A European or Latin American business owner decides to enter the US market. Within weeks, the questions multiply: which state, which entity type, which tax elections, which bank? The answers are not intuitive for foreign investors. US company registration is fast on paper – Delaware processes filings in one business day – but the surrounding requirements can stall an otherwise straightforward process for months.
Company formation in the United States requires selecting a state of incorporation, appointing a registered agent with a US address, and filing formation documents with the relevant state authority. Foreign nationals may own a US entity without restriction, but federal tax registration and banking due diligence add significant lead time. The full process from initial filing to an operational business account typically takes four to eight weeks.
This guide covers each procedural step, the documentary requirements at every stage, the most costly errors foreign investors make. Cost ranges to expect. Additionally, a decision checklist to help you choose the right structure for your specific situation.
Choosing the right state and entity structure
The United States has no single national company register. Every entity is incorporated under the corporate legislation of a specific state. That state's law governs the company's internal affairs – shareholder rights, board of directors powers, and the rules for passing a shareholder resolution – regardless of where the business actually operates.
Two states dominate for foreign investors: Delaware and Wyoming. Delaware's corporate legislation is the most developed in the country. Its Court of Chancery has produced decades of case law on director liability, minority shareholder protection, and fiduciary duties. US venture capital funds and institutional investors almost universally require a Delaware entity. Wyoming has attracted attention for its strong privacy rules and low annual fees, but it carries less credibility with sophisticated US counterparties.
A foreign investor choosing between a limited liability company and a corporation faces a genuine trade-off. The Delaware LLC offers pass-through taxation by default and flexible governance. Members can structure the operating agreement to allocate profits, voting rights, and management authority almost entirely as they wish. There is no requirement for a board of directors, no mandatory annual meetings, and no prescribed form for a shareholder resolution. This flexibility suits closely held businesses and family offices.
A Delaware C-Corporation, by contrast, is the standard vehicle for technology startups seeking US venture funding. It supports multiple share classes, stock option plans, and the investor protections that US funds expect. The cost is a heavier compliance burden: annual meetings, board resolutions, and a more rigid corporate structure governed by corporate legislation and case law developed over more than a century.
An S-Corporation is available only to US tax residents and citizens, so foreign nationals are excluded from that structure. This is a common misconception. Many foreign investors arrive believing they can elect S-Corporation status to achieve pass-through taxation with a corporation. They cannot. Failing to understand this at the outset can produce unexpected federal tax consequences that are difficult to unwind.
If the foreign investor's business will operate primarily in one US state. running a retail operation in California. For example. incorporating in Delaware and then registering as a foreign entity in California creates dual compliance obligations. In that scenario, incorporating directly in the operating state can reduce cost and complexity. The decision turns on whether Delaware's legal credibility and flexibility are worth the additional filing and annual reporting fees in a second state.
For clients expanding from other markets, our analysis of corporate law in the United States sets out the broader regulatory environment, including federal and state-level compliance requirements that continue after formation.
Step-by-step formation procedure and timeline
The formation process has six distinct stages. Each has its own authority, timeline, and documentary requirements. A delay at any stage cascades forward.
Step 1 – Name reservation and availability check (Days 1–2)
Before filing, confirm the proposed company name is available in the chosen state. Delaware's Division of Corporations provides same-day availability searches. The name must include a required suffix: "LLC", "L.L.C.", "Corp.", "Inc.", or equivalent. Names that imply regulated activity – banking, insurance, or investment – require additional approvals and are best avoided at the naming stage.
Step 2 – Appoint a registered agent (Days 1–3)
Every US entity must maintain a registered office with a physical street address in the state of incorporation. This address must be staffed during business hours to accept legal process and official correspondence. A foreign investor cannot use a post office box. The registered agent receives service of process if the company is sued in a US District Court or state court. Annual registered agent fees typically range from a few hundred to several hundred dollars per year.
Step 3 – File formation documents (Days 1–5)
For an LLC, the formation document is the Articles of Organization (equivalent in function to articles of association in civil law jurisdictions). For a corporation, it is the Certificate of Incorporation. Both are filed with the state authority – in Delaware, the Division of Corporations. Delaware's standard processing time is one business day for expedited filings. State filing fees vary by entity type and are typically in the range of a few hundred dollars.
The formation document itself is brief. It states the entity name, registered agent, and – for a corporation – the authorised share structure. The substantive governance terms are set out in a separate document: the Operating Agreement for an LLC, or the Bylaws for a corporation. These internal documents do not need to be filed with the state but are legally binding among the owners. Drafting them poorly is one of the most consequential mistakes a foreign investor can make.
Step 4 – Obtain a federal Employer Identification Number (Weeks 1–3)
The Employer Identification Number (EIN) is issued by the Internal Revenue Service (IRS) and functions as the company's federal tax identity. Without an EIN, the entity cannot open a bank account, hire employees, or file tax returns. Foreign-owned entities that do not have a US-based responsible party must apply by fax or mail rather than online. This extends the timeline. Processing takes two to four weeks by fax and can take longer by mail. This single administrative step is frequently the bottleneck for foreign investors who assumed the process would be faster.
Step 5 – Draft and execute the Operating Agreement or Bylaws (Weeks 2–4)
The Operating Agreement (for an LLC) or Bylaws (for a corporation) governs the internal life of the company. It sets out how profits are distributed, how decisions are made, what happens if a member or shareholder wants to exit, and how disputes are resolved. Many foreign investors use generic templates. This is a material risk. A template Operating Agreement may not reflect the actual ownership intentions of the parties. May not include dispute resolution provisions pointing to JAMS or AAA arbitration. Additionally, may omit the tax elections that determine how the entity is treated for federal purposes.
For a single-member LLC with a foreign individual owner, a specific tax election is required to treat the entity as a corporation rather than a disregarded entity. Depending on the investor's tax exposure in their home jurisdiction. The tax consequences of getting this wrong can exceed the cost of proper legal advice by a wide margin.
Step 6 – Open a US bank account (Weeks 3–8)
Opening a US bank account is consistently the most frustrating step for foreign investors. US banks apply extensive Know Your Customer (KYC) and Anti-Money Laundering (AML) procedures to foreign-owned entities. Requirements typically include certified copies of formation documents, proof of registered office, EIN confirmation. Identification for all beneficial owners holding above a threshold percentage of the entity, and. in many cases. an in-person visit to a US branch. Some community banks and fintech-backed business accounts offer remote verification. Traditional money-centre banks generally do not. Planning for the banking step early, and selecting the right institution for the investor's profile, saves weeks of delay.
To explore how acquisition structures interact with company formation in cross-border contexts, see our guide to mergers and acquisitions in the United States, which covers post-formation ownership structuring and deal mechanics.
Documentary checklist and common errors by foreign investors
Foreign investors consistently underestimate the documentary burden at the banking stage. The documents required for state registration are minimal. The documents required to satisfy a US bank's compliance team are substantially more extensive.
The core documentary checklist for a foreign-owned US entity includes:
- Certified copy of formation document (Articles of Organization or Certificate of Incorporation)
- Executed Operating Agreement or Bylaws, including the identity of all members or shareholders
- EIN confirmation letter from the IRS
- Proof of registered office address and registered agent appointment
- Certified identification documents for all beneficial owners – typically passport copies with apostille or notarisation, depending on the bank's requirements
Several errors recur with foreign investors approaching US company registration. The first is treating company formation as a one-time administrative task rather than the opening step of an ongoing compliance obligation. After formation, a Delaware LLC must pay an annual franchise tax and file an annual report. A Delaware C-Corporation faces more extensive annual obligations. Missing these deadlines results in administrative dissolution – a state where the entity loses its good standing and, in some cases, its legal existence. Restoring good standing requires paying back taxes, penalties, and reinstatement fees.
The second common error is selecting the wrong state without analysing the operational footprint. An investor who incorporates in Delaware but conducts all business in New York will need to register as a foreign entity in New York. Pay New York franchise taxes. Additionally, comply with New York corporate legislation in addition to Delaware requirements. The perceived advantages of Delaware incorporation may be outweighed by dual-state costs for a business with a single-state presence.
The third error – and the most legally consequential – is failing to document the initial capitalisation of the company correctly. Under US corporate legislation, a company must be properly funded at formation. An undercapitalised entity, or one where the owners have not distinguished their personal funds from company funds, is vulnerable to a doctrine known as piercing the corporate veil. This allows a court – including a US District Court hearing a commercial dispute – to hold the individual owner personally liable for the company's debts. Maintaining separate bank accounts, documenting capital contributions, and holding the entity at arm's length from the owner's personal finances are not formalities. They are the foundation of limited liability protection.
A fourth error affects investors who plan to hire employees. US employment legislation operates at both federal and state levels. Before the first employee is hired, the company must register for state payroll taxes, comply with workers' compensation requirements, and in some states obtain additional licences. Foreign investors who hire without completing these steps expose the company to significant back-tax liability and penalties.
For investors who have also established or are considering structures in Latin American markets. Our guide to company formation in Brazil provides a useful comparison of civil law formation requirements and the additional steps that arise in a dual-jurisdiction operating structure.
Decision checklist: matching structure to your scenario
This approach in the United States is applicable if the following conditions are met. Before selecting an entity type and state, verify each factor against your specific situation.
Delaware LLC is appropriate if:
- The business is closely held with two or fewer owners and no plans for institutional investment
- The investor's home jurisdiction tax treaty with the US makes pass-through taxation advantageous
- Governance flexibility is a priority and no standardised investor rights are required
- The business will operate across multiple US states or primarily online
Delaware C-Corporation is appropriate if:
- The investor anticipates seeking US venture capital or angel investment within 12 to 24 months
- The business model requires issuing stock options to employees or advisors
- Multiple share classes with different voting and economic rights are needed
- The investor intends to list on a US exchange or engage in an M&A exit within a defined horizon
Single-state incorporation (non-Delaware) is appropriate if:
- All business operations will be conducted in one state and there is no plan to expand nationally
- The investor is cost-sensitive and the dual-compliance burden of Delaware-plus-foreign-registration outweighs Delaware's legal advantages
- The business sector is regulated at the state level in ways that require local incorporation
Before initiating the procedure, verify:
- Whether your home country has a tax treaty with the United States that affects how the entity will be taxed at the investor level
- Whether the business activity requires a federal or state licence before operations can begin
- Whether any beneficial owner is a citizen or national of a country subject to US investment restrictions, which may trigger review under investment legislation governing foreign investment in certain sectors
- Whether the investor's visa status, if entering the US to manage the company, is consistent with the planned business activities
When the business involves acquiring an existing US company rather than forming a new one, the decision logic shifts. Acquisition structures bring additional due diligence obligations, representations and warranties, and post-closing integration steps. The initial formation of an acquisition vehicle is only the first step in that sequence.
For a preliminary review of your company formation situation in the United States, email info@ferrazwhitmore.com to discuss your structure with our team.
Frequently asked questions
Q: How long does company formation in the United States take for a foreign investor?
A: State registration – the foundational step – typically takes between one and five business days in Delaware when expedited filing is requested. Federal tax registration follows and may add two to four weeks. The full timeline, from state filing to an operational bank account, is commonly four to eight weeks for foreign-owned entities, though banking due diligence can extend this period.
Q: Does a foreign investor need to be physically present in the United States to form a company?
A: Physical presence is not required for state registration or federal tax enrollment. However, opening a US bank account almost always requires an in-person visit or, at a minimum, video-verified identity procedures. Appointing a registered agent with a US address is a mandatory legal requirement and satisfies the registered office obligation without the foreign investor being present.
Q: Is a Delaware LLC always the best choice for foreign investors entering the US market?
A: A Delaware LLC is a popular starting point due to its flexible governance rules, well-developed corporate case law, and credibility with US investors. It is not, however, the right structure in every situation. Foreign investors seeking venture capital funding may be steered toward a Delaware C-Corporation. Those operating primarily in one state may find that registering locally avoids dual-state compliance costs. The correct choice depends on the investor's tax profile, funding plans, and operational footprint. Engaging a lawyer in the United States with cross-border experience from the outset prevents structural choices that are costly to reverse.
About Ferraz & Whitmore
Ferraz & Whitmore is an international law firm based in Lisbon, advising business clients across 46 jurisdictions. Our team combines Portuguese civil law expertise with English common law tradition to deliver cross-border legal solutions in company formation and corporate structuring in the United States. We work with international entrepreneurs, institutional investors, and in-house legal teams who need results-oriented counsel when entering or expanding within the US market. Our corporate practice has supported foreign-owned entities through Delaware and multi-state formation processes, federal tax registration, and banking compliance procedures. The firm's common law heritage provides particular depth in advising on US corporate governance, SEC-adjacent structuring considerations, and dispute resolution provisions referencing JAMS or AAA arbitration in Operating Agreements and shareholder agreements. As an international law firm with deep experience in US market entry, Ferraz & Whitmore bridges the gap between civil law business traditions and the demands of US corporate legislation. To discuss your company formation goals in the United States, contact us at info@ferrazwhitmore.com.
Disclaimer: This publication is provided for informational purposes only and does not constitute legal advice. The information herein should not be relied upon as a substitute for professional legal counsel tailored to your specific circumstances. Ferraz & Whitmore assumes no liability for actions taken or not taken based on the contents of this material. For advice regarding your particular situation, please contact info@ferrazwhitmore.com.