In Arizona you must carry workers compensation once you have even one regularly employed worker (A.R.S. section 23-961). There is no headcount minimum and no payroll minimum, so unlike states that wait until three or five employees, Arizona reaches you at the very first hire.
Who this is for: Arizona owners trying to figure out whether the law already reaches them, and what the first employee changes.
The short version
- The trigger is one employee. One regularly employed worker makes coverage mandatory (A.R.S. section 23-902). There is no threshold headcount to reach first.
- Part-time and seasonal count. There is no minimum weekly hours and no waiting period, so a regular part-timer or seasonal hire triggers the duty.
- Owners may or may not be employees. An LLC member or officer under 50 percent is a covered worker, while a 50 percent owner, sole proprietor, or partner is out unless they elect in.
- A business with no employees may owe nothing. A solo owner with no covered workers can be outside the duty, but that changes the moment a statutory employee exists.
- Coverage attaches on day one. Once you are subject, a new hire is covered from their first day; there is no grace period.
How Arizona decides who counts
The question is not how many people you have, but whether anyone is a regularly employed worker under the law. Here is how the common cases land.
| Worker or owner | Triggers the coverage duty? | Notes |
|---|---|---|
| Full-time employee | Yes | Covered from day one; no headcount minimum |
| Regular part-time or weekend staff | Yes | No hours minimum and no waiting period |
| Seasonal staff you rehire each year | Yes | Employment for a portion of the year still counts |
| Farm or agricultural worker | Yes | Arizona has no agricultural exemption |
| A true one-off casual helper outside your business | No | Casual work outside your usual trade is not covered |
| A live-in domestic servant | No | Domestic servants are excepted from the mandate |
| LLC member or officer under 50 percent | Yes | Treated as a covered employee by default |
What "regularly employed" means
Arizona ties the duty to workers who are regularly employed in the business, and the law spells out that this includes employment whether it runs throughout the year or only for a portion of the year. So a seasonal or part-time worker who is part of how you normally run counts, and you cannot dodge the rule by pointing to a slow stretch. The only narrow exclusions are a domestic servant in a private home and casual labor that is both occasional and outside your usual trade or business; both conditions have to be true for the casual exclusion to apply.
No employees yet, but exposed
If you run solo with no covered workers, Arizona may not require a policy yet. That does not make an injury free. A sole proprietor or partner who is hurt while uninsured has no comp to draw on, and a client or general contractor may still demand proof of coverage before you can work. The moment you add a statutory employee, whether a W-2 hire or a minority officer, the duty attaches from that person's first day, so it pays to line coverage up before the start date rather than after.
A Mesa example
Illustrative, not a quote. A Mesa coffee shop starts with just the owner, then hires one steady weekend barista. That single regular part-timer makes coverage mandatory in Arizona, even though the shop has only one employee. The owner puts a policy in place before the barista's first shift, and when the barista slips on a wet floor, comp pays the medical bills and part of the lost wages instead of turning into a lawsuit. We make sure the shop's payroll is rated on the right kind of work so the price is fair. See our workers comp for restaurants and cafes page.
Real questions Arizona owners ask
Do I need workers comp for my Arizona business?
If you have any employees, yes. Arizona requires coverage at your first regularly employed worker under A.R.S. section 23-961, with no headcount or payroll minimum. A solo owner with no covered workers may be exempt.
How many employees trigger workers comp in Arizona?
One. There is no numeric threshold in Arizona; the duty attaches at the first regularly employed worker. This is stricter than states that wait until three or five employees.
Do part-time and seasonal workers count in Arizona?
Yes. Arizona counts regular part-time and seasonal workers the same as full-timers, with no minimum weekly hours and no waiting period, so even one regular part-timer triggers the requirement.
Are farm and agricultural workers exempt in Arizona?
No. Arizona has no agricultural exemption, so farm and ranch employees must be covered to the same extent as any other worker. This is a point where Arizona differs from many states.
I am a solo owner with no staff. Do I still need coverage?
Often not by state law, because there is no covered employee yet. Many solo owners still buy a policy because a client or general contractor requires proof of coverage, or to protect their own income.
When does a new hire become covered in Arizona?
Right away. Once your business is subject, an employee is covered from the first day of work. There is no waiting period, so put a policy in place before the person starts.
Are any workers excluded from the Arizona rule?
Only narrow ones: a domestic servant in a private home, and casual labor that is both occasional and outside your usual business. If either condition fails, the worker counts toward the duty.
Why Arizona owners choose Morrow
- We shop the right market for you. Arizona has no state fund, so you buy workers comp from private insurers on the open market, and we compare several to find your best rate. If your work is hard to place and no insurer will take you, a guaranteed state backstop (the NCCI-run assigned risk plan) will still cover you.
- We catch pricing mistakes. Your price depends heavily on the category your work falls into for pricing (the class code). Put people in the wrong category and you overpay for years. We review your payroll and classifications before you buy.
- Proof of coverage, fast. Need a certificate (proof of coverage) for a general contractor or a landlord before Monday? We turn those around the same business day for most carriers.
- We help lower the score that drives your price. Insurers give you a score based on your past claims that raises or lowers your cost (the experience modification rate). We review it each year, flag errors, and connect you with return-to-work and safety resources that bring it down.
- Real people when a claim happens. When someone gets hurt, we stay involved through the life of the claim, not just at renewal.
Related Arizona guides
Every Arizona business is set up a little differently. These companion guides answer the same question for other situations, plus the national explainers behind the terms used here.
- Business insurance in Arizona (start here)
- I own an LLC: do I need workers comp?
- I'm a sole proprietor: do I need workers comp?
- I own a corporation (C-corp or S-corp): do I need it?
- We're a partnership: do we need workers comp?
- We're a nonprofit: do we need workers comp?
- My workers are 1099: do I still need it?
- Only part-time or seasonal staff: do I need it?
- I only employ family: do I need workers comp?
- Remote or out-of-state staff: do I need coverage?
- What happens if I don't carry workers comp?
- How much does workers comp cost?
- How do I get workers comp (even if turned down)?
- What insurance do I need for a contractor license?
- Workers compensation insurance, explained
- What workers comp costs (national guide)
- Hiring your first employee: what changes
- Workers comp vs employers liability
- Arizona restaurant workers comp
This guide is general information, not legal advice. Arizona rules and penalty amounts can change, so verify current requirements with the Industrial Commission of Arizona or a licensed advisor before you rely on them. Last updated: July 2026.