IRS tax forms
Internal Revenue Service / Fax-TIN program
Apply for an EIN from inside the U.S. when the applicant has no residence or principal office in a state or D.C.
Use the number only for the documented purpose and routing rule below.
This listing does not guarantee delivery, processing, acceptance, or deadline treatment. Recheck the official instructions before sending.
Route decision
Is this the right fax route?
Match all three checks before using the number.
- 01 Purpose
- Apply for an EIN from inside the U.S. when the applicant has no residence or principal office in a state or D.C.
- 02 Region or eligibility
- Applicants without a legal residence, principal place of business, or principal office or agency in any state or the District of Columbia, when the fax is sent from within the United States.
- 03 Required form or document
- Completed and signed Form SS-4, Application for Employer Identification Number.
Submission notes
What to put on the route.
Routing instructions
Include a return fax number on Form SS-4. The instructions identify this line for qualifying applicants sending from within the United States.
Official source and check date
Recheck the route before sending.
- Recipient
- Internal Revenue Service
- Fax
- 855-215-1627
- Last checked
As of August 24, 2026, the linked Internal Revenue Service source listed this number for the purpose shown. Just One Fax is not affiliated with or endorsed by Internal Revenue Service.
Before transmission
Questions to answer before sending.
What is the Internal Revenue Service fax number for this purpose?
855-215-1627 is the fax number published in the cited official source for this specific purpose: Apply for an EIN from inside the U.S. when the applicant has no residence or principal office in a state or D.C.. Recheck the source immediately before sending.
How do I know whether this is the right regional route?
Applicants without a legal residence, principal place of business, or principal office or agency in any state or the District of Columbia, when the fax is sent from within the United States.
What should I send to this fax number?
Completed and signed Form SS-4, Application for Employer Identification Number. Include a return fax number on Form SS-4. The instructions identify this line for qualifying applicants sending from within the United States.
Does this listing guarantee acceptance?
No. The linked source listed this route on August 24, 2026, but only the recipient can determine delivery, eligibility, processing, acceptance, or deadline treatment.
Number prefilled, decision still yours
Prepare one careful fax.
Open the send flow with 855-215-1627 prefilled. Compare it with the official source again before checkout.
Send to 855-215-1627