How to Create an IRS Representation Engagement Letter for Enrolled Agents (with Free Template)
This guide walks an enrolled agent through the ten substantive steps of building an IRS representation engagement letter that satisfies 31 CFR Part 10 (Circular 230) disclosure obligations, documents Form 2848 or Form 8821 attachment plans, includes conflict of interest disclosure under sec 10.29, references OPR best practices under sec 10.36, and survives OPR scrutiny. Each step is one paragraph of working guidance. Estimated time end-to-end: 30 minutes from blank document to signed PDF when using an AI form builder. Formfy is the AI form builder enrolled agents use; the same builder produces the engagement letter, captures the e-signature, and collects a retainer in a single client touchpoint.
Before you start, gather six pieces of information: (1) the taxpayer legal name, address, and SSN or ITIN, (2) the IRS function involved (Examination, Collection, Appeals, Counsel), (3) the case number, taxpayer ID, or notice number, (4) the years and tax forms covered, (5) any known conflicts of interest with existing clients, and (6) the agreed fee structure (hourly, flat fee, or contingent for collection cases). With those six inputs, the substantive drafting takes under 30 minutes.
Step 1: Define representation scope (audit, collection, appeal, US Tax Court)
Begin by stating exactly what representation work the engagement covers. Common scopes: examination defense (field audit, office audit, correspondence audit), collection representation (installment agreement, offer in compromise, currently not collectible), appeals (formal Appeals Office, fast track mediation), and US Tax Court (note: only attorneys, EAs admitted to Tax Court bar via the non-attorney exam, and CPAs admitted to Tax Court bar can represent in Tax Court). Name the IRS function involved (Examination, Collection, Appeals, Counsel) and the case number, taxpayer ID, or notice number that triggers the representation. Out-of-scope items should reference an addendum process. Vague scope leads to fee disputes; specific scope leads to fast renewals and clean billing.
Step 2: Apply 31 CFR Part 10 plus Circular 230 disclosures
Reference 31 CFR Part 10 (Circular 230) compliance explicitly in the engagement letter. Required disclosures include: the EA enrollment number and status, compliance with Circular 230 sec 10.20 (information to be furnished), sec 10.21 (knowledge of clients omission), sec 10.22 (diligence as to accuracy), sec 10.27 (fees), sec 10.29 (conflicts of interest), sec 10.34 (standards with respect to tax returns and documents, affidavits, and other papers), sec 10.36 (procedures to ensure compliance), sec 10.37 (requirements for written advice), and sec 10.51 (incompetence and disreputable conduct). Also disclose the IRS Office of Professional Responsibility (OPR) as the disciplinary authority. Documenting Circular 230 reference reduces exposure in OPR proceedings and signals professionalism.
Step 3: Form 2848 attachment plan (years and forms covered)
Form 2848 (Power of Attorney and Declaration of Representative) is the IRS authorization form that must be filed before the EA can substantively represent the taxpayer. The engagement letter should include a Form 2848 attachment plan that specifies the years covered (typically the years under examination plus one year forward and one year back to capture related issues), the forms covered (Form 1040, Form 1120, Form 1065, employment tax forms by series, gift and estate tax forms by series), and the acts authorized (typical: receive and inspect confidential tax information; sign agreements, consents, or other documents; substitute or add representatives). The EA enrollment number (CAF number) appears in the representative declaration. File Form 2848 with the appropriate IRS function before the first IRS contact.
Step 4: Form 8821 tax info authorization (when not Form 2848)
Form 8821 (Tax Information Authorization) authorizes the EA to receive and inspect confidential tax information but does not grant representation authority. Use Form 8821 instead of Form 2848 when the engagement scope is limited to information access (transcript pulls, tax-account research, identifying open issues) without representation. Form 8821 is appropriate for pre-engagement diagnostics, second-opinion reviews, and ongoing monitoring of taxpayer accounts. Form 8821 expires as specified on the form (default seven years if no date listed). Like Form 2848, Form 8821 must specifically identify the years and tax forms covered. Engagement letters should state which form will be filed (Form 2848 for representation, Form 8821 for information only) and the consequence if the scope expands later.
Step 5: Fee and retainer structure
Pick one fee model and document it. Hourly: state the rate (typical EA rates run $150 to $400 per hour depending on experience and case complexity), billing increment (typically 0.1 hour), invoicing cadence, and retainer balance trigger. Flat fee: appropriate for predictable scope items like CP-2000 notice responses ($300 to $750), simple installment agreements ($500 to $1,200), or first-time penalty abatements ($300 to $600). Contingent fee: allowed under 31 CFR sec 10.27 only for cases involving examination, collection, or judicial proceedings (not for original returns). Most EAs combine: hourly base for engagement work plus a flat fee for specific milestones. State out-of-pocket pass-throughs (filing fees, court fees, transcript fees) explicitly. State the retainer amount, replenishment trigger, and refund treatment.
Step 6: OPR best-practices clause (Circular 230 sec 10.36)
31 CFR sec 10.36 (Procedures to ensure compliance) requires practitioners with principal authority and responsibility for overseeing a firm tax practice to take reasonable steps to ensure compliance with Circular 230. For solo EAs, sec 10.36 imposes the same compliance procedures at individual scale: documenting work product, maintaining client files, supervising any staff, and self-supervision. Engagement letters should reference sec 10.36 best-practices compliance to document the EA awareness of and adherence to firm-level compliance obligations. The clause typically reads: the EA will adhere to Circular 230 sec 10.36 procedures including written work-product policies, training and supervision of any staff, identification of compliance issues, and prompt remediation. OPR considers sec 10.36 violations in disciplinary proceedings.
Step 7: Conflict of interest disclosure (Circular 230 sec 10.29)
31 CFR sec 10.29 prohibits a practitioner from representing a client before the IRS if the representation involves a conflict of interest, unless the EA reasonably believes representation will be competent and diligent, the representation is not prohibited by law, and each affected client gives informed written consent. Common EA conflict scenarios: divorcing spouses with shared tax positions, partnership disputes, related-party transactions (parent-subsidiary, controlled groups), or estate matters with multiple beneficiaries. The engagement letter should include a conflict disclosure section that lists known conflicts at engagement start, documents informed consent if any, and reserves the right to withdraw if a conflict emerges later. Solo EAs should screen new engagements against the existing client list before issuing the letter.
Step 8: Termination and withdrawal process (Circular 230 sec 10.51)
State that either party can terminate with written notice. Common notice periods: immediate (for non-payment or client misrepresentation), 10 days, or 30 days. On termination, the EA files Form 2848 withdrawal documentation with the IRS to remove representation authority (typically by submitting a revised Form 2848 noting representative withdrawal or via the CAF Unit), transfers the client file under AICPA ET 1.400.200 analogs (return of client-provided records), and invoices for time accrued. Termination during an active examination requires coordination with the Revenue Agent or Appeals Officer; the IRS may require new Form 2848 from successor counsel. Circular 230 sec 10.51 (incompetence and disreputable conduct) addresses situations where the EA must withdraw to avoid sanctions. State withdrawal protocol explicitly.
Step 9: CPE attestation (72 hours per three-year cycle)
Reference the EA CPE requirement under 31 CFR sec 10.6(e): 72 hours of continuing professional education per three-year enrollment cycle, with a minimum of 16 hours per year and at least 2 hours of ethics or professional conduct each year. CPE must be completed through IRS-approved continuing education providers. The three-year cycle aligns with the EA renewal cycle, staggered by SSN last digit. The engagement letter should attest to current EA enrollment status and CPE compliance, signaling the client that the EA is authorized to represent and meets ongoing competency requirements. Some malpractice carriers and large clients require CPE attestation in writing as a baseline due-diligence requirement before engaging an EA on complex matters.
Step 10: Sign and audit trail
Use an e-signature workflow that produces a tamper-evident audit trail with timestamp, IP address, and consent to electronic records. The federal ESIGN Act and UETA (adopted in 49 states) make e-signed engagement letters legally equivalent to wet-ink for nearly all professional services contracts. Note that Form 2848 (the IRS power of attorney, separate from the engagement letter) accepts electronic signatures with KBA per the IRS Pub 1345 framework as updated by IRS Notice 2020-42. Store the signed engagement letter in a system that lets you retrieve it on 24-hour notice if a malpractice carrier, OPR investigator, or examiner asks. Formfy, DocuSign, Adobe Acrobat Sign, and Dropbox Sign all meet the ESIGN evidentiary bar. Document retention: at minimum the federal IRC 6107 three-year baseline, with seven-year retention as the conservative norm.
Free template and downloadable PDF
Formfy ships an EA representation engagement letter template that maps one-to-one to the ten steps in this guide. The template is editable in the AI form builder: describe the engagement in plain English and the builder returns a delivery-ready letter with the e-signature block, conflict of interest disclosure, OPR sec 10.36 best-practices reference, Form 2848 attachment plan, and an optional retainer payment field. The PDF version is generated automatically when the client signs and stored alongside the audit trail.
See also: /faq/enrolled-agents-irs-representation-engagement-letter for the FAQ companion hub covering 17 of the most common EA representation engagement questions.
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Start your free trialLast verified: 2026-04-25. This page is informational; it is not legal advice. Enrolled agents should review state-specific clauses and high-fee engagement caps with counsel.