Department / office

International CAF fax numbers

Internal Revenue Service

Available destinations 2 Review a fax number before sending
Fax destinations

Select the correct fax number

Review the label and intended use before opening a destination or sending directly.

Department fax Verified

International CAF

Internal Revenue Service
(304) 707-9785

Outside the United States (U.S.)

Department fax Verified

International CAF

Internal Revenue Service
(855) 772-3156
Confirm destination instructions

Use the source page to make sure this office still accepts your document type by fax.

Open source