In New Mexico, part-time and seasonal workers count toward the three-worker threshold just like full-time staff, so a crew of three part-timers triggers workers compensation even if none of them works full hours. There is no separate hours minimum and no seasonal exception in the Workers' Compensation Act. The flip side is that one or two part-timers, on their own, usually do not require coverage for a non-construction business, because the requirement starts at three workers.
Who this is for: New Mexico owners whose only staff are part-time, seasonal, temporary, or on call, and who want to know where they stand under the three-worker rule.
The short version
- Part-time and seasonal workers count toward the three, the same as full-timers.
- Three part-timers trigger coverage; one or two usually do not, unless you are a licensed contractor.
- Construction has no three-worker floor, so a single part-time worker can require coverage.
- Coverage is priced on payroll, so a few part-time hours cost only a little to insure.
- Truly casual work outside your trade can fall outside the Act.
How part-timers count
New Mexico counts a worker toward the three based on the working relationship, not the number of hours, so a two-day-a-week cashier, a summer-only helper, and an on-call worker all count. The requirement turns on reaching three workers, and part-timers get there just as fast as full-timers. The one narrow break is truly casual work: a job that is not part of your regular trade or business can fall outside the Act. A worker you procure to do part of your actual trade is not casual, even if the job is short.
| Worker | Counts toward the three? |
|---|---|
| Regular part-time employee | Yes |
| Seasonal or summer-only worker | Yes |
| On-call or as-needed worker | Yes, while employed |
| Truly casual job outside your trade or business | Generally outside the Act |
| Private household or domestic worker, farm labor | Carved out by statute |
The good news on price
Because New Mexico workers comp is priced on payroll, a small part-time crew costs far less to insure than a full-time one. The premium tracks the wages you actually pay, and a year-end payroll review trues it up, so you are not charged as if part-timers were full-time. If you overestimate hours you can get money back at that review. That makes covering part-time staff much cheaper than owners expect, and far cheaper than the penalties that come with going uninsured once you are over the threshold.
A Clovis example
Illustrative, not a quote. A Clovis retail shop runs with the owner and two part-time clerks. Counting the owner, that is three workers, so New Mexico requires a policy and both clerks must be covered. Because the premium is based on their modest payroll, the coverage is inexpensive, and the year-end payroll review keeps the price in line with the hours actually worked. See our workers comp for retail stores page.
Real questions New Mexico owners ask
Do I need workers comp for part-time employees in New Mexico?
Once part-timers put you at three or more workers, yes. Part-time and seasonal staff count toward the three the same as full-timers, so three part-timers trigger coverage.
Do one or two part-timers require coverage?
For most businesses, not yet. The requirement starts at three workers, so one or two part-timers usually do not trigger it. But a licensed construction business has no threshold and needs coverage from the first worker.
What about seasonal or summer-only workers?
They count too. New Mexico has no seasonal exception, so a summer-only or holiday-season worker counts toward the three like any other worker while employed.
Is there an hours-per-week floor below which someone does not count?
No. New Mexico counts a worker based on the working relationship, not a number of hours. A few hours a week still counts toward the three.
Is any short job outside the rules?
Truly casual work can be. A job that is not part of your regular trade or business may fall outside the Act, but a worker you hire to do part of your actual trade is not casual, even for a short job.
Will covering a few part-timers cost a lot?
Usually not. New Mexico prices comp on payroll, so a small part-time wage bill means a small premium, and a year-end payroll review trues it up to what you actually paid.
What is the penalty for not covering part-time staff once I am over three?
The same as for full-time staff: loss of the lawsuit shield, a state fund reimbursement with a penalty of 15 to 50 percent of the award, and a possible court order to stop operating until you comply.
Why New Mexico owners choose Morrow
- We shop the right market for you. In New Mexico you buy workers' comp from private insurers, and there is no state fund. Because each carrier prices the same job differently, shopping around really can change what you pay. If every carrier turns you down, a state-backed pool must still cover you, and larger employers can self-insure.
- 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 New Mexico guides
Every New Mexico 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 New Mexico (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
- New Mexico retail workers comp
This guide is general information, not legal advice. New Mexico rules and penalty amounts can change, so verify current requirements with the New Mexico Workers' Compensation Administration or a licensed advisor before you rely on them. Last updated: July 2026.