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Send a fax nowDespite most tax filing moving online, the IRS still requires or accepts fax for a number of specific situations: submitting Form 2848 to authorize a representative, applying for an Employer Identification Number (EIN) via Form SS-4, responding to certain IRS notices that explicitly request a fax reply, and some installment agreement or hardship documentation. For many of these, fax is faster than mail and doesn't require an in-person visit.
These numbers come directly from current IRS form instructions. The IRS itself warns that fax numbers can change without notice, so it's worth a quick check on irs.gov before sending anything time-sensitive.
| Form / purpose | Who it applies to | Fax number |
|---|---|---|
| Form 2848 — Power of Attorney | Eastern U.S. states (Memphis CAF unit) | 855-214-7519 |
| Western U.S. states (Ogden CAF unit) | 855-214-7522 | |
| International / APO / FPO (Philadelphia CAF unit) | 855-772-3156 (304-707-9785 from outside the U.S.) | |
| Form SS-4 — EIN application | Principal business or residence in any U.S. state or D.C. | 855-641-6935 |
| No U.S. legal residence or principal place of business | 855-215-1627 (304-707-9471 from outside the U.S.) | |
| Form 8821 — Tax Information Authorization | Same routing as Form 2848 by state | See Form 2848 rows above |
| Response to an IRS notice (CP or LTR series) | — | Use the number printed on your specific notice, not a general line |
Numbers verified against current IRS form instructions. The "Eastern" group for Form 2848 covers Alabama, Arkansas, Connecticut, Delaware, D.C., Florida, Georgia, Illinois, Indiana, Kentucky, Louisiana, Maine, Maryland, Massachusetts, Michigan, Mississippi, New Hampshire, New Jersey, New York, North Carolina, Ohio, Pennsylvania, Rhode Island, South Carolina, Tennessee, Vermont, Virginia, and West Virginia. The "Western" group covers Alaska, Arizona, California, Colorado, Hawaii, Idaho, Iowa, Kansas, Minnesota, Missouri, Montana, Nebraska, Nevada, New Mexico, North Dakota, Oklahoma, Oregon, South Dakota, Texas, Utah, Washington, Wisconsin, and Wyoming.
Find the correct fax number on your IRS form's instructions or the notice you received. Using the wrong number can delay processing.
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Yes. The IRS accepts faxed submissions for a number of specific forms and situations, including Form 2848, Form SS-4, responses to certain notices, and some installment agreement requests. FaxNow transmits your document directly to the IRS fax number you enter, with no fax machine required.
It depends on your state of residence or business location, since submissions route to different IRS Centralized Authorization File (CAF) units — see the table above for the current Memphis, Ogden, and Philadelphia CAF numbers. Once you have the right number, FaxNow sends your signed Form 2848 there in about two minutes.
Yes. With FaxNow, you upload your PDF or scanned document, enter the IRS fax number, and we transmit it securely — no fax machine, no print shop, and no monthly subscription required.
FaxNow confirms delivery by email and in your account portal as soon as the transmission completes successfully, along with a copy of exactly what was sent — your proof of submission, ready whenever you need it.