IRS Form 2848 and 8821 fax numbers
The IRS fax number for Form 2848 or Form 8821 is 855-214-7519 (Memphis) or 855-214-7522 (Ogden), depending on the state you live in, and 855-772-3156 for an address outside the United States. All three reach the IRS Centralized Authorization File unit. Each is below with its mailing address, the official page and the date we last checked it.
Memphis CAF unit
855-214-7519
this week · 10-29-2026 Official website Fax this number
Use this number if you live in Alabama, Arkansas, Connecticut, Delaware, the District of Columbia, 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, or West Virginia.
Ogden CAF unit
855-214-7522
1 week ago · 10-23-2026 ProntoFax user, 1 send in 90 days Fax this number
Use this number if you live in 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, or Wyoming.
International CAF team
855-772-3156
this week · 10-29-2026 Official website Fax this number
Use this number for a military APO or FPO address, American Samoa, the Northern Mariana Islands, Guam, the U.S. Virgin Islands, Puerto Rico, a foreign country, or any other address outside the United States. The IRS gives a separate number for faxes sent from outside the United States. A ProntoFax fax goes out from the United States, so this is the one for it.
ProntoFax is an independent fax service. We are not affiliated with, endorsed by, or connected to the Internal Revenue Service.
Where to mail Form 2848 or 8821
If you mail the form instead, the address follows the same split as the fax numbers. Send it one way only, by fax, by mail or online.
Memphis CAF unit
Internal Revenue Service
5333 Getwell Road, Stop 8423
Memphis, TN 38118
Mail Form 2848 or 8821 here if you live in Alabama, Arkansas, Connecticut, Delaware, the District of Columbia, 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, or West Virginia.
Fax: 855-214-7519
this week · 10-29-2026
Ogden CAF unit
Internal Revenue Service
1973 Rulon White Blvd., MS 6737
Ogden, UT 84201
Mail Form 2848 or 8821 here if you live in 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, or Wyoming.
Fax: 855-214-7522
1 week ago · 10-23-2026
International CAF team
Internal Revenue Service
International CAF Team
2970 Market Street, MS 4-H14.123
Philadelphia, PA 19104
Mail Form 2848 or 8821 here for an address outside the United States, including military mail and the U.S. territories.
Fax: 855-772-3156
this week · 10-29-2026
Fax, mail or submit online
The instructions give three ways to file either form: online, by fax, or by mail. A form signed with an electronic signature, including a typed name or a scanned image of a signature, can only be submitted online.
If you checked the box on line 4, the form is for a specific matter and goes to the IRS office handling that matter, not to these numbers.
To revoke a Form 2848 without naming a new representative, write REVOKE across the top of the first page, sign and date it, and fax or mail it to the same number or address.
Form 2848 or Form 8821
Form 2848 is a power of attorney: it lets a representative, such as an attorney, accountant or enrolled agent, act for you before the IRS. Form 8821 only lets the person you name see or receive your tax information, without representing you. Both go to the same numbers and addresses.
How we verify fax numbers
Every number on this page was published by the agency itself. The two columns beside it say when that number was last confirmed, and what confirmed it.
The Verified by column says which of these it was:
Official website the agency publishes this number. The date is the day we read it from their page or their published file.
ProntoFax user a fax sent through ProntoFax reached this number and the receiving machine confirmed it. The date is the most recent delivery.
ProntoFax automation we called the number and heard a fax tone answer. Nothing is sent and the call ends as soon as the line answers.
Needs verification recent attempts to this number did not go through. It stays listed because the agency still publishes it, but check it against your own letter before you send.
The date is colored by how long ago it was:
Within 90 days 91 to 270 days Over 270 days
We never add a number because someone faxed it. A number appears here only if the agency published it. A delivered fax can confirm a number, but it can never create one.
What goes to these numbers
The instructions send these to the numbers and addresses on this page:
- Form 2848, Power of Attorney and Declaration of Representative, with line 4 left unchecked
- Form 8821, Tax Information Authorization, with line 4 left unchecked
- A Form 2848 marked REVOKE, to revoke it without naming a new representative
Before you send
The IRS asks for no cover sheet. If you add one, include:
- The taxpayer’s name as it appears on the form
- The representative’s or designee’s name
- A daytime phone number
- The number of pages, including the cover sheet
Sign it by hand. A faxed form with a typed or pasted signature is an electronic signature, and the IRS takes those online only.
Send it once. Faxing and also mailing or submitting online leaves the unit two copies to reconcile.
The IRS says these numbers may change without notice. We check them on its own page, and the date we last did is shown beside each one.
Official IRS pages
Send it from your phone
Photograph each page of the signed form with your phone camera, or upload a PDF.
Add a cover sheet with the taxpayer and representative names, if you want one.
Check every page in the preview before anything goes out.
Enter the number for your state from above. We check that the line can receive.
Pay $2.99 and watch it send. If it is not delivered, you are not charged.
Pay only when delivery is confirmed
Why ProntoFax
- Flat $2.99 per delivered fax, no subscription
- No account or sign-up required
- We validate the fax line before you pay
- No charge if your fax does not go through
- Email receipt with delivery time, page count, and a link to view the document you sent
Questions about faxing Form 2848 or 8821
Can Form 2848 be faxed?
Yes, if it is signed by hand and line 4 is not checked. The instructions list fax as one of three ways to file it, with the numbers in their Where To File Chart.
Is the Form 8821 fax number the same?
Yes. The Form 8821 instructions print the same chart, with the same three numbers and addresses.
Which number do I use?
The one for the state you live in: Memphis for the eastern group, Ogden for the western group, and the international team for an address outside the United States. The state lists are under each number above.
Can I fax a form with an electronic signature?
No. The instructions say a form with an electronic signature, which includes a typed name or a scanned signature, may only be submitted online.
How much does it cost?
$2.99 for one fax of up to 25 pages. No subscription and no account. Your card is held and only charged once delivery is confirmed.