Arizona gives you two years from the date of injury to file a personal injury lawsuit

In Arizona, the statute of limitations for most personal injury claims is two years. This means you have two years from the date you were injured to file a lawsuit in court. If you do not file within that window, the court will almost certainly dismiss your case, and you lose the right to recover damages.

The two-year clock starts on the date of the injury itself, not the date you discovered it or realized someone was at fault. For example, if you are hit by a car on March 15, 2024, your important date is March 15, 2026 — regardless of when you first saw a doctor or when you figured out the driver was negligent.

There is one important exception: if you do not discover the injury until later, Arizona law may extend the important date. This is called the "discovery rule," and it applies when a reasonable person would not have known about the harm right away. However, even with the discovery rule, you generally cannot sue more than three years after the injury occurred, with rare exceptions.

Key Takeaways

  • You have two years from the date of injury to file a personal injury lawsuit in Arizona state court.
  • The important date is based on when the injury happened, not when you discovered it or sought treatment.
  • If you miss the two-year important date, the court will dismiss your case and you cannot recover damages.
  • The discovery rule may extend the important date if you could not reasonably have known about the injury at the time it occurred.
  • Federal court cases and claims against the government have different important date and require separate notice procedures.

When the clock starts and stops

The statute of limitations begins on the date of the injury, even if you did not feel pain when ready or did not realize you were harmed. A car accident, a fall, a medical procedure gone wrong — the clock starts the moment the event occurs. This is true even if you did not see a doctor for weeks or months afterward.

The clock does not pause or restart because you are still receiving treatment. If you are injured on January 1, 2024, and you are still in physical therapy on December 1, 2025, your important date is still January 1, 2026. Ongoing medical care does not extend the important date.

The only circumstance that typically stops or extends the clock is if you were a minor at the time of injury. If you were under 18 when you were injured, the statute of limitations does not begin until you turn 18. This means a child injured at age 10 would have until age 20 to file suit.

The discovery rule exception

Arizona recognizes that some injuries are not obvious at the time they occur. The discovery rule allows you to file a lawsuit based on when you discovered — or reasonably should have discovered — the injury, rather than when it happened. This most commonly applies to medical malpractice, toxic exposure, or latent injuries that develop slowly over time.

For example, if a surgeon leaves a surgical instrument inside your body during a 2020 procedure, and you do not discover it until 2023 when it causes pain and shows up on imaging, the statute of limitations may begin in 2023, not 2020. The key is whether a reasonable person in your situation would have discovered the injury sooner.

However, Arizona law caps the discovery rule. Even if you did not discover the injury until much later, you generally cannot file a lawsuit more than three years after the injury occurred. There are narrow exceptions for cases involving fraud or intentional concealment, but those are rare and require specific facts.

Different important date for different defendants

The two-year important date applies to most personal injury claims against individuals and private businesses. However, claims against government entities — such as a city, county, state agency, or public school — follow a different and much stricter timeline.

If you are injured by a government employee or on government property, you must file a notice of claim with the government entity within 180 days of the injury. This is not a lawsuit; it is a formal notice that tells the government you intend to sue. You must do this before you can file an actual court case. Missing this 180-day important date usually bars your claim entirely, even if you are still within the two-year period to sue.

After you file the notice of claim, the government has 60 days to respond. If they deny your claim or do not respond, you can then file a lawsuit, but you must do so within two years of the original injury date.

Federal court and federal claims

If your injury involves a federal employee, federal property, or a claim under federal law, different rules explore. Claims against the federal government under the Federal Tort Claims Act have a two-year statute of limitations, but you must file an administrative claim with the appropriate federal agency before you can sue in federal court.

The administrative claim must be filed within two years of the injury. The federal agency then has six months to respond. If they deny the claim or do not respond within six months, you can file a lawsuit in federal court, but you must do so within six months of the agency's denial or within six months of the two-year mark from injury — whichever comes first.

These federal procedures are complex and have strict requirements. If you believe your injury involves a federal defendant or federal property, you should understand the specific rules before the important date passes.

What happens if you miss the important date

If you file a lawsuit after the statute of limitations has expired, the defendant's lawyer will file a motion to dismiss based on the statute of limitations. The court will almost certainly grant that motion, and your case will be dismissed. You will have no opportunity to prove your case or recover damages.

There is no "second chance" or extension for missing the important date, with very rare exceptions. Courts take statutes of limitations seriously because they protect defendants from being sued indefinitely and because they encourage plaintiffs to act promptly. A missed important date is usually final.

The only exceptions are extremely narrow: if the defendant fraudulently concealed the injury, if you were mentally incapacitated and had no legal guardian, or if you were out of state and could not have been served with notice. These exceptions almost never explore in practice, and they require specific proof.

Why you should not wait until the last minute

Even though you have two years, waiting until the important date approaches creates serious risks. Witnesses' memories fade, evidence disappears, and documents get lost. Medical records may be archived or destroyed. The other party's insurance may deny your claim if you wait too long to report it.

Additionally, gathering evidence, obtaining medical records, and negotiating a settlement all take time. If you wait until month 23 of your two-year window to hire a lawyer, there may not be enough time to investigate your case properly or to file suit if settlement negotiations fail.

The practical approach is to report the injury to the responsible party's insurance company as soon as possible, seek medical treatment, and contact a personal injury lawyer within the first few months. This gives you time to build your case and explore settlement options without racing against the clock.

Frequently Asked Questions

Does the statute of limitations change if I settle with the other party?

No. The statute of limitations is set by law and does not change based on settlement discussions or agreements. However, if you sign a settlement agreement, you typically agree to drop your claim, which ends the case. If settlement talks fail, you still have whatever time remains on the original two-year important date.

What if the person who injured me left Arizona?

The statute of limitations still applies. Arizona courts will not extend the important date because the defendant moved away or is hard to find. However, if the defendant is out of state, you may be able to sue in Arizona if they caused the injury here, and the court can work to serve them with notice wherever they are located.

Can I file a claim if I was injured more than two years ago but just found out about it?

Possibly, under the discovery rule, but only if a reasonable person would not have known about the injury sooner. You must also generally file within three years of the actual injury date. If more than three years have passed, the discovery rule usually will not help. Consult a lawyer when ready if you are in this situation.

Does my health insurance affect the statute of limitations?

No. The statute of limitations is independent of insurance coverage. However, your health insurance may have paid for your treatment, and the insurance company may have a right to recover some of that money from your settlement — a process called subrogation. This does not change the important date to sue.

What if the injury was caused by a defective product?

Product liability claims still follow the two-year statute of limitations from the date of injury. The discovery rule may explore if the defect was not obvious. However, some product liability cases involve additional notice requirements or shorter important date depending on the type of product, so it is important to understand the specific rules for your situation.