Before you fax
The IRS recommends applying online when eligible. If you apply by fax, the current IRS instructions say to include a return fax number so the EIN response can be faxed back.
Official source checkedwww.irs.gov ↗
IRS · verified routing workflow
Fax IRS Form SS-4 to apply for an EIN in the U.S.
Current IRS fax destination for Form SS-4 when the principal business or legal residence is in a U.S. state or the District of Columbia.
Send this fax
Use the verified number below to prefill the sender. You can still review it before payment.
Use number 855-641-6935 →MORE VERIFIED ROUTES
Start with the task — not the fax number.
Fax IRS Form 3911 from Florida, Texas & Austin-routed states
Austin Refund Inquiry Unit
Open workflow →Fax IRS Form 3911 from California and western states
Fresno Refund Inquiry Unit
Open workflow →Fax IRS Form 3911 from New York
Brookhaven Refund Inquiry Unit
Open workflow →Fax IRS Form 3911 to the Kansas City Refund Inquiry Unit
Kansas City Refund Inquiry Unit
Open workflow →Fax IRS Form 2848 to the Memphis CAF Unit
Memphis CAF Unit
Open workflow →Fax IRS Form 2848 to the Ogden CAF Unit
Ogden CAF Unit
Open workflow →