Reporting a Work Injury in Arizona: The Deadlines That Protect a Claim

Published September 16, 2026

After a workplace injury in Arizona, two separate steps stand between the injury and an active workers' compensation claim: telling the employer, and filing with the state. They are not the same thing, and each has its own timing.

Step one: notice to the employer

Arizona law calls for an injured worker to report the accident to the employer promptly. Beyond the legal requirement, early reporting serves the record: a report made the day of the injury ties the injury to the workplace clearly, while a delayed report can leave gaps that make the connection harder to document later. Once notified, the employer has its own obligation to report the injury onward to its insurance carrier and the Industrial Commission.

Step two: filing the claim — the one-year deadline

The claim itself is filed with the Industrial Commission of Arizona (ICA), and this is where the firm statutory deadline lives. Under A.R.S. § 23-1061, a claim for compensation must be filed in writing within one year after the injury occurred or the right to compensation accrued. The statute treats this deadline seriously — with narrow exceptions, a claim that is not timely filed is one the Commission lacks jurisdiction to consider.

In practice, the claim is often started through the worker's and physician's report completed at the first medical visit, or filed directly with the ICA. Filing well inside the window is simpler than testing its edges, particularly for injuries that developed gradually, where the start date of the one-year period can itself become a disputed question.

After filing: the carrier's response

Once a claim is filed and the carrier is notified, the carrier issues a notice of claim status accepting or denying the claim — the statute contemplates that response within twenty-one days. A denial is not necessarily the end of a claim; Arizona law provides a hearing process for disputed claims, with its own deadlines that make prompt attention to any denial notice important.

Why the sequence matters

Each step protects the next one: prompt notice to the employer creates the record, timely ICA filing preserves the claim itself, and attention to the carrier's response preserves the right to contest a denial. Most of the difficult workers' compensation situations trace back to a missed step early in this chain — and most are avoidable simply by acting early at each stage.

This article is general legal information about Arizona's workers' compensation process, not legal advice. Specific claims turn on their facts, and the Industrial Commission of Arizona publishes official forms and guidance for injured workers.