Complete Guide to U.S. Company Registration Procedures, Required Documents, Subsidiary Establishment, and Trademark Registration-all in One

Conducting business in the United States-whether by registering a company, establishing a subsidiary, or protecting a brand-is an essential and often unavoidable step for many Chinese enterprises and individual entrepreneurs. In 2026, U.S. states continue to streamline and optimize corporate registration procedures. Delaware and Wyoming remain the top choices for foreign investors; however, California and New York have significantly strengthened their compliance disclosure requirements. Meanwhile, beginning October 2026, the United States Patent and Trademark Office (USPTO) will fully deploy the upgraded version of the Trademark Electronic Search System (TESS), reducing the average trademark examination timeline to 7.2 months. At the same time, scrutiny of applicants’ “bona fide intent to use” the mark-and the completeness and credibility of supporting evidence-has become notably more rigorous.

I. Core Requirements and Practical Steps for U.S. Company Registration

The United States does not maintain a unified federal-level corporate registration system; instead, registration is administered at the state level. The two most common entity types are the Limited Liability Company (LLC) and the C-Corporation (C-Corp). Prior to registration, the following foundational considerations must be addressed

1. Selecting the State of Registration

The choice of state should not be based solely on the location of actual operations. Key factors include tax burden, privacy protection, and annual reporting costs. For example, Wyoming imposes no state income tax and does not require public disclosure of member information; however, it mandates appointment of a registered agent physically located within the state.

2. Company Name Availability

The proposed company name must be unique and not already in use. A real-time name availability search must be conducted via the official website of the target state’s Secretary of State.

3. Appointment of a Registered Agent

A registered agent-a person or licensed entity with a physical street address in the state-must be designated to receive legal documents and official correspondence on behalf of the company.

4. Filing Organizational Documents

Articles of Organization (for LLCs) or Articles of Incorporation (for C-Corps) must be filed. These documents typically include the company name, registered agent information, and management structure. Most states permit online filing, with effective date often granted the same day.

5. Obtaining an Employer Identification Number (EIN)

An EIN can be obtained free of charge via the Internal Revenue Service (IRS) website. A U.S. Social Security Number is not required. Non-resident aliens may apply using passport information.

6. Opening a U.S. Business Bank Account

Several banks-including Mercury and Brex-now accept remote Know-Your-Customer (KYC) verification. Required documentation generally includes the company’s formation certificate, IRS-issued EIN confirmation letter, and identity documents of the beneficial owner(s).

II. Key Distinctions in Establishing a U.S. Subsidiary by a Chinese Parent Company

Registering a U.S. subsidiary differs fundamentally from replicating domestic Chinese incorporation processes. Legally, the subsidiary is a separate and independent entity distinct from its parent. Critical considerations include

1. A U.S. subsidiary must be newly incorporated under U.S. law-a Chinese company cannot simply “transfer” or “migrate” its existing legal entity into the U.S. jurisdiction.

2. The Chinese parent company must appear as a shareholder in the U.S. registration documents, submitting notarized and authenticated copies of its business license and board resolution. Documents must be bilingual (Chinese and English) and certified either via the Hague Apostille Convention or consular legalization.

3. For a “holding-operating” structure, it is advisable to incorporate the parent as a Delaware C-Corp and the operating subsidiary as a California LLC-facilitating future fundraising and tax planning.

4. Once established, the U.S. subsidiary must file its own federal and state tax returns-consolidated filing with the Chinese parent is not permitted under U.S. tax law.

5. Cross-border capital contributions must be formally documented, e.g., via a shareholder loan agreement or formal capital increase instrument, to avoid IRS challenges regarding transfer pricing or improper profit shifting.

III. U.S. Brand Protection A Pragmatic Pathway from Search to Registration

Trademark registration with the USPTO constitutes the legal foundation for brand localization in the United States. Importantly, unregistered trademarks enjoy only limited, common-law-based rights-and no nationwide protection.

1. Comprehensive Pre-Filing Search

A thorough search is mandatory-not only in the USPTO’s TESS database but also for unregistered uses under common law (e.g., local storefront signage, unregistered e-commerce stores), domain names, and social media handles.

2. Distinctiveness Requirement

Marks must possess inherent or acquired distinctiveness. Purely descriptive terms (e.g., “Fast Delivery”) or generic terms (e.g., “Laptop Store”) are ineligible for registration.

3. Classification of Goods/Services

Applicants must specify the applicable Nice Classification classes (Classes 1-45). A single mark may be registered across multiple classes, but each class requires a separate filing fee.

4. Proof of Use

For applications filed under “Use in Commerce” Actual use evidence must accompany the application-e.g., product photographs bearing the mark, screenshots of live sales pages, and transaction records.

For “Intent-to-Use” (ITU) applications A Statement of Use must be submitted within six months after issuance of the Notice of Allowance (NOA). Up to five six-month extensions may be requested.

5. Publication and Registration

Upon approval, the application enters a 30-day opposition period during which third parties may file formal objections. If no opposition is filed-or if opposition is resolved in the applicant’s favor-the USPTO issues a Certificate of Registration approximately 12 weeks later. The registration is valid for 10 years. Between the fifth and sixth anniversaries of registration, the registrant must file a Declaration of Use (Section 8 Declaration) to maintain validity.

The above outlines the principal operational considerations for U.S. company registration, subsidiary establishment, and trademark protection. We recommend engaging a qualified U.S.-licensed attorney or CPA experienced in China-U.S. cross-border matters to conduct a pre-filing structural review. This helps mitigate risks-including bank account rejection due to state-specific statutory noncompliance, trademark office refusals stemming from procedural deficiencies, or inadvertent forfeiture of annual report compliance.