Missouri Health Insurance
Cost Per Employee Calculator
Compare fully insured, level-funded, self-funded, PEO, and MEWA health plan costs for your Missouri business -- powered by real data from KFF, CMS, and state DOI filings.
Missouri Small-Group Health Insurance at a Glance
Calculation Methodology
Base Premium Calculation: We start with the KFF 2025 national average single premium ($720/mo) and apply the Missouri cost index (0.92) to get the state-adjusted base rate. Age adjustments use the CMS 3:1 federal age curve, and tier mix multipliers convert single rates to blended PEPM costs.
Funding Type Adjustments: Fully insured rates include carrier margin (15-20%) and risk charges. Level-funded rates remove 8-12% of carrier margin but add stop-loss premium. Self-funded rates are pure expected claims plus admin fees (typically $30-50 PEPM) and stop-loss. PEO rates reflect group purchasing power (typically 14% below direct market). MEWA rates are similar to PEO but with association-specific pool dynamics.
Trend Projections: 3-year projections use funding-type-specific trend rates: fully insured (7.9%), level-funded (5.0%), self-funded (4.7%), PEO (3.7%).
Limitations: This calculator provides estimates based on market averages. Actual premiums depend on your specific group's claims history, plan design, carrier underwriting, and negotiated rates. Use this as a comparison starting point, then request actual quotes.
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What Missouri Employers Need to Know About Health Insurance Costs
Missouri has a cost index of 0.92, approximately 8% below the national average. The state has two distinct major metro markets -- St. Louis and Kansas City -- each with different carrier dynamics and provider landscapes.
Missouri expanded Medicaid via ballot initiative in 2020, and implementation has helped reduce the uninsured rate, particularly in rural areas where coverage gaps were most severe.
The St. Louis market is dominated by Anthem BCBS, while the Kansas City side is served by BCBS of Kansas City. UnitedHealthcare and Cigna provide statewide competition. Mercy Health Plans, affiliated with the Mercy hospital system, offers integrated options in certain regions.
Missouri's diverse economy (automotive, agriculture, financial services, healthcare) means employers across different industries have varying benefit needs. PEO arrangements and level-funded plans provide flexible alternatives to traditional fully insured coverage.