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U.S. LLC guide for foreign partners in a US LLC based in Denmark
LLC15 min read

U.S. LLC for foreign partners in a US LLC from Denmark

Foreign partners in a U.S. LLC from Denmark face specific hurdles, particularly regarding tax identification. This guide clarifies the process for obtaining an ITIN and meeting U.S. tax obligations.

Reviewed by , ITIN Specialist at itin.net.

U.S. LLC for Danish Residents: Specific Hurdles

Foreign partners in a U.S. LLC based in Denmark encounter unique challenges, primarily centered on U.S. tax identification requirements. Unlike U.S. residents, you cannot obtain a Social Security Number (SSN) for tax identification purposes. This means you'll need an Individual Taxpayer Identification Number (ITIN) to file your U.S. tax returns and receive necessary tax documents from the LLC. The Denmark–U.S. tax treaty is in place, but understanding its implications for your specific U.S. LLC structure and income is critical. Failure to secure the correct tax identification can lead to significant penalties and tax complications, even if your LLC is purely for foreign investment or e-commerce without a physical U.S. presence. This guide focuses on the procedural steps for obtaining an ITIN and fulfilling U.S. tax obligations as a foreign partner in a U.S. LLC.

When a U.S. LLC is Required for Danish Residents

Forming a U.S. LLC is often required or highly beneficial for Danish residents engaging in certain U.S. business activities. If you are operating an e-commerce store selling directly to U.S. customers, running a SaaS business with U.S. subscribers, or engaging in U.S. real estate investments, a U.S. LLC provides a recognized legal structure. It separates your personal assets from business liabilities, a crucial protection for foreign investors. While not always mandatory for passive foreign investment, a U.S. LLC becomes essential when you have active U.S. operations, employees, or significant revenue streams within the United States. This structure facilitates easier access to U.S. banking and payment processors, which can be challenging for non-U.S. entities. The IRS requires specific reporting, such as Form 5472, for foreign-owned U.S. disregarded entities and multi-member LLCs, making proper formation and compliance vital from the outset. For Danish partners, this means understanding that U.S. tax law applies to income generated through this U.S. entity.

Essential Documents for Your U.S. LLC

Establishing a U.S. LLC involves several key documents. The foundational document filed with the state is the Articles of Organization. This public filing officially creates your LLC. While the Articles of Organization are state-specific, they generally require the LLC's name, its business purpose, the name and address of a registered agent within the state of formation, and sometimes the names of the initial members or managers. Following the state filing, you will need an Operating Agreement. This is a private, internal document that outlines the ownership structure, member responsibilities, profit and loss distribution, and operational procedures of the LLC. It is not filed with the state but is crucial for internal governance and demonstrating the LLC's legitimacy. For foreign partners, you will also need your passport for identification. To conduct business and manage finances, your LLC will require an Employer Identification Number (EIN) from the IRS. Finally, each foreign partner will need an ITIN to report their share of the LLC's income on their personal U.S. tax returns.

Step-by-Step U.S. LLC Formation and ITIN Application Process

The process begins with selecting a U.S. state for your LLC formation; Delaware, Wyoming, and Nevada are popular choices for non-residents due to their business-friendly laws. You will file the Articles of Organization with the chosen state's business registry. Concurrently, or shortly after, you should draft your Operating Agreement. Once the LLC is formed, you must obtain an EIN using IRS Form SS-4. This can be done online if you have a U.S. address, or via fax/mail for non-residents. The typical timeline for LLC formation is 5–10 business days, with expedited options often available. After formation and securing an EIN, each foreign partner must apply for an ITIN using IRS Form W-7. You can submit Form W-7 directly to the IRS or, for a more streamlined process, through a Certified Acceptance Agent (CAA). The IRS processes ITIN applications; direct applications can take 11–17 weeks, while CAA applications typically expedite this to 5–7 weeks. It's vital to have all documentation in order before submitting, as incomplete applications are a common cause for delay.

Common Pitfalls for Danish Partners in U.S. LLCs

Danish partners forming a U.S. LLC often overlook critical compliance steps. A frequent mistake is failing to understand state-specific franchise taxes or nexus requirements. For instance, forming in California or New York without a physical presence can lead to substantial annual tax liabilities. Another common pitfall is neglecting the Operating Agreement; while not filed publicly, it is essential for defining roles, responsibilities, and profit distribution, preventing future disputes among partners. The Beneficial Ownership Information (BOI) reporting requirement, managed by FinCEN, is also frequently missed. U.S. LLCs must report beneficial ownership information within 90 days of formation (or 30 days for entities formed in 2024), with ongoing annual updates. Failure to comply can result in significant civil and criminal penalties. For Danish partners, ensuring accurate ITIN applications and understanding U.S. tax filing obligations, including Form 5472 for reporting transactions with related foreign parties, is paramount.

The Certified Acceptance Agent (CAA) Advantage

As a Certified Acceptance Agent (CAA), itin.net offers a distinct advantage for Danish partners applying for an ITIN. When you apply directly to the IRS with Form W-7, you must mail original or certified copies of your identification documents, such as your passport. This can be a lengthy and anxious process, as you are without your original documents for an extended period. Using a CAA like itin.net allows us to verify your original identification documents in person and forward your certified application package to the IRS. This means you retain your original passport throughout the process. Furthermore, CAAs are trained to ensure your application is complete and accurate before submission, significantly reducing the chances of rejection due to common errors. This streamlined approach saves time and provides peace of mind, allowing you to focus on your U.S. business operations rather than navigating complex IRS procedures alone.

Next Steps After LLC Formation and ITIN Application

Once your U.S. LLC is formed and you have received your ITINs, the next crucial step is establishing a U.S. bank account. U.S. banks typically require an EIN and Articles of Organization for account opening. Services like Mercury, Relay, or Brex cater to non-resident founders and can be explored. For multi-member LLCs taxed as partnerships, you'll need to file an annual U.S. partnership tax return (Form 1065) and issue Schedule K-1s to each partner detailing their share of income, deductions, and credits. Each foreign partner must then file their individual U.S. non-resident tax return (Form 1040-NR), reporting the income from their U.S. LLC and claiming any applicable foreign tax credits or treaty benefits. Understanding these ongoing compliance requirements is as important as the initial formation. Review the pricing for itin.net's services or contact us for personalized assistance with your U.S. business setup and tax compliance needs.

Practical tips

  • Ensure your legal name on Form W-7 exactly matches your passport and any other official identification to avoid application delays.
  • Accurately report any transactions between your U.S. LLC and your foreign entities or yourself on Form 5472 to avoid substantial penalties.
  • Maintain a clear and detailed Operating Agreement that outlines profit and loss distribution, even for a two-person LLC, to prevent future disputes.
  • Understand that even without a physical U.S. presence, your U.S. LLC is subject to U.S. tax filing obligations, including partnership returns if applicable.
  • Factor in the time for ITIN application processing (up to 17 weeks directly with the IRS, or 5-7 weeks via a CAA) when planning your business launch timeline.

Frequently asked questions

Do I need a U.S. visa to form a U.S. LLC as a Danish resident?

No, you do not need a U.S. visa to form a U.S. LLC. U.S. law allows non-residents to own and operate U.S. businesses without residing in the U.S. or holding a specific visa.

How does the Denmark–U.S. tax treaty affect my U.S. LLC income?

The Denmark–U.S. tax treaty aims to prevent double taxation. It may reduce or eliminate U.S. withholding taxes on certain types of income paid to Danish residents. However, the specifics depend on the nature of the income and the structure of your U.S. LLC. Consulting with a tax professional familiar with the treaty is recommended.

Can I open a U.S. bank account for my LLC from Denmark?

Yes, but it can be challenging. Many U.S. banks require a physical U.S. address and in-person visit. However, some online banks and financial technology companies (like Mercury, Relay, or Brex) specialize in serving non-resident founders and may offer remote account opening options for your U.S. LLC. You will typically need your EIN and formation documents.

What is the BOI (Beneficial Ownership Information) filing, and do I need it?

Yes, most U.S. LLCs, including those owned by foreign partners, are required to file a Beneficial Ownership Information (BOI) report with the U.S. Department of the Treasury's Financial Crimes Enforcement Network (FinCEN). This report identifies the individuals who ultimately own or control the LLC. There are specific deadlines and penalties for non-compliance. Consult a professional for detailed guidance.

How long does it take to get an ITIN for my U.S. LLC partners?

Directly from the IRS, an ITIN application (Form W-7) can take 11–17 weeks. If you use a Certified Acceptance Agent (CAA) like itin.net, the process is typically expedited to 5–7 weeks because we pre-verify your documentation.

Do I need to file a U.S. tax return if my LLC has no U.S. operations?

If your U.S. LLC is structured as a partnership or a disregarded entity owned by a foreign person, you generally must file U.S. tax returns (e.g., Form 5472 for reporting transactions, and potentially Form 1065 for partnership income) regardless of U.S. operations, to report income and avoid penalties.

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