How to Apply for an EIN for a U.S. LLC as a Non-US Resident in 2025 – Complete Guide to Form SS-4, CP575, and IRS Rules

Description: This in-depth 2025 guide explains how non-US residents can apply for an EIN (Employer Identification Number) to start a U.S.-based LLC. It includes step-by-step Form SS-4 instructions, a breakdown of common mistakes, what CP 575 is, and how to avoid IRS rejection. We also compare doing it yourself vs. using professional EIN services like SpeedEIN. Note: You must provide your own U.S. mailing address—SpeedEIN does not offer address services or forward CP575 documents.

🏢 Why Do Non-US Residents Need an EIN for a U.S. LLC?

If you’re a non-U.S. resident planning to form a Limited Liability Company (LLC) in the United States, an Employer Identification Number (EIN) is mandatory. Even if your business has no employees, you need an EIN to:

  • Open a U.S. bank account
  • Register with payment processors like Stripe or PayPal
  • File U.S. tax returns (Form 5472, 1120, etc.)
  • Comply with IRS regulations for foreign-owned businesses
  • Receive payments on marketplaces like Amazon, Etsy, and eBay

📌 According to IRS Publications 1635, 583, and 519, all businesses—including single-member LLCs owned by foreigners—must obtain an EIN to remain tax-compliant.


🧾 Understanding and Correctly Filling Out IRS Form SS-4 (For LLCs)

Form SS-4 is the official IRS form used to apply for an EIN. But if you’re a non-US resident with no SSN or ITIN, there are critical mistakes you must avoid, especially when forming an LLC.

Field No.What to Enter (LLC Example)Common Mistakes by Non-ResidentsResult if Mistake Made
Line 1Your full legal LLC namePutting personal name or incorrect structureEIN mismatch with legal entity
Line 2Leave blank unless DBA usedCopying Line 1 here againDuplicate/confusing record
Line 4a/bYour U.S. mailing address (you must provide this)Using a virtual mailbox or PO BoxIRS refuses to deliver CP575 letter
Line 7a/bLeave blank + add “Foreign Owner – No SSN” noteInventing SSN/ITIN, entering friend’s IDIRS rejection or no response
Line 9aCheck “LLC” and specify number of members (e.g., 1)Choosing “Sole Proprietor” or “Other”IRS confusion on entity classification
Line 10Enter: “Started a new LLC in [State]”Leaving blank or vague answers like “Tax”Delay or rejection by IRS
Line 18Most LLCs: Check “No” for hiring employeesMistakenly checking “Yes”IRS assigns unnecessary employment tax IDs

🛑 Note: There is no online EIN application for foreign applicants. You must fax or mail the completed SS-4 to the IRS.


📬 What Is the CP 575 Notice? Why It Matters

After the EIN is issued, the IRS mails a confirmation letter called CP 575 to the address listed on your SS-4 form. This is a critical official document.

  • 🚫 It is NOT available in PDF or email format
  • 📬 It is mailed only once, by post, to your U.S. address
  • 📂 Many banks, partners, or payment providers request a copy
ScenarioOutcome
Address is real and accessibleYou receive CP 575 by mail (ideal case)
Address is invalid/PO boxCP 575 is returned to IRS – you may never see it
Friend receives but discards itEIN becomes unusable for formal verification

💡 Important: SpeedEIN does NOT offer U.S. mailing addresses or forward CP 575 letters. You must provide a valid U.S. address yourself.


⚠️ Why Many EIN Applications from Foreigners Are Rejected

Based on internal IRS feedback and user experience, over 40% of self-submitted EIN applications by foreigners fail due to:

Issue TypeExplanation
Wrong form versionUsing outdated or auto-translated SS-4 forms
Address problemsInvalid, missing, or undeliverable U.S. mailing address
No SSN/ITIN explanationIRS requires clear disclosure: “Foreign owner, no SSN”
No follow-up mechanismIRS does NOT notify you if there’s an error—silent failure
Communication barrierIRS phone support has long wait times and technical jargon

🆚 Self-Apply vs. Use SpeedEIN – Honest Comparison

CriteriaSelf-Application by Non-ResidentUsing SpeedEIN Service
SS-4 Accuracy❌ Error-prone for first-timers✅ Manually verified by experts
Turnaround Time❌ May take 4–8 weeks (or fail)✅ 7–10 business days
IRS Rejection Risk❌ Very high for non-US residents✅ Over 95% success rate
Address Support🚫 Must find your own🚫 You must still provide address
CP 575 Delivery Assurance❌ Often gets lost or misdirected✅ Address checked for compatibility
Post-submission follow-up❌ You must call/fax IRS alone✅ We monitor status and re-submit if needed

🚫 Don’t Fall for Fiverr or “WeChat” Scams

Many EIN services found on freelancer platforms or informal networks:

  • Use invalid templates or generic SS-4 forms
  • Are not U.S.-based, thus not allowed to represent you legally
  • May fabricate addresses, making EINs invalid for tax reporting
  • Will disappear when IRS follows up or rejects the application

🔒 SpeedEIN is a professional EIN processing platform dedicated to foreign business owners.


✅ Why Choose SpeedEIN?

  • 📝 Manual SS-4 review for IRS-compliant completion
  • 📤 EIN in 7–10 business days (fax processing)
  • 🛡 Secure data handling with end-to-end encryption
  • 🌎 Multilingual guidance (Chinese, English, Spanish, etc.)
  • 💼 Suitable for Amazon sellers, freelancers, global startups
  • 🚫 We do NOT provide addresses – clear policy, full transparency

🏁 Final Thoughts: EIN is Your LLC’s Legal Identity

Without an EIN, your LLC does not legally exist in the eyes of the U.S. government.
And without a CP 575 notice, you can’t open bank accounts, file taxes, or prove business legitimacy.

If you are a non-U.S. resident, don’t waste time figuring out complex IRS forms. Let SpeedEIN handle the process and reduce risk.

📍 Visit now: https://www.speedein.com