As a Missouri sole proprietor, you are not required to cover yourself and you do not count toward the employee threshold. Whether you must carry a policy at all depends on your workers: for most businesses you need coverage once you have five or more employees, and in construction you need it from the very first employee. You yourself stay outside that count.
Who this is for: Missouri sole proprietors deciding whether they must carry workers comp for their workers, and whether to cover themselves.
The short version
- You, the sole proprietor, do not count toward the threshold and are not covered by default.
- You need a policy for your workers at five or more employees, or one or more in construction.
- You can choose to cover yourself, and in Missouri that is done simply by buying and accepting a policy.
- There is no rejection form for you, because you are out by default, not in.
- As the owner, you are personally exposed to the penalty and to lawsuits if you should have coverage and do not.
Who counts, and who does not
The rule for a sole proprietor is the mirror image of the rule for a corporate officer. You are left out unless you take a step to opt in.
| Person | Counts toward the threshold? | Covered by default? |
|---|---|---|
| You, the sole proprietor | No | No, unless you elect in by buying a policy |
| Your employees | Yes | Yes, once you hit the threshold |
| Paid family member working in the business | Yes | Yes, once you hit the threshold, outside of farming |
| A genuine independent contractor | No | No, if they truly pass the control test |
Covering yourself is optional, and done by buying a policy
If you want your own injuries covered, Missouri lets you elect into the system, and the way you do it is refreshingly simple: you buy and accept a valid workers comp policy or endorsement that includes you. There is no special rejection or election form to file, because the default is that you are already out. Your election lasts as long as the policy is in force, and you step back out by canceling or not renewing. Covering yourself can be worth it, because a sole proprietor's own medical bills after a job injury are otherwise entirely out of pocket.
Construction changes the math
If you do construction work and you employ anyone, the five-employee rule does not apply to you. You need a policy for that worker from day one, and you will likely need to show proof of coverage, or file an exemption affidavit, to get a local contractor license. You still do not count yourself, but the moment you have one construction employee, coverage is mandatory.
A St. Louis example
Illustrative, not a quote. A St. Louis house cleaner runs her business as a sole proprietor and works alone. Missouri does not require her to carry workers comp, because she has no employees and is not in construction, and she does not count herself. When she lands a contract with a property manager who insists on proof of coverage, she buys a policy and elects to cover herself, which both satisfies the contract and protects her own income if she is hurt on a job. As she adds cleaners and approaches five, she will need coverage for the crew regardless. See our workers comp for cleaning businesses page.
Real questions Missouri owners ask
Do I need workers comp as a Missouri sole proprietor?
Not for yourself, and not at all if you have no employees and are not in construction. You need a policy for your workers once you reach five employees, or from the first employee if you do construction work.
Do I count toward the five-employee threshold as the owner?
No. A sole proprietor does not count toward the threshold and is not covered by default. Only your employees count, so you could have four workers and still be under the limit.
Can I cover myself as a Missouri sole proprietor?
Yes. You elect in simply by buying and accepting a valid workers comp policy or endorsement that includes you. There is no separate election form, and you step back out by canceling the policy.
Do I need workers comp if I work alone in Missouri?
The state does not require it if you have no employees and are not in construction. But a client, landlord, or general contractor may require you to carry a policy by contract before they hire you.
Does a sole proprietor in construction need coverage?
Yes, if you have even one employee, because construction drops the trigger to a single worker. You will also likely need to show proof of coverage or an exemption affidavit for a local contractor license.
Am I personally liable if I skip required coverage?
Yes. As a sole proprietor you are personally the employer, so the civil penalty and any lawsuit from an injured worker fall on you personally. There is no company to stand between you and the exposure.
How do my paid family members affect the count?
Paid family members working in your business generally count toward the threshold, the same as any other worker, unless the work is farm labor. So bringing on relatives can push you to the five-employee trigger.
Why Missouri owners choose Morrow
- We shop the right market for you. In Missouri you buy workers' comp on the open, competitive market from any private insurer licensed in the state, because Missouri has no state fund after Missouri Employers Mutual became a fully private company in 2025, and if no private carrier will take you, the insurer-of-last-resort pool run by NCCI and serviced by Travelers is the guaranteed backstop, so we can shop your rate freely and still have a fallback for hard-to-place work.
- 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 Missouri guides
Every Missouri 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 Missouri (start here)
- Workers comp: the owner's overview
- I own an LLC: 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)
- Do sole proprietors need workers comp?
- Hiring your first employee: what changes
- Missouri cleaning workers comp
This guide is general information, not legal advice. Missouri rules and penalty amounts can change, so verify current requirements with the Missouri Division of Workers' Compensation or a licensed advisor before you rely on them. Last updated: July 2026.