MWCIA: Minnesota Workers' Compensation Insurers Association
Last verified: 2026-07-25 · Reviewed against the bureau's official filings and Minnesota rating law — how we verify
Bureau Overview
State served
Rate-making model
Pure premium base rates · data service organization
Current effective date
2026-01-01
January 1 really is Minnesota's cycle, but MWCIA publishes pure premium base rates rather than NCCI-style loss costs, and those values change shape for 2026: MWCIA extended Minnesota's pure premium base rates, assigned-risk rates and expected loss rates from two decimal places to three, effective January 1, 2026. The Deputy Commerce Commissioner's order of September 5, 2025 set the Assigned Risk Plan's pure premium multiplier at 2.15 against the 2026 Minnesota Ratemaking Report, a 6.2% decrease in total assigned-risk premium effective January 1, 2026.
Official site
The Minnesota Workers' Compensation Insurers Association (MWCIA) is Minnesota's licensed data service organization for workers' compensation. Its primary function is to produce an annual Ratemaking Report — the pure premium base rate schedule by classification, together with the calculations and factors behind it — which serves as the basis for all workers' compensation rates in Minnesota.
The MWCIA publishes pure premium base rates (PPBRs) and rating values so carriers can generate complete individual class rates; it does not set the rate any insurer charges. Each carrier builds its own rate on the pure premium base rate, adding its expenses and profit and applying the employer's experience modification. Effective January 1, 2026 the MWCIA extended its pure premium base rates and expected loss rates to three decimal places, a refinement to how precisely the base figures are stated.
How Minnesota rates are built
The MWCIA's role is to provide the common actuarial foundation — the pure premium base rates — from its collected loss and payroll data. Carriers then compete on the rate they charge above that foundation, so Minnesota premiums for the same classification vary by insurer. The MWCIA also maintains Minnesota's classification and experience-rating framework, making it the authoritative source for how a Minnesota business is classified.
For Minnesota's modeled per-class benchmarks and current filing context, see the Minnesota workers' compensation rates hub.
Sources
- MWCIA — Ratemaking Report (retrieved 2026-07-25)
- Minnesota Department of Commerce — Workers' Compensation (retrieved 2026-07-25)
Frequently Asked Questions
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