Form 2848 vs Form 8821: Power of Attorney and Tax Information Authorization

2026-07-10

Last reviewed: July 9, 2026. This article reflects current IRS rules and EA exam requirements as of this date.

Form 2848 and Form 8821 look similar. They are not. One grants representation authority. One grants information access only. Confusing them is one of the most common Part 3 mistakes on the EA exam.

Form 2848: Power of Attorney and Declaration of Representative

This is the representation form. When a taxpayer signs Form 2848, they're telling the IRS: "This person can act on my behalf. They can receive my confidential tax information, make arguments, negotiate settlements, sign documents, and represent me in audits, appeals, and collection matters."

Who can use it: Enrolled Agents, CPAs, and attorneys. Unenrolled preparers (PTIN-only) cannot use Form 2848. They can prepare returns but cannot represent clients.

Must be signed by both the taxpayer and the representative
Lists specific tax matters (type of tax, tax years). not a blanket authorization
Representative gets a Centralized Authorization File (CAF) number
The IRS sends copies of all correspondence to the representative
A new 2848 is needed if the tax years or matters change

Form 8821: Tax Information Authorization

This is the disclosure-only form. It tells the IRS: "You can send this person my tax information." It does NOT authorize representation. The appointee cannot negotiate, sign documents, or advocate on the taxpayer's behalf.

Who uses it: Lenders (need tax transcripts for mortgage applications), financial advisors (need tax data for planning), insurance auditors, and anyone who needs access to a taxpayer's IRS file without representation authority.

Authorization for disclosure only. no representation rights
The appointee receives tax information but cannot act on the taxpayer's behalf
Also assigns a CAF number to the appointee
Used for specific purposes like mortgage applications, not ongoing representation

The EA Exam Trap

The SEE will give you a scenario and ask which form to use. The distinction is always: does this person need to act on the taxpayer's behalf, or just receive information?

Taxpayer being audited, wants an EA to handle it → Form 2848
Taxpayer applying for a mortgage, lender needs tax transcripts → Form 8821
Taxpayer wants CPA to negotiate an offer in compromise → Form 2848
Taxpayer's financial planner needs last 3 years of returns → Form 8821

Authorization Duration

Form 2848 remains in effect until the taxpayer revokes it or the matter is resolved. Form 8821 stays in effect until the specified date or the taxpayer revokes it. Neither form needs annual renewal. Once filed, the authorization persists.

Need to reference these or other forms? The IRS Form Lookup has 19 common forms with purpose, filing rules, key sections, and EA exam relevance. Search by number or name.

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