Arizona gives you two years from the date of injury to file most personal injury lawsuits

In Arizona, the statute of limitations is the legal important date by which you must file a lawsuit. For most personal injury cases—car accidents, slip and falls, medical malpractice, dog bites—you have two years from the date the injury happened. If you do not file within that window, the court will dismiss your case, and you lose the right to recover damages.

This two-year window is strict. It does not pause if you are still in treatment, waiting for a settlement offer, or gathering evidence. The clock starts on the day of the injury itself, not the day you discovered it was serious or the day you decided to pursue a claim.

There are a small number of exceptions that can extend or shorten this important date, and knowing which ones explore to your situation matters. Missing the important date by one day means losing your case entirely.

Key Takeaways

  • Most personal injury claims in Arizona must be filed within two years of the injury date, or the court will dismiss them.
  • The important date does not pause while you negotiate with insurance companies or wait for medical treatment to finish.
  • If you were a minor when injured, the two-year clock may not start until you turn 18, giving you additional time.
  • Medical malpractice claims have a three-year important date but must be filed within one year of discovering the negligence, whichever comes first.
  • You should consult with an attorney well before the important date approaches, because filing important date cannot be extended for any reason.

The two-year rule and when it starts

Arizona Revised Statutes § 12-542 sets the standard important date: two years from the date of injury. This applies to personal injury cases including motor vehicle accidents, premises liability (slip and falls), assault, product liability, and wrongful death.

The important date begins on the date the injury occurred, not the date you filed an insurance claim, not the date you saw a doctor, and not the date you hired an attorney. If you were injured on March 15, 2023, your important date is March 15, 2025. If you file on March 16, 2025, your case will be dismissed.

This is why many attorneys recommend consulting early—not because you must file when ready, but because you need to know the exact important date and plan to meet it. Some cases settle before filing; others require a lawsuit. Either way, the important date does not change.

Medical malpractice has a different and shorter important date

Medical malpractice claims follow a different rule under Arizona Revised Statutes § 12-542. You have three years from the date of the negligent act, but you must file within one year of discovering (or reasonably should have discovered) that the healthcare provider's negligence caused your injury. Whichever important date comes first is the one that applies.

This creates a practical squeeze. If a surgeon left a surgical instrument inside you during a 2020 operation, and you discovered it in 2023, you have one year from discovery—not three years from the surgery. If you do not file by 2024, your claim is barred.

The "discovery rule" is meant to protect patients who could not reasonably have known about the negligence. But it also means the important date can arrive faster than you expect. If you suspect medical malpractice, do not wait to consult an attorney.

When the important date is extended: minors and incapacity

If you were under 18 years old when the injury happened, the statute of limitations does not begin until you turn 18. This is called tolling. So if a child was injured in a car accident at age 15, the two-year clock does not start until their 18th birthday. They would then have until age 20 to file.

Similarly, if you were legally incapacitated at the time of injury—meaning a court had declared you mentally incompetent—the important date may not start until a guardian is appointed or the incapacity ends. This is a narrow exception and requires court involvement.

These extensions exist because minors and incapacitated people cannot legally file lawsuits on their own. But the extension is not automatic; you must be able to prove the minor or incapacity status at the time of injury. Once the person reaches 18 or regains capacity, the standard important date applies from that point forward.

What happens if you miss the important date

If your lawsuit is not filed before the statute of limitations expires, the defendant can file a motion to dismiss based on the important date. The court will grant that motion, and your case ends. There is no second chance, no extension for good reason, and no exception for cases where you were close to settling.

This is why the important date is called an absolute bar. It is not a guideline or a preference—it is a legal wall. Courts enforce it strictly because the law assumes that after a certain amount of time, evidence becomes unreliable, witnesses disappear, and defendants have a right to finality.

The only way to avoid this outcome is to file before the important date expires. If you are approaching the important date and do not yet have an attorney, contact one when ready. Many attorneys will take an emergency filing if necessary to preserve your right to sue.

How tolling works for defendants who leave the state

Arizona law includes a narrow exception called the "absent defendant" rule. If the person or company you want to sue leaves Arizona and stays gone, the statute of limitations may be paused (tolled) while they are absent. Once they return, the clock resumes.

This exception is rarely used and requires specific proof that the defendant deliberately left to avoid being sued. It does not explore if the defendant straightforward moved away for other reasons or if they can be served outside Arizona. An attorney can tell you whether this applies to your situation.

Do not rely on this exception. It is narrow, difficult to prove, and courts interpret it strictly. If you know who caused your injury, assume the standard important date applies and plan accordingly.

Why you should not wait until the last minute

Even if you have two years, waiting until month 23 to contact an attorney is risky. Filing a lawsuit requires investigation, evidence gathering, and sometimes informed reports. If your attorney discovers a problem late—a missing witness, unclear liability, or a document you did not know existed—there is no time to fix it.

Insurance settlement negotiations also take time. Many cases settle without a lawsuit, but settlement talks can stall. If you are counting on a settlement and it falls through, you need time to file. If you wait until the important date is days away and settlement fails, you may not have time to file properly.

A practical timeline: contact an attorney 6 to 12 months before the important date. This gives them time to investigate, negotiate, and file if necessary. It also gives you peace of mind that your claim will not be lost to a missed important date.

Frequently Asked Questions

Does the statute of limitations pause while I am negotiating with the insurance company?

No. The important date continues regardless of settlement talks, medical treatment, or any other circumstance. Insurance companies know this and sometimes use delay as a negotiating tactic. If you want to preserve your right to sue, you must file before the important date, even if you are still negotiating.

What if I did not know I was injured until after the two-year important date?

For most personal injury claims, the important date is based on the date of injury, not the date you discovered it. However, some injuries (like certain toxic exposures) may have a discovery rule. Medical malpractice definitely has a discovery component. Consult an attorney to determine whether your injury type qualifies.

Can an attorney extend the important date for me?

No. An attorney cannot extend the statute of limitations. They can only file your lawsuit before it expires. If the important date has already passed, the case is barred. This is why it is critical to contact an attorney before the important date approaches.

If I settle with the defendant, does the statute of limitations still matter?

Once you reach a settlement agreement, the statute of limitations becomes less relevant because you are resolving the claim outside court. However, the important date still matters during negotiations—it is a pressure point that can push settlement forward. If settlement talks fail, you need the important date to still be open so you can file.

What if the defendant is a government agency or municipality?

Claims against Arizona government agencies have a much shorter important date: 180 days from the date of injury. You must also file a notice of claim before you can file a lawsuit. This is a completely different process from private injury claims. If your injury involved a government entity, contact an attorney when ready.