Colorado Workers' Compensation State‑Filled Rates: How They Work and What to Expect

What Are State‑Filled Rates in Colorado?

In Colorado, the state insurance fund handles workers' compensation for employers who cannot secure coverage through private insurers. When a business opts for state coverage, the state sets the premium based on the employer's industry, payroll, and claim history. The premium is paid directly to the state and the state, in turn, pays claims.

How the Rates Are Determined

Rates are derived from the State Insurance Fund's annual loss experience. The formula considers three main factors:

• Industry classification (e.g., construction, manufacturing, office)
• Payroll size and composition
• Historical claim frequency and severity

After the state calculates the base rate, a small administrative surcharge is added. The resulting premium is expressed as a rate per $100 of payroll.

Who Pays the Premium?

Employers who choose state coverage pay the premium directly to the Colorado Department of Insurance. Private insurers are not involved, so the employer's payroll remains the sole source of funds for the premium. Workers, however, receive benefits from the state fund if they file a claim.

Benefits of State‑Filled Coverage

State coverage offers several advantages for small or high‑risk businesses:

• Guaranteed coverage regardless of private insurer availability
• Transparent rate calculation based on objective data
• Simplified claims process through a single state entity

Considerations and Potential Drawbacks

While state coverage guarantees access, it may not always be the most economical option:

• Rates can be higher than competitive private insurers for low‑risk employers
• Limited flexibility in customizing coverage levels
• No ability to negotiate discounts or bonuses with the state fund

How to Apply for State Coverage

Employers who qualify or prefer state coverage must submit an application to the Colorado Department of Insurance. The process involves:

Once approved, the employer receives a state‑filled certificate that must be kept on file and presented to employees during employment onboarding.

Comparing State vs. Private Rates: A Quick Reference