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Form 8821
Tax Information Authorization
Form 8821 — Tax Information Authorization
IRS (United States)
2025 edition
federal · United States
Fillable PDF · Free to download and print · Available
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Read through the entire form before you begin to understand what information you will need.
Gather required documents: identification, financial records, and any supporting paperwork referenced in the form instructions.
Complete each section carefully. Required fields are typically marked with an asterisk (*).
Double-check all entries for accuracy — especially names, dates, identification numbers, and dollar amounts.
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Save or print your completed form. Keep a copy for your records before submitting to IRS.
Form 8821 (Tax Information Authorization) is typically required by individuals or organizations dealing with IRS in federal jurisdiction. This tax form is commonly used for official filings, applications, or compliance purposes.
Individuals who need to file or apply with IRS
Businesses and organizations with tax obligations
Tax professionals, accountants, and legal representatives filing on behalf of clients
Anyone required to submit Form 8821 as part of a regulatory or compliance process
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