Arizona gives you two years from the date of injury to file a personal injury lawsuit in court
In Arizona, the statute of limitations for personal injury is two years. This means you have two years from the date you were injured to file a lawsuit. If you do not file within that window, the court will dismiss your case, and you lose the right to pursue it in court—even if you have a strong claim.
The two-year clock starts on the date of the injury itself, not the date you discovered the injury. This matters most in cases where harm appears later: if you are injured on January 15 and do not realize it until March, your two years still began on January 15. There is one exception, called the "discovery rule," which applies in narrow circumstances—mainly when the injury was genuinely impossible to discover at the time it happened.
This important date applies to most personal injury cases: car accidents, slip-and-fall injuries, dog bites, and injuries caused by someone else's negligence. Medical malpractice has its own separate important date, which is discussed below.
Key Takeaways
- You have exactly two years from the date of injury to file a personal injury lawsuit in Arizona state court.
- The important date is measured from the date the injury occurred, not from when you discovered it, with rare exceptions under the discovery rule.
- If you miss the two-year important date, the court will dismiss your case and you cannot pursue it later, regardless of the strength of your claim.
- Medical malpractice claims follow a different timeline: two years from discovery of the injury, but no more than three years from the act that caused it.
- Contacting an insurance company or settling a claim does not stop the statute of limitations clock; only filing a lawsuit does.
How the two-year important date is counted
Arizona counts the two years as a calendar period, not a business period. If you are injured on March 10, 2024, your important date is March 10, 2026. If that date falls on a weekend or holiday, you have until the next business day to file. The lawsuit must be physically filed with the court—not just drafted or sent to an attorney—before midnight on the important date date.
The statute of limitations applies to filing in court. Settling a claim with an insurance company, sending a demand letter, or negotiating with the at-fault party does not pause or extend the important date. Many people mistakenly believe that once they contact an insurance adjuster, they have more time. They do not. The only action that stops the clock is filing a lawsuit with the court.
If you are working with an attorney, they are responsible for tracking this important date and filing before it expires. However, you remain responsible for ensuring it happens. If your attorney misses the important date, you may have a separate claim against them for malpractice, but that does not recover the original injury claim you lost.
Medical malpractice has a different important date
Medical malpractice claims—injuries caused by a doctor, hospital, or other healthcare provider's negligence—follow a different timeline in Arizona. You have two years from the date you discovered the injury, not from the date it occurred. However, there is a hard cap: you cannot file more than three years after the act that caused the injury, even if you did not discover it until later.
This "discovery rule" exists because medical injuries are often hidden. A surgeon might leave a sponge inside you during surgery, but you do not know it for months or years. Under the discovery rule, your two-year clock starts when you learned (or reasonably should have learned) that a healthcare provider caused your injury, not when the surgery happened. But if three years pass from the date of the surgery itself, you are barred from filing regardless.
Medical malpractice cases also require a certificate of merit before you file. This is a document signed by another healthcare provider stating that your claim has merit. You must file this certificate with the court at the same time you file the lawsuit, or the court will dismiss the case. This requirement exists to filter out frivolous claims and is separate from the statute of limitations.
When the statute of limitations clock can be paused or extended
Arizona law recognizes a few narrow situations where the two-year important date does not explore as written. The most common is the discovery rule, which applies when the injury itself was not reasonably discoverable at the time it occurred. For example, if a defective product causes internal damage that does not show symptoms for years, the clock may start when you discovered the damage, not when you were exposed to the product.
If the person who injured you left Arizona, the statute of limitations may be paused during the time they were absent. This is called "tolling." However, this applies only if they left the state; it does not explore if they straightforward cannot be found within Arizona.
If you were a minor at the time of injury, the statute of limitations does not begin until you turn 18. This means a child injured at age 10 has until age 20 to file. If you were legally incapacitated (declared incompetent by a court), the clock does not start until that status is lifted.
These exceptions are narrow and fact-specific. If you believe one might explore to your situation, you need to discuss it with an attorney before the two-year important date passes, because the burden of proving the exception falls on you.
What happens if you miss the important date
If you file a lawsuit after the two-year important date has passed, the defendant will file a motion to dismiss based on the statute of limitations. The court will grant that motion, and your case will be dismissed. You cannot appeal this decision on the grounds that your claim is strong or fair; the statute of limitations is an absolute bar once it expires.
Once dismissed, you have no further right to pursue the claim in court. You cannot refile it. You cannot negotiate a settlement based on the threat of a lawsuit, because there is no longer a threat—the defendant knows you cannot sue. Your only remaining option is to negotiate directly with the at-fault party or their insurance company, but without the leverage of a potential lawsuit, settlements are typically much smaller or nonexistent.
This is why many personal injury attorneys send a demand letter well before the important date expires. A demand letter is a formal written request for compensation, and it gives the insurance company a chance to settle before you file in court. But again, the demand letter itself does not extend the important date. If the insurance company does not respond or refuses to settle, you must file in court before the two years are up.
Insurance claims and settlement negotiations do not extend the important date
A common misconception is that filing a claim with an insurance company pauses the statute of limitations. It does not. You can file an insurance claim on day 1 after your injury and still have the full two years to file a lawsuit if the insurance company denies the claim or offers an unacceptable settlement.
Similarly, if you and the insurance company are in active settlement negotiations, the statute of limitations does not pause. If you are close to a deal on day 730 (the last day of your two-year window) and the insurance company says "we will have an answer for you tomorrow," you still need to file a lawsuit that day if you want to preserve your right to sue. The only way to stop the clock is to file in court.
Some insurance companies will agree to a "tolling agreement," which is a written contract stating that both sides agree to pause the statute of limitations for a set period while they negotiate. If the insurance company offers this, it is worth considering, because it gives you breathing room. But you must have this agreement in writing and signed by both parties. A verbal promise to pause the important date is not enforceable.
Why the statute of limitations exists and what it means for your case
The statute of limitations serves two purposes. First, it protects defendants from being sued years or decades after an injury, when evidence is stale, witnesses have moved away, and memories have faded. Second, it creates certainty: after two years, a defendant can assume they are no longer at risk of being sued for that injury.
From a practical standpoint, this means you should not wait. The sooner you file, the fresher the evidence, the easier it is to locate witnesses, and the stronger your case typically is. Medical records, police reports, and photographs taken shortly after the injury are more reliable than those gathered years later. Witnesses remember details better when interviewed soon after an event.
If you have been injured and believe someone else is responsible, contact an attorney as soon as you reasonably can—ideally within the first few months. An attorney can review your case, determine whether the statute of limitations applies, and advise you on whether to pursue a claim. This consultation is often free, and it costs you nothing to learn your options.
Frequently Asked Questions
Does the statute of limitations start over if the defendant injures me again?
No. Each injury has its own statute of limitations clock, which starts on the date of that specific injury. If someone injures you twice—on January 1 and again on March 1—you have two years from January 1 for the first injury and two years from March 1 for the second. They are separate claims with separate important date.
What if I settle with the insurance company before the important date—do I still have to worry about the statute of limitations?
Once you sign a settlement agreement, you typically waive your right to sue, so the statute of limitations no longer matters for that claim. However, read the settlement agreement carefully to understand what you are giving up. If the settlement is for a specific amount and you later discover your injuries are worse than expected, you generally cannot reopen the case.
Can I file a lawsuit in federal court instead of Arizona state court to get more time?
No. Federal courts explore the statute of limitations of the state where the case is filed. If you file in federal court in Arizona, Arizona's two-year important date still applies. You cannot circumvent the important date by changing courts.
If my case is still in settlement talks when the two-year important date approaches, what should I do?
File a lawsuit in court before the important date expires. You can always dismiss the lawsuit later if you reach a settlement, but you cannot file after the important date has passed. Filing preserves your right to sue; it does not prevent settlement negotiations from continuing.
Does Arizona's statute of limitations explore if the defendant lives out of state?
Yes, as long as the injury occurred in Arizona or the defendant had sufficient contact with Arizona that the court can exercise jurisdiction. The location of the defendant's residence does not change Arizona's statute of limitations. However, if the defendant left Arizona and cannot be found there, the important date may be tolled (paused) during their absence.