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What does ERISA require of an employer that offers group health benefits?
The Employee Retirement Income Security Act (ERISA) applies to nearly every private employer that sponsors a group health or welfare plan, at any headcount. It requires a written plan document, a summary plan description actually delivered to participants, fiduciary conduct in running the plan, and Form 5500 reporting for larger plans. Most employers we meet are missing at least one of these.
4J Insurance Brokerage is an independent employee benefits and commercial insurance brokerage in Frisco, Texas, serving North Texas employers with approximately 50 to 500 employees. This page covers the employer-side basics in plain language.
Who ERISA covers
If you are a private-sector employer and you sponsor group medical, dental, vision, life or disability coverage, your plan is almost certainly an ERISA plan. Governmental employers and most church plans are outside ERISA. Company size is not the test. The belief that small employers are exempt usually comes from confusing ERISA with the Consolidated Omnibus Budget Reconciliation Act (COBRA), which does have a 20-employee threshold. We cover that separately in our COBRA employer guide.
The written plan document and the summary plan description
ERISA expects two things most employers assume the carrier handles. First, a written plan document that states the terms of the plan: eligibility, benefits, who administers it, and how it can be amended. Second, a summary plan description (SPD) written for participants and actually distributed to them, with new participants generally due a copy within 90 days of becoming covered.
The carrier’s benefit booklet usually does not satisfy either requirement on its own, because it is written to describe the insurance contract rather than to carry the ERISA-required terms. The standard fix is a wrap document: a short legal document that incorporates the carrier materials and adds the missing language, wrapping every welfare line into one plan.
Form 5500 reporting
Welfare plans with 100 or more participants at the beginning of the plan year generally file an annual Form 5500. Smaller plans that are fully insured, unfunded, or a combination are generally exempt from filing. Two practical notes. Participant counts move, so a growing company can cross the line without noticing. And if filings were missed, the Department of Labor operates a delinquent filer program that reduces the cost of catching up. That conversation is far better had voluntarily than after a notice arrives.
Fiduciary duties
Whoever operates the plan must act solely in the interest of participants, follow the plan terms, and handle any employee contributions with care. For a typical fully insured group this shows up in mundane ways: sending withheld premiums to the carrier promptly, applying eligibility terms as written, and keeping what you tell employees consistent with what the documents say.
What we actually see when we review groups
- No wrap document. The most common gap, and the cheapest to fix.
- An SPD that exists but was never distributed. Delivery is the requirement, not possession.
- Eligibility drift. The handbook says 30 days, the carrier contract says first of the month after 60. At claim time that mismatch belongs to the employer.
- Section 125 confusion. The cafeteria plan document that lets employees pay premiums pre-tax is a separate document with its own rules. Having one does not satisfy ERISA, and a wrap document does not satisfy Section 125.
Where this fits in your renewal
A renewal is the natural time to check documents, because eligibility and contribution decisions are being made anyway. Our group health renewal review includes a plain-language documents check, and our ACA compliance hub covers the reporting side. Definitions used on this page are in the group health glossary.
ERISA employer FAQ
Does ERISA apply to small employers?
Generally yes. ERISA applies to private-sector employers that sponsor a group health or welfare plan regardless of headcount. The common belief that small employers are exempt usually confuses ERISA with COBRA, which has a 20-employee threshold.
Is the insurance carrier’s booklet the same thing as a summary plan description?
Usually not by itself. Carrier booklets typically lack required ERISA language, which is why many employers adopt a wrap document that combines the carrier materials with the missing terms.
Which employers have to file Form 5500 for a health plan?
In general, welfare plans with 100 or more participants at the start of the plan year file Form 5500. Smaller plans that are fully insured, unfunded, or a combination of the two are generally exempt. Participant counts and funding details decide it, so the count is worth confirming each year.
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This page is educational and does not constitute legal, tax or benefits advice. Employer-specific questions may require review by benefits, tax, legal, payroll or compliance professionals. 4J Insurance Brokerage is a broker and does not underwrite risk or issue policies.