Key Takeaways

  • Michigan group health insurance is regulated under both state and federal law (ERISA, ACA)
  • COBRA continuation coverage applies to employers with 20 or more employees
  • Michigan has state continuation coverage for employers with fewer than 20 employees
  • Small group defined as 1-50 employees in Michigan
  • Mental health parity requirements apply to group health plans
Last updated: January 2026

Michigan Group Health Insurance

Michigan group health insurance is heavily regulated at both state and federal levels to protect employees and their dependents.

Regulatory Framework

RegulationApplies To
ERISAMost private employer plans
ACAAll health plans
Michigan Insurance CodeInsured group plans
Michigan HMO ActHMO group plans

Group Size Definitions

Michigan uses these group size definitions:

Market SegmentEmployee Count
Small Group1-50 full-time equivalent
Large Group51 or more full-time equivalent

Small Group Requirements

Michigan small group health insurance must provide:

  • Guaranteed issue (cannot deny coverage)
  • Community rating (limited health-based rates)
  • Essential health benefits
  • Mental health parity
  • No pre-existing condition exclusions

COBRA Continuation Coverage

The federal COBRA law requires continuation coverage:

COBRA Basics

AspectRequirement
Applies ToEmployers with 20+ employees
Duration18-36 months depending on event
PremiumUp to 102% of group rate
CoverageSame as active employees

Qualifying Events

EventDuration
Employment termination18 months
Reduced hours18 months
Divorce/legal separation36 months
Death of employee36 months
Medicare entitlement36 months
Dependent child aging out36 months

Exam Tip: COBRA applies to employers with 20 or more employees. For smaller employers, Michigan provides state continuation coverage.

Michigan State Continuation Coverage

For employers with fewer than 20 employees, Michigan provides continuation coverage:

State Continuation Coverage

AspectMichigan Requirement
Applies ToEmployers not subject to COBRA
DurationVaries by circumstance
PremiumAt group rate
CoverageContinuation of group benefits

When State Continuation Applies

  • Employee loses coverage due to termination or reduced hours
  • Dependent loses coverage due to qualifying event
  • Not eligible for COBRA

Mental Health Parity

Michigan requires mental health parity in group health plans:

Parity Requirements

AspectMust Be Equal
CopaysSame as medical/surgical
DeductiblesSame as medical/surgical
Annual LimitsSame as medical/surgical
Lifetime LimitsSame as medical/surgical
Treatment LimitsSame as medical/surgical

Covered Conditions

Michigan mental health parity applies to:

  • All mental health conditions
  • Substance use disorders
  • Behavioral health conditions

HIPAA Portability

Group health plans must comply with HIPAA portability:

Key HIPAA Provisions

  • Cannot deny enrollment based on health status
  • Must provide certificate of creditable coverage
  • Limits pre-existing condition exclusions
  • Protects against discrimination
Test Your Knowledge

What is the minimum employer size for federal COBRA to apply?

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Test Your Knowledge

What does mental health parity require in Michigan group health plans?

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Test Your Knowledge

What is the definition of a small group in Michigan?

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