What Makes Ohio Different from Other States
Ohio is a monopolistic workers' comp state, alongside North Dakota, Washington, and Wyoming.
Private carriers cannot sell workers' comp in Ohio. Coverage is purchased through the Ohio BWC, governed by Ohio Revised Code Chapter 4123.
Most employers with one or more employees must participate. A few narrow exemptions exist (certain ministers, some volunteers, narrow officer categories).
Here's the gap that catches people.
State-fund workers' comp does not include employers liability coverage. In every other state, that piece comes baked into the WC policy.
To plug the hole, Ohio employers add a stop-gap endorsement to the general liability or BOP.
It covers claims like an injured worker suing outside the WC system, or a third-party-over action where a co-defendant drags the employer in.
Skip the stop-gap and defense in that scenario may not be covered.
It's the most common Ohio-specific mistake we see on submissions.
BWC premium is set by class code, payroll, experience modifier, and any discount programs (Group Rating, Group Retro, Drug-Free Safety, Destination: Excellence).
Ohio also requires every employer to choose a Managed Care Organization (MCO) within 30 days of starting WC coverage. The MCO manages medical claims for injured workers.