IRS Power of Attorney (Form 2848) — Complete Practitioner Guide

Form 2848 — The Foundation of IRS Representation

Form 2848 (Power of Attorney and Declaration of Representative) is the foundational document for all IRS representation. Without a valid Form 2848 on file, practitioners cannot access client account information, receive IRS notices, or speak with IRS personnel on behalf of a client. Every IRS representation engagement should begin with a properly executed Form 2848.

Form 2848 authorizes the practitioner to: represent the taxpayer before the IRS; receive and inspect confidential tax information; perform acts on behalf of the taxpayer (subject to limitations); and receive copies of IRS notices and communications. The form is processed by the IRS Centralized Authorization File (CAF) unit and assigned a CAF number — a unique identifier that links the practitioner's authorization to the client's account.

Electronic Submission and CAF Processing

The fastest way to file Form 2848 is through the IRS Tax Pro Account at irs.gov/taxpros. This online system allows practitioners to submit Form 2848 electronically with the client's real-time digital authorization. The authorization is typically processed within minutes, compared to 5-10 business days for fax submissions and 4-6 weeks for mail submissions.

Tax Pro Account requirements: The practitioner must have an IRS online account and a CAF number. The client must have an IRS online account and be able to verify their identity. Once both parties are registered, the practitioner can request authorization online and the client can approve it in real time.

Fax submission: For clients who cannot use the online system, fax is the next fastest option. Fax Form 2848 to the appropriate CAF unit: (1) for individuals — fax to 855-214-7519; (2) for businesses — fax to 855-214-7522. Fax submissions are typically processed within 5-10 business days.

Scope of authorization: The tax matters listed on Line 3 define the scope of the practitioner's authority. Practitioners should list all relevant tax forms and years — a Form 2848 that only covers income tax will not authorize the practitioner to represent the client in payroll tax matters. For comprehensive representation, list all relevant forms: Form 1040, Form 941, Form 940, Form 1120S, etc.

Managing Multiple POAs and Revocations

Practitioners who represent clients with complex histories often need to manage multiple Form 2848 authorizations. The following best practices minimize confusion and ensure continuous authorization.

Revocation of prior POAs: When a new practitioner takes over a client's representation, the new Form 2848 automatically revokes prior authorizations for the same tax matters — unless the new form specifically states that prior authorizations are not revoked. Practitioners should always check whether the client has prior POAs on file and ensure the new Form 2848 properly addresses them.

Withdrawal of POA: When representation ends, practitioners should file a withdrawal of POA by sending a written statement to the IRS CAF unit. This removes the practitioner from the client's account and ensures the practitioner does not continue to receive IRS notices for a client they no longer represent.

Third-party designee: For simple matters (e.g., a single year's return), the practitioner can use the Third-Party Designee checkbox on Form 1040 instead of Form 2848. However, the Third-Party Designee authorization expires after one year and is more limited than Form 2848 — it does not authorize the practitioner to represent the client in examination or collection matters.

Frequently Asked Questions