Workers' Comp for Construction Employers in Ohio

We write workers' compensation for construction employers across Ohio. Below: the Ohio-specific rules that affect your construction policy, plus the audit traps that cost construction operators the most.

Call 859-407-4888

Ohio WC Rules That Matter for Construction Employers

Coverage required
1+ employees

Ohio is a monopolistic state — coverage from the state fund only.

Rating bureau
BWC

Sets loss costs + class codes used in your premium.

If voluntary market declines
Ohio Bureau of Workers' Compensation (stat...

Typically 20–50% higher than voluntary rates.

Top Construction WC Risks We See in Ohio

These are the injury types that drive most claims — and the audit traps most likely to inflate your Ohio construction premium.

Injury exposures

  • falls from heights
  • struck-by machinery
  • electrocution
  • caught-in/between
  • back injuries from lifting

Audit traps

  • uncertified subcontractor payroll pulled into your premium
  • 1099 crew reclassified as employees at audit
  • executive officers wrongly in a high-rate code
  • overtime payroll not stripped to straight-time
  • material handling lumped into framing class

Class codes most common for construction: NCCI codes 5403, 5645, 5606, 5213 (carpentry, framing, exec, concrete)

Frequently Asked Questions

Is workers' comp required for construction employers in Ohio?

Yes — Ohio requires workers' comp once you have 1+ employees, and construction almost always triggers coverage requirements from day one. Because Ohio is a monopolistic state, coverage must be purchased from the state fund.

What class codes usually apply to construction operations in Ohio?

NCCI codes 5403, 5645, 5606, 5213 (carpentry, framing, exec, concrete). BWC sets the exact rates for Ohio. Class code assignment is the single biggest cost lever in construction WC — misclassification (whether intentional or accidental) is the #1 audit finding we see and can cost thousands per year.

How can Ohio construction employers lower their WC premium?

Four levers work in Ohio: (1) accurate class-code assignment with clean payroll separation by role, (2) a written return-to-work program that minimizes indemnity payouts, (3) diligent subcontractor COI tracking so uninsured sub payroll doesn't roll into your audit, and (4) shopping multiple carriers at each renewal — BWC sets loss costs but individual carrier rate deviations vary significantly.

All Ohio WC rules →

Threshold, bureau, monopolistic status, assigned-risk pool, and state-wide FAQs.

All Construction WC coverage →

Deep dive on construction exposures, audit traps, and our approach.

Get a Ohio Construction quote

We specialize in construction workers' comp across all 50 states — including Ohio. Free policy review, no pressure.

Call 859-407-4888