EIN Processing Delays for Non-Residents (2026): Why It's Taking So Long, and How to Fix It
The IRS says your EIN fax comes back in about four business days. In 2026, non-resident founders are reporting six to eight weeks, sometimes longer, a consensus across multiple tax-service and practitioner sources. That gap isn't a formatting problem or bad luck. It traces to a documented drop in IRS staffing, a lower agency-wide phone-service goal for FY2026, and a correspondence backlog the Government Accountability Office expects to persist (GAO-26-108116). If your LLC is already formed and you're staring at a fax that's gone quiet for a month, this guide explains why, which mistakes make it worse, the IRS's current 2026 contact numbers, and what to do while you wait.
Key Takeaways
- IRS says fax returns an EIN in ~4 business days and mail in ~4 weeks. 2026 practitioners report fax at 6-8+ weeks and mail at 6-12+ weeks instead.
- IRS staffing fell roughly 26-27%, from about 102,000 to under 76,000 employees, by June 2025 (Journal of Accountancy).
- A missing return fax number silently shifts your application onto the slower mail track.
- Check status at 800-829-4933 instead of resending a duplicate SS-4.
How Long Is an EIN Application Actually Supposed to Take?
The IRS's own Instructions for Form SS-4 (Rev. Dec 2025) set fax returns at "generally within 4 business days" and mail at "approximately 4 weeks," advising applicants to apply 4-5 weeks ahead of when they actually need the EIN. Phone is reserved for international applicants with no US address, and runs same-day.
| Channel | Official IRS timeline | 2026 real-world reported |
|---|---|---|
| Fax | “Generally within 4 business days” | 6-8 weeks or more (practitioner-reported) |
| “Approximately 4 weeks” (apply 4-5 weeks ahead) | 6-12 weeks or more (practitioner-reported) | |
| Phone (international, no US address) | Same day, Mon-Fri 6am-11pm Eastern | Same day, least affected by the backlog |
Those are the numbers published on IRS.gov. What founders are actually experiencing in 2026 looks different. Across multiple tax-service and practitioner sources, the consensus is that fax applications now run 6-8 weeks or more, and mail applications run 6-12 weeks or more. That's not an IRS-published figure. It's a pattern practitioners report consistently, and it's the realistic number to plan around, not the one printed on the form.
Why Are 2026 EIN Delays So Much Worse Than the Official Timeline?
The gap traces to a documented staffing collapse. IRS headcount fell from roughly 102,000 employees at the start of the 2025 filing season to under 76,000 by June 2025, a 26-27% reduction (Journal of Accountancy, June 2025). Fewer people are processing the same volume of paper-heavy international applications, and non-residents feel that squeeze first.
IRS workforce, 2025
Headcount fell from roughly 102,000 employees at the start of the 2025 filing season to under 76,000 by June 2025, a 26-27% reduction (Journal of Accountancy, June 2025).
Phone service level, FY2026
The IRS lowered its own FY2026 phone-service goal to 70% of calls answered, down from 85% in 2025. Actual FY2025 service came in around 61% (Journal of Accountancy, Jan 2026).
Taxpayer Advocate Service, 2025
The Taxpayer Advocate Service, the IRS's own internal watchdog for taxpayer issues, lost 25% of its own staff over the same period (Journal of Accountancy, 2025).
None of this is a secret. The National Taxpayer Advocate's own blog (Sept 2025, updated Feb 20, 2026) puts it plainly: getting an EIN is "marred by delays, technical glitches, and inconsistent procedures," and non-US applicants "cannot use the online system at all" (National Taxpayer Advocate blog). Meanwhile the volume hasn't shrunk. The IRS issued more than 8.2 million EINs in FY2024 alone (TIGTA Report 2025400036, Aug 2025). Fewer staff, the same demand, and a channel non-residents are pushed toward by default. That combination, not any single glitch, is what's actually driving 2026 wait times, and it's a root cause none of the major formation services currently explain to their own customers.
Are You Making the "Missing Fax Number" Mistake?
Possibly, if your fax has gone unanswered for over a month. This is the single most common unforced error non-residents make. The IRS's instructions state plainly: "Be sure to provide your fax number so the IRS can fax the EIN back to you." Omit it, and the application defaults to the mail queue instead, a switch multiple practitioners describe as a four-to-five-week penalty.
What the mistake actually does
A blank or unreadable fax number doesn't just slow your fax down. It quietly routes the entire application onto the mail track, the slowest channel available, without any notice that the switch happened.
How to check it
Confirm your fax confirmation page shows a clear, working return number before you assume you're just waiting out a normal backlog. If it's missing or smudged, that's very likely why nothing has come back yet.
What Other SS-4 Mistakes Delay or Reject Non-Resident Applications?
Beyond the fax number, the official Instructions for Form SS-4 (Rev. Dec 2025) flag several non-resident-specific traps. Getting Line 7b wrong, naming the entity instead of a person as responsible party, or applying twice in one day are common causes of delay or outright rejection, not just a slower queue.
Line 7b left blank instead of “Foreign” or “N/A”
The IRS's Instructions for Form SS-4 (Rev. Dec 2025) accept either word for a responsible party with no SSN, ITIN, or EIN. A blank line, not the choice between them, is what causes a delay or rejection.
Naming the entity, not a person, as responsible party
The responsible party on Line 7a must be an individual, a natural person who controls the LLC. Listing the entity itself is a hard rejection trigger, not just a slower queue.
Generic “disregarded entity” wording for a 5472 filer
A foreign-owned single-member LLC applying specifically to file Form 5472 should check “Other” on Line 9a and write “Foreign-owned U.S. disregarded entity – Form 5472,” not a generic disregarded-entity description.
Two same-day applications, one responsible party
The IRS allows one EIN per responsible party per day, across online, phone, fax, and mail combined. Forming two entities the same day with yourself as responsible party on both will not work.
A third-party designee whose address matches your own
If a third-party designee's address or phone number matches the applicant's, the application must be mailed or faxed. It cannot use the phone channel, per IRS instructions.
What Are the Correct 2026 IRS Phone, Fax, and Mail Numbers?
The correct 2026 contact details, verified directly against IRS.gov, are 267-941-1099 for international phone applicants (a phone line, not a fax number), 855-215-1627 or 304-707-9471 for fax, and Cincinnati, OH 45999 for mail. Numbers can change without notice, per the IRS's own caution, so confirm before you send anything.
| Channel | Contact | Note |
|---|---|---|
| Phone (international applicants only) | 267-941-1099 | Not toll-free. Mon-Fri 6am-11pm Eastern. This is a phone number, not a fax line. |
| Fax, within the US | 855-215-1627 | Fax-TIN service, available 24/7. |
| Fax, outside the US | 304-707-9471 | Fax-TIN service, available 24/7. |
| IRS, Attn: EIN International Operation, Cincinnati, OH 45999 | The slowest channel; budget accordingly. | |
| Status check | 800-829-4933 | Call here before resending a duplicate SS-4. |
267-941-1099 is a phone number, not a fax line
This mix-up circulates in outdated guides. 267-941-1099 is the international applicant phone line, staffed Mon-Fri 6am-11pm Eastern. If you want a fax-back EIN, send it to 855-215-1627 (within the US) or 304-707-9471 (outside the US) instead.
What Should You Do While Your EIN Is Delayed?
Waiting on an EIN doesn't have to freeze everything else. Move your LLC formation paperwork, registered-agent setup, and operating agreement forward in parallel, since none of that depends on the EIN arriving first, and ask your bank whether it can start document collection before the CP 575 letter physically arrives.
Keep forming the LLC in parallel, not in sequence
Registered-agent setup, your operating agreement, and other formation paperwork don't depend on the EIN arriving first. Run them alongside the wait instead of after it.
Ask your bank about starting document collection early
Some providers can begin KYC document collection before your CP 575 confirmation letter physically arrives. This varies by provider and isn't guaranteed, so ask rather than assume.
Call for status instead of resending a duplicate SS-4
Dial 800-829-4933 to check where your application stands. A duplicate submission for the same entity can create its own processing conflicts and add delay, not remove it.
Keep proof of submission
Save your fax confirmation page or certified-mail receipt. It's the paper trail you'll want if you ever need to prove when and how you applied.
Follow up on a realistic schedule
Follow up after about 3 weeks for a fax application or about 8 weeks for a mailed one, not the outdated two-week assumption that no longer matches 2026 processing reality.
In our experience helping non-resident founders through this exact wait, the founders who stay calmest are the ones who treat the EIN delay as a known, budgeted-for step rather than a sign something went wrong. It usually hasn't. It's a slower system, not a broken application, and the checklist above is what keeps the rest of your setup moving in the meantime.
If you applied by mail
Give it the full 6-12 weeks before assuming something is wrong, and keep your certified-mail receipt as proof of when you sent it.
If you need it faster
Fax remains the faster of the two non-phone channels even with 2026 delays. Double-check your return fax number before resending anything.
EIN Processing Delays for Non-Residents — FAQ
How long does it really take to get an EIN as a non-resident in 2026?
Officially, the IRS's Instructions for Form SS-4 say fax returns an EIN "generally within 4 business days" and mail takes "approximately 4 weeks." In practice, 2026 practitioner reports put fax at 6-8 weeks or more and mail at 6-12 weeks or more, a gap tied to IRS staffing cuts (Journal of Accountancy, 2025-2026).
Why is my EIN fax application taking so much longer than 4 business days?
The most common cause is a missing or unreadable return fax number, which silently shifts your application onto the slower mail track instead of the fax-back queue, per the IRS's own Form SS-4 instructions. Confirm your fax number is printed clearly, then call 800-829-4933 to check status before resending.
What do I write on Form SS-4 if I have no SSN or ITIN?
On Line 7b, the IRS's Instructions for Form SS-4 (Rev. Dec 2025) accept either "Foreign" or "N/A" for a responsible party with no SSN, ITIN, or EIN. Either entry is valid. Leaving the line blank, not the wording you choose, is what typically causes delay or rejection.
Can I apply for two EINs on the same day for two different LLCs I own?
Not through the same responsible party. The IRS limits applicants to one EIN per responsible party per day, across every channel, online, phone, fax, and mail combined. Two same-day applications naming you as responsible party will not both go through.
Should I call the IRS or resend Form SS-4 if I haven't heard back?
Call the EIN status line at 800-829-4933 rather than resubmit. Realistic 2026 follow-up timing is roughly 3 weeks after faxing or 8 weeks after mailing, not the outdated two-week rule of thumb, and duplicate submissions can create their own processing conflicts.
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Disclaimer: OpenEntity is a private business consulting firm and does not provide legal or tax advice. Information in this article reflects standard public IRS procedures and third-party reporting as of July 2026, both of which can change without notice. Confirm current numbers on IRS.gov and consult a qualified tax advisor, CPA, or attorney for guidance specific to your situation.