Why the online portal blocks you
The confusion most non-resident founders run into is that they assume the rejection means non-residents cannot get an EIN at all. That is wrong. An EIN - Employer Identification Number, the nine-digit federal tax ID for your business - is available to anyone forming a US entity, citizen or not, resident or not. The IRS has issued EINs to foreign-owned entities for decades.
What blocks you is narrower than that. The IRS online EIN assistant (the web tool at irs.gov that issues a number "instantly") runs an identity-validation step before it lets you proceed. That step asks the responsible party - the individual who controls the entity - to enter a US SSN or ITIN. The IRS uses the number to match the responsible party against its existing taxpayer records. If you have no US tax identity, there is nothing to match against, and the tool stops you at the first screen.
The IRS states this plainly in the Instructions for Form SS-4 (Rev. December 2025): applicants whose principal business is outside the United States, or who have no US legal residence, "cannot use the online application." The online tool is reserved for parties with a US tax identity. This is a design limitation of the verification system, not a rule that excludes foreigners from holding an EIN.
There is one more wrinkle worth knowing. Even applicants who do have an ITIN sometimes get blocked online, because the ITIN was issued for a different purpose (filing a personal return, say) and the system flags the mismatch. So the reliable path for almost every non-resident - ITIN or not - is the same: skip the web tool entirely and file Form SS-4 directly.
The three ways a non-resident can actually get an EIN
The online tool is closed to you. Three other channels are open, and they differ sharply in speed.
| Method | Who it's for | IRS-stated speed | Real-world speed | Notes |
|---|---|---|---|---|
| Fax (Form SS-4) | International + domestic | ~4 business days | 8-15 business days | Most common; needs a return fax number |
| Phone (267-941-1099) | International applicants only | Same call | Same call, if you get through | Often the fastest; long hold times |
| Mail (Form SS-4) | International + domestic | 4-6 weeks | 4-8 weeks | Slowest; avoid unless you must |
| Online (web assistant) | US SSN/ITIN holders only | Instant | Instant | Closed to non-residents |
Sources: IRS, Instructions for Form SS-4 (Rev. December 2025); IRS, Employer Identification Number and Get an EIN pages, irs.gov.
The phone option is the one most non-residents have never heard of, and it is genuinely the fastest. The IRS operates a dedicated international EIN line at 267-941-1099 (a non-toll-free US number), open Monday through Friday, 6:00 a.m. to 11:00 p.m. Eastern. If you reach an agent, complete your SS-4 beforehand, read the answers aloud, and the agent can assign the EIN on the call. The catch is hold times: the line is frequently congested, calling from outside the US incurs international rates, and you must be the authorized responsible party (or hold a signed Form 2848 / SS-4 authorization). For founders who want certainty and a paper trail, fax remains the standard.
The fax workaround, step by step
Fax is the route most formation services use, including ours, because it is reliable, leaves a transmission record, and does not depend on phone availability. Here is the full process.
Step 1 - Form the LLC first
You cannot get an EIN before the entity exists. The IRS needs a legal entity name to attach the number to, and Line 1 of Form SS-4 asks for the "legal name of the entity." File your Wyoming Articles of Organization, wait for the Secretary of State to confirm the LLC is active (typically same-day to 24 hours for Wyoming filings), and only then prepare the SS-4. Filing the SS-4 before formation is the single most common sequencing error.
Step 2 - Complete Form SS-4 correctly
Download the current Form SS-4 (Rev. December 2025) from irs.gov. The fields that matter most for a foreign-owned single-member LLC:
- Line 1 - Legal name of the entity, exactly as it appears on your Wyoming Articles.
- Line 4a/4b - Mailing address. Use your registered agent's address; a foreign personal address can trigger manual review.
- Line 7a - Name of the responsible party (you, the controlling owner).
- Line 7b - This is the field that matters most. If you have no SSN or ITIN, write "Foreign" here. The IRS Form SS-4 instructions explicitly allow a foreign responsible party who is ineligible for an SSN or ITIN to write "Foreign" rather than leave it blank. Leaving it blank routes your form to the wrong queue.
- Line 8a - Check "Yes" for LLC, and on Line 8b enter the number of members (1 for a single-member LLC).
- Line 9a - Select the correct classification. A single-member foreign-owned LLC that has not elected corporate status is a disregarded entity; most non-residents check "Other" and write "Foreign-owned U.S. disregarded entity" or select per their tax election. Do not check "Sole proprietor."
- Line 10 - Reason for applying (usually "Started new business" or "Banking purpose").
- Line 18 - Whether the entity has ever applied for an EIN before (almost always "No").
Sign and date the form. An unsigned SS-4 is rejected.
Step 3 - Fax to the correct international number
This is where the original guidance circulating online is often wrong, so read carefully. The IRS uses two different fax numbers, and which one applies depends on where you are physically located:
- Located outside the United States: fax to +1 (304) 707-9471.
- No principal office in any US state or DC but located in a US territory / domestically: fax to (855) 215-1627.
For the typical non-resident founder sitting in India, Bangladesh, the UK, Pakistan, or the UAE, the correct destination is 304-707-9471. The 855 number is for US-based applicants without a state office. Faxing to the wrong number does not lose your application, but it can add days while the IRS reroutes it. The IRS Fax-TIN program runs 24/7.
You can send the fax from any service - eFax, RingCentral, an online fax web app, or a fax bureau in your home country. Crucially, include a return fax number on the cover so the IRS can fax your EIN letter back. If you only provide a mailing address, the IRS mails the letter internationally, which adds weeks.
Step 4 - Wait for the CP575 or 147C
The IRS faxes back a CP575 - the official EIN assignment letter - once the number is issued. In some cases you receive a 147C confirmation letter instead, which is a reprint that serves the same proof-of-EIN function. Banks like Mercury, Relay, and Wise accept either as evidence of your EIN.
How long it really takes
The IRS publicly states that faxed SS-4 applications are processed and returned "within four business days." That is the official target. In practice, for international applications, the realistic window is wider - typically 8 to 15 business days, and longer during post-tax-season backlogs (April through June) or around IRS holiday closures. The Taxpayer Advocate Service, the IRS's own internal watchdog, flagged in a September 2025 blog that EIN-issuance delays for those who cannot use the online tool remain a recurring pain point, "forcing them to mail or fax Form SS-4, a process that can take four weeks or more" when things go wrong.
A realistic fax timeline:
- Day 0 - Fax transmits (seconds).
- Day 1-3 - IRS logs receipt and queues the form for the international team.
- Day 4-9 - A reviewer processes the application.
- Day 8-15 - IRS faxes back the CP575 (or 147C).
Plan for two to three weeks, not four days, and you will rarely be disappointed.
The "one EIN per responsible party per day" rule
A constraint that catches founders forming multiple entities: the IRS limits EIN issuance to one per responsible party, per day, across all channels - online, phone, fax, and mail. This rule took effect May 21, 2012, and the IRS applies it strictly. If you are the responsible party on two LLCs and want EINs for both, you cannot get them on the same calendar day. The IRS will issue the first and hold the second. Space the applications across days, or name a different (legitimate) responsible party where appropriate.
Why the EIN matters so much for non-residents
For a US founder, the EIN is one box on a checklist. For a non-resident, it is the keystone - almost nothing downstream works without it.
- Banking. Mercury, Relay, Brex, and Wise Business all require an EIN to open a US business account. No EIN, no account. This is the single biggest reason non-residents need theirs fast.
- Stripe and PayPal. US payment processing for your LLC is tied to the EIN.
- Federal tax compliance. Your annual IRS filings reference the EIN.
- Amazon, Shopify, and marketplace accounts. Many require an EIN to register a US business seller account.
Because the bank account is gated behind the EIN, and revenue is gated behind the bank account, an EIN delay is a revenue delay. That is why getting the SS-4 right the first time - correct fax number, "Foreign" on Line 7b, return fax number on the cover - is worth real attention.
Don't forget Form 5472 - the federal filing with a $25,000 penalty
Getting the EIN is the start of your IRS relationship, not the end. Foreign-owned single-member LLCs are disregarded entities for income tax, but they carry a heavy information-reporting duty that surprises many founders.
Every year, a foreign-owned single-member LLC must file Form 5472 ("Information Return of a 25% Foreign-Owned U.S. Corporation or a Foreign Corporation Engaged in a U.S. Trade or Business") attached to a pro forma Form 1120, with "Foreign-owned U.S. DE" written across the top. This is required even if the LLC had zero income and zero US tax. The form reports "reportable transactions" between you and your LLC - capital you put in, money you took out, loans, and so on.
The penalty for missing it is severe. Under IRC §6038A(d)(1), the IRS assesses a $25,000 penalty per year for each Form 5472 not filed or filed substantially incomplete, and an additional $25,000 if the failure continues more than 90 days after IRS notice. For 2025 tax-year transactions, Form 5472 is due April 15, 2026 for calendar-year filers; filing Form 7004 by that date extends the deadline to October 15, 2026. The IRS accepts the package by mail to its Ogden, UT service center or by fax to 855-887-7737.
In short: the EIN gets you started; Form 5472 keeps you compliant. Budget for both. (We offer Form 5472 + pro forma 1120 preparation as a low-cost annual add-on, or you can use any CPA familiar with foreign-owned LLCs.)
What actually goes wrong, and how to fix it
Most EIN delays for non-residents are self-inflicted and avoidable. The recurring failure modes:
- Blank Line 7b. Leaving the responsible-party tax-ID field empty (instead of writing "Foreign") routes the form into a queue that expects a number, where it stalls. The fix is one word: "Foreign."
- Wrong fax number. Faxing the international form to a domestic number adds days while the IRS reroutes it. From outside the US, use +1 (304) 707-9471.
- No return fax number on the cover. Without it, the IRS mails the CP575 internationally, turning a one-week step into a four-to-six-week one. This single omission is the most expensive mistake in the process.
- Filing before the LLC is approved. The IRS attaches the EIN to a named legal entity (Line 1). Apply before the Wyoming Secretary of State has confirmed the LLC and you risk a mismatch or rejection.
- Unsigned SS-4. An unsigned form is rejected outright.
- Inconsistent entity name. The name on Line 1 must match the Wyoming Articles exactly - punctuation, "LLC" vs "L.L.C.", and spacing included - or the IRS may kick it back.
Requesting a replacement: the 147C
If you lose the CP575 (it is issued only once), you do not reapply for a new EIN - that would create a duplicate. Instead you request a Letter 147C, an official EIN-confirmation reprint, by calling the IRS Business & Specialty line and verifying you are the responsible party. The 147C serves the identical proof-of-EIN function and is accepted by Mercury, Relay, Wise, Stripe, and Amazon. Because requesting it means another international call and another wait, the practical advice is simple: save the CP575 PDF in multiple places the day you receive it.
A realistic worked timeline
Suppose a founder in Dubai forms a Wyoming LLC on a Monday and wants to be banking as fast as possible:
- Mon (Day 0): Wyoming Articles filed; Secretary of State confirms the LLC active within ~24 hours.
- Tue (Day 1): SS-4 prepared - Line 1 exact entity name, Line 7b "Foreign," return fax number on the cover - and faxed to +1 (304) 707-9471.
- Days 4–9: IRS international team works the application.
- Days 8–15: CP575 faxed back. Realistically, plan for two to three weeks rather than the IRS's stated four business days, longer if filing during the April–June post-tax-season backlog.
- After the EIN lands: open Mercury, Relay, or Wise (each needs the EIN letter), typically another 8–10 business days.
End to end, a clean non-resident setup from formation to a working bank account is usually three to five weeks, with the EIN step the main variable. The phone route (267-941-1099) can compress the EIN to a single call if you get through, but the hold times and time-zone window make fax the more predictable plan for most founders.
How WyomingLLC handles your EIN
We file Form SS-4 by fax for every customer as part of the $397 package - Wyoming state filing fee included, no SSN or ITIN required from you. You do not touch the form. The flow:
- We file your Wyoming Articles and wait for Secretary of State confirmation (usually within 24 hours).
- We prepare your SS-4, write "Foreign" on Line 7b, and fax it to the correct IRS international number using eFax for a reliable transmission record.
- We track the IRS response and re-send if a fax line is congested.
- When the CP575 arrives, we forward it to you as a PDF and confirm receipt.
- We then make warm introductions to Mercury, Relay, and Wise so your EIN turns into a working US bank account.
Filing SS-4 forms in practice has taught us where the IRS slows down (wrong fax number, blank Line 7b, missing return fax) and how to avoid it.
Form your Wyoming LLC with EIN filing included - $397 all-in, ITIN available as a separate $297 add-on if you need one.
Sources
- IRS, Instructions for Form SS-4 (Rev. December 2025), irs.gov/instructions/iss4
- IRS, Form SS-4 (Rev. December 2025), irs.gov
- IRS, Employer Identification Number and Get an EIN pages, irs.gov
- IRS Taxpayer Advocate Service, "When Taxpayers Struggle to Obtain an EIN, Everyone Loses" (September 2025)
- IRS, About Form 5472 and Instructions for Form 5472, irs.gov; IRC §6038A(d)(1)
