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Form 8821 · Tax Information Authorization

How to fax Form 8821 to the IRS.

Form 8821 lets a person or organization you name inspect or receive your confidential tax information. It does not let them represent you or speak for you; that takes Form 2848. The IRS takes it online, by fax or by mail, and the fax number depends on where you live.

See the fax number Fax Form 8821 now

Fax numbers checked against irs.gov on October 10, 2026.

The fax number

Which number to fax Form 8821 to.

Find the row that matches you and use that number. These are the numbers in the official instructions, read on October 10, 2026. The IRS says they may change without notice, so open the official page and confirm before you send.

Memphis CAF unit
855-214-7519

You live in: Alabama, Arkansas, Connecticut, Delaware, 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, West Virginia.

Ogden CAF unit
855-214-7522

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, Wyoming.

International CAF Team
855-772-3156
304-707-9785 from outside the United States

You live outside the 50 states, in: APO and FPO addresses, American Samoa, the Northern Mariana Islands, Guam, the U.S. Virgin Islands, Puerto Rico, a foreign country.

Official source: irs.gov, Instructions for Form 8821, Where To File Chart (Form 8821, revision January 2021). Toll-free 855 numbers cost the same as any US or Canadian number on HelpMeFax.

Before you press send

What to check first.

  • Sign it by hand. The IRS does not accept digital, electronic or typed signatures on a Form 8821 sent by fax or mail; a form signed electronically has to be submitted online.
  • Form 8821 is one page; fax it complete, with every line you need filled in.
If fax isn’t the best route

Other ways to file.

  • Online at IRS.gov/Submit8821, the only way to send a form signed electronically.
  • By mail, to the address in the same Where To File Chart.

After you fax it

  • Form 8821 is also how you delete or revoke an earlier tax information authorization; the instructions for line 5 explain how.
No fax machine needed

How to fax Form 8821 with HelpMeFax.

From a phone or a computer, with no app to install. Form 8821 is 1 page, so with a cover page it is $2.99, and there is no subscription.

  1. 1

    Complete and sign Form 8821

    Fill in the form and sign it by hand. Save it as a PDF, or photograph every page.

  2. 2

    Find your fax number

    Use the chart on this page for your situation, and confirm it on the official IRS page linked below it.

  3. 3

    Upload and send

    Upload at helpmefax.com, enter the IRS fax number, add a cover page if you want one, and pay by card: $2.99 for this form with a cover page, no subscription.

  4. 4

    Keep the confirmation

    Save the delivery confirmation email with your copy of the form. It records when the IRS fax system accepted it.

Busy lines are retried automatically, and the delivery confirmation is emailed to you and kept in your fax history. Faxing from a phone? See faxing from an iPhone or an Android phone.

FAQ

Faxing Form 8821.

You live in Alabama, Arkansas, Connecticut, Delaware, 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: 855-214-7519. 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: 855-214-7522. You live outside the 50 states, in APO and FPO addresses, American Samoa, the Northern Mariana Islands, Guam, the U.S. Virgin Islands, Puerto Rico or a foreign country: 855-772-3156 or 304-707-9785 (from outside the United States). Read from irs.gov on October 10, 2026; the IRS says these numbers may change without notice, so confirm at the official page before you send.
No. A Form 8821 sent by fax or mail must carry a handwritten signature. A form signed electronically has to be submitted online at IRS.gov/Submit8821.
No. Form 8821 lets the person or organization you name inspect or receive your tax information. It does not let them speak for you, sign agreements or represent you before the IRS; that takes Form 2848.
One flat price per fax: $2.99 for 1–5 pages, $4.99 for 6–10, $8.99 for 11–25, $14.99 for 26–50, $24.99 for 51–100, then $0.15 per page. Form 8821 is 1 page, so with a cover page it is $2.99 unless you attach more. No subscription; pay by card.
Your document is encrypted with TLS 1.2+ in transit and AES-256 at rest, and the fax is a direct call to the IRS fax line, with no email inbox in between. You get a delivery confirmation by email when the IRS fax system accepts it. Documents are stored encrypted for 365 days, then deleted automatically.
Related IRS forms

Faxing another form?

All IRS fax numbers →
Form 2848 fax number
Power of Attorney and Declaration of Representative
Form 4506-T fax number
Request for Transcript of Tax Return

HelpMeFax is an independent fax service, not affiliated with or endorsed by the Internal Revenue Service, and this page is not tax advice. It restates the official instructions for Form 8821; when they differ, the IRS instructions win.

Fax Form 8821 today, without a fax machine.

Upload it, enter the IRS number, and keep the delivery confirmation. $2.99 for this form with a cover page.

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