Under the California legal malpractice statute of limitations, you have one year from the date you discover your attorney’s error or four years from the date the error occurred, whichever comes first. That framework is set by California Code of Civil Procedure Section 340.6 and applies to any claim against a lawyer for professional mistakes other than actual fraud.1California Legislative Information. California Code CCP – 340.6 The shorter deadline is the one that controls, and in most cases that means the one-year discovery clock is what you are really working against.
How the One-Year and Four-Year Deadlines Work
Section 340.6 sets two limits and lets whichever expires first end the claim. The one-year period runs from when you discover, or reasonably should have discovered, the facts behind the attorney’s mistake. The four-year period runs from the date of the error itself, regardless of your awareness.1California Legislative Information. California Code CCP – 340.6
The four-year cap works as a backstop for cases where a client never learned anything was wrong. The one-year clock is what usually decides the outcome, because a year is not much time to evaluate what happened, find a new lawyer, and file a complaint.
When Does the Clock Actually Start
Neither period begins until you have suffered actual injury from the attorney’s mistake. This is the detail that trips up plaintiffs who assume the countdown starts the day the lawyer erred. It does not.1California Legislative Information. California Code CCP – 340.6
California courts define actual injury broadly but with a clear floor. Speculative harm or the mere threat of future problems is not enough. Any real, appreciable harm is. Paying another attorney to fix a missed deadline counts. An unfavorable court ruling traceable to the error counts. The full extent of your damages does not need to be known, only that some real harm has occurred.2California Law Revision Commission. Statute of Limitations for Legal Malpractice
On the discovery side, what matters is your awareness of the facts, not your grasp of the legal significance. If you learn your lawyer missed a filing deadline, the clock starts then, even if it takes you months to understand that a missed deadline is malpractice.3California Legislative Information. California Code of Civil Procedure 340.6 The statute also uses the phrase “should have discovered through the use of reasonable diligence,” so ignoring obvious warning signs will not preserve your claim. If a reasonable person would have investigated and that investigation would have revealed the error, courts treat you as though you knew.
Situations That Pause the Deadline
Section 340.6 lists five specific circumstances that toll the limitations period. California courts have been consistent that tolling is limited to these categories. Arguments for tolling on other grounds almost always fail.
- No actual injury yet. Both the one-year and four-year periods stay paused until you suffer real harm. This is the most common tolling situation, because the gap between an attorney’s error and the client’s resulting injury can stretch for months or years.
- Ongoing representation. If the attorney continues to represent you on the specific matter where the error occurred, the clock stays paused. The representation must involve the same subject matter, not just a continuing relationship on unrelated work.
- Willful concealment. If the attorney knows about the error and deliberately hides it from you, the four-year deadline is tolled. This provision pauses only the four-year limit. Once you actually discover the concealed facts, the one-year clock starts running normally.
- Legal or physical disability. If a condition prevents you from being able to file suit, the limitations period is tolled while the disability lasts.
- Pending fee arbitration. If a fee dispute is going through the State Bar’s mandatory arbitration process, the limitations period pauses from the filing of the arbitration request until 30 days after you receive notice of the decision or the arbitration otherwise ends.1California Legislative Information. California Code CCP – 340.6
The fee arbitration provision catches clients off guard. The tolling protection only lasts until 30 days after the arbitration concludes. If a malpractice claim is not filed within that window, the limitations period picks up again as if the pause never happened.
The Actual Fraud Exception
Section 340.6 covers professional mistakes but explicitly carves out claims based on actual fraud. If your attorney did not merely err but intentionally deceived you, the one-year and four-year framework does not apply. California’s general three-year statute of limitations for fraud under Code of Civil Procedure Section 338(d) governs instead.1California Legislative Information. California Code CCP – 340.6
Three years from discovery of fraud gives significantly more room than one year from discovery of negligence. The line between the two is not always clear, and courts look at the substance of the conduct rather than how the plaintiff labels the complaint.
Wrongful Conviction Claims
If your malpractice claim arises out of a criminal case and requires you to prove your factual innocence, Section 340.6 gives you two years from postconviction exoneration through a final ruling on the criminal matter. The standard four-year outer limit does not apply to these claims.1California Legislative Information. California Code CCP – 340.6 Without that exception, many wrongful conviction cases would be time-barred long before a defendant had any realistic opportunity to sue.
Relabeling the Claim Does Not Buy More Time
Plaintiffs sometimes try to frame a malpractice claim as breach of fiduciary duty or constructive fraud in the hope of using a longer statute of limitations. California courts have closed that route. Claims against an attorney acting in a professional capacity fall under Section 340.6 regardless of the label the plaintiff uses.4Justia. CACI No. 4120 Affirmative Defense – Statute of Limitations Choosing a different legal theory for what is fundamentally a complaint about how your lawyer handled your case will not extend the deadline.
What Happens if You File Late
If the applicable period expires before you file, the claim is over. A court will dismiss it on the attorney’s motion no matter how strong the underlying evidence of malpractice might be. There is no equitable exception, no hardship waiver, no judicial discretion to extend the deadline once it has run.3California Legislative Information. California Code of Civil Procedure 340.6 The dismissal is permanent.
Because the tolling rules are genuinely complex and the consequences of a miscalculation are absolute, treat the shortest plausible deadline as your real one. If you suspect your attorney made a costly error, consult another lawyer about it now rather than after you have finished researching on your own whether you have a case.