EIN for Foreign-Owned LLC (2026): How to Get Your Tax ID Number

If you own a US LLC as a foreign national, one of the very first things you need is an Employer Identification Number (EIN). Without it, you cannot open a business bank account, file your federal tax returns, or meet your IRS reporting obligations. Think of the EIN as your company's Social Security number — it is the unique identifier the IRS uses to track your business.

The good news? Getting an EIN is completely free, and foreign-owned LLCs are fully eligible to apply. The bad news? The process differs from what US residents experience, and mistakes can delay your application by weeks or even months.

This guide walks you through exactly how to get an EIN for your foreign-owned LLC in 2026, which method to use, common pitfalls to avoid, and what to do once you have your number.

What Is an EIN?

An Employer Identification Number (EIN) is a nine-digit number (formatted as XX-XXXXXXX) assigned by the Internal Revenue Service to identify a business entity for tax purposes. It is sometimes referred to as a Federal Tax Identification Number (FTIN) or a Federal Employer Identification Number (FEIN).

Every business entity in the United States — including single-member LLCs, multi-member LLCs, corporations, partnerships, and trusts — needs an EIN. Even if your LLC has no employees and earns no US-source income, the IRS still requires an EIN for tax reporting.

Your EIN is used on virtually every tax form you file, including Form 5472, Form 1120, and any state tax filings. It is also required by banks, payment processors, and vendors to verify your business identity.

Why Do Foreign-Owned LLCs Need an EIN?

Foreign-owned LLCs have specific obligations that make an EIN non-negotiable:

• Tax filing requirements: Even if your LLC has zero income, you must file Form 5472 with a Pro Forma Form 1120 annually. Both forms require your EIN.
• Business banking: No US bank will open a business account without an EIN. This is true for both traditional banks and online neobanks like Mercury or Relay.
• Payment processing: Stripe, PayPal, and other processors require an EIN to verify your business and issue 1099 forms.
• Contractor payments: If you hire US-based independent contractors, you need an EIN to issue W-9 and 1099 forms.
• State compliance: Many states require an EIN for sales tax registration, annual reports, and state-level tax filings.

In short, your EIN is the gateway to operating legally in the United States. Without it, your LLC exists on paper but cannot function in practice.

EIN vs. ITIN vs. SSN: What's the Difference?

Foreign business owners often confuse these three tax identification numbers. Here is how they differ:

Key takeaway: Your LLC needs an EIN (business ID). You personally may also need an ITIN (individual ID) if you have personal US tax obligations, but an ITIN is not required to get an EIN for your LLC.

How to Apply for an EIN: 3 Methods

The IRS offers three ways to apply for an EIN. However, not all methods are available to foreign applicants:

Method 1: Online (IRS Website)

The IRS online EIN application is the fastest method — you receive your EIN immediately after completing the form. However, there is a major limitation: the “responsible party” must have a US SSN or ITIN. If you are a foreign national without either, you cannot use the online method.

If you have a US-based partner, registered agent, or authorized third party with an SSN or ITIN, they can apply online on behalf of your LLC using Form SS-4.

Method 2: Fax (Form SS-4)

This is the most popular method for foreign-owned LLCs. You complete IRS Form SS-4 and fax it to the IRS. No SSN or ITIN is required — you simply write “Foreign” in the SSN/ITIN field. Processing takes approximately 4 business days, and the IRS will fax your EIN back to you.

Method 3: Mail (Form SS-4)

You can also mail your completed Form SS-4 to the IRS. This method is the slowest, with processing times of 4 to 6 weeks. It is generally only recommended if fax is not available.

EIN Application Method Comparison

Recommendation: For most foreign-owned LLCs, the fax method is the best option. It is fast, free, and does not require a US tax ID for the responsible party.

Step-by-Step: Applying for an EIN via Form SS-4

Form SS-4 is the official IRS application for an Employer Identification Number. Here is how to complete it for a foreign-owned single-member LLC:

Step 1: Download Form SS-4

Download the latest version of IRS Form SS-4 from the IRS website. Make sure you are using the current revision.

Step 2: Complete the Entity Information (Lines 1–6)

• Line 1: Legal name of your LLC exactly as registered with your state
• Line 2: Trade name or DBA (if applicable)
• Lines 3–5: Mailing address of the LLC (can be your registered agent's address)
• Line 6: County and state where your LLC is registered

Step 3: Responsible Party Information (Lines 7a–7b)

• Line 7a: Your full name as the LLC member/owner
• Line 7b: Your SSN or ITIN. If you have neither, write “Foreign”

Step 4: Entity Type and Reason (Lines 8a–10)

• Line 8a: Check “LLC” and enter the number of members
• Line 8b: If a single-member LLC, leave blank (it is a disregarded entity by default)
• Line 9a: Check the type of entity (typically “Other” and write “Disregarded Entity”)
• Line 10: Reason for applying — check “Started new business”

Step 5: Business Details (Lines 11–18)

• Line 11: Date the business started (or date of LLC formation)
• Line 12: Closing month of accounting year (usually December — enter “12”)
• Line 13: Highest number of employees expected (enter “0” if none)
• Lines 14–17: Additional details about your business activities
• Line 18: Check “Yes” if this is a foreign-owned LLC

Step 6: Sign and Submit

Sign the form (the responsible party must sign), include your phone number and fax number, and submit via fax or mail.

Step-by-Step: Submitting Your EIN Application via Fax

1. Complete Form SS-4 following the steps above. Double-check every field for accuracy.
2. Include your fax number on the form so the IRS can fax your EIN back to you. If you do not have a physical fax machine, use an online fax service like eFax, HelloFax, or Fax.Plus.
3. Fax to the correct IRS number: For applicants with a principal business address outside the US, fax to (855) 215-1627 (within the US) or (304) 707-9471 (international). Check the current IRS instructions for the most up-to-date fax numbers.
4. Wait for your EIN: The IRS typically responds within 4 business days. Your EIN will be faxed back to the number you provided on the form.
5. Save your confirmation: Store the faxed EIN assignment letter in a safe place. This is your official proof of EIN assignment. You will need it for banking, tax filing, and other business operations.

Common EIN Application Mistakes

These are the most frequent errors that delay or derail EIN applications for foreign-owned LLCs:

• Using the online application without an SSN/ITIN: The IRS online system will reject your application if you cannot provide a US tax ID. Use fax or mail instead.
• Mismatching the LLC name:The name on your SS-4 must exactly match your LLC's name as registered with the state. Even minor differences (e.g., “LLC” vs. “L.L.C.”) can cause issues.
• Selecting the wrong entity type:A single-member foreign-owned LLC is a “disregarded entity.” Do not check “Corporation” or “Partnership” unless your LLC has elected different tax treatment.
• Not including a fax return number: If you fax your SS-4 without providing a return fax number, the IRS has no way to send your EIN back.
• Applying for multiple EINs:Each LLC should have only one EIN. If you already applied and are waiting, do not submit a second application — this creates duplicate records and complications.
• Using a third-party service unnecessarily:Many companies charge $50–$300+ for an EIN that is free directly from the IRS. Only use a paid service if you genuinely need assistance with the form.

What to Do After You Get Your EIN

Once you receive your EIN, here are the immediate next steps:

1. Open a US business bank account. Most banks require your EIN, Articles of Organization, and Operating Agreement. Some banks allow remote account opening for foreign LLC owners.
2. Set up your tax filing calendar. Mark the deadline for your annual Form 5472 and Pro Forma 1120 filing (typically April 15 or the extended deadline).
3. Register for state taxes if your LLC operates in a state that requires sales tax collection, franchise tax, or annual reports.
4. Apply for an ITIN if you personally have US tax obligations beyond your LLC (such as rental income or capital gains).
5. File your first Form 5472.Even if your LLC had no income, you must report any “reportable transactions” between the LLC and its foreign owner. This includes capital contributions, loans, and payments for services.

Key Takeaways

• Every foreign-owned US LLC must have an EIN, regardless of income level.
• The fax method (Form SS-4) is the best option for foreign owners without an SSN or ITIN, with a 4-day turnaround.
• The EIN is free — do not pay a third-party service unless you need genuine help with the form.
• Your EIN is required for banking, tax filing (Form 5472 + Pro Forma 1120), and payment processing.
• After receiving your EIN, your top priorities are opening a bank account and setting up your tax filing schedule.

Frequently Asked Questions

Can a foreign national apply for an EIN online?

Not directly. The IRS online EIN application requires the “responsible party” to have a US SSN or ITIN. Foreign nationals without either must apply via fax or mail using Form SS-4. Alternatively, a US-based authorized third party with an SSN/ITIN can apply online on your behalf.

How long does it take to get an EIN for a foreign-owned LLC?

It depends on the method. Online is immediate (if eligible). Fax takes approximately 4 business days. Mail takes 4 to 6 weeks. The fax method is recommended for most foreign applicants.

Do I need an ITIN before applying for an EIN?

No. You can apply for an EIN without having an ITIN or SSN. On Form SS-4, simply write “Foreign” in the SSN/ITIN field. The ITIN is only needed if you have personal US tax obligations.

Can I use my EIN to file Form 5472?

Yes. Your EIN is required on both Form 5472 and the accompanying Pro Forma Form 1120. Without an EIN, you cannot file these forms. Make sure to apply for your EIN well before the April filing deadline.

What happens if I lose my EIN?

If you misplace your EIN, you can call the IRS Business & Specialty Tax Line at (800) 829-4933 (or (267) 941-1099 for international callers). You will need to verify your identity as the responsible party. The IRS does not issue duplicate EIN assignment letters, but they can confirm your number over the phone.

Is there a fee for getting an EIN?

No. The IRS assigns EINs completely free of charge. Be cautious of websites that charge fees for EIN applications — while some offer legitimate assistance services, the EIN itself is always free when you apply directly with the IRS.