Who Must File Form 5500 for Health Insurance?

If your company sponsors group health coverage governed by ERISA and the plan had 100 or more participants on the first day of the plan year, the plan administrator must file Form 5500 for that health insurance plan every year with the Department of Labor. Smaller plans that are fully insured or paid straight out of the employer’s general assets are generally exempt. Governmental plans and most church plans are outside ERISA and never file. Everything else turns on three questions: is your coverage an ERISA welfare plan, who counts as a participant, and does an exemption apply.

Who Is Legally on the Hook

The filing obligation belongs to the plan administrator. Federal law defines the plan administrator as whoever the plan document names for that role.¹ If no one is named, the employer is the administrator by default. At most single-employer companies, that means the business owner or an HR officer carries the legal duty to sign and submit the form.

Hiring a third-party administrator or benefits broker to prepare and transmit the filing is common and sensible, but it does not shift the legal responsibility. When a TPA misses a deadline or files an incomplete return, the penalty notice goes to the plan administrator. Delegation of the work is not delegation of the liability.

Is Your Health Coverage an ERISA Plan?

ERISA reaches any plan, fund, or program an employer establishes to provide medical, surgical, or hospital care to employees or their dependents.¹ That language covers group medical insurance, dental and vision plans, prescription drug programs, employer-funded health reimbursement arrangements, and employee assistance programs that provide medical benefits. If the employer pays for it or sponsors it as an organized benefit, it is almost certainly an ERISA welfare plan.

A payroll-deduction arrangement that simply routes money into employee-owned savings accounts is not itself a welfare plan.² The line between an organized benefit and a payroll convenience matters because ERISA plans carry reporting and fiduciary duties that informal practices do not.

Voluntary Coverage That Falls Outside ERISA

A group or group-type insurance program offered through the workplace can qualify for a safe harbor and avoid ERISA entirely if all four of the following are true:³

The employer pays no part of the premium, and employees cannot pay through pre-tax salary reductions under a cafeteria plan.
Employee participation is completely voluntary.
The employer’s only role is letting the insurer publicize the program and handling payroll deductions; no endorsement or recommendation.
The employer receives no consideration beyond reasonable compensation for the administrative cost of the deductions.

Supplemental life, accident, and hospital indemnity products offered on a purely voluntary, after-tax basis often meet this safe harbor. When they do, no Form 5500 filing is required for those benefits. Once the employer contributes to premiums or allows pre-tax payment, the safe harbor is gone and the coverage becomes an ERISA plan.

Coverage That Never Triggers Form 5500

Several categories are exempt from Form 5500 regardless of participant count:

Governmental plans established by federal, state, or local government entities for their employees fall outside ERISA entirely.⁴
Church plans established and maintained by a church or convention of churches for church employees are excluded, provided the plan has not elected ERISA coverage.⁵
Programs maintained solely to comply with state workers’ compensation, unemployment, or disability insurance laws are not ERISA welfare plans.⁴
Top-hat welfare plans maintained exclusively for a select group of management or highly compensated employees are exempt from annual reporting.

Confirm any category carefully. A church-affiliated hospital, for example, may not qualify as a church plan if its workforce is primarily employed in unrelated commercial operations.⁵

The Small Plan Exemption

An ERISA welfare plan can still avoid Form 5500 if it qualifies as a small plan. Two conditions must both be met:

Fewer than 100 participants at the beginning of the plan year.⁶
Fully insured or unfunded. Benefits are paid through an insurance contract with a licensed carrier, or directly from the employer’s general assets with no separate trust.⁶

Most small and mid-sized employers with a standard group health policy meet both. The exemption does not cover a self-funded plan that holds assets in a trust, even at fewer than 100 participants.

The 80-to-120 Transition Rule

Plans hovering around the 100-participant line have some flexibility. If the plan had between 80 and 120 participants on the first day of the plan year and filed as a small plan the previous year, the administrator can continue filing the same way.⁷ It keeps a plan from switching categories every time a few employees come or go. It only works if the plan actually filed as small the prior year; a brand-new plan starting with 105 participants cannot use it.

How to Count Participants

The count is taken as of the first day of the plan year and drives both whether you file and which form you use. Include:

Active employees enrolled in the plan or eligible for benefits on that date.
Former employees and retirees still receiving benefits under the plan.
COBRA beneficiaries receiving continuation coverage.⁸

Dependents are not counted. A covered employee whose spouse and three children are also on the policy is one participant, not five.⁸ A child who is an alternate recipient under a qualified medical child support order does not count separately either. An individual stops being a participant when they are both ineligible for any benefit and no longer designated as a participant by the plan.

Multiple Employer Welfare Arrangements

A multiple employer welfare arrangement provides health benefits to employees of two or more unrelated employers. If it also meets the definition of an ERISA welfare plan, the administrator must file both Form 5500 and Form M-1, regardless of the plan’s size or funding method.⁹ The small plan exemption does not apply. Filing one does not satisfy the other, and both filings must use the same EIN and identifying information.

Multiple Policies and the Wrap Document

Employers offering separate medical, dental, vision, and life insurance policies have to decide whether each one is a standalone ERISA plan requiring its own Form 5500. Most consolidate by adopting a wrap document, a written plan instrument that groups the individual insurance policies under a single ERISA plan with one plan number. With a wrap in place, one Form 5500 covers all the wrapped benefits, and a separate Schedule A is attached for each insurance contract.

Without a wrap, each standalone policy that meets the ERISA definition could require its own filing. The DOL has assessed penalties against employers who filed for their medical plan but never filed for a standalone dental or vision policy. Adopting a wrap document eliminates that risk.

When Filing Is Due

Form 5500 is due by the last day of the seventh month after the plan year ends.¹⁰ For a calendar-year plan, the deadline is July 31. If the due date falls on a weekend or federal holiday, it moves to the next business day.

An automatic extension of up to two and a half months is available by filing Form 5558 with the IRS on or before the original deadline. For a calendar-year plan, the extended deadline is October 15. A separate Form 5558 is required for each plan. As of January 2025, Form 5558 can be submitted electronically through EFAST2 or on paper. If the plan year matches the employer’s tax year and the employer has already received an extension on its federal income tax return to a date later than the Form 5500 deadline, the plan automatically gets the same extension without filing Form 5558.¹¹

What Happens If You Don’t File

Penalties come from two agencies, and they stack. The Department of Labor can assess a civil penalty of up to $2,739 per day for each day the plan administrator fails to file a complete and accurate report.¹² That amount is adjusted for inflation each year, and the DOL does not need a court order to impose it. The IRS can assess its own penalty of $250 per day, up to $150,000 per late return.¹³ A filing that is 60 days late could theoretically generate over $164,000 in DOL penalties plus $15,000 from the IRS.

The Delinquent Filer Voluntary Compliance Program

If you have already missed a deadline, the DOL’s Delinquent Filer Voluntary Compliance Program offers dramatically reduced penalties for administrators who come forward on their own. The base penalty is $10 per day, with the following caps:¹⁴

Small plans: $750 per late filing, $1,500 maximum per plan across all delinquent years. Plans sponsored by a 501(c)(3) organization have a $750 per-plan cap.
Large plans: $2,000 per late filing, $4,000 maximum per plan.

The program is not available once the DOL has already contacted you about the missing filing. If you know a return is late, act before the notice arrives.

1
Office of the Law Revision Counsel. 29 USC 1002 Definitions
2
eCFR. 29 CFR Part 2510 – Definition of Terms Used in Subchapters C, D, E, F, G, and L of This Chapter
3
eCFR. 29 CFR 2510.3-1 – Employee Welfare Benefit Plan
4
U.S. Department of Labor. Employee Benefit Plans – Employment Law Guide
5
Office of the Law Revision Counsel. 26 USC 414 Definitions and Special Rules
6
Internal Revenue Service. Form 5500 Corner
7
DOL.gov. Frequently Asked Questions On The Small Pension Plan Audit Waiver Regulation
8
Department of Labor. 2024 Instructions for Form 5500
9
U.S. Department of Labor – Employee Benefits Security Administration. Form M-1 Report for Multiple Employer Welfare Arrangements Instructions
10
Department of Labor – EFAST2. About EFAST2 Filing
11
Internal Revenue Service. Form 5558 Application for Extension of Time To File Certain Employee Plan Returns
12
Federal Register. Federal Civil Penalties Inflation Adjustment Act Annual Adjustments for 2025
13
Internal Revenue Service. Penalty Relief Program for Form 5500-EZ Late Filers
14
U.S. Department of Labor Employee Benefits Security Administration. Delinquent Filer Voluntary Compliance Program