After a car accident, medical care, vehicle repairs, insurance calls, and missed work can take over your schedule. It is easy to assume that a legal claim can wait. Arizona law, however, places deadlines on personal injury and property damage actions.
Direct answer: In most Arizona car accident cases, an injured person has two years from the date the claim accrues to file a lawsuit. A.R.S. § 12-542 applies a two-year limitation period to personal injury, property damage, and wrongful death actions. Different rules may apply when a government entity is involved, the injured person is a minor, or uninsured or underinsured motorist coverage is part of the claim.
Because the correct deadline depends on the facts, accident victims should not wait until the end of the two-year period to seek legal guidance.
How Long Do You Have to File a Car Accident Claim in Arizona?
For most injury claims arising from a motor vehicle accident, Arizona’s general deadline is two years. The same statute also applies to claims for damage to a vehicle or other personal property. When injuries result in death, a wrongful death action is generally treated as accruing on the date of death.
The two-year period applies to filing a lawsuit, not merely opening an insurance claim or beginning settlement negotiations. Reporting the crash to an insurer does not guarantee that the legal deadline is protected. If negotiations continue while the deadline expires, the responsible party may ask the court to dismiss a later lawsuit.
Two years may sound like enough time, but a claim often requires medical records, accident reports, witness interviews, photographs, vehicle data, and expert review. Starting early gives a legal team more time to preserve evidence and evaluate the injuries.
When Does the Two-Year Period Begin?
In many car accident cases, the safest working assumption is that the deadline begins on the date of the crash. Arizona may apply a discovery rule in limited circumstances when a person did not know, and could not reasonably have known, that an injury occurred or what caused it.
The Arizona Supreme Court has explained that a claim may accrue when a person knows, or through reasonable diligence should know, the facts underlying the claim. A person does not necessarily need to know every fact before the filing period begins.
Delayed pain or a later diagnosis does not automatically create a new two-year period. An insurer may argue that the injured person knew enough to investigate the claim on the accident date. Do not rely on the discovery rule without advice from an Arizona personal injury lawyer.
Which Arizona Accident Deadlines May Be Different?
Several situations can change the usual timeline.
Claims Against a Government Entity
A crash may involve a city vehicle, public school employee, police vehicle, government employee, or dangerous public roadway. The injured person may need to serve a formal notice of claim within 180 days after the claim accrues. The notice must contain enough information to explain the basis of the claim, a specific settlement amount, and facts supporting that amount.
A lawsuit against a public entity or public employee generally must be brought within one year after accrual. The 180-day notice requirement and one-year lawsuit period are separate deadlines that generally run from the date the claim accrues.
The notice must also be delivered to the person authorized to accept service. Sending it to the wrong department, omitting required information, or missing the deadline can jeopardize the case.
Claims Involving an Injured Child
Arizona law may pause the ordinary limitations period while an injured person is under 18. The person generally receives the same filing period after the disability ends that another claimant would receive.
Government claims involving minors have separate statutory provisions. A.R.S. § 12-821.01 states that a minor may file a notice of claim within 180 days after the disability ceases. Because public entity rules are strict and fact-specific, a parent or guardian should still seek legal advice promptly instead of assuming the claim can wait.
Claims Involving an Unsound Mind
Arizona law may toll the limitations period when a person is of unsound mind at the time the claim accrues. This may be relevant when a severe brain injury or another condition prevents a person from understanding or managing legal rights.
Not every cognitive or medical limitation qualifies. These cases require a careful review of the medical evidence and the person’s functional capacity.
Uninsured and Underinsured Motorist Claims
Uninsured motorist and underinsured motorist benefits involve deadlines separate from a claim against the at-fault driver. A.R.S. § 12-555 contains written notice requirements that may depend on the accident date or when the claimant learned that the other driver lacked sufficient insurance.
The statute may also require the insured person to request arbitration or file a lawsuit within three years after giving written notice if the claim has not been resolved. Underinsured motorist claims may require timely action against the at-fault driver or that driver’s insurer.
Insurance policies may impose additional requirements for accident reporting, cooperation, medical documentation, or other actions. A Mesa car accident attorney can review the policy and identify the deadlines that apply.
What Happens If the Filing Deadline Expires?
If a lawsuit is filed after the applicable limitations period, the defendant can usually seek dismissal. The court may never consider who caused the crash, how serious the injuries are, or how much compensation might have been available.
Waiting can also weaken a claim before the legal deadline arrives. Surveillance footage may be erased, vehicles may be repaired or sold, witnesses may become difficult to locate, and memories may fade. Early investigation can help preserve evidence while it is still available.
How Can You Protect Your Claim After an Accident?
Taking practical steps after a crash can support your health and your legal claim:
- Report the accident to law enforcement when required or appropriate.
- Seek medical attention promptly, even when symptoms initially appear manageable.
- Photograph vehicle damage, injuries, road conditions, traffic signals, and the accident scene.
- Collect names and contact information from witnesses.
- Notify your insurance company as required by your policy.
- Keep medical bills, repair estimates, wage records, and insurance correspondence.
- Avoid giving a recorded statement to the other driver’s insurer before understanding your rights.
- Do not accept a settlement until your injuries and future needs are reasonably clear.
- Write down the accident date and all insurance or government notice dates.
These actions do not replace legal advice, but they can help prevent avoidable disputes about evidence, medical treatment, and timing.
How Can a Car Accident Attorney Help?
A personal injury lawyer can identify responsible parties, calculate applicable deadlines, preserve evidence, review insurance coverage, and handle communications with insurers. This is especially important when a collision involves a government agency, commercial vehicle, serious injury, wrongful death, or disputed insurance coverage.
An attorney can also evaluate damages such as medical expenses, lost income, reduced earning capacity, property loss, pain, and future care. Early legal guidance does not mean that every case will go to trial. It protects the ability to negotiate or file a lawsuit if a fair settlement is not offered.
Speak With a Mesa Car Accident Attorney
Tobler Law, P.C. represents injured people and families in Mesa, Phoenix, Gilbert, Chandler, Tempe, and communities throughout Arizona. The firm handles personal injury, motor vehicle accident, wrongful death, and medical malpractice matters.
If you have questions about Arizona’s car accident statute of limitations, Tobler Law, P.C. can review the facts and explain which deadlines may apply. The firm offers free consultations, no fee unless there is a recovery, home and hospital visits, Spanish-speaking staff, and access to an attorney 24 hours a day.
Call 480-898-9700 or contact Tobler Law, P.C. online to discuss your accident. You can also learn more about the firm’s motor vehicle accident and wrongful death services.
This article provides general information about Arizona law and is not legal advice. Legal deadlines depend on the specific facts of each case. Reading this article does not create an attorney-client relationship.


