If you’re a non-U.S. resident from Serbia, Croatia, Romania, or anywhere in Eastern Europe looking to start a U.S. LLC, one of the first roadblocks you’ll hit is the EIN question. Many founders assume this federal tax ID is only available to Americans, or that the process is too complicated to handle from abroad. Neither is true. An Employer Identification Number is a federal tax ID the IRS assigns to identify your business entity for tax purposes, and non-U.S. residents can absolutely get one. This guide walks you through exactly how.
Table of Contents
- Understanding the EIN: What it is and why it matters
- How non-U.S. owners can apply for an EIN
- EIN requirements for LLCs: Single-member vs. multi-member
- What non-U.S. founders need to know: Avoiding pitfalls and common misconceptions
- What most guides miss: The real-world EIN experience for Eastern European founders
- Ready to simplify EIN and LLC formation? Expert help for non-U.S. founders
- Frequently asked questions
Key Takeaways
| Point | Details |
|---|---|
| EIN is essential | Every U.S. LLC needs an EIN for tax, banking, and compliance purposes. |
| Free and direct from IRS | You can get an EIN for free without paying any third party using IRS-approved international methods. |
| Non-U.S. path differs | Non-U.S. owners typically use IRS phone, fax, or mail for EIN applications, not the online portal. |
| Correct documents matter | Accurate information and the right documents prevent delays and compliance issues. |
| Plan for extra processing time | International EIN applications can take weeks, so start the process early. |
Understanding the EIN: What it is and why it matters
Think of an EIN the way you think of a Social Security Number, but for your business rather than for you personally. The IRS uses this nine-digit number to track your LLC’s tax obligations, filings, and identity within the U.S. financial and regulatory system.
Understanding U.S. Tax ID basics is the starting point for any non-resident operating a U.S. entity. Without an EIN, your LLC essentially doesn’t exist in the eyes of the IRS.
Here’s why your EIN matters in practice:
- ✅ Tax filing: Your LLC must report income and activity to the IRS using its EIN. This is non-negotiable.
- ✅ Business bank accounts: Almost every U.S. bank requires an EIN before they’ll open an account for your LLC.
- ✅ Hiring employees: If you ever bring on U.S.-based staff, you cannot process payroll without an EIN.
- ✅ Vendor and client compliance: Many U.S. companies require your EIN before they can pay you or issue a 1099 tax form.
- ✅ Federal and state licensing: Certain business licenses and permits at the state level require your EIN as part of the application.
The bottom line: An EIN assigned by the IRS is your business’s core identity number for all federal tax matters. Without it, you can’t operate properly in the U.S. financial system, no matter how solid your LLC formation documents are.
For Eastern European founders, this step often gets skipped or delayed because it feels unfamiliar. But getting your EIN in order early saves a lot of headaches down the road, especially when clients or banks start asking for it immediately.
How non-U.S. owners can apply for an EIN
With a clear understanding of the EIN, let’s examine exactly how you can apply as a non-U.S. resident.
The IRS offers multiple EIN application routes: online, by phone, by fax, and by mail. For many U.S.-based applicants, the online tool is fast and straightforward. But if you’re applying from Serbia or another country outside the U.S., your options are more limited.
Here’s why: a foreign owner cannot use the IRS online tool unless the responsible party (the person in control of the LLC) has a U.S. Social Security Number (SSN) or Individual Taxpayer Identification Number (ITIN). Most non-U.S. residents don’t have either, which means the online application simply won’t work for you.
Instead, you’ll use one of these methods:
- Phone: Call the IRS Business & Specialty Tax Line. International applicants can call the IRS at +1-267-941-1099 (not a toll-free number). You’ll answer questions about your LLC verbally, and an IRS agent will issue your EIN immediately if everything checks out.
- Fax: Complete IRS Form SS-4 and fax it to the IRS. International applicants fax to a specific number, and approval typically takes four business days.
- Mail: Complete Form SS-4 and mail it to the IRS. This is the slowest option and can take four weeks or longer for international applicants.
The IRS requires you to identify a “responsible party” on the EIN application form. This is the individual who controls the LLC and its assets. If you have an ITIN, this process becomes much smoother. If you don’t, the phone or fax route often works best with careful preparation.
| Application method | Available to non-U.S. residents | Typical processing time |
|---|---|---|
| Online (IRS tool) | ❌ Rarely (SSN/ITIN required) | Instant |
| Phone (+1-267-941-1099) | ✅ Yes | Same day |
| Fax | ✅ Yes | 4 business days |
| ✅ Yes | Up to 4 weeks |
Check out our step-by-step guide for global founders if you want a full walkthrough from LLC formation to EIN approval.
Pro Tip: Before you call the IRS, have your completed Form SS-4 in front of you. The agent will ask every field on the form verbally. Being unprepared can lead to errors that delay your EIN or require you to call back and start over. Practice reading through the form once beforehand.
Our LLC registration process overview can help you understand how EIN fits within the broader formation steps, especially if you’re starting fresh.
EIN requirements for LLCs: Single-member vs. multi-member
Having mapped out the application process, it’s vital to know the exact circumstances when your LLC truly requires an EIN.
The rules differ based on how your LLC is structured. Here’s a clear breakdown:
| LLC type | EIN required? | Key notes |
|---|---|---|
| Single-member LLC (no employees, no excise tax) | Not always | Disregarded entity rules may apply |
| Single-member LLC (with employees or excise tax) | ✅ Yes | IRS requirement |
| Multi-member LLC | ✅ Always | Treated as partnership for tax |
| Any LLC opening a U.S. bank account | ✅ Practically always | Banks require EIN |
| Any LLC with non-resident foreign owner | ✅ Strongly recommended | Compliance and tax reporting |
For single-member LLCs, the IRS rules have an edge case: if your LLC is a “disregarded entity” (meaning the IRS treats it as if it doesn’t exist separately from you) and you have no employees and no excise tax obligations, you technically may not need an EIN. This is a narrow exception.
In practice, if you’re a non-U.S. resident, you almost always need an EIN anyway. Here’s why:
- 📌 Banking: Every major U.S. bank will ask for your EIN to open a business checking account.
- 📌 Form 5472 filing: Foreign-owned single-member LLCs must file LLC IRS forms including Form 5472, which requires an EIN.
- 📌 Contractor payments: U.S. clients paying your LLC will often request a W-9 or equivalent, which requires your EIN.
- 📌 Avoiding personal liability confusion: Operating without an EIN blurs the line between you and your LLC, which undermines the legal protection the LLC structure provides.
Multi-member LLCs have no flexibility here. Every multi-member LLC must get an EIN because the IRS treats them as partnerships, and partnership tax returns cannot be filed without one.
For a deeper look at your tax filing obligations as a non-resident LLC owner, review our guide on LLC tax filing for non-residents.
Pro Tip: Even if your single-member LLC technically doesn’t require an EIN under the IRS’s disregarded entity rules, apply for one anyway. You will almost certainly need it the moment you try to open a bank account, accept a payment from a U.S. client, or file any IRS form. Getting it now takes effort once. Scrambling for it later wastes time and can delay critical business operations.
What non-U.S. founders need to know: Avoiding pitfalls and common misconceptions
With requirements clarified, it’s important to steer clear of common risks and errors that trip up global founders.
The biggest mistake we see? Founders paying a third party for an EIN. The IRS explicitly warns that you never have to pay a fee to get an EIN. It is a free government service. If a website is charging you $50 to $200 just for the EIN itself (not as part of a broader formation service), you’re being overcharged for something the IRS provides at no cost.
Here are the most common pitfalls and how to avoid them:
- ❌ Paying for the EIN itself: Never pay a standalone fee for EIN issuance. It’s free from the IRS.
- ❌ Listing the wrong responsible party: The responsible party must be a real individual who controls the LLC and its funds, not a company name or a nominee. Errors here cause rejections.
- ❌ Using the online tool without an SSN/ITIN: As noted earlier, this route simply won’t work for most non-residents. Don’t waste time trying it.
- ❌ Filing SS-4 with incomplete information: Missing fields or wrong entity type selections can lead to delays of weeks or even rejections that require resubmission.
- ❌ Underestimating mail processing time: If you choose the mail route, expect up to four weeks or more. Plan around this timeline so it doesn’t hold up your banking or client onboarding.
- ❌ Not following up: If you applied by fax and haven’t received a response in five business days, it’s worth calling the IRS to check on the status.
If you want to understand the full spectrum of risks that non-residents face in the U.S. business formation process, our guide on common mistakes non-residents make is a must-read.
The good news is that once you know what to watch out for, the EIN process is manageable. Preparation is everything. Read Form SS-4 carefully before submitting, double-check your LLC name matches your formation documents exactly, and confirm you have the responsible party’s information ready before you contact the IRS.
For a broader view of the full setup journey, our resource on business formation for non-residents gives you the complete picture from state registration through to federal compliance.
What most guides miss: The real-world EIN experience for Eastern European founders
Most articles about EINs are written for a U.S. audience. They assume you already have an SSN, know how the IRS phone system works, and feel comfortable navigating U.S. bureaucracy. That’s not the reality for most founders calling from Belgrade, Bucharest, Zagreb, or Kyiv.
Here’s what we’ve seen consistently when helping Eastern European founders through this process.
Underestimating the time and paperwork. Many founders assume getting an EIN is a one-hour task. Sometimes it is. But if you hit a problem with your Form SS-4, if the IRS agent asks a question you weren’t expecting, or if your fax doesn’t go through correctly, you can lose days or weeks. Build extra time into your planning. Don’t schedule your first client call or bank account opening assuming your EIN will arrive within 48 hours.
Communication and language clarity. When you call the IRS, you’ll speak with an agent who is following a strict protocol. Your English doesn’t need to be perfect, but your answers need to be clear and consistent with what’s on your Form SS-4. Vague or inconsistent answers cause confusion and can lead the agent to put your application on hold. Prepare written answers to common questions before you call. Read them out clearly if needed.
Attention to every single field on Form SS-4. Eastern European founders often struggle with fields that seem straightforward but aren’t. For example, the “type of entity” field requires you to select the correct legal classification of your LLC. The “reason for applying” field needs a specific, accurate answer. Getting these wrong doesn’t just slow things down. It can result in a rejection that requires you to start over.
Patience as a strategy, not a fallback. The U.S. government system moves at its own pace. Faxing on a Monday doesn’t guarantee a response by Friday. This isn’t a failure of the system. It’s just how it works. The founders who succeed with the LLC steps for global founders are the ones who front-load their preparation, then wait patiently with a clear follow-up plan.
The honest truth is that the EIN process has a learning curve, but it’s not impossible. Hundreds of Serbian and Eastern European entrepreneurs successfully get their EINs every year and go on to build thriving U.S. businesses. The difference between a smooth experience and a frustrating one is almost always preparation.
Ready to simplify EIN and LLC formation? Expert help for non-U.S. founders
Navigating U.S. bureaucracy from abroad takes time, attention to detail, and the right support. If you want to avoid the back-and-forth of trial and error, we’re here to help.
At our firm, we specialize in helping non-U.S. residents from Serbia, Eastern Europe, and around the world handle every step of U.S. business setup with confidence. From LLC registration services to EIN applications, annual filings, and ongoing compliance, we manage the details so you can focus on building your business. We understand the specific challenges international founders face, and we know how to get things right the first time. Explore our business formation essentials to see how we can support your journey from day one.
Frequently asked questions
Can a Serbian or Eastern European citizen get an EIN for a U.S. LLC?
Yes, non-U.S. residents from Serbia or Eastern Europe can obtain an EIN for their U.S. LLC. Because they typically lack a U.S. SSN or ITIN, they must use IRS international application methods such as phone, fax, or mail rather than the online tool.
Does a single-member LLC with no employees always need an EIN?
Not always. A single-member LLC treated as a disregarded entity with no employees or excise tax obligations may technically not require an EIN, but most non-U.S. owners obtain one anyway for banking and tax compliance purposes.
What documents do I need for the EIN application?
You’ll need your LLC formation documents, a completed Form SS-4, and the responsible party’s personal information, including an SSN or ITIN if available. Having all of this ready before you contact the IRS speeds up the process considerably.
Is there a fee to get an EIN from the IRS?
No. The IRS issues EINs completely free of charge and explicitly warns business owners never to pay a third party just for EIN issuance. Any service charging a standalone fee for the EIN itself is not legitimate.
How long does it take to get an EIN as a non-U.S. resident?
By phone, you can receive your EIN the same day. By fax, expect about four business days. If you apply by mail, international processing can take up to four weeks, so plan your business timeline accordingly.
