Entrepreneurs from Serbia, Romania, Croatia, and across Eastern Europe can launch a fully legitimate US LLC without ever setting foot on American soil, without a Social Security Number, and without a US address. That’s the good news. The harder truth is that the process involves state-by-state rules, strict IRS deadlines, and compliance traps that catch even experienced founders off guard. This guide walks you through every essential step, from picking the right state to staying on the right side of the IRS, so you can build your US business on solid ground from day one.

Table of Contents

• Choosing the right state and name for your US LLC
• Appointment of a registered agent and filing formation documents
• Essential requirements: The Operating Agreement and EIN
• Tax filing and compliance for foreign single-member LLCs
• Common edge cases and mistakes for non-resident founders
• Why most guides overlook the real compliance risks for non-residents
• Expert help forming your US LLC—avoid costly mistakes
• Frequently asked questions

Key Takeaways

Choosing the right state and name for your US LLC

To start, you’ll need to establish the location and identity of your new business. This decision matters more than most people realize, because the state you choose affects your annual costs, privacy protections, and long-term compliance obligations.

As a non-resident, you are not required to form your LLC in a state where you live or work. You have the freedom to choose any US state. That said, two states consistently stand out for international founders: Wyoming and Delaware.

Here’s why they’re popular:

• Wyoming offers low annual fees (around $60 per year), strong privacy protections (no public disclosure of member names), and no state income tax.
• Delaware is the preferred choice for startups seeking venture capital or institutional investors, thanks to its well-established corporate law and business-friendly courts.
• New Mexico is another option worth considering, with no annual report requirement and low formation fees, though it has less name recognition with US banks.

Before you settle on a state, compare these key factors:

Once you’ve chosen your state, you need a business name. Your LLC name must be unique and include “LLC” or the full phrase “Limited Liability Company.” Most state websites have a free name search tool to check availability. Avoid names that are too similar to existing businesses in that state, and stay away from restricted words like “Bank,” “Insurance,” or “Federal” unless you have the proper licenses.

Your name is also your brand, so think beyond legal compliance. Choose something that works well for your target market, is easy to spell, and ideally reflects your business type. You can check our non-resident LLC guide for more detail on naming rules by state, or explore the full start a US LLC walkthrough for 2026.

One more thing: once you confirm your name is available, consider reserving it. Most states allow a short-term name reservation for a small fee, which protects your chosen name while you finalize the rest of your paperwork.

Appointment of a registered agent and filing formation documents

Once your state and business name are ready, focus on official paperwork and legal contacts within the US. This is where many non-residents hit their first real obstacle: every US LLC must have a registered agent.

A registered agent is a person or company with a physical address in your state of formation who agrees to receive official legal and government documents on your behalf. This includes tax notices, lawsuit paperwork, and state correspondence. You cannot use a PO Box, and you cannot be your own registered agent if you don’t live in that state.

Here’s what you need to know about registered agents:

• Cost: registered agent services typically run $100 to $300 per year
• They must be available during normal business hours at the listed address
• Changing your registered agent later is possible but requires a state filing and a fee
• Reliability matters: if your agent misses a legal notice, you could face default judgments without even knowing

After securing a registered agent, you file your Articles of Organization (sometimes called a Certificate of Formation, depending on the state). This is the document that officially creates your LLC. Filing fees range from $50 to $500 depending on the state.

Here’s a quick overview of typical state filing fees:

The Articles of Organization typically ask for your LLC name, registered agent information, member names (in some states), and the purpose of the business. In states with strong privacy laws like Wyoming, member names may not be required in public filings.

Pro Tip: Choose a registered agent with a proven track record and responsive customer service. A missed notice from the IRS or your state can trigger penalties that far exceed the cost of a quality agent. Review our LLC registration steps for a state-by-state breakdown, or go directly to our US LLC registration page to get started.

Essential requirements: The Operating Agreement and EIN

With your basic entity formed, the next priority is internal structure and tax identification. These two elements, the Operating Agreement and the EIN, are what turn a registered LLC into a functioning business.

An Operating Agreement is a legal document that outlines how your LLC is owned and managed. It covers things like profit distribution, decision-making authority, what happens if a member leaves, and how the business can be dissolved. Even if your state does not legally require one, you should always have one. Without it, your state’s default LLC laws govern your business, which may not match your intentions.

Here’s a step-by-step process for getting your Operating Agreement and EIN in place:

1. Draft your Operating Agreement. You can use a template, but make sure it reflects your actual ownership structure and management style. If you have multiple members, this document is especially critical.
2. Sign and date the Operating Agreement. All members should sign it. Keep a copy with your business records.
3. Complete IRS Form SS-4. This is the application for an Employer Identification Number (EIN). As a non-resident, you apply via Form SS-4 by fax, mail, or phone. No Social Security Number is required.
4. Submit Form SS-4 to the IRS. International applicants typically call the IRS directly at their international line. Processing can take a few weeks by fax or mail, but phone applications are often processed the same day.
5. Receive your EIN. The IRS issues a confirmation letter (CP 575). Keep this document. You’ll need it for banking, tax filings, and vendor accounts.

Your EIN is the business equivalent of a Social Security Number. It identifies your LLC to the IRS, US banks, and payment processors. Without it, you cannot open a business bank account or accept payments through most US platforms.

Once you have your EIN, you can apply for a US business bank account. Banks like Mercury and Relay are known for accepting non-resident LLC owners. They operate online and do not require you to visit a branch in person. Having your Articles of Organization, Operating Agreement, and EIN letter ready will make the application process much smoother.

Pro Tip: Some founders try to open a bank account before getting their EIN. This almost always fails. Get your EIN first, then apply for banking. For a detailed walkthrough, visit our LLC requirements guide.

Tax filing and compliance for foreign single-member LLCs

After setup, staying compliant is critical to avoid substantial fines. This is the part of US LLC ownership that surprises most non-residents, because the IRS has specific and strict requirements for foreign-owned single-member LLCs.

If you are a non-US resident and the sole owner of a US LLC, the IRS classifies your company as a disregarded entity for tax purposes. That sounds like it means you can ignore it. It does not. In fact, foreign-owned single-member LLCs must file Form 5472 along with a pro forma (placeholder) Form 1120 every year, even if the LLC had zero income and zero expenses.

Here’s what you need to know about annual compliance:

• Form 5472 reports transactions between your LLC and related foreign parties, including capital contributions, loans, and payments.
• Pro forma Form 1120 is a simplified corporate tax return that serves as a cover sheet for Form 5472.
• The deadline is April 15 each year, with an extension available to October 15.
• Missing this filing carries a penalty of $25,000 or more per form, even if no money changed hands.

In addition to IRS filings, you must also file a Beneficial Ownership Information (BOI) report with FinCEN (the Financial Crimes Enforcement Network). This requirement was introduced in 2024 and applies to most small LLCs.

Key BOI deadlines:

• New LLCs formed in 2024: 90 days from formation
• New LLCs formed in 2025 or later: 30 days from formation
• Late filing penalty: $591 per day until the report is submitted

Beyond federal filings, most states require an annual report or statement of information to keep your LLC in good standing. Fees and deadlines vary by state. Missing your state’s annual report can result in your LLC being administratively dissolved, which means it loses its legal status.

For a full breakdown of what to file and when, visit our guide on Form 5472 and 1120 details or check our annual filing tips for non-residents.

Common edge cases and mistakes for non-resident founders

Even after handling compliance, founders encounter common traps that can derail their new business. Knowing these in advance saves you time, money, and stress.

Here are the most frequent mistakes non-residents make:

• Assuming no US presence means no extra filings. If you have a US office, warehouse, employees, or inventory stored in the US, you have what the IRS calls a physical nexus. This triggers additional tax obligations, including the need to register for foreign qualification in the state where your operations are located. You may also owe state income tax and sales tax in that state.
• Trying to elect S-Corp status. Non-US residents are not eligible to be shareholders in an S-Corporation. If you attempt this election, the IRS will reject it. Stick with the default LLC tax treatment or consult a tax advisor about C-Corp options if your situation requires a different structure.
• Confusing EIN and ITIN. An ITIN (Individual Taxpayer Identification Number) is a personal tax ID for individuals who don’t qualify for a Social Security Number. It is different from an EIN, which belongs to the business. An ITIN may be needed for certain personal tax filings but is not required to form an LLC or obtain an EIN.
• Forming in the wrong state. If you eventually establish a physical US presence in a state different from your formation state, you may need to register as a foreign LLC in that second state, paying fees and filing requirements in both.
• Missing state-level annual reports. Federal compliance gets most of the attention, but state-level annual reports are equally important. A dissolved LLC cannot legally do business, sign contracts, or open bank accounts.

Pro Tip: Keep a compliance calendar with every deadline for your LLC, including state annual reports, Form 5472 due dates, and BOI updates. A single missed deadline can cost more than a year of professional service fees. Our guide on avoiding LLC mistakes covers these scenarios in depth.

Why most guides overlook the real compliance risks for non-residents

Most online articles about forming a US LLC focus almost entirely on the formation process: pick a state, file some paperwork, get an EIN. That’s where they stop. And that’s exactly where the real risk begins.

We’ve seen founders from Serbia, Ukraine, and Romania successfully form their US LLCs in a weekend, then receive a $25,000 IRS penalty notice two years later because they didn’t know about Form 5472. The formation is the easy part. The ongoing compliance is what separates a functioning US business from an expensive legal liability.

The detailed tax filing guide we’ve built specifically addresses this gap. And our resource on BOI compliance in 2026 walks through the FinCEN requirements that most founders don’t even know exist until they’re already late.

Our honest take: formation is a one-time event. Compliance is a permanent responsibility. If you treat your US LLC as a “set it and forget it” structure, you’re taking on serious financial risk. The founders who succeed long-term are the ones who invest in ongoing support from the very beginning.

Expert help forming your US LLC—avoid costly mistakes

If you’re ready to move from learning to launching, you don’t have to navigate these steps alone. The process of forming and maintaining a US LLC as a non-resident involves real legal and tax obligations that require accurate execution.

We specialize in helping entrepreneurs from Serbia and across Eastern Europe register a US LLC with confidence. Our services cover everything from registered agent setup and Articles of Organization filing to EIN acquisition and annual compliance. You can also explore our LLC compliance services to stay on top of Form 5472, BOI reports, and state annual reports year after year. If you want to start by understanding what pitfalls to avoid, our guide on avoiding US LLC mistakes is a great first step.

Frequently asked questions

Can a non-resident open a US LLC without a Social Security Number?

Yes, non-residents can form a US LLC and obtain an EIN using Form SS-4 by fax, mail, or phone, with no Social Security Number required.

What annual reports are required for a single-member foreign-owned US LLC?

You must file IRS Forms 5472 and 1120 every year and submit a BOI report to FinCEN within 30 days of formation; missing these filings can result in penalties exceeding $25,000 per form and $591 per day for late BOI submissions.

Can non-US residents elect S-Corp status for their LLC?

No, non-residents cannot elect S-Corp status for their US LLC because S-Corporation shareholders must be US citizens or permanent residents.

Are ITINs required for non-residents to form or run an LLC in the US?

An ITIN is not needed for forming an LLC or getting an EIN, but an ITIN may be required for certain personal US tax filings depending on your situation.

What happens if the BOI report deadline is missed?

Missing the BOI deadline can result in a $591 per day penalty assessed by FinCEN until the report is properly submitted.

Recommended

• Form a U.S. Corporation as a Non-Resident: 2026 Guide
• Home – MyInc Team LLC
• LLC for Non-Residents: Step-by-Step Guide for Global Founders
• U.S. LLC Registration: How Non-Residents Can Start One