supporting the "corporate veil" that protects your personal assets).

For Corporations: Bylaws serve a similar function, establishing rules for shareholder meetings, director elections, officer appointments, and corporate governance. Corporations should also hold an organizational meeting to adopt bylaws, elect directors, appoint officers, and authorize the issuance of stock.

Step 5: Obtain an EIN

An Employer Identification Number (EIN) is your company's federal tax identification number, equivalent to a Social Security Number for a business. You need an EIN to:

  • Open a business bank account
  • File federal tax returns
  • Hire employees
  • Apply for business licenses and permits

The EIN is free and can be obtained online at irs.gov. If the responsible party (the person applying) has a US Social Security Number or ITIN, the online application provides the EIN instantly. Foreign applicants without SSN/ITIN must apply by fax (Form SS-4) and typically receive the EIN within 4 to 6 weeks.

Step 6: Register for State Taxes

Depending on your state and business activities, you may need to register for:

  • State income tax: If your state has a corporate or personal income tax
  • Sales tax: If you sell taxable goods or services (see our sales tax guide)
  • Payroll tax: If you have employees
  • Franchise tax: Some states require annual franchise tax payments

Step 7: Obtain Business Licenses and Permits

There is no single federal business license in the USA. Licensing requirements vary by state, county, city, and industry. Common requirements include:

  • General business license (city or county level)
  • State professional licenses (for regulated industries)
  • Health department permits (for food-related businesses)
  • Building and zoning permits (for physical locations)
  • Federal licenses (for industries regulated at the federal level, such as firearms, broadcasting, or transportation)

Step 8: Open a Business Bank Account

With your EIN and formation documents in hand, you can open a business bank account. This is essential for maintaining the legal separation between your personal and business finances. For a comprehensive guide to banking options including recommendations for non-residents, see our business bank account guide.

Formation Timeline

The overall timeline from decision to fully operational company varies by state and complexity:

Step Timeline
Name search and reservation 1-2 days
Prepare formation documents 1-3 days
State filing and processing 1 day to 3 weeks (varies by state and service level)
EIN application Instant (online) to 6 weeks (fax for foreign applicants)
Operating agreement / bylaws 1-5 days
Bank account opening 1-7 days
State tax registrations 1-14 days
Business licenses 1-30 days (varies significantly)

In the fastest scenario (Wyoming LLC with expedited filing, online EIN, and online bank account), you can have a fully operational company within 2 to 3 business days.

Special Considerations for Foreign Entrepreneurs

Non-US residents can form LLCs and C-Corps in any state without a visa, Social Security Number, or physical presence. However, there are several additional considerations:

Entity Type: Foreign nationals cannot own S-Corps. The choice is between an LLC and a C-Corp. An LLC owned by a foreign person is treated as a disregarded entity or partnership for US tax purposes. A C-Corp provides more straightforward tax treatment but results in double taxation.

Tax Obligations: Foreign-owned US companies are subject to US tax on effectively connected income. Additional reporting requirements include Form 5472 (for foreign-owned LLCs), FIRPTA withholding on real estate, and potential treaty benefits.

Banking: Opening a US bank account as a non-resident can be challenging with traditional banks. Online banks like Mercury and Relay have streamlined the process for foreign entrepreneurs. See our banking guide for detailed options.

BOI Reporting: All newly formed companies must file Beneficial Ownership Information reports with FinCEN within 90 days of formation. This requirement applies regardless of the owner's nationality. Learn more in our compliance guide.

Foreign entrepreneurs should also consider the visa implications of operating a US business. While forming a company does not require a visa, physically working in the US does. The E-2 investor visa and L-1 intracompany transfer visa are the most common pathways for business owners who need to be physically present in the United States.

Costs Summary

The total cost of forming a US company depends heavily on the state and entity type chosen. Here is a realistic breakdown for a simple LLC formation:

Cost Item Typical Range
State filing fee $40 - $500
Registered agent (first year) $0 - $300 (often included free)
EIN Free
Operating agreement (template) $0 - $100
Operating agreement (attorney-drafted) $500 - $2,000
Business license $0 - $500
Bank account opening Free
Total (DIY, simple LLC) $50 - $500
Total (with professional services) $500 - $3,000

For a detailed analysis of costs across all 50 states and ongoing annual expenses, see our cost breakdown guide.

Common Mistakes to Avoid

Forming in the wrong state: Do not automatically choose Delaware or Wyoming if you operate in a single state. The cost of foreign qualification often outweighs any benefits for small businesses.

Skipping the operating agreement: Even for single-member LLCs, an operating agreement strengthens your liability protection and is required by some banks to open an account.

Mixing personal and business finances: Using personal bank accounts for business transactions undermines the limited liability protection of your entity structure.

Ignoring ongoing compliance: Annual reports, franchise taxes, and BOI reporting have deadlines with penalties for non-compliance. Set calendar reminders for every recurring obligation.

Choosing the wrong entity type: Converting from one entity type to another later is possible but can trigger tax consequences. Spend time on this decision upfront or consult a tax professional.

Next Steps After Formation

Once your company is registered, several important tasks should be completed promptly:

  1. File your BOI report with FinCEN within 90 days
  2. Open a dedicated business bank account
  3. Set up proper accounting and bookkeeping
  4. Register for applicable state and local taxes
  5. Obtain required business licenses and permits
  6. Consider business insurance needs
  7. Understand your tax obligations and available deductions
  8. Build your business credit profile

The United States offers a business environment with strong legal protections, access to the world's largest consumer market, a deep talent pool, and a financial system that supports businesses of every size. With the right entity type, state selection, and compliance practices, your US company can serve as a powerful platform for domestic and international business operations.

For entrepreneurs comparing the USA with other jurisdictions, consider reviewing our formation guides for the United Kingdom, Singapore, UAE/Dubai, and Estonia to evaluate which jurisdiction best fits your business model and long-term goals.

Frequently Asked Questions

How much does it cost to register a company in the USA?

State filing fees range from \(40 in Kentucky to over \)500 in Massachusetts. The most popular states for formation charge: Delaware \(90 for LLCs and \)89 for corporations, Wyoming \(100 for LLCs, and Nevada \)75 plus \(150 business license fee. The federal EIN is free from the IRS. Additional costs include registered agent service (\)50 to $300 per year) and operating agreement preparation.

Can a foreigner register a company in the USA?

Yes. There are no citizenship or residency requirements to form an LLC or C-Corp in any US state. Foreign nationals can own 100% of an LLC or C-Corp. However, S-Corps are restricted to US citizens and permanent residents. Foreign owners will need an ITIN or EIN, a registered agent with a US address, and may face additional banking requirements.

Which state should I register my company in?

Most small businesses should register in the state where they physically operate. Delaware is preferred for venture-backed startups and corporations due to its business-friendly Court of Chancery and established corporate law. Wyoming offers the lowest fees and strongest privacy protections for LLCs. Nevada has no state income tax and strong asset protection. If you register in a state different from where you operate, you will need to foreign-qualify in your home state as well.

How long does it take to register a US company?

Processing times vary by state. Wyoming and Delaware can process filings within 1 to 3 business days for standard service, with same-day or 24-hour expedited options available for additional fees. California takes 3 to 5 business days online. New York can take 1 to 2 weeks for standard processing. Most states offer expedited processing for an additional fee ranging from \(50 to \)500.