
What is an EIN and why does a foreign-owned US entity need one?
An Employer Identification Number (EIN) is a nine-digit federal tax identifier issued by the IRS to a business entity. A foreign-owned US company needs one to file federal tax returns, open a US bank account, register for state payroll and sales tax, onboard with payment processors and appear as a payee on Forms W-9 and 1099. It is issued to the entity, not to its owners, so no US residency, address or Social Security Number is required to obtain it.
By the Seal Global Holdings Advisory Team, US Market Entry Practice · Published September 3, 2026. Our team has filed Form SS-4 for foreign-owned entities across two decades of US market entry work, including for applicants with no SSN, no ITIN and no US address.
The EIN causes more anxiety among foreign founders than any other step in US setup, and almost all of it is unnecessary. The rules are not restrictive; they are simply documented for an audience the IRS assumes is domestic. What follows corrects the five assumptions that most often stall an application, and sets out what the process actually involves.
What Is an EIN, and Why Does a Foreign-Owned Entity Need One?
An Employer Identification Number is a nine-digit federal tax identifier issued by the IRS to a business entity. A foreign-owned US company needs one to file federal returns, open a bank account, register for payroll and sales tax, and be paid by US customers. It belongs to the entity rather than to its owners, which is why no US residency, address or Social Security Number is required to obtain one.
The Five Myths, and What Is Actually True
| Myth | Reality | What to do instead |
|---|---|---|
| You need a US address to get an EIN | Form SS-4 accepts a foreign mailing address for the responsible party. The entity itself has a US registered agent address from formation. | Enter the entity's registered agent or principal office address in the business address field and your own overseas address as the responsible party. |
| You need an SSN or ITIN to apply | A responsible party without an SSN or ITIN writes "Foreign" in line 7b. This is the IRS's own instruction, not a workaround. | File Form SS-4 by fax or mail rather than online, since the online tool requires a US taxpayer identification number. |
| An EIN and an ITIN are the same thing | An EIN identifies a business entity. An ITIN identifies an individual who must file US tax but cannot get an SSN. Different forms, different purposes. | Apply for the EIN for the company now. Only pursue an ITIN if you personally have a US filing obligation, such as a K-1 from an LLC. |
| You cannot open a US bank account until you have an EIN | Partly true in practice: nearly every bank asks for the EIN, so the sequence is real even though no statute demands it. | Start bank due diligence in parallel with the SS-4 filing so the account opens the week the EIN arrives rather than a month later. |
| Getting an EIN as a foreign owner takes months | Fax filings are commonly returned in about four business days to four weeks. Multi-month cases are usually rejected or resubmitted forms. | File by fax with a correct, internally consistent SS-4 and a return fax number, then follow up rather than refiling. |
Myth 1: The US Address Requirement
Form SS-4 asks for two addresses and founders conflate them. Lines 4a and 4b take the entity's mailing address, which in practice is the registered agent address supplied at formation. Lines 5a and 5b take the street address if it differs. The responsible party in line 7a is a person, and their address may sit in Berlin, Bangalore or Bogotá without affecting the application. Nothing in the form requires the applicant to reside in the United States.
Where this genuinely matters is downstream. A registered agent address is fine for the IRS and frequently insufficient for a bank, which wants to understand where the business actually operates. Anticipating that gap is part of how our US market entry and operations enablement team sequences formation, EIN and banking rather than treating them as three unrelated errands.
Myth 2 and Myth 3: SSNs, ITINs and the "Foreign" Entry
The single most useful fact in this article is that line 7b of Form SS-4 accepts the word "Foreign" where a responsible party has no SSN or ITIN. The IRS instructions say so directly. What that entry does is remove the online application route, because the IRS online assistant validates against a US taxpayer identification number. You file by fax instead, or by mail if you have time to spare.
The ITIN confusion is separate and costs people weeks. An ITIN is an individual identifier for someone with a personal US filing obligation and no eligibility for an SSN. It is not a prerequisite for a company EIN, and applying for one first is a common and avoidable detour. If you own a single-member LLC that will issue you a Schedule K-1, or you will personally receive US-source income, the ITIN question becomes relevant later, after the entity is operating.
Myth 4: The Banking Sequence
No law says a bank must see an EIN before opening a business account. Every bank's onboarding procedure says it, which amounts to the same thing. The practical error is not the belief but the passivity: founders wait for the EIN, then start bank conversations, then discover the bank wants apostilled formation documents, a beneficial ownership chart to natural persons, and evidence of US business activity. That is another three to six weeks that could have run in parallel.
Assemble the banking pack while the SS-4 is with the IRS. Certified formation documents, the operating agreement or bylaws, ownership chart, passports for beneficial owners above the threshold, and a plain description of what the business does and where its revenue comes from. Our US entity incorporation services produce that pack as part of formation so nothing is being drafted while a compliance officer waits.
Myth 5: Timelines
Foreign applicants filing by fax typically see the EIN returned within roughly four business days to four weeks, depending on IRS workload. Mail is slower and less predictable. The cases that genuinely take months are almost always rejections: a mismatch between the legal name on the SS-4 and the state charter, a missing entity type, an unsigned form, or a responsible party who is not an individual with control over the entity. The IRS does not always explain the rejection clearly, and the applicant refiles the same error.
Two habits prevent most of this. First, check the legal name character by character against the filed charter, including punctuation and the entity suffix. Second, include a return fax number and keep the transmission confirmation, because it is your only evidence of the filing date if you need to chase. Companies that treat the EIN as one dependency inside a wider plan, rather than an isolated form, generally reach an operating bank account weeks earlier, which is the outcome our operations enablement programme is built around. The mechanics of formation, registered agent appointment and EIN are covered end to end in our US incorporation and EIN requirements guide.
What Is Actually Required
- A legally formed US entity, or a formation filing in progress with a confirmed legal name.
- A responsible party: a natural person with control over the entity, named in line 7a.
- Their SSN, ITIN, or the word "Foreign" in line 7b where neither exists.
- A mailing address for the entity, which may be the registered agent address.
- Entity type, formation state, formation date, reason for applying and expected employees.
- A signature from the responsible party or an authorised third-party designee.
That is the whole list. No US residency, no US address for the applicant, no SSN, no ITIN, and no intermediary is legally required, although a designee can file on your behalf and receive the number directly.
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18 answers about us ein myths.
1. EIN Basics
2. Applying Without an SSN
3. Timelines & Process
4. Banking & Next Steps
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