IRS Power of Attorney (Form 2848): How to Authorize Your CPA to Represent You Before the IRS

By Yarik Yarosh, CPA ·September 5, 2026 ·5 min read

Written by Yarik Yarosh, CPA (US & Canada) September 5, 2026 · FL CPA license AC61704 · CPA Ontario

Form 2848 (Power of Attorney and Declaration of Representative) is the IRS document that authorizes a tax professional (CPA, enrolled agent, or attorney) to act on your behalf before the IRS. This includes receiving confidential tax information, responding to IRS notices, attending examinations, negotiating payment plans, signing agreements, and filing appeals. Without a Form 2848 on file, the IRS will not discuss your tax matters with anyone, including your CPA. The authorization is specific: it covers only the tax forms, tax years, and representative named on the form. A separate Form 8821 (Tax Information Authorization) allows a representative to receive your tax information but not act on your behalf. For most business owners, filing a Form 2848 with their CPA at the start of the engagement is best practice, as it allows the CPA to handle any IRS communications without requiring the business owner’s direct involvement.

✓Key takeaway

Form 2848 vs. Form 8821:

Factor	Form 2848 (Power of Attorney)	Form 8821 (Tax Information Authorization)
Receive tax information	Yes	Yes
Speak with IRS on your behalf	Yes	No
Sign agreements	Yes (if authorized)	No
Represent at audits	Yes	No
File appeals	Yes	No
Negotiate payment plans	Yes	No
Duration	Until revoked or superseded	Until revoked or 7 years
Who can be named	CPA, EA, attorney, other authorized practitioners	Anyone (including non-practitioners)

What Form 2848 covers:

Part	Information
Taxpayer information	Name, SSN/EIN, address, phone
Representative information	Name, CAF number, PTIN, license/bar number
Tax matters	Specific form numbers (1040, 1120-S, 941, etc.)
Tax years/periods	Specific years or quarters covered
Specific authorizations	Receive refund checks, sign returns, substitute or add representative
Acts authorized	All acts you can perform, or specific limitations

Common configurations:

Scenario	Forms/Years to Authorize
New CPA engagement (individual)	Form 1040 for current year + 3 prior years
New CPA engagement (S-Corp)	Form 1120-S + Form 1040 for current + 3 prior years
Audit representation	Specific form and year under examination
Ongoing payroll	Form 941 for current + future periods
Collection matter	Form 1040 (or 1120-S) for the specific tax years at issue

How does the Form 2848 process work?

Hypothetical example

Round numbers. A business owner receives an IRS notice (CP2000 proposed adjustment) for their 2023 tax year. They want their CPA to handle everything.

Step 1: Complete Form 2848

Field	Entry
Taxpayer name and SSN	Business owner’s information
Representative	CPA’s name
CAF number	CPA’s Centralized Authorization File number
PTIN	CPA’s Preparer Tax Identification Number
Tax form	1040
Year(s) or period(s)	2023
Specific use not recorded on CAF	Leave blank (for general authorization)
Acts authorized	All acts
Signing authority	Check box to authorize representative to sign

Step 2: Submit the form

Method	Timeline
IRS Tax Pro Account (online)	Processed immediately
Fax to CAF unit	2-4 weeks processing
Mail to CAF unit	4-6 weeks processing

The online submission through the IRS Tax Pro Account is strongly preferred. It takes effect immediately, allowing the CPA to call the IRS the same day.

Step 3: CPA responds to the notice With the Form 2848 on file, the CPA can:

Action	Without 2848	With 2848
Call IRS about the notice	Owner must call personally	CPA calls directly
Request additional time	Owner must request	CPA requests
Submit documentation	Owner must submit	CPA submits
Negotiate adjustment	Owner must negotiate	CPA negotiates
Sign agreement	Owner must sign	CPA can sign (if authorized)
File appeal	Owner must file	CPA files

What the 2848 does NOT authorize:

Action	Authorized by 2848?
File original tax returns	No (separate engagement)
Receive refund checks (unless specifically authorized)	Only if Box 5a is checked
Access IRS online account (irs.gov)	No (taxpayer-only access)
Authorize electronic filing (ERO)	No (separate Form 8879)
Represent for criminal matters	No (attorney required)

Revoking or replacing a Form 2848: Filing a new Form 2848 for the same tax matter and year automatically revokes the prior authorization (unless the new form explicitly states it does not revoke prior authorizations). To revoke without naming a new representative, the taxpayer sends a written revocation letter to the CAF unit.

Scenario	Action
Changing CPAs	New CPA files new Form 2848 (auto-revokes prior)
Firing CPA, no replacement	Taxpayer sends revocation letter to CAF unit
Adding a second CPA	New Form 2848 with “Do not revoke” checked
CPA retires/passes away	Authorization remains until revoked by taxpayer

Filing Form 2848 proactively (best practice): Business owners should file a Form 2848 with their CPA at the beginning of every engagement, covering the current year plus three prior years. This ensures the CPA can respond immediately if any IRS notice arrives, rather than scrambling to file the authorization while a response deadline is running.

Proactive Filing	Covers
Form 1040 (2021, 2022, 2023, 2024)	Individual income tax
Form 1120-S (2021, 2022, 2023, 2024)	S-Corp income tax
Form 941 (all quarters 2021-2024)	Employment tax
Form 940 (2021-2024)	Federal unemployment tax

This comprehensive authorization allows the CPA to handle any IRS matter for the covered periods without delay.

Illustrative numbers only, not a real client and not advice for your facts.

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Cite this page

Yarik Yarosh, CPA. "IRS Power of Attorney (Form 2848): How to Authorize Your CPA to Represent You Before the IRS." Blue Cloud CPA, September 5, 2026. https://bluecloudcpa.com/guides/small-business-irs-power-of-attorney-form-2848

This guide is general information, not tax advice for your specific situation. Which points apply, and how, depends on your facts.