Michigan generally requires workers' compensation insurance if you have one employee working 35+ hours per week for 13+ weeks, or three or more employees at any time. The threshold is lower than many small business owners assume, and the consequences of non-compliance go beyond fines — an injured worker could sue the business directly rather than through the workers' comp system.
Workers' compensation requirements catch some small business owners off guard, particularly those who assume the requirement only applies to larger companies or specific industries. Michigan's actual rules are broader than that assumption.
The general Michigan requirement
Michigan generally requires employers to carry workers' compensation insurance if they regularly employ at least one employee for 35 or more hours per week for 13 or more weeks per calendar year, or three or more employees at the same time, regardless of hours worked. There are some specific exceptions and nuances depending on business structure and industry, but the practical takeaway is that the threshold is lower than many small business owners assume — having even one regular employee can trigger the requirement.
What workers' compensation actually covers
Workers' compensation provides coverage for employees who are injured or become ill as a result of their job — covering medical expenses and a portion of lost wages during recovery. In exchange for this coverage, employees generally give up the right to sue their employer directly for a workplace injury, which is part of why the system exists in roughly this form across most states.
Why this matters even for businesses that feel "low risk"
It's a common assumption that workers' comp is mainly relevant for physically demanding or dangerous jobs — construction, manufacturing, and similar fields. In reality, injuries happen in office environments too: repetitive strain injuries, slips and falls, and other incidents aren't limited to physically intensive work. The requirement applies based on employee count and hours, not a subjective assessment of how risky the work feels.
What happens if you're required to carry it and don't
Failing to carry required workers' compensation coverage in Michigan can expose a business owner to significant penalties, and critically, removes the protection workers' comp normally provides — meaning an injured employee could potentially pursue a direct lawsuit against the business, without the structure workers' comp is designed to provide for both sides.
Independent contractors vs. employees
Whether someone is genuinely an independent contractor or actually an employee (regardless of how they're labeled) affects workers' comp obligations, and misclassification is a real risk area. This determination involves specific legal factors beyond just what a contract says, and it's worth confirming rather than assuming a worker's classification is correct just because that's how they were initially set up.
The conversation worth having
If you have any regular employees, even part-time, it's worth a direct conversation about whether your business meets Michigan's workers' compensation threshold — rather than assuming your business is too small for the requirement to apply.
What if you're not sure whether someone is an employee or contractor
Given how much rides on this classification, it's worth getting a clear answer rather than guessing, particularly for businesses that rely heavily on contractor relationships. Misclassification can affect more than just workers' comp — it touches tax obligations and other employment law areas too.
The two conditions that trigger the requirement
Michigan's workers' compensation requirement is triggered by either of two conditions: having at least one employee who regularly works 35 or more hours per week for 13 or more consecutive weeks in a calendar year, or having three or more employees at the same time regardless of hours. Many small businesses that think of themselves as "too small" actually meet the second condition as soon as they have three part-time employees on payroll simultaneously.
What workers' compensation covers in practice
When an employee is injured on the job, workers' comp covers their medical treatment and a portion of their lost wages during recovery — typically two-thirds of their pre-injury wage, up to a state maximum. In exchange, the employee generally gives up the right to sue the employer directly for the injury. This mutual protection is the core logic of the system.
The specific risk of non-compliance
An employer who is required to carry workers' comp and doesn't is not just subject to state fines — they lose the protection that workers' comp normally provides. An injured employee who couldn't file a workers' comp claim because no policy exists can sue the employer directly in civil court, without the limitations that workers' comp normally imposes on claims. This is meaningfully worse than paying the workers' comp premium would have been.
Independent contractors vs. employees
Michigan, like most states, uses specific factors to determine whether someone is an employee or a genuine independent contractor — factors that go beyond what a contract says. These include degree of control over how work is done, whether the worker operates an independent business, and whether the work is central to the hiring company's core business. If you're relying heavily on workers classified as contractors, it's worth a specific legal review rather than an assumption that the classification is correct. See also other business coverage types and Michigan small business insurance for the broader picture.