If you have a claim against an Arizona city, county, state agency, public school, or government employee, you may need to act long before you file a lawsuit.
Arizona law generally requires a claimant to serve a Notice of Claim within 180 days after the claim accrues. A.R.S. § 12-821.01.
Missing that deadline—or making certain mistakes in the notice itself—can prevent a claimant from pursuing otherwise valid state-law claims.
Arizona courts require strict compliance with the statute. Actual notice of the incident is generally not enough, and substantial compliance does not necessarily save a defective notice.
What Is an Arizona Notice of Claim?
A Notice of Claim gives a public entity or public employee advance notice of a potential damages claim.
The law serves several purposes. It gives the government an opportunity to investigate the claim, evaluate potential liability, consider settlement before litigation, and plan for potential financial exposure.
A Notice of Claim is not the lawsuit itself. It is a procedural requirement that may be required before filing certain claims against a government entity or employee. The Arizona Supreme Court recently confirmed that A.R.S. § 12-821.01 does not create a cause of action. Instead, it establishes the procedure for giving notice of an existing claim.
The 180-Day Notice of Claim Deadline
A.R.S. § 12-821.01 generally requires a claimant to file the notice:
Within 180 days after the cause of action accrues.
A claim generally accrues when the injured person realizes that he or she has suffered an injury and knows, or reasonably should know, the cause or source of that injury.
This deadline can arrive much sooner than people expect.
It is also separate from Arizona’s general one-year statute of limitations for actions against public entities and employees under A.R.S. § 12-821.
In other words, waiting one year to consult an attorney may already be too late for a state-law damages claim.
What Must an Arizona Notice of Claim Contain?
A valid Notice of Claim generally must include three essential things:
- Facts sufficient to allow the public entity or employee to understand the basis of the claim;
- A specific amount for which the claim can be settled; and
- Facts supporting that settlement amount.
Those requirements come directly from A.R.S. § 12-821.01(A).
Each requirement matters.
The Notice Must Explain the Basis for Liability
The notice should include enough factual information for the government to understand what happened and why the claimant contends the public entity or employee is responsible.
The statute requires facts. It does not necessarily require a claimant to set out every legal theory that might later appear in a lawsuit.
In Yollin v. City of Glendale, the Arizona Court of Appeals explained that the statute requires facts rather than a complete legal analysis.
The Notice Must Include a Specific Settlement Amount
This is one of the most dangerous parts of Arizona’s Notice of Claim statute.
The claimant must identify a particular amount for which the claim can be settled.
Arizona courts have repeatedly rejected settlement demands that leave the amount uncertain.
In Deer Valley Unified School District No. 97 v. Houser, the Arizona Supreme Court rejected language such as “approximately,” “or more,” and “no less than” because those terms did not communicate one definite settlement amount.
More recently, the Court rejected an offer to settle for the greater of $1 million or applicable insurance limits because the amount depended on an unknown variable.
The rule is straightforward but unforgiving: the government must be able to determine the settlement amount.
Even a Typographical Error Can Be Fatal
The Arizona Supreme Court’s 2026 decision in Terborg v. Town of Payson illustrates how strict this requirement can be.
The claimant offered to settle for: “one hundred thousand dollars ($250,000).”
The written and numerical amounts clearly conflicted.
The Arizona Court of Appeals initially concluded that the words controlled the number and treated the offer as $100,000. But the Arizona Supreme Court reversed.
The Supreme Court held that the notice did not state the single, certain settlement amount required by A.R.S. § 12-821.01. The government had no duty to determine which figure the claimant intended or to ask the claimant to clarify the mistake.
The lesson is simple: proofread the settlement demand very carefully.
Facts Must Support the Settlement Amount
The claimant must also provide facts supporting the amount demanded.
That does not mean a claimant has to prove the entire damages case in the Notice of Claim.
In Backus v. State, the Arizona Supreme Court held that the notice satisfies this requirement when the claimant provides the factual foundation the claimant regards as adequate to allow the government to evaluate the amount. The notice does not require an exhaustive presentation of all damages evidence.
Still, the notice should explain the basis for the requested amount. Depending on the case, that could include:
- physical injuries;
- medical expenses;
- lost income;
- future treatment;
- disability;
- pain and suffering;
- property damage; or
- other damages caused by the incident.
Who Must Receive the Notice of Claim?
Serving the right document on the wrong person can create a serious problem.
A.R.S. § 12-821.01 requires filing with the person authorized to accept service under the Arizona Rules of Civil Procedure.
The correct recipient depends on the government entity involved. The research identifies, among other examples, the State Attorney General, the clerk of a county board of supervisors, and the appropriate municipal clerk for a city or town.
Claims against individual public employees may create an additional issue.
When pursuing a state-law damages claim against both a government entity and an individual employee, the claimant may need to serve the employee separately. Serving only the government employer may not preserve the claim against the employee.
What Happens After the Notice Is Filed?
The government generally has 60 days to respond to a properly filed Notice of Claim.
If the claim is not accepted or denied in writing before that period expires, the statute generally treats the claim as denied after 60 days.
The claimant can then determine whether to proceed with litigation, subject to the applicable statute of limitations and other requirements.
Does the Arizona Notice of Claim Statute Apply to Federal Civil Rights Claims?
Generally, A.R.S. § 12-821.01 does not govern federal claims brought under 42 U.S.C. § 1983.
That distinction matters in civil-rights cases.
A single lawsuit may contain both federal constitutional claims and Arizona state-law claims. The Notice of Claim statute may bar the state claims while leaving the federal § 1983 claims unaffected.
The research also notes that the statute generally does not apply to claims seeking declaratory or injunctive relief and has been held not to apply to nominal-damages claims.
What Happens If the Notice of Claim Is Defective?
The consequences can be severe.
Arizona courts generally require strict compliance with the statutory requirements. A claimant cannot ordinarily rely on the argument that the government already knew about the incident or suffered no prejudice.
A defective or untimely Notice of Claim can result in dismissal of the affected state-law claim. Research- Notice of Claim
That is why Notice of Claim issues should be evaluated early—often immediately after an incident involving an Arizona government agency or employee.
Arizona Civil Rights Claims Against Government Agencies
The Law Offices of David J. Don, PLLC represents clients in serious civil-rights and government-liability matters throughout Arizona.
Cases involving police misconduct, jail medical neglect, counties, cities, state agencies, and other public entities often involve unusual procedural deadlines that don’t apply in ordinary personal-injury litigation.
If you believe an Arizona government entity or employee violated your rights or caused serious injury, obtaining legal advice early can be critical.
