WI · Sole proprietor

Sole proprietor workers comp in Wisconsin

Wisconsin does not require sole proprietors to cover themselves. Owners can elect out by filing an exclusion form, lowering premium but giving up workers comp benefits if they are injured at work. Verified 2026-05-09.

Sole proprietor self-coverage Optional
Coverage threshold Employers with 3 or more employees, or 1 or more employees if paying $500 or more in wages in any calendar quarter.
Penalty for non-coverage Fines of $100 per day up to $10,000, potential criminal charges, and personal liability for employee injuries.
Max weekly benefit $1,340
Statute of limitations 12 years
Audit window Typically within 90-120 days of policy expiration, but can extend longer.

How sole proprietor workers comp works in Wisconsin

A sole proprietor is the simplest business form: one person, no separate legal entity, all income reported on Schedule C. Wisconsin does not require sole proprietors to cover themselves. Owners can elect out by filing an exclusion form, lowering premium but giving up workers comp benefits if they are injured at work. If you have at least one employee, you almost certainly need a policy regardless of whether you cover yourself.

Cost for a sole proprietor in Wisconsin

Premium is rated on payroll. The owner draw on Schedule C is typically rated at the state minimum payroll for sole proprietors (often around $50,000 annualized) when the owner elects in. The class code drives the rate per $100, ranging from clerical at well under $1 to roofing or trucking at $20 or more in Wisconsin. A solo operator on a low-rate clerical code who elects in often pays only the carrier minimum (typically $250 to $500), while a contractor with a single helper can run from a few hundred to a few thousand a year depending on payroll. Schedule credits up to 25% are typical for low-loss accounts in Wisconsin.

When to elect in vs out

Electing in makes sense if your work is hands-on (contractor, trucker, roofer, landscaper) because workers comp is the only insurance that pays both medical and lost-wage benefits with no deductible. Electing out makes sense if your work is low-risk and you have personal health insurance plus disability coverage that replaces workers comp at lower cost. Run the math on minimum premium versus an individual disability policy before deciding.

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FAQs

Do sole proprietors need workers comp in Wisconsin?

Wisconsin does not require sole proprietors to cover themselves. Owners can elect out by filing an exclusion form, lowering premium but giving up workers comp benefits if they are injured at work.

When does a Wisconsin sole proprietor have to start carrying workers comp?

Employers with 3 or more employees, or 1 or more employees if paying $500 or more in wages in any calendar quarter. For a sole proprietor with no employees, the threshold typically does not trigger; once you make a first W-2 hire, the rule applies and you need a policy in force on the hire date.

What happens if a Wisconsin sole proprietor skips workers comp?

Fines of $100 per day up to $10,000, potential criminal charges, and personal liability for employee injuries.

Is workers comp tax-deductible for a sole proprietor in Wisconsin?

Yes, workers comp premium is a deductible business expense on Schedule C for a sole proprietor whether the policy is required by Wisconsin law or elected voluntarily. The deduction reduces taxable self-employment income, which also reduces the SE tax. Keep the policy declarations page and audit endorsement with your tax records.

Can a sole proprietor in Wisconsin skip workers comp by paying everyone 1099?

Workers are classified based on an 'economic realities' test, focusing on control and independence, not solely on 1099 status. If the workers act like W-2 employees (set hours, your tools, your direction), the carrier or state can reclassify them at audit and recover back premium plus penalties.