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If you were hurt in a Phoenix crash, fall, dog attack, or other incident, there is a hard deadline on your right to sue. Miss it, and the strongest case in the world becomes worthless. This page walks through the actual statute of limitations rules for Phoenix personal injury cases, including the traps that don’t show up on most attorney websites: the 180-day government notice, the tolling rule for kids, the separate wrongful death clock, and what changes if your accident happened across the New Mexico line.
Different facts trigger different deadlines. Treat this article as a map, then call us to confirm the one that applies to you: (602) 345-1818.
For most personal injury cases in Phoenix, you have 2 years from the date of the injury to file a lawsuit. That comes from A.R.S. § 12-542. It covers car crashes, rear-end collisions, motorcycle wrecks, slip and falls, and most negligence claims.
But “2 years” is only the headline. Several common situations carry shorter or different deadlines:
If any of those apply, keep reading. The wrong assumption here is the most expensive mistake an injured person can make.
A statute of limitations is the legal deadline to file a lawsuit. It is not a deadline to settle. It is not a deadline to talk to insurance. It is the date by which a complaint must be filed in court.
If you blow that date, the defendant files a motion to dismiss, the judge grants it, and the case is over. The merits do not matter. Liability does not matter. Your medical bills do not matter. The case is gone.
That is why this deadline drives every other strategic decision in the Phoenix personal injury process, from when to send a demand to when to break off settlement talks and file suit.
Under A.R.S. § 12-542, you have exactly 2 years from the date of the injury to file a personal injury lawsuit in Arizona. This is the rule for:
Two years sounds like a lot. It is not. Medical treatment for serious injuries often takes 12 to 18 months before you reach maximum medical improvement, which is when the real settlement value of the case becomes visible. That leaves a narrow window to negotiate before the filing deadline becomes a forcing function.
For more on the underlying rule, see our Arizona statute of limitations details.
The default rule is that the 2-year clock starts on the date of the accident. But Arizona courts apply a discovery rule in some cases: the clock can start when the injury is reasonably discovered, not when it was technically inflicted.
This matters most for latent injuries. A few examples:
The discovery rule is fact-specific. Courts look at when a reasonable person would have known both the injury and its likely cause. We don’t promise the clock will be extended in any specific case, because the analysis depends entirely on your medical records, what you told providers, and when. But if you have a delayed-onset injury and your two years are running out, talk to us before assuming you’re out of time.
This is the trap that catches the most people, and it is the one most Phoenix attorney websites bury.
If your claim is against a government entity, including:
then A.R.S. § 12-821.01 requires you to serve a formal notice of claim within 180 days of the cause of action accruing. That’s roughly six months, not two years.
The notice has specific content requirements. It must identify the claimants, describe the facts, state the legal theory, and demand a specific dollar amount with the facts supporting that number. A defective notice is treated as no notice at all.
If you miss the 180-day window, the lawsuit is barred. Period. Even if the underlying 2-year personal injury deadline hasn’t run yet.
Plain version: if a government vehicle or government employee was involved in your injury, the clock you care about is 180 days, not 2 years. Call an attorney immediately.
If the injured person is a minor (under 18), the statute of limitations is tolled until their 18th birthday under A.R.S. § 12-502. The 2-year clock then starts running, and they have until their 20th birthday to file.
A few practical points:
A wrongful death claim under A.R.S. § 12-542(2) has a 2-year deadline, but the clock runs from the date of death, not the date of the underlying injury.
This distinction matters when someone is gravely injured and lives for weeks, months, or even years before dying from the injuries. The personal injury claim and the wrongful death claim are legally separate, with separate clocks. A surviving spouse, child, or parent who waits to grieve before consulting an attorney usually still has time, but the sooner the wrongful death case is investigated, the better the evidence.
We handle cases on both sides of the state line. The deadlines in New Mexico are different in two ways that matter.
Personal injury: Under NMSA § 37-1-8, you have 3 years from the date of injury to file. That’s a full year longer than Arizona. Do not assume your Phoenix attorney will automatically know this, and do not assume the longer deadline saves you, because the other deadlines are shorter.
Government claims in New Mexico: Under the New Mexico Tort Claims Act, NMSA § 41-4-16, you must serve a written notice of claim within 90 days on the relevant government entity. That is half the Arizona window. If you were hit by an Albuquerque city vehicle or a state employee, this is the deadline that controls your case.
For broader context on how the two states compare, see how New Mexico handles fault.
Dog bites in Arizona are a known trap. Several statutes can apply, including A.R.S. § 11-1025 (statutory strict liability), A.R.S. § 12-541 (which carries a 1-year limitations period for certain causes of action), and A.R.S. § 12-542 (the general 2-year personal injury statute).
Because the filing deadline depends on which theory you’re proceeding under and how the facts are characterized, do not assume a single deadline applies to a dog-bite claim. Confirm with an attorney before relying on a date. We’ve seen valid claims lost because someone assumed they had two years and discovered, too late, that a different statute had already cut off part of the case.
“Filing a lawsuit” means submitting a complaint to the Maricopa County Superior Court (or the appropriate court) before the deadline. It does not mean:
Only the actual filed complaint stops the clock.
That is why waiting until the last few weeks before the deadline is dangerous. An attorney needs time to investigate, order records, identify all potential defendants (including non-driver defendants like employers or vehicle owners), name them correctly, and draft a complaint that holds up. If you walk in at month 23 with a complicated case, the attorney may not have time to do the work right, or may decline to take the case at all.
A realistic case timeline runs 12 to 24 months from start to resolution, and longer when litigation is required. Most settlements happen during or after demand-letter negotiations, which means the lawsuit deadline is the firm wall against which everything else is timed.
Here is what most people don’t realize: insurance adjusters know your deadlines better than you do. The slow-walked claim is a strategy, not an accident.
Common patterns we see:
In every one of those patterns, the adjuster’s clock is your clock. The day after the statute runs, your leverage drops to zero, and they know exactly when that day arrives.
Filing suit before the deadline preserves your leverage even if you’re still hoping to settle. Most personal injury cases that get filed still resolve before trial. The filing is what keeps the adjuster honest.
And once a case is filed, Arizona’s comparative negligence rule shapes how damages are calculated at trial. Arizona reduces your recovery by the percentage of fault assigned to you, but only if the case was filed in time. A 70%-fault plaintiff in a timely-filed Arizona case can still recover 30% of damages. A 0%-fault plaintiff in an untimely case recovers nothing.
No. Only filing a complaint in court stops the clock. Settlement negotiations, demand letters, and insurance claims do not extend the deadline by a single day. Adjusters who string out negotiations toward the deadline are not pausing it for you.
Arizona applies a discovery rule, which can start the clock when the injury is reasonably discovered rather than when it happened. This often comes up with concussions, herniated discs, and other latent injuries. Whether it applies to your case depends on the medical records and what a reasonable person would have known. Don’t assume it applies. Get the analysis done by an attorney before relying on a later start date.
Yes. Under A.R.S. § 12-821.01, claims against Arizona state or municipal entities require a notice of claim served within 180 days of when the cause of action accrued. The notice has strict content requirements. Even if your 2-year personal injury deadline hasn’t run, missing the 180-day notice ends the case. Call an attorney immediately if a government vehicle, employee, or property was involved.
For the child’s claim, the statute is tolled until the 18th birthday, and they then have 2 years to file. But waiting is rarely the right strategy: evidence fades, witnesses move, and medical causation becomes harder to prove. The parent’s separate claim for medical bills runs on the normal 2-year clock. If a government entity is involved, the 180-day notice rule may still apply to the underlying claim. Confirm with counsel.
A wrongful death claim under A.R.S. § 12-542(2) runs 2 years from the date of death, not the date of the original injury. That gives surviving family members a separate window from the underlying personal injury deadline. The sooner the investigation starts, the better, because key evidence (vehicles, scene conditions, witness recollections) is already fading.
The deadline is set by where the case is filed and the substantive law that governs. For a New Mexico crash, the New Mexico 3-year personal injury statute (NMSA § 37-1-8) typically controls, and a New Mexico government defendant triggers the 90-day notice under NMSA § 41-4-16. We handle cases on both sides of the line. Don’t try to figure out the choice-of-law analysis on your own. Call us.
The deadline that applies to your case depends on who you’re suing, who was injured, where the accident happened, and what kind of claim it is. There is no one-size answer, and the wrong assumption ends cases that should have been won.
Talk to us before the clock runs out: (602) 345-1818. Free case review. No attorney’s fees unless we recover (case costs and fee terms are set out in the written agreement). We serve clients across the Phoenix metro areas we serve and across the New Mexico line in Albuquerque and Santa Fe.
If there’s any chance your deadline is closer than you think, call today. Tomorrow is too late on the day after the statute runs.
By Jared J. Pehrson | Impact Legal Car Accident Attorneys
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