EIN Without an SSN: How the Form SS-4 Fax Process Really Works (2026)

If you're a non-US founder who just formed a US LLC, the next wall you hit is the EIN — the federal tax ID your bank, Stripe, and the IRS all require. And the first thing you discover is that the IRS's convenient online application won't take you.

As an Enrolled Agent who files these regularly, here is how the no-SSN process actually works in 2026 — including the parts the IRS website says quietly and formation services skip entirely. This is educational information, not personalized advice.

Why you can't apply online

The IRS online EIN tool requires the "responsible party" (the human who controls the entity) to have an SSN or ITIN. No SSN or ITIN → no online application. That leaves three real channels: fax, mail, or — for international applicants — phone.

The form: SS-4, and the line that matters

Form SS-4 is a one-page application, but for foreign founders these details decide whether it sails through or dies in the queue:

• Line 7b (responsible party's SSN/ITIN): write "foreign". That's the IRS's own instruction when the responsible party doesn't have and is ineligible to obtain an SSN or ITIN. Don't leave it blank; never invent a number.

• Responsible party: the real owner, name exactly as in your passport. Inconsistent spellings across your Articles, SS-4, and bank application cause downstream rejections.

• Entity classification (lines 8a–9a): a single-member foreign-owned LLC is by default a "disregarded entity" — the checkbox choices here also determine your future filing obligations, so they're worth getting right the first time.

• A return fax number on the form. If you omit it, the IRS mails your EIN confirmation instead — adding weeks.

Where to send it (verified against IRS.gov, 2026)

Which channel you use depends on whether the entity has a principal place of business in the US:

• No US place of business (typical foreign-run LLC): fax 855-215-1627 from within the US, or 304-707-9471 from outside the US. By mail: Internal Revenue Service, Attn: EIN International Operation, Cincinnati, OH 45999.

• US principal place of business: fax 855-641-6935.

• Phone (international applicants only): +1 267-941-1099, 6:00 a.m.–11:00 p.m. US Eastern, Monday–Friday. Not toll-free — but the IRS can issue the EIN during the call.

Numbers change; verify against IRS.gov before sending if you're reading this later.

The honest timeline

The IRS states faxed EINs are generally processed in about four business days when you include a return fax number. In practice, international SS-4s frequently take several weeks — and mail takes about a month. Two rules follow:

1. Never let anyone promise you an "instant EIN" — for non-SSN applicants, that product does not exist.

2. Build the EIN wait into your launch plan: form the LLC first, apply for the EIN immediately, and prepare your bank/Stripe paperwork while the fax queue works.

If nothing arrives, the follow-up channel is the same international phone line — polite, persistent weekly calls. This is, candidly, most of the value a professional adds: we've already made these calls a hundred times.

Not sure your SS-4 is right? One wrong box restarts the multi-week clock. Answer 5 quick questions and an IRS-licensed Enrolled Agent maps — and can handle — your EIN: free Non-Resident Founder Roadmap, 2 minutes, no documents: Get my roadmap. Or book a 15-minute call.

What you get back — and what to do with it

The IRS issues your EIN on a confirmation letter (CP-575). Guard it — banks and Stripe ask for it, and the IRS does not reissue it (they'll send a substitute verification letter, 147-C, if you lose it). With CP-575 in hand you can open the bank account and activate payments: US bank + Stripe as a non-resident founder.

And mark your calendar: a foreign-owned single-member LLC has an annual IRS information filing (Form 5472) with a $25,000 penalty for skipping it — here's how that works.

FAQ

Do I need an ITIN before I can get an EIN?

No. The EIN is issued to the company, and "foreign" on line 7b covers the missing personal number. (You might separately need an ITIN later for treaty or personal filing reasons — different topic, different form.)

Can a third party apply for me?

Yes — the SS-4 has a Third Party Designee section, and licensed practitioners handle the follow-up with the IRS under proper authorization.

Does the EIN cost anything?

The IRS charges nothing. What you pay a professional for is getting the SS-4 right the first time and chasing the queue until the CP-575 is in your hands.

I applied weeks ago and heard nothing. Start over?

Usually no — call the international line first. A duplicate SS-4 can create two EINs and a mess that takes months to unwind.

Skip the queue-chasing

This is step 3 of the full path: How to get a US LLC and EIN without an SSN — the complete guide.

Want it handled — SS-4 prepared by an Enrolled Agent, faxed, and chased with the IRS until your EIN is issued? Start with the free 2-minute Non-Resident Founder Roadmap. Our EIN-only service is $450 (full credit toward the $1,495 Launch Package if you add formation within 90 days). Book a free 15-minute call or call/text (323) 900-0305 (English/Spanish, WhatsApp works).

All State Tax Resolution, Inc. — IRS-authorized Enrolled Agent. Educational content; consult an attorney for legal questions.