How to Set Up an Entity in the US: A Step-by-Step Guide for Global Companies (Including Payroll)

You've decided to hire in the United States. The market opportunity is clear, the candidate is ready, and your board expects movement. Then reality hits: most guides cover legal registration and stop there. The real operational challenge starts after incorporation, when you're staring at payroll tax registration forms, EIN sequencing dependencies, and state account timelines that nobody warned you about.

This is where international companies lose weeks. A foreign-owned company typically needs 6-10 weeks to go from deciding to form a US entity to running a first compliant US payroll, driven mainly by EIN issuance and state payroll account activation sequencing. That timeline catches most global expansion teams off guard, especially when the candidate you've found expects to start in three weeks.

Setting up a US entity involves seven sequential steps: choosing a legal structure, selecting a state of formation, filing formation documents, appointing a registered agent, obtaining a Federal Employer Identification Number (EIN), registering for state payroll tax accounts, and configuring a compliant payroll system. Each step has hard dependencies on the one before it. Miss the sequencing, and you'll delay your first hire by a month or more.

Quick Facts: US Entity Setup for Foreign Companies

A US entity is a legally registered business structure formed under the laws of a US state that allows a foreign parent company to hire US employees directly, sign US contracts, and hold US bank and payroll tax accounts in the entity's name.

A practical EIN timeline for foreign-owned entities where the responsible party lacks a US SSN or ITIN is 4 business days by fax or 4-6 weeks by mail. EIN timing is the single most common critical path item that delays first payroll.

Total one-time costs to form a basic US entity and reach payroll readiness commonly land in the $1,500-$5,000+ range when combining state filing fees, registered agent, formation support, and initial payroll setup tasks.

New-employer State Unemployment Insurance (SUI) contribution rates commonly start around 2-4% of taxable wages in many states, with California new employers paying 3.4% for 2-3 years, and the taxable wage base is state-specific and resets annually.

Registered agent services for US entities typically cost $50-$300 per year, and a registered agent with a physical address in the state of formation is mandatory for most corporations and LLCs.

Should You Choose an EOR or Your Own US Entity?

Before diving into entity formation steps, you need to answer a fundamental question: is forming your own entity actually the right path for your situation right now?

An Employer of Record (EOR) differs from a US entity in speed because EOR onboarding is commonly achievable in days to 1-2 weeks, while entity formation plus payroll readiness commonly takes 6-10 weeks due to EIN and state payroll account dependencies. For companies hiring fewer than 10 employees or testing the US market, an EOR is typically faster and lower-risk.

Choose an EOR when you need a US hire to start in 1-2 weeks and you cannot accept the 6-10 week critical path created by EIN issuance, state tax registrations, and US banking setup. Choose your own US entity when you plan a sustained US presence and expect to scale beyond roughly 10 US employees, because fixed entity compliance costs typically amortise better at higher headcount than per-employee EOR fees.

The math tips toward entity formation when you're committed to a permanent US presence, hiring at scale, or preparing for a future acquisition. Teamed's graduation model helps companies navigate this decision by providing clear crossover economics: the calculation of when entity setup becomes cheaper than EOR based on your specific headcount and growth trajectory.

Step 1: Which Legal Structure Should You Choose for Your US Entity?

The three most common US entity structures for foreign companies are the C-Corporation, the LLC, and the S-Corporation. Most international companies choose the C-Corporation for its investor-friendliness and clean separation of foreign parent and US subsidiary, or the LLC for its tax flexibility and simpler administration.

A C-Corporation is the preferred structure for foreign-owned US subsidiaries when you anticipate institutional investment, a complex cap table, or an acquisition pathway that typically expects a corporate structure. C-Corps are taxed at the entity level, which creates potential double taxation on dividends but provides the clean cap table structure that US investors expect.

An LLC offers pass-through taxation and flexible internal allocation of profits and governance. However, single-member LLCs owned by foreign entities have specific IRS filing requirements, including Form 5472, which requires detailed reporting of transactions between the LLC and its foreign owner.

Here's a common mistake: S-Corporations are generally not available to foreign-owned entities due to ownership restrictions. S-Corps cannot have non-resident alien shareholders, which disqualifies most foreign parent companies. Don't waste time exploring this option if your parent company is based outside the US.

A US subsidiary is a separate US-incorporated company owned by a non-US parent company, designed to ring-fence US employment and contract liability from the parent while creating a clean structure for payroll, tax registrations, and US banking.

Step 2: Which State Should You Form Your US Entity In?

Foreign companies most commonly form their US entity in Delaware, Wyoming, or the state where they will primarily operate. Delaware is the default choice for companies seeking investment or planning an eventual IPO, with 81.4% of U.S.-based IPOs choosing Delaware as their corporate home due to its established corporate law and Court of Chancery.

Delaware offers a predictable legal framework, no state income tax on out-of-state revenue, and familiarity among US investors and legal counsel. The catch: if your employees work in California, Texas, or New York, you'll need to foreign-qualify in those states anyway, which adds cost and time.

A typical mid-market "Delaware formation plus foreign qualification where employees sit" approach adds a second set of state fees and an additional registration step, which commonly adds 1-4 weeks to the overall timeline depending on the operating state.

Wyoming offers low fees, strong LLC privacy protections, and no state income tax. It's a solid alternative for smaller operations that don't need Delaware's investor credibility.

Choose formation in the primary operating state when you will have an immediate physical office or a concentrated workforce in that state and you want to avoid the time and cost of foreign qualification. If you're hiring five people in California from day one, forming directly in California eliminates the dual-registration complexity.

Delaware filing fees run approximately $89 for corporations plus franchise taxes. California charges $800 minimum franchise tax annually regardless of revenue. Wyoming offers lower ongoing fees but less investor recognition.

Step 3: How Do You File Formation Documents and Appoint a Registered Agent?

To form a US entity, you must file Articles of Incorporation (for a Corporation) or Articles of Organization (for an LLC) with the Secretary of State in your chosen state. You must also designate a registered agent, a person or service with a physical US address authorised to receive legal documents on behalf of the company.

Articles of Incorporation typically include your company name, registered agent information, authorised shares, and incorporator details. The requirements are straightforward, but getting the details wrong can delay processing.

Commercial registered agent services like CT Corporation, Northwest Registered Agent, or Incfile handle this for $50-$300 per year. They provide a physical address in your formation state and forward legal documents to your team. For foreign-owned companies without a US presence, a commercial registered agent is essentially mandatory.

Timeline by state varies significantly. Delaware processes standard filings in 1-3 business days, with same-day expedited service available for additional fees. California takes 3-5 business days. Wyoming processes in 1-2 business days.

Foreign qualification filing is required if you form in Delaware but operate in a second state. This registration allows your Delaware entity to legally do business and employ staff in that operating state. Costs range from $100-$750 depending on the state, and processing times vary from same-day to several weeks.

Step 4: How Do You Obtain Your Federal Employer Identification Number (EIN)?

An Employer Identification Number (EIN) is a nine-digit federal tax ID issued by the IRS. It is required before you can open a US business bank account, hire employees, or register for state payroll tax accounts. This is the step that catches most international companies off guard.

If the responsible party has a US Social Security Number or ITIN, an EIN can be obtained online in minutes through the IRS website. The process is instant and free.

For foreign-owned entities where the responsible party lacks a US SSN, the IRS Form SS-4 must be submitted by fax (4 business days) or mail (4-6 weeks). Plan for the fax timeline as your baseline. The mail option should be avoided unless absolutely necessary.

Here's the critical sequencing note that most guides miss: state payroll tax accounts cannot be opened until the EIN is issued. This dependency is the most common cause of payroll delays for international companies. You cannot legally run payroll without a valid EIN, so factor EIN issuance time into your first hire's start date.

Teamed's implementation benchmarks show that EIN timing is consistently the single most common critical path item that delays first payroll for foreign-owned entities entering the US market.

Step 5: How Do You Register for State Payroll Tax Accounts?

After receiving your EIN, you must register for state payroll tax accounts in every state where you have employees. At minimum, this includes a State Income Tax Withholding account and a State Unemployment Insurance (SUI) account. Some states also require separate local tax registrations.

A State Withholding Account allows you to withhold and remit state income tax from employee wages. Registration is typically with the state Department of Revenue or Taxation. A State Unemployment Insurance (SUI) account funds state unemployment benefits and requires registration with the state Department of Labor or Workforce Commission.

Employee payroll taxes are based on the state where the employee works, not where the company is incorporated. A Delaware-incorporated company with an employee in California must register for California payroll taxes. This catches many international companies off guard, especially those with remote-first hiring strategies.

Registration timelines vary dramatically. California's Employment Development Department processes online registrations in 1-2 weeks. New York can take 2-4 weeks. Texas has no state income tax but still requires unemployment insurance registration. Florida similarly has no state income tax.

Local tax registrations add another layer of complexity in certain jurisdictions. Pennsylvania's Act 32 requires local earned income tax registration. Ohio uses RITA and CCA systems for municipal taxes. New York City, Philadelphia, and other high-compliance cities require separate registrations beyond state-level accounts.

If employees are in multiple states from day one, each state requires separate registration. Remote-first companies often underestimate this multi-state complexity significantly.

Step 6: How Do You Open a US Business Bank Account?

A US business bank account is required to fund payroll and pay federal and state tax deposits. Most major US banks require in-person account opening with original formation documents, EIN confirmation letter, and identification for all signatories, which creates a logistical challenge for foreign-based founders.

Traditional banks like Chase, Bank of America, and Silicon Valley Bank typically require an in-person visit to a US branch. You'll need original formation documents, your EIN confirmation letter, and identification for all account signatories. Some banks require minimum deposits or ongoing balance requirements.

Fintech alternatives have emerged specifically for foreign-owned entities. Mercury, Relay, and Brex offer remote account opening, faster setup, and no minimum balance requirements. These can significantly accelerate your timeline if in-person banking isn't feasible. Note that some fintech products may have different FDIC insurance structures than traditional bank accounts.

Open the account before payroll setup. Payroll providers require a verified US bank account for ACH direct deposit, and verification can take several days.

Step 7: How Do You Configure Your Payroll System and Run Your First Payroll?

Once your EIN, state tax accounts, and US bank account are in place, you can configure a US payroll system. Key decisions include pay frequency, payroll provider selection, and worker classification.

Biweekly pay is most common in the US, though some states mandate minimum pay frequency. California requires semi-monthly payment for most employees. Confirm state rules before setting your schedule.

Full-service payroll providers like Gusto, Rippling, ADP Run, and Paychex handle tax calculations, filings, and deposits automatically. For international companies navigating US payroll for the first time, full-service is strongly recommended over DIY approaches.

Before your first payroll run, you'll need to collect employee onboarding documents. Form W-4 captures federal withholding elections. State equivalent withholding forms vary by state. Form I-9 verifies employment eligibility and requires supporting documents. Direct deposit authorisation connects employee bank accounts.

Federal tax deposit schedules are determined by lookback period. New employers default to monthly depositor status in year one, meaning federal payroll taxes are due by the 15th of the following month.

Common first-year mistakes include misclassifying employees as independent contractors (1099 vs W-2), missing state SUI registration before first payroll run, using incorrect federal deposit schedules, and failing to register for local taxes in high-compliance cities.

What's the Full Timeline from Decision to First Payroll Run?

The complete journey from deciding to form a US entity to running your first compliant payroll typically takes 6-10 weeks. Here's how that breaks down.

Weeks 1-2 involve choosing your legal structure and state of formation. This decision-making phase requires input from legal and tax advisors but shouldn't take longer than two weeks with focused attention.

Weeks 2-3 cover filing formation documents and appointing your registered agent. Delaware processes in 1-3 business days; other states vary from same-day to one week.

Weeks 3-5 are consumed by EIN application. This is your critical path. Fax applications take 4 business days; mail applications take 4-6 weeks. Plan accordingly.

Weeks 5-7 involve registering for state payroll tax accounts. Timelines range from same-day online registration to 4 weeks depending on the state.

Weeks 6-8 cover opening your US business bank account. Allow 1-2 weeks for traditional banks; fintech options can be faster.

Weeks 8-10 are for configuring your payroll system and onboarding your first employee. Allow 1-2 weeks for setup, testing, and first payroll run.

Best case with expedited EIN processing: 4 weeks. Typical case for foreign-owned entities: 6-10 weeks.

Frequently Asked Questions

Which US state is best for forming an entity as a foreign company?

Delaware is the most common choice for foreign companies due to its established corporate law, investor familiarity, and Court of Chancery, with 66.7% of Fortune 500 companies incorporated there. Wyoming is a strong alternative for LLCs prioritising privacy and low fees. If your primary operations and workforce will be in a specific state like California or Texas, forming there directly avoids the cost and complexity of foreign qualification.

How long does it take to get an EIN as a foreign-owned company?

If the responsible party has a US Social Security Number or ITIN, an EIN can be obtained online in minutes. For foreign-owned entities where the responsible party lacks a US SSN, the IRS Form SS-4 must be submitted by fax (4 business days) or mail (4-6 weeks). Plan for the fax timeline as your baseline.

Can I run payroll before my EIN is issued?

No. A Federal Employer Identification Number is required to process payroll, open state tax accounts, and make federal tax deposits. You cannot legally run payroll without one. Factor EIN issuance time into your first hire's start date.

Do I need to register for payroll taxes in every state where I have employees?

Yes. Payroll tax obligations are based on where employees work, not where the company is incorporated. If you have employees in three states, you must register for withholding and unemployment insurance accounts in all three states, regardless of your state of formation.

What is the difference between a C-Corporation and an LLC for a foreign-owned US entity?

A C-Corporation is the preferred structure for foreign-owned subsidiaries seeking investment, planning an IPO, or wanting clean liability separation from the parent company. An LLC offers pass-through taxation and simpler administration but has specific IRS filing requirements for foreign-owned single-member LLCs (Form 5472). S-Corporations are generally not available to foreign-owned entities due to ownership restrictions.

How much does it cost to set up a US entity?

Total setup costs typically range from $1,500 to $5,000+ depending on state, legal structure, and whether you use an attorney. Key cost components include state filing fees ($50-$800), registered agent fees ($50-$300/year), EIN application (free via IRS), state payroll tax account registration (free to $200), and legal or formation service fees ($500-$3,000+).

Moving Forward with Your US Entity

Setting up a US entity as a foreign company requires navigating seven sequential steps with hard dependencies between them. The EIN-to-state-accounts sequencing is where most companies lose time, and multi-state payroll registration adds complexity that remote-first hiring strategies often underestimate.

The decision between EOR and entity formation isn't permanent. Many companies start with an EOR to move quickly, then graduate to their own entity when headcount and commitment justify the investment. Teamed's advisory approach helps companies navigate this transition, providing the right structure for where you are and trusted advice for where you're going.

If you're weighing the entity formation path against faster alternatives, or if you've already formed and need help with the payroll tax registration maze, talk to an expert who can map the sequencing to your specific timeline and hiring plans.