Most tax preparation training programs skip this topic entirely. That’s a problem, because Circular 230 establishes the professional rules you’re operating under whether you know about them or not.
What It Is
Circular 230 is a set of regulations published by the U.S. Treasury Department (31 CFR Part 10). It governs the practice of representing taxpayers before the IRS. Attorneys, CPAs, and enrolled agents are fully subject to it. But several provisions apply to all paid tax return preparers, including PTIN-only holders.
The Provisions That Matter to You
Section 10.22 (Due Diligence): You must exercise due diligence when preparing and filing returns. If a client gives you information that looks incomplete or inconsistent, you have an obligation to ask questions. You cannot simply enter numbers and move on.
Section 10.34 (Standards for Returns): You cannot sign a return or advise a client to take a position unless there’s a reasonable basis for it. For undisclosed positions, the standard is “substantial authority.” For disclosed positions, the standard is “reasonable basis.”
Section 10.35 (Competence): You must possess the necessary competence to handle the work you take on. If a client brings you a complex partnership return and you’ve never prepared one, the competent response is to either get the training or refer the client.
Section 10.51 (Incompetence and Disreputable Conduct): This section defines conduct that can get you censured, suspended, or barred from practice. It includes willfully failing to file your own returns, misrepresenting your credentials, and giving false opinions through gross incompetence. That last one is particularly relevant if you’re relying on AI output without verification.
Why You Should Care
The IRS doesn’t care that nobody told you about these rules. Ignorance is not a defense. If you violate Circular 230 provisions, you face real consequences: censure, suspension, or disbarment from practice before the IRS.
If you participate in the Annual Filing Season Program (which you should), you explicitly consent to Subpart B of Circular 230, which includes the due diligence, competence, and standards-for-returns provisions.
Understanding Circular 230 is part of operating as a professional. It’s not optional reading.
For training that covers Circular 230, preparer penalties, and the full legal framework, visit musespring.com.