FaxTerra
Reference·Reviewed September 2026

Get a US EIN Without an SSN: Fax From Anywhere

The IRS online EIN tool requires a US SSN or ITIN. If you don't have one, fax your SS-4 from anywhere in the world. The IRS targets 4 business days; about 2 weeks is typical, and international applications often run longer.

Domestic (your business is US-based)
Toll-free24/7
use this if your business, office or agency (or your own legal residence, if you're applying as an individual) is in a state or DC — most non-resident founders of a US LLC or corporation use this line, whatever their own citizenship or location
(855) 641-6935
No US location, from outside the US
24/7
use this only if your business has no legal residence, principal place of business, or principal office or agency anywhere in the US
(304) 707-9471
No US location, from within the US
Toll-free24/7
same test as the line above, but faxing from inside the US
(855) 215-1627
IRS phone (international)
Mon-Fri 6am-11pm ET
Alternative: get EIN verbally during the call
(267) 941-1099

When does the IRS fax your EIN back?

Typical (median)
about 2 weeks
Within 3 weeks
89%

The IRS faxes your EIN back to the number on your SS-4, usually within a couple of weeks and occasionally longer than a month. That fax-back is the EIN assignment notice, not the CP 575 confirmation letter, which the IRS mails separately. Measured from real EIN fax-backs to FaxTerra users (n=230).

See full IRS response-time data

Why the Online Tool Doesn't Work for You

The IRS EIN Assistant requires the entity's principal place of business to be in the US AND the responsible party to have an SSN or ITIN. Most non-US entrepreneurs are missing the SSN or ITIN, even when the entity itself (an LLC or corporation formed in a state) is US-based. Your options: call the IRS at (267) 941-1099 (limited hours, long holds, timezone challenges), fax Form SS-4 (24/7, and the IRS faxes the EIN straight back), or mail it (slower still). Fax is the sweet spot for international applicants: faster than mail, no phone availability needed.

How to Fax Your SS-4

Fill out Form SS-4 completely. In the SSN field (Line 7b), enter "foreign" or N/A if the responsible party doesn't have and is ineligible to obtain an SSN or ITIN, per the IRS instructions. Put your return fax number in the "Applicant's fax number" field in the signature block, and repeat it on a cover sheet, so the IRS can fax your EIN back.

Which number you fax to depends on where your BUSINESS is, not where you are. If you're forming a US LLC or corporation, the case for most Stripe Atlas, Amazon FBA, and Shopify founders, your entity's principal office or agency is in the US, so you fax the domestic line, (855) 641-6935, even though you personally are outside the US. The international lines, (304) 707-9471 from outside the US or (855) 215-1627 from inside it, are for entities with no US location at all: for example, applying as an individual with your own foreign legal residence and no US business.

Start from a clean, legible scan or photo: FaxTerra transmits at high resolution automatically.

If you send from a FaxTerra number, your inbox catches the reply and labels a fax from a known IRS line, and the composer can add a check-in: if nothing has arrived after three weeks, one email tells you it is time to call instead, with the script. That matters more from outside the US, where the phone follow-up is the hard part. We do not fill in your form, choose anything for you, or contact the IRS on your behalf. See faxing the IRS about an EIN.

What You'll Need

Completed Form SS-4 (download from IRS.gov). A fax number where the IRS can send your EIN back (FaxTerra provides a US fax number for $4.99/month). Supporting documents may help: copy of your passport, copy of Articles of Organization/Incorporation filed with the US state. A cover sheet stating your LLC name, formation state, formation date, and return fax number. See plans and pricing for what each plan and credit pack includes.

What Happens After You Fax

The IRS faxes back a cover sheet with your assigned EIN generally within 4 business days per the IRS, though international applications often take longer (about 2 weeks is typical in practice). This is NOT the CP 575: that formal notice arrives separately, by mail, to your registered agent address. If the CP 575 never arrives (common for international mail), call (267) 941-1099 and request a Letter 147C by fax instead.

Common Scenarios

Stripe Atlas founders: You need a US EIN before Stripe activates your account. Amazon FBA international sellers: Required for tax compliance on US marketplace sales. Shopify merchants: Needed for Shopify Payments. Digital nomads forming Wyoming/Delaware LLCs: Your registered agent handles the state filing, but EIN is on you. In all cases, the fax path gets you an EIN in days rather than weeks.

See how to send a fax with FaxTerra

Frequently Asked Questions

Can I get a US EIN without an SSN or ITIN?

Yes. International applicants without an SSN or ITIN can fax Form SS-4 to the IRS. Enter "foreign" or N/A in the SSN field. The IRS will still assign an EIN.

What fax number do I use as a non-US resident?

It depends on where your BUSINESS is, not where you are. Forming a US LLC or corporation (most Stripe Atlas, Amazon FBA, and Shopify founders)? Fax the domestic line: (855) 641-6935. Only entities with no US location at all use the international lines: (304) 707-9471 from outside the US, or (855) 215-1627 from inside it.

How long does it take to get an EIN by fax?

The IRS quotes 4 business days; in practice about 2 weeks is typical, and international applications can take longer. The IRS faxes back a cover sheet with your assigned EIN to the return fax number you provide.

Do I need a US fax number to receive my EIN?

You need a fax number where the IRS can reach you. A US number is simplest (FaxTerra: $4.99/month). The IRS faxes back to whatever number you provide on the cover sheet.

Can I call the IRS instead of faxing?

Yes. Call (267) 941-1099, Monday-Friday 6am-11pm Eastern Time. You'll receive the EIN verbally during the call. However, hold times can be long and the timezone difference makes this difficult for many international applicants.

I got my EIN but never received the CP 575 letter. What now?

Common for international addresses. Call (800) 829-4933 or (267) 941-1099 and request a Letter 147C by fax instead: it carries the same information and banks accept it interchangeably. You'll need a fax number to receive it.

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