California’s Discovery Rule and the Statute of Limitations

Author
Ryan Sargent Ryan Sargent
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7 minute Read
Last modified
Aug 2, 2026

California law imposes time limits for many types of legal claims. These time limits are called the statute of limitations. In personal injury cases, the plaintiff must formally file their case before the expiration of the statutory deadline. Even if they have a great case, if they miss the deadline, their case will get dismissed.

But what happens if the plaintiff doesn’t know they have a case? What happens if they don’t find out until later that they are injured?

In California, the answer is the discovery rule. The discovery rule may pause, legally referred to as tolling, the statute of limitations if the victim doesn’t know that they have a claim right away. It’s important to know when the discovery rule applies and what it means for accident victims. In the following article, our personal injury lawyers explain the difference between the legal doctrines and what can influence the deadlines.

Why the California Statute of Limitations Matters in Your Case

Every accident claim in California operates under a strict legal clock, and understanding how it works can protect your right to compensation.

What Is the Statute of Limitations in a California Accident Claim?

In most cases, the statute of limitations in a California personal injury claim, California Code of Civil Procedure (CCP) § 335.1, is two years. This statute covers such accident claims as:

This deadline begins on the date of the injury, or in the case of a wrongful death, on the day your loved one passed away from their injuries from the accident. Your personal injury lawsuit must be filed with the court having jurisdiction before that deadline expires.

What Is the Purpose of the Statute of Limitations?

There are several reasons that there is a statute of limitations:

  • It encourages plaintiffs to bring their claims in a timely manner, while the evidence is still available and memories are fresh.
  • It gives all parties finality that issues are resolved within a set period of time.
  • It allows claims to be adjudicated shortly after the events in question, so they can be processed faster and more efficiently.

These reasons work together to keep the legal process fair for everyone involved.

Who Decides Which Statute of Limitations Applies?

The type of case determines the statute of limitations. For most negligence claims, the deadline is two years, unless an exception applies. California courts don’t decide what’s fair on a case-by-case basis. Instead, they apply the time limit set by law for that specific type of claim.

What is the Statute of Limitations for Claims Against a Government Agency?

Claims against a government agency work differently. California law, GOV § 911.2, requires victims to file a formal claim with the agency first, often within six months of the injury. This applies to cities, counties, school districts, and other public entities.

Will Filing an Insurance Claim Pause the Statute of Limitations?

Filing a claim with an insurance company does not pause or extend the deadline to sue. Settlement negotiations can continue for months, but the statute of limitations keeps running the entire time. Victims who wait on a settlement without filing a lawsuit risk losing their right to sue if talks fall through after the deadline passes.

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Understanding When the California Discovery Rule Applies to Your Case

Not every injury reveals itself immediately, and California law accounts for that reality through a specific legal exception.

What Is the Discovery Rule?

The discovery rule, also known as the delayed discovery rule, is a common law doctrine established by cases like Norgart v. Upjohn Co. 1999. This doctrine prevents the statute of limitations from expiring on a claim until the plaintiff discovers, or reasonably should have discovered, the cause of their injuries. The key factor is whether the plaintiff failed to discover the harm, and whether a reasonable person in the same position would have failed to discover it too.

When Does the Delayed Discovery Rule Apply?

The delayed discovery rule applies when:

  • The victim was unaware that they had a legal claim, and
  • A reasonable person in the same situation would not have discovered they had one either.

For example, a victim may have serious internal injuries that do not manifest themselves immediately after an accident. Some time passes, and they begin to experience additional pain and discomfort. They go to the doctor for a diagnosis and discover the issue, which can be linked back to the accident. In this situation, the discovery rule may apply.

What happens when the discovery rule applies?

When the discovery rule applies, the statute of limitations doesn’t start on the date of the accident. Instead, it starts on the date the victim discovered, or reasonably should have discovered, the injury. This gives victims more time to file a lawsuit, even if two years have already passed since the accident. Courts sometimes must decide exactly when the victim knew, or should have known, about their injury, which can turn into a dispute.

Most victims know they are hurt right away, so the standard two-year deadline applies. But when a victim genuinely doesn’t know they are injured, the clock doesn’t start until they discover the harm, or until a reasonable person in their position would have.

What Types of Injuries Are Often Missed at First?

Some injuries are harder to notice right after an accident. Common examples include:

  • Internal bleeding or organ damage
  • Soft tissue injuries, like whiplash
  • Traumatic brain injuries (TBI)
  • Spinal disc injuries that worsen over time
  • Nerve damage that causes delayed numbness or pain

These injuries may not cause noticeable symptoms until days, weeks, or even months later.

Will the Victim Need to Prove They Acted Reasonably?

Yes. The discovery rule doesn’t protect victims who ignore clear warning signs of an injury. Courts look at whether a reasonable person, in the same situation, would have investigated further. Victims who delay seeking medical care after noticing symptoms may have a harder time showing the rule should apply to their case.

Other Factors That Can Toll the Statute of Limitations

Delayed discovery is only one reason that a statute of limitations may pause. Other reasons may include:

  • The plaintiff is under the age of 18
  • The plaintiff is incarcerated
  • The plaintiff is insane
  • The defendant is out of state
  • The defense commits fraud or conceals the facts

A lawyer can help determine whether any of these exceptions apply to a specific case.

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What You Should Know About the Discovery Rule and the Statute of Limitations

If you are the victim of an accident, you should know two things about the discovery rule and the statute of limitations:

Seek Immediate Medical Attention

If you begin to suspect that you have an injury or harm from an accident or trauma, do not wait to get more information. See a doctor as soon as possible for a complete diagnosis. If you ignore the symptoms, you could be placing your life in danger.

Legally, you run the risk of the court ruling that you should have discovered the injury. Once you have seen a doctor, talk to a lawyer right away.

Don’t Assume That It Is Too Late to File a Legal Claim

The discovery rule is one type of exception to the statute of limitations. There are several exceptions. These exceptions apply to different types of claims, and there are a variety of circumstances that may prompt the tolling of the statute of limitations. Don’t make assumptions. Talk to a lawyer.

How Sargent Law Firm Injury Lawyers Can Help

At Sargent Law Firm Injury Lawyers, we want you to have every opportunity to get the compensation that you deserve when you are hurt. Our team can evaluate whether the statute of limitations applies and if the discovery rule may give you more time to file a case. We will look at all opportunities to pursue compensation for you.

Contact us today to talk about your case during a free case consultation.

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