IRS tax forms

Internal Revenue Service / Fax-TIN program

Apply for an EIN when the applicant has a U.S. legal residence or principal office

Use the number only for the documented purpose and routing rule below.

Just One Fax is not affiliated with Internal Revenue Service.

This listing does not guarantee delivery, processing, acceptance, or deadline treatment. Recheck the official instructions before sending.

Route decision

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01 Purpose
Apply for an EIN when the applicant has a U.S. legal residence or principal office
02 Region or eligibility
Applicants with a legal residence, principal place of business, or principal office or agency in one of the 50 states or the District of Columbia.
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 the applicant fax number on Form SS-4 so the IRS can fax the EIN back. Use this Fax-TIN line only for an EIN application.

Official source and check date

Recheck the route before sending.

Recipient
Internal Revenue Service
Fax
855-641-6935
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.

Compare nearby routes

Apply for an EIN from inside the U.S. when the applicant has no residence or principal office in a state or D.C.855-215-1627 / Fax-TIN programApply for an EIN from outside the U.S. when the applicant has no residence or principal office in a state or D.C.304-707-9471 / Fax-TIN program

Before transmission

Questions to answer before sending.

What is the Internal Revenue Service fax number for this purpose?

855-641-6935 is the fax number published in the cited official source for this specific purpose: Apply for an EIN when the applicant has a U.S. legal residence or principal office. Recheck the source immediately before sending.

How do I know whether this is the right regional route?

Applicants with a legal residence, principal place of business, or principal office or agency in one of the 50 states or the District of Columbia.

What should I send to this fax number?

Completed and signed Form SS-4, Application for Employer Identification Number. Include the applicant fax number on Form SS-4 so the IRS can fax the EIN back. Use this Fax-TIN line only for an EIN application.

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

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Send to 855-641-6935