WC-337 form (Michigan): the workers' comp owner exemption
Notice of Exclusion. Who can file it, where to get it, how to file, the fee, when it takes effect, and how often it renews — from Michigan Workers’ Disability Compensation Agency.
WC-337 filing snapshot
FormWC-337 — Notice of Exclusion
Issuing bodyMichigan Workers’ Disability Compensation Agency
Filing methodFile the current WC-337 with the Agency under its owner-only exclusion process.
FeeNo separate filing fee verified
Common mistakeWC-337 is not a generic owner certificate. Mich. Admin. Code R 408.41b makes the exclusion effective upon Agency receipt, but the Agency form also states it is not valid unless stamped as on file — so keep the stamped copy. Businesses with employees generally handle qualifying owner exclusions through the policy instead.
When it takes effectUpon receipt by the Michigan Workers’ Disability Compensation Agency (Mich. Admin. Code R 408.41b); the filed, stamped form is the proof.
RenewalNo fixed interval stated on the current WC-337 landing page; refile when the exclusion facts or Agency requirements change.
Watch out forWC-337 is an owner-only exclusion route and is not valid unless stamped on file by the Agency.
Get the WC-337 from Michigan Workers’ Disability Compensation Agency
Which Michigan owners can use the WC-337
Sole proprietorThe sole proprietor is self-employed and is not an employee of the sole proprietorship. The business generally needs a policy when it has one full-time employee or three part-time employees; a no-employee sole proprietor does not use WC-337 simply to prove independent-contractor status.
LLC memberA member who is also a manager is treated as an employee. An LLC with no more than 10 members may exclude a member-manager who owns at least 10% and meets the statutory consent requirements. If all employees are qualifying member-managers, the LLC may use WC-337; otherwise the exclusion is handled through the insurer while the business maintains employee coverage.
PartnerA partner is treated as an employee of the partnership. A named partner may be excluded by policy endorsement, and a partnership whose only employees are partners may use WC-337. The exclusion does not remove the business's obligation to insure non-excluded employees.
Corporate officerA corporate officer is treated as an employee. In a corporation with no more than 10 stockholders, an officer-stockholder owning at least 10% may elect individual exclusion with the corporation's consent. If every employee is a qualifying officer-owner, WC-337 can serve as the Agency-filed exclusion record.
Employee threshold: Michigan generally requires coverage when a private employer regularly employs at least one person 35 hours or more per week for 13 weeks in the preceding 52 weeks, or regularly employs three or more people at one time. Agricultural employers use a separate three-employee / 35-hour / 13-consecutive-week trigger. In construction: The cited Michigan materials do not publish a separate construction head-count trigger. For corporations, LLCs, and partnerships, the Agency's 2026 employer publication says a workers' compensation policy is required if the business has any employees or uses subcontractors; the WC-337 owner-only exclusion path is available only when all employees can be excluded and no subcontractors are used.
Read the full context in the Michigan workers' comp exemption guide, or run the eligibility screener to check your entity type first.
WC-337 form (Michigan): frequently asked questions
- Where do I get the WC-337 form in Michigan?
- The WC-337 (Notice of Exclusion) is issued by Michigan Workers’ Disability Compensation Agency. File the current WC-337 with the Agency under its owner-only exclusion process. Use the official link on this page rather than a third-party copy, which may be out of date.
- Is there a fee to file the WC-337 in Michigan?
- No separate filing fee has been verified for this form.
- How often does the WC-337 exemption renew in Michigan?
- No fixed interval stated on the current WC-337 landing page; refile when the exclusion facts or Agency requirements change. Watch out: WC-337 is an owner-only exclusion route and is not valid unless stamped on file by the Agency.
Where this comes from
The WC-337 entry is anchored to Michigan Workers’ Disability Compensation Agency — the state agency that issues and processes the form — not a generalized summary. Source-checked 2026-09-10.