Open Enrollment 2026: What Michigan Employers Need to Know

Open enrollment season can feel overwhelming for Michigan employers. Between federal requirements, state-specific regulations, and the need to communicate clearly with employees, there’s a lot to manage. Whether you’re a seasoned HR professional or a business owner handling benefits for the first time, understanding the 2026 open enrollment landscape will help you stay compliant and keep your workforce engaged.

Understanding Open Enrollment Basics

Open enrollment is the designated period when employees can make changes to their health, dental, vision, and other voluntary benefits without a qualifying life event. For most small to mid-sized employers offering group health insurance, this annual window is critical—it’s when employees make decisions that affect their coverage for the coming year.

Federal law requires employers to provide a reasonable enrollment period, though the specific timing can vary depending on your plan’s structure. Most employers align their open enrollment with the calendar year, running from late October through mid-November, though some use different plan years.

Michigan-Specific Regulatory Considerations

Michigan employers should be aware of several state-level requirements that complement federal regulations:

State Insurance Department Requirements

Michigan’s Department of Insurance and Financial Services (DIFS) oversees health insurance regulations. While Michigan follows most federal requirements under the Affordable Care Act (ACA), there are nuances worth understanding:

• Continuation coverage: Michigan requires compliance with both federal COBRA and state continuation requirements. Some employees may qualify for state continuation even if they don’t meet COBRA criteria, potentially extending coverage options.
• Dependent coverage age limits: Michigan generally aligns with federal rules allowing dependents to stay on plans until age 26, but it’s worth confirming your specific plan language.
• Network adequacy standards: Michigan insurers must maintain adequate provider networks. When reviewing plan options, ensure your carriers meet state standards for geographic access and specialty care.

Prevailing Wage Considerations

If your business does work involving prevailing wage contracts (common in construction and public works), be aware that health insurance contributions may factor into prevailing wage calculations. Consult with a labor attorney or benefits advisor if this applies to your business.

Critical 2026 Deadlines for Michigan Employers

Missing deadlines can result in compliance issues and coverage gaps. Here’s what you need to calendar:

Federal Deadlines

• October 15 – November 15, 2025: Individual marketplace open enrollment (Healthcare.gov). This affects uninsured employees and potentially those on your plan who might have marketplace options.
• Plan year start: Most plans renew January 1, 2026, though some operate on different cycles. Confirm your renewal date with your broker or carrier.
• Notice deadlines: You must provide Summary of Benefits and Coverage (SBC) documents and other required notices at least 30 days before your open enrollment begins.

Michigan-Specific Timing

While Michigan doesn’t impose separate state enrollment deadlines, your timing should account for:

• Payroll processing: Allow sufficient time for payroll to implement new elections before the plan year begins.
• Carrier processing: Most insurers need completed enrollment files 5-10 business days before the plan year starts.
• Employee processing time: Factor in time for employees to review materials and submit elections.

Best Practices for Open Enrollment Communication

Effective communication is the foundation of successful open enrollment. We consistently see better outcomes when employers invest in clear, multi-channel messaging:

Start Early

Begin educating employees at least 45 days before open enrollment starts. Early awareness prevents last-minute questions and allows time for one-on-one counseling if needed.

Use Multiple Communication Channels

Different employees absorb information differently: - Email: Send initial announcements and links to enrollment platforms - Printed materials: Provide one-page summaries of plan changes and deadlines - Meetings: Hold group information sessions to walk through plan options - One-on-one support: Offer individual consultations, especially for complex situations - Digital resources: Create a dedicated enrollment webpage with FAQs and plan comparisons

Highlight What’s Changing

Employees pay most attention to changes. Clearly communicate: - Carrier or plan option changes - Premium increases or decreases - New benefits or coverage modifications - Deadline changes from prior years

Make Comparisons Easy

Provide side-by-side plan comparisons showing: - Monthly premiums - Deductibles and out-of-pocket maximums - Copays for common services - Pharmacy benefits - Network providers

Dependent Verification and Eligibility

Open enrollment is an excellent time to verify dependent eligibility, particularly following regulatory scrutiny of dependent coverage verification in recent years. Best practices include:

• Request documentation for newly added dependents (marriage certificates, birth certificates, domestic partner declarations)
• Remove ineligible dependents (adults over 26, unless disabled; non-dependent children)
• Update beneficiary designations for life insurance and retirement accounts while you have employee attention
• Communicate requirements clearly so employees don’t feel penalized for administrative changes

Technology and Enrollment Platforms

Your enrollment platform should be: - User-friendly: Employees should complete enrollment in 10-15 minutes without confusion - Mobile-accessible: Many employees enroll on phones and tablets - Secure: Ensure data encryption and HIPAA compliance - Integrated with payroll: Automatic premium deduction reduces errors - Accessible: Include options for employees with visual or hearing impairments

If you’re upgrading platforms, test thoroughly before open enrollment launch and provide training to any HR staff supporting employees.

Common Open Enrollment Mistakes to Avoid

1. Insufficient notice: Don’t rush the notice period; employees need adequate time to review materials
2. Unclear deadline communication: Ambiguous deadlines lead to missed enrollments and coverage gaps
3. Inadequate support: Expecting employees to navigate complex benefit decisions alone creates frustration
4. Incomplete beneficiary updates: Life events happen; encourage beneficiary changes during open enrollment
5. Poor documentation: Keep records of all notices sent, confirming delivery and employee acknowledgment

Working with a Benefits Advisor

If this feels complex—and for many Michigan employers, it is—partnering with a benefits advisor can significantly reduce your administrative burden. An experienced advisor can:

• Ensure compliance with Michigan and federal requirements
• Conduct market analysis to secure competitive rates
• Design open enrollment communication strategies
• Troubleshoot eligibility and enrollment issues
• Update you on regulatory changes affecting your business

Action Items for 2026

Start planning now, even if open enrollment feels months away:

1. Confirm your plan renewal date and carrier’s specific enrollment deadlines
2. Audit current dependent coverage for eligibility issues
3. Gather feedback from employees about past enrollment experiences
4. Review your communication materials and update for 2026
5. Schedule carrier renewal presentations to understand plan changes early
6. Set calendar reminders for all critical dates
7. Connect with a benefits professional if you don’t have one

Open enrollment doesn’t have to be chaotic. With proper planning, clear communication, and the right support, you can guide your Michigan workforce through the process smoothly—ensuring they have the coverage they need and you maintain compliance with all applicable regulations.

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Nexus Benefit Solutions is an independent employee benefits advisory firm based in West Michigan. Questions? Reach out at jason@nexusbenefitsolutions.com or call 616-425-9740.