EIN without an SSN: how to get one for your US LLC

Yes, your LLC can get an EIN without a US Social Security Number. The confusion comes from one detail: the IRS online tool does require an SSN or an ITIN. So you use the channels built for international applicants instead: fax, phone or mail, with a properly prepared Form SS-4.

EIN, SSN, ITIN: three numbers, three different jobs

The EIN (Employer Identification Number) is your company’s federal tax number. Despite the name, it has nothing to do with employing anyone: every LLC needs it to open a business bank account, activate a payment processor like Stripe and file its annual returns.

The SSN (Social Security Number) identifies individuals authorized to work in the United States. As a non-resident with no US immigration status, you are not eligible for one, and that is not a problem.

The ITIN (Individual Taxpayer Identification Number) is the personal tax number for people who cannot get an SSN. It serves your individual obligations and your access to US credit, not your company’s.

The order matters: EIN first, because it unlocks banking and payments. The ITIN comes later, if your personal situation requires it or if you want US credit cards.

Why the online tool is closed to you

The IRS online EIN assistant verifies the identity of the responsible party (the individual who controls the entity) against their SSN or ITIN. Without one of the two, the application stops at the first screen. Many entrepreneurs hit this wall right after forming their LLC and wrongly conclude they need a US partner or an ITIN first.

No intermediary has a backdoor into the online tool: a serious provider prepares a flawless SS-4 and files it through the international channels, nothing more. Be wary of anyone promising a non-resident without an ITIN an EIN “online in 24 hours”.

Form SS-4: the lines that actually matter

The SS-4 fits on one page, but the IRS reads it to the letter. Four areas cause most rejections:

1. Lines 1 and 2, the legal name. It must reproduce the name registered with the state exactly, suffix included (“LLC”). One extra comma creates a mismatch that will follow you all the way to the bank.
2. Line 7b, the responsible party. That is you, a natural person, never another company for a new entity. Without an SSN or ITIN, the correct entry is “Foreign”. Nothing else.
3. Lines 8a and 9a, the classification. A non-resident’s single-member LLC is by default a disregarded entity. Ticking the wrong box can trigger filing obligations you do not actually have.
4. The Third Party Designee section. It authorizes a third party (your provider) to discuss the application with the IRS and receive the EIN on your behalf. That is what makes follow-up possible without waking you up on IRS hours.

The business start date and the reason for applying (“Started new business”, “Banking purpose”) must stay consistent with reality: those fields shape what the IRS expects from your future filings.

Fax, phone or mail: the three real channels

Once the SS-4 is ready, international applicants have three routes. The details below are the ones the IRS publishes for entities with no legal seat in any US state; check them on irs.gov when you file, they change without notice.

Fax remains the best trade-off: traceable, fast, and the IRS faxes the EIN back. Phone is unbeatable on speed, provided you are reachable on US hours, can sit through the queue and can answer every SS-4 question in English without hesitating. Mail only makes sense when the other two have failed.

A realistic timeline, from formation to bank account

Here is a clean file, end to end, filed by fax:

1. Day 0: the state approves the LLC. You now have the exact legal name and formation date, the two data points the SS-4 requires. At Altixia, the formation itself takes 24 business hours.
2. Day 0 or 1: SS-4 prepared and sent. Name checked character by character, line 7b marked “Foreign”, Third Party Designee filled in, return fax number included.
3. Following days: IRS processing. The agency quotes about four business days for a fax response when the form is complete. In busy periods it stretches; build in margin before your banking deadlines.
4. EIN received, then the bank file. With the number in hand, the account opening starts immediately. The bank’s KYC review then takes anywhere from a few days to a few weeks depending on the institution and the quality of the file.

All told, a well-prepared founder goes from nothing to “LLC + EIN + bank account in progress” in one to two weeks. The same journey with a rejected SS-4 is measured in months.

The mistakes that cost weeks

On the files we take over after a failed first attempt, the same causes keep showing up:

• Applying before the LLC is approved. The SS-4 requires the exact legal name and formation date. Too early means a rejection, or a number attached to a wrong name.
• Leaving out the return fax number. Without it, the answer goes out by international post and the four-day timeline becomes a month.
• An incomplete or inconsistent form. Empty line 7b, missing signature, contradictory classification: each defect sends the file into manual processing.
• Taking the phone route unprepared. The IRS agent walks through the SS-4 question by question. One hesitation on the tax classification and the call ends without a number.
• Letting a name mismatch linger. If the EIN was issued with a typo, fixing it takes a signed letter to the IRS. Until then, banks block the file at KYC.

None of it is fatal, but every mistake is paid in weeks of delay, exactly when your bank account and your first payments are waiting on that number.

What the EIN changes, and what it does not

The EIN unlocks your company’s infrastructure: business bank account, payment processors, invoicing with a US tax identifier, hiring the day you need it. It is permanent: once issued, it never expires, never renews and is never reassigned to another entity, even if you stop the business.

You should also know what it does not do:

• it creates no tax residency: holding an EIN does not by itself make you taxable in the US; your tax position depends on your activity and presence;
• it does not replace the ITIN: your personal obligations and US credit access go through that separate number, issued by a separate procedure;
• it waives no filing: the annual Form 5472 remains due, EIN or not, as long as your LLC is owned by a non-resident;
• it registers your company in no additional state: operating physically elsewhere requires the corresponding local registrations.

In short, the EIN is an access key, not a status. It opens doors; it does not change your tax position.

What it costs, and why it is sometimes billed

Let’s be plain: the EIN is free. The IRS charges nothing, online, by fax or by phone. When a provider bills you for an EIN, they are not selling the number: they are selling the correct preparation of the SS-4, filing through the right channel, follow-up until issuance and fixing problems along the way. That is an honest distinction to understand before paying anyone, us included.

Once the number arrives

The IRS confirms the assignment with letter CP 575, sent only once. Keep it safe: banks and some payment processors ask for a scan of the original. If it is lost, the IRS can issue a verification letter (147C), but that is one more call and days of waiting.

With the EIN in hand, the next steps line up: opening the business bank account remotely, setting up payments, and marking the tax calendar. Your non-resident LLC must file Form 5472 with a pro forma 1120 every year, even with zero revenue; missing it exposes you to a $25,000 penalty. The full journey is covered in our guide to opening a US LLC as a non-resident, and the personal side in our article on getting an ITIN without traveling.

A well-obtained EIN means a bank file that clears on the first pass. A botched one is the first domino in a chain of blocks.