In almost all cases, no — lawyers do not have to report crimes their clients tell them about, and usually they are prohibited from doing so. The duty of confidentiality and the attorney-client privilege cover nearly everything a client shares during a representation, including admissions of criminal conduct. But the protection is not absolute. A short list of exceptions lets a lawyer disclose information, and a smaller list actually requires it, mostly when someone’s life is at risk, when the lawyer’s own work is being used to commit fraud, or when a client has lied to a court.
Past Crimes Stay Confidential
If you confess a completed crime to your lawyer, that information is protected in virtually every scenario. The privilege exists so that clients can speak honestly and get competent advice, and it applies whether the crime was minor or serious. A client who tells a defense lawyer about a robbery from five years ago has not triggered any reporting exception. The lawyer cannot walk that information to the police, and no court can force the lawyer to testify about the conversation.
Under ABA Model Rule 1.6, which forms the basis for the ethics rules adopted in every state, a lawyer cannot reveal any information “relating to the representation of a client” unless the client gives informed consent, the disclosure is implicitly necessary to carry out the representation, or a specific exception applies.1American Bar Association. Rule 1.6 Confidentiality of Information The duty covers everything the lawyer learns during the representation, and it continues after the case ends.
The exceptions below are aimed at preventing future harm, not punishing past acts. A lawyer who volunteered a client’s past crime to authorities would be violating the rules and could be disciplined.
When a Lawyer May Report
Threats of Death or Serious Bodily Harm
The most widely recognized exception allows a lawyer to disclose information when doing so is reasonably necessary to prevent death or substantial bodily harm that is reasonably certain to occur.1American Bar Association. Rule 1.6 Confidentiality of Information The harm does not have to be imminent. A danger that is months away can still qualify if it is reasonably certain to happen.
If a client describes a specific plan to seriously injure someone, the lawyer has discretion under the ABA rule to warn the potential victim or contact law enforcement. An angry outburst is not the same as a detailed and credible plan, and the lawyer has to actually believe the disclosure is necessary to prevent the harm.
State variation matters here. The ABA Model Rule makes this disclosure optional, but some states have adopted mandatory versions that require the lawyer to disclose. Others have narrowed the exception or added conditions. Whether a lawyer may report or must report depends on the specific rule adopted where they practice.
Client Fraud That Involves the Lawyer’s Services
A lawyer may reveal confidential information to prevent a client from committing a crime or fraud that is reasonably certain to cause substantial financial injury to someone else, but only when the client has used or is using the lawyer’s own services to carry out the scheme.1American Bar Association. Rule 1.6 Confidentiality of Information A related provision lets the lawyer disclose information to help victims recover losses after a fraud has already occurred, again only when the lawyer’s services were part of it.
The connection to the lawyer’s work is the whole point. A client who mentions committing tax fraud entirely on their own, with no involvement from the lawyer, doesn’t trigger this exception. But if the lawyer drafted documents, formed entities, or prepared filings that were part of the scheme, the lawyer may disclose enough to prevent or undo the damage.
No fixed dollar amount defines “substantial” financial injury. That call is left to the lawyer’s professional judgment.
Defending Against a Client’s Claims
When a client sues a lawyer for malpractice, files a bar complaint, or accuses the lawyer of criminal conduct related to the representation, the lawyer may reveal confidential information to the extent reasonably necessary to defend against the claim.1American Bar Association. Rule 1.6 Confidentiality of Information The same exception applies in fee disputes. The disclosure has to be proportional to what the defense actually needs, not a wholesale release of the client file.
The Crime-Fraud Exception
One related doctrine is worth flagging because it often gets confused with reporting. If a client uses the lawyer’s services to plan or carry out a crime or fraud, the attorney-client privilege doesn’t protect those particular communications from being introduced later in court. The exception does not apply to conversations about crimes that were already finished before the client consulted the lawyer. And it is not itself a reporting obligation. It just means that if a court or grand jury later investigates, the lawyer can be compelled to testify. It doesn’t require the lawyer to volunteer anything.
When a Lawyer Must Report or Disclose
Lying to a Court
The clearest mandatory disclosure rule involves false testimony or evidence. Under Model Rule 3.3, a lawyer who knows their client has offered false evidence in a proceeding must take “reasonable remedial measures, including, if necessary, disclosure to the tribunal.”2American Bar Association. Rule 3.3 Candor Toward the Tribunal This duty explicitly overrides confidentiality.
Disclosure isn’t the first step. A lawyer who learns their client lied on the stand must first try to persuade the client to correct the testimony. If the client refuses, the lawyer may have to tell the court, even though that means revealing confidential information. The same duty applies to any witness the lawyer called.
This obligation lasts until the conclusion of the proceeding, meaning final judgment and exhaustion of appeals.2American Bar Association. Rule 3.3 Candor Toward the Tribunal After that, the general confidentiality rules take over again.
Corporate Lawyers and Securities Violations
Lawyers who represent publicly traded companies have an additional mandatory reporting duty that comes from federal law, not the ABA rules. Section 307 of the Sarbanes-Oxley Act directed the SEC to create professional conduct standards for attorneys who appear before the Commission in the representation of public companies.3Office of the Law Revision Counsel. 15 USC 7245 – Rules of Professional Responsibility for Attorneys The resulting regulations require “up-the-ladder” reporting.
A lawyer who becomes aware of evidence of a material securities violation by the company or its personnel must report it to the company’s chief legal officer or CEO. If those officers don’t respond appropriately, the lawyer must escalate to the audit committee or the full board. The word in the regulation is “shall.” The report stays inside the company; it doesn’t go to the SEC or the public. A qualified legal compliance committee can serve as an alternative reporting channel that satisfies the obligation once the report is made.4eCFR. a href=”https://www.ecfr.gov/current/title-17/chapter-II/part-205″ target=”_blank” rel=”noopener”>Part 205 Standards of Professional Conduct for Attorneys Appearing and Practicing Before the Commission
A parallel concept applies to any lawyer representing an organization, not just public companies. Under Model Rule 1.13, a lawyer who knows an officer or employee is violating the law in a way that could cause substantial injury to the organization must refer the matter up the internal chain, potentially to the board.5American Bar Association. Rule 1.13 Organization as Client If the highest authority fails to act and the violation is reasonably certain to cause substantial injury, the lawyer may then reveal information outside the organization even if that would otherwise breach confidentiality.
Other Statutes and Court Orders
Model Rule 1.6(b)(6) permits disclosure when necessary “to comply with other law or a court order.”1American Bar Association. Rule 1.6 Confidentiality of Information If a separate statute requires reporting, the confidentiality rules don’t override it.
Child abuse reporting is the most common example. Many states designate broad categories of professionals as mandatory reporters, and whether lawyers are included varies significantly. Some states explicitly include attorneys, some exempt them for information learned through privileged communications, and others are ambiguous. A lawyer facing this question has to look at the specific state statute.
Court orders also compel disclosure. If a judge orders a lawyer to turn over information after finding that no privilege applies, the lawyer has to comply. Ignoring a valid order carries contempt sanctions regardless of the ethics rules.
When Silence Isn’t Enough: Withdrawal
Sometimes a lawyer can’t report a client’s conduct but also can’t keep representing the client. A lawyer must withdraw when continuing the representation would violate the professional conduct rules or when the client insists on using the lawyer’s services to commit or further a crime or fraud.6American Bar Association. Rule 1.16 Declining or Terminating Representation
Walking away isn’t always enough. If a lawyer has produced work that the client is still using in a fraud, a “noisy withdrawal” may be needed. That means formally disavowing prior documents or opinions so that third parties know the lawyer no longer stands behind them. The lawyer doesn’t reveal the underlying confidential details, only enough to cut off continued use of the lawyer’s work.
The Bottom Line for Clients
What you tell your lawyer about something you already did is almost certainly protected, and it stays protected after the representation ends. What can change that picture is a future plan to seriously hurt someone, a scheme that involves the lawyer’s own work, false testimony in a live case, or a specific statute that overrides confidentiality. The exact contours vary by state, and the choice between “may disclose” and “must disclose” often turns on which state’s version of the rule applies. If confidentiality is central to your decision to speak with a lawyer, it is a fair question to ask them directly before you say anything you want protected.