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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.
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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. Always confirm the correct fax number on the specific IRS notice or form instructions you received, since fax numbers vary by department and form type.
It depends on your state of residence or business location, since submissions route to different IRS Centralized Authorization File (CAF) units. The correct number is listed in the official Form 2848 instructions on irs.gov.
Yes. Online fax services let you upload a PDF or scanned document and transmit it to any fax number, including IRS fax lines, without owning physical fax hardware.
Most online fax services provide delivery confirmation once the transmission completes successfully, along with a record you can keep as proof of submission.