KPMG tax staff should know IRS Circular 230 rules

Circular 230 is the rulebook behind the tax workday

At KPMG, the risk usually starts in ordinary places: a return position, a client email, a memo draft, or a manager sign-off that moves too fast. IRS Circular 230 is what turns those everyday actions into professional responsibility issues, because it governs practice before the IRS and sets the standards for competency, diligence, and ethical behavior.

The Office of Professional Responsibility is the enforcement arm behind that system. The IRS says it investigates and disciplines Circular 230 violations to protect taxpayers and preserve confidence in the tax system, and it has exclusive delegated authority over tax practitioner conduct and discipline. For a tax team, that means this is not just a compliance concept sitting in a policy binder. It is a live rule set that can affect individual credentials, supervisor exposure, and the firm’s reputation in the next busy-season cycle.

Where the rules reach into daily KPMG work

Practice before the IRS is broader than many people assume. The IRS says it includes preparing and filing documents, corresponding and communicating with the IRS, giving oral or written tax advice, and representing a client at conferences, hearings, and meetings. In other words, the moment a tax professional moves from calculation to advocacy, Circular 230 starts to matter.

That scope matters for KPMG because tax work is rarely confined to one lane. A staffer polishing a workpaper, a manager defending a filing position, a partner on an IRS call, and an in-house tax professional coordinating responses can all be inside the same regulatory frame. If a person is advising on a disputed position, shaping the language of a response, or deciding what to tell the IRS, the question is no longer just whether the technical answer is defensible. It is whether the conduct meets the IRS standard for professional practice.

The IRS guidance also makes clear that these rules apply to attorneys, CPAs, enrolled agents, and other covered individuals. That broad coverage should be a warning sign for any team that assumes title or seniority creates a safe zone. It does not.

The moments that create risk for people, managers, and the firm

The biggest exposure usually comes from three recurring situations.

First, advice that is not documented well enough. If a tax position depends on a chain of assumptions, the file needs to show the basis for the recommendation, the risks considered, and the reasoning behind the conclusion. A clean answer given in a meeting is not the same thing as a defensible record after the fact.

Second, supervision that is too loose. Circular 230 risk is not only about the person writing the memo or signing the filing. It also attaches to the people overseeing the work. A manager who lets juniors push language beyond what the facts support, or a reviewer who does not pause when a position shifts from compliance into advocacy, creates exposure above the individual level.

Third, client communications that blur the line between persuasion and precision. Correspondence with the IRS is itself practice before the IRS, so the usual shortcuts can become problems quickly. If a response overstates certainty, hides a material fact, or glosses over a conflict, the issue is no longer just a quality miss. It can become a professional responsibility issue.

For KPMG professionals, the practical checkpoint is simple: before sending advice, filing a position, or handling an IRS exchange, make sure the facts, authorization, and documentation all line up. If they do not, stop and fix the record before the deadline forces a bad decision.

What OPR is watching now

The IRS has made the OPR guidance more operational, and that should get attention inside any tax practice. Current guidance and resources cover conflicts of interest, the line between tax return preparation and practice, expedited suspension, professional responsibility for in-house tax professionals, and records related to practitioner misconduct. The page also includes alerts on due process in Circular 230 matters, self-reporting misconduct, data security, written information security plans, client authorizations, and fraudulent refund or phishing scams.

That list maps directly onto the kinds of breakdowns that happen in real teams. Conflicts are often discovered late, after the client relationship is already active. Client authorization issues can get buried in workflow assumptions. Data security and phishing risks are no longer just IT problems when tax teams are exchanging sensitive filings, identity data, and account access information under deadline pressure.

The message for leaders is blunt: if your team handles client data, tax positions, or IRS correspondence, you need controls that are visible and repeatable. If your team supervises in-house tax work or outside specialists, you need a process for identifying when a matter has crossed into professional responsibility territory. The IRS is telling practitioners exactly where it expects discipline.

Why appraisers and filing-season preparers matter too

OPR’s reach is wider than the traditional law-firm or accounting-firm model. The IRS says it also has jurisdiction over appraisers who submit appraisals supporting tax positions and over tax return preparers in the IRS Annual Filing Season Program. That matters for KPMG teams working on valuation, transaction planning, and any engagement where appraisals support a tax outcome.

If an appraisal is part of the tax story, it is not just a valuation exercise. It can become part of the practitioner-conduct framework. The same is true when a filing position depends on work performed by another covered professional. Teams need to know who is in the chain, what standards apply, and whether the engagement file reflects that reality.

The rulebook is formal, and the penalties are real

Circular 230 is codified in 31 CFR Part 10, and the structure itself shows how seriously the IRS treats practitioner conduct. The regulations are divided into authority to practice, duties and restrictions, sanctions, disciplinary proceedings, and general provisions. This is a discipline system, not a loose set of best practices.

The Treasury Department’s 2014 edition of Circular 230 says the Secretary of the Treasury may suspend or disbar practitioners, censure them, and impose monetary penalties for specified misconduct. That is the practical consequence of getting the day-to-day judgment calls wrong. The risk is not only reputational. It can affect a person’s ability to practice and a firm’s ability to trust its own internal review chain.

The public enforcement record is also hard to ignore. The IRS says it publishes disciplinary sanctions in the Internal Revenue Bulletin, and its sanctions archive includes bulletin and announcement numbers and dates of sanctions imposed over the last 25 years. It also publishes final agency decisions once they become final. For a large firm, that creates a concrete record of how discipline has been used and what kinds of conduct get noticed.

What the proposed modernization signals for tax teams

Treasury and the IRS issued proposed Circular 230 amendments on December 26, 2024, with comments due February 24, 2025 and a public hearing scheduled for March 6, 2025 at 10 a.m. ET. The proposal would eliminate provisions related to registered tax return preparers, classify certain contingent fee arrangements as disreputable conduct, and create new appraisal standards and appraiser disqualification rules.

Even as a proposal, that package tells tax teams where the pressure is headed. The IRS is tightening attention on who can practice, how contingent arrangements are treated, and how appraisal work supports tax positions. For a firm like KPMG, that means any team touching valuation, fee structure, or practitioner supervision should treat Circular 230 as a live planning issue, not a background legal note.

What to double-check before the next deadline cycle

Before the next filing push, tax teams should pause on a short list of questions:

• Is the advice documented well enough that someone outside the deal team can follow the reasoning?

• Has every conflict of interest been identified early, not after the position is already set?

• Are client authorizations current and matched to the actual work being performed?

• Are juniors being supervised closely enough that unsupported language does not make it into a memo or filing?

• If the matter involves the IRS directly, does everyone understand that correspondence and meetings count as practice before the IRS?

• If an appraisal supports the position, has the team checked who prepared it and whether the work raises practitioner-conduct issues?

That is the real Circular 230 test at KPMG. The rule does not just punish bad actors after the fact. It shapes how tax work should be built, reviewed, defended, and communicated before the deadline pressure hits.