Having only part-time or seasonal staff does not keep you out of Wisconsin's workers compensation rules. Part-time, seasonal, and temporary workers count toward the three-employee threshold exactly like full-timers, and there is no minimum number of hours. On top of that, the 500-dollar wage rule can require coverage even with one or two part-timers, so a small seasonal crew can trip the mandate faster than owners expect.
Who this is for: Wisconsin owners who run on part-timers, seasonal help, or a handful of temporary workers and assume the rules do not reach them.
The short version
- Part-time and seasonal workers count toward the three, with no hours floor.
- Three part-timers put you over the three-employee threshold.
- Even one or two part-timers can trigger coverage through the 500-dollar wage rule.
- There is no seasonal exemption in Wisconsin.
- Coverage from the wage rule starts the tenth day of the next quarter.
How part-timers add up
The mistake is assuming part-time hours mean partial counting. They do not. Each person counts as one, and wages are wages.
| Your staffing | Coverage required? | Why |
|---|---|---|
| Three part-timers, any hours | Yes | Three people meet the headcount trigger |
| Two part-timers under 500 dollars a quarter | Not yet | Below both triggers |
| Two part-timers paid 500 dollars or more in a quarter | Yes | The wage trigger is met |
| One seasonal worker for a busy month | Maybe | Depends on wages paid in the quarter |
| A full-timer plus two part-timers | Yes | Three people who count |
No seasonal loophole
Some owners believe a short season or a temp agency arrangement means no coverage. Wisconsin does not have a seasonal or temporary exception; a seasonal worker is an employee and counts. If you bring on a spring or holiday crew, treat them as counting from day one and plan to have coverage in place before you are over the line, not after someone gets hurt.
What comp covers for a part-timer
Coverage does not depend on hours. A part-timer hurt on the job gets the same medical care and partial wage replacement as a full-timer, and in exchange generally cannot sue you over the injury. What comp does not do is pay for off-the-job injuries or cover damage to customers or property; those are separate policies. So the value of comp for a part-time crew is the same protection against a workplace injury turning into an out-of-pocket loss.
A Green Bay example
Illustrative, not a quote. A Green Bay gift shop runs with the owner and two part-time clerks most of the year, which is under three employees. For the holidays it hires a third part-time clerk, and the shop crosses the three-employee line the day that clerk starts, so coverage is required right away, not after the season. Even before that hire, the owner checks the wage rule, because three clerks over a busy quarter easily clear 500 dollars. We rate the retail payroll on the right, low-hazard class so the seasonal bump does not cost more than it should. See our workers comp for retail stores page.
Real questions Wisconsin owners ask
Do part-time employees count toward workers comp in Wisconsin?
Yes, fully. Part-time and seasonal workers count toward the three-employee threshold just like full-timers, with no minimum number of hours.
I only have part-time staff. Do I still need coverage?
Very possibly. Three part-timers meet the headcount trigger, and even one or two can trigger coverage through the 500-dollar quarterly wage rule.
Is there a seasonal exemption in Wisconsin?
No. Wisconsin has no seasonal or temporary exception. A seasonal worker is an employee and counts toward the threshold from day one.
How does the 500 dollar rule affect part-timers?
If you have fewer than three workers but pay them 500 dollars or more in gross wages in a calendar quarter, coverage becomes required on the tenth day of the next quarter.
Do temporary or holiday workers count?
Yes. Temporary and holiday workers count the same as any other employee. Hiring a third for the holidays can put you over the line the day they start.
Does a part-timer get the same benefits if hurt?
Yes. Comp benefits do not depend on hours. A part-timer injured on the job gets medical care and partial wage replacement like a full-time employee.
What if my part-timer works only a few hours a week?
They still count as one person toward the three. Wisconsin does not scale the count by hours, so a few-hours-a-week clerk counts the same as a full-timer.
Why Wisconsin owners choose Morrow
- We shop the right market for you. Wisconsin has no state fund, so you buy from private insurers competing for your business, and because every carrier starts from the same state-set manual rates filed by the Wisconsin Compensation Rating Bureau, we compete for you on your work categories, dividends, and safety credits rather than a lower base rate, with the state's guaranteed-issue pool as a backstop if you are hard to place.
- 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 Wisconsin guides
Every Wisconsin 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 Wisconsin (start here)
- Workers comp: the owner's overview
- 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?
- 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
- What workers comp does not cover
- Wisconsin retail workers comp
This guide is general information, not legal advice. Wisconsin rules and penalty amounts can change, so verify current requirements with the Wisconsin Department of Workforce Development, Worker's Compensation Division or a licensed advisor before you rely on them. Last updated: July 2026.