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of 8821/2848’s›Caution:

Entering Tax Information Authorization (TIA) on Form 8821 Database

Internal Revenue Manual Part 21. Customer Account Services · 2026-10-03 edition · updated 2026-10-04 · United States

Once the Form 8821 input screen in the Form 8821 Database has been accessed, enter the applicant's authorization information from the applicant's Form 8821, Form 2848, Form 8802 or clone the information, when possible.

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▸Contents — Internal Revenue Manual Part 21. Customer Account Services
Internal Revenue Manual Part 21. Customer Account Services

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