IRS Form 8821 (Tax Information Authorization)
Fax Form 8821 so the IRS can discuss your tax information with someone you name. Routing matches Form 2848: use the CAF fax number for your state of residence.
Fax numbers
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Send with this number
Memphis CAF (eastern and southern states — see IRS Where To File chart)
+1 855-214-7519
Verified October 24, 2026. Source: official page.
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Send with this number
Ogden CAF (western and midwestern states — see IRS Where To File chart)
+1 855-214-7522
Verified October 24, 2026. Source: official page.
- Send with this number
Other IRS forms
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IRS Form 2553 (S corporation election)
Elect S corporation status
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IRS Form 2848 (Power of Attorney)
Authorize an eligible person to represent you before the IRS
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IRS Form 4506-T (tax transcript)
Request a tax transcript
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IRS Form SS-4 (EIN application)
Apply for an Employer Identification Number (EIN)
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