Do You Have to Offer Health Insurance in Colorado

In Colorado the duty around small group coverage runs to the carrier: an insurer selling small group plans must issue one to any eligible small employer that applies. Two Colorado duties do sit on employers, and both attach only once you already have a plan. The federal provision people mean is a conditional tax consequence.

Colorado writes the small group obligation onto the carrier

Colorado’s availability rule is addressed to somebody, and that somebody is not you. C.R.S. § 10-16-105(1)(b)(I) provides:

“Subject to subsections (2) to (6) of this section, each carrier that offers a small employer health benefit plan in this state shall issue any small employer health benefit plan to any eligible small employer that applies for the plan and agrees to make the required premium payments and satisfy the other reasonable provisions of the health benefit plan not inconsistent with this article.”

That is the shape of Colorado small group law in one sentence. Shall issue is pointed at the carrier; the employer is the party who applies, not the party under a command. The same subsection then requires the carrier to cover all of an eligible small employer’s eligible employees rather than some of them — again a rule about the carrier.

The sentence that looks like a general answer, and the section it actually lives in

There is one line in the Colorado code that reads exactly like the answer to this question. C.R.S. § 8-45-101(11) says that nothing in this section shall require or be interpreted to require an employer to provide health insurance coverage for its employees.

Read the first three words again. This section is C.R.S. § 8-45-101, which creates Colorado’s workers’ compensation insurer as a political subdivision, and the line disclaims a health-coverage duty arising from that section. With its scope attached it clarifies; without its scope it becomes a general declaration about Colorado law that the statute never makes. That is how an employer ends up confidently wrong while holding a real citation.

Colorado duty one: the written continuation notice

Colorado does put a real, enforceable duty on employers, and this is it. C.R.S. § 10-16-108(1)(e)(II) provides:

“The employer shall notify the employee in writing of the employee’s right to continue health-care coverage upon termination from employment. A written communication signed by the employee or a notice postmarked within ten days after termination mailed by the employer to the last-known address of the employee satisfies the notice requirements of this subparagraph (II). The notification must inform the employee of: (A) The employee’s right to elect to continue the existing coverage at the applicable rate; (B) The amount the employee must pay monthly to the employer to retain the coverage, which payment includes the employer’s contribution for the employee in addition to the employee’s own contribution; (C) The manner in which, and the office of the employer to which, the employee must submit the payment to the employer; (D) The date and time by which the employee must submit the payments to the employer to retain coverage; and (E) The fact that the employee will lose the coverage if the employee does not timely submit the payment to the employer.”

This is a paperwork duty with teeth. C.R.S. § 10-16-108(1)(e)(IV) lets an employee who was never notified retain coverage anyway by paying the employer within a window running from the termination date. C.R.S. § 10-16-108(1)(e)(V) goes further: where the employee paid on time and the employer then failed to pay the carrier, so coverage terminated, the employer is liable for that coverage.

The plan-side rule at C.R.S. § 10-16-108(1)(a) requires every employer group health benefit plan issued by a carrier to contain a continuation provision, and C.R.S. § 10-16-108(1)(c) relieves the employer of offering continuation to a person covered by medicare or medicaid.

Notice the condition running through all of it: the duty bites where a plan already exists and remains in force for active employees. It is not a duty to have a plan. It is the duty that comes with having one.

Colorado duty two: keeping benefits in place during paid family and medical leave

The second duty sits in a different title of the Colorado code entirely, which is why employers miss it. C.R.S. § 8-13.3-509(2) provides:

“During any paid family and medical leave taken pursuant to this part 5, the employer shall maintain any health-care benefits the covered individual had prior to taking such leave for the duration of the leave as if the covered individual had continued in employment continuously from the date the individual commenced the leave until the date the family and medical leave insurance benefits terminate. The covered individual shall continue to pay the covered individual’s share of the cost of health benefits as required prior to the commencement of the leave.”

Keep this one in its own box. Colorado’s paid family and medical leave program is a wage-replacement and leave program, and the duty above is a benefits-maintenance duty riding on top of it. What it says is narrow and practical: if you already provide health-care benefits, you keep them in place while an employee is on that leave, and the employee keeps paying their share.

Two lines at the same number, and they are not the same line

Here is where most published summaries of Colorado are still wrong. Colorado’s small employer definition is at C.R.S. § 10-16-102(61)(b), and the operative text reads:

“(b) ‘Small employer’ means any person that: (I) Is actively engaged in business; (II) Employed an average of at least one but not more than fifty eligible employees on business days during the immediately preceding calendar year, except as provided in subsection (61)(e) of this section; and (III) Was not formed primarily for the purpose of purchasing insurance.”

The federal applicable large employer line is set by regulation rather than by the statute, and the parenthetical is the part that changes who is covered. 26 C.F.R. § 54.4980H-1(a)(4) provides:

“(4) Applicable large employer. The term applicable large employer means, with respect to a calendar year, an employer that employed an average of at least 50 full-time employees (including full-time equivalent employees) on business days during the preceding calendar year. For rules relating to the determination of applicable large employer status, see § 54.4980H-2.”

Those two tests sit at the same number and answer different questions. Colorado counts eligible employees to decide which rules attach to the policy. The federal rule counts full-time employees including full-time equivalent employees to decide whether an employer can owe an assessable payment. You can land on the small side of one and the large side of the other.

Colorado does borrow the federal counting machinery without borrowing the federal consequence. C.R.S. § 10-16-102(61)(c) directs that the number of eligible employees is calculated using the method set forth in 26 U.S.C. sec. 4980h (c)(2)(E). C.R.S. § 10-16-102(61)(f) treats commonly controlled entities, and an employer together with any predecessor employer, as one employer. C.R.S. § 10-16-102(61)(e) measures a new employer on the average it reasonably expects to employ in the current calendar year. And where only one employee enrolls, C.R.S. § 10-16-102(61)(d) requires the employer to give the carrier two recent quarterly employment and tax statements substantiating two or more eligible employees.

Which side of that line you sit on also decides whether Colorado’s closed list of small-group rating case characteristics reaches your plan at all — a separate subject with its own enumeration, set out in our Colorado small business health insurance guidance.

The federal provision is written as a condition, not as an order

26 U.S.C. § 4980H(a) is the text people mean when they say the employer mandate. Read it as it is drafted:

“(a) Large employers not offering health coverage If— (1) any applicable large employer fails to offer to its full-time employees (and their dependents) the opportunity to enroll in minimum essential coverage under an eligible employer-sponsored plan (as defined in section 5000A(f)(2)) for any month, and (2) at least one full-time employee of the applicable large employer has been certified to the employer under section 1411 of the Patient Protection and Affordable Care Act as having enrolled for such month in a qualified health plan with respect to which an applicable premium tax credit or cost-sharing reduction is allowed or paid with respect to the employee, then there is hereby imposed on the employer an assessable payment equal to the product of the applicable payment amount and the number of individuals employed by the employer as full-time employees during such month.”

If — and — then. Both conditions must be met, and the second requires that an employee actually enrolled in exchange coverage with a credit or reduction. It is a conditional tax consequence on an applicable large employer, not a command to offer coverage.

If you were issued a Colorado plan before 2026 and you sit above fifty

Colorado’s band moved to fifty effective January 1, 2026, and the General Assembly wrote a transition for the employers the move would otherwise push out of the small group market. C.R.S. § 10-16-105.1(3.5)(d)(I) provides:

“(d) (I) If an employer was issued a small group health benefit plan before January 1, 2026, and employs between fifty-one and one hundred employees, the employer may elect to remain in the small group health benefit market for five years after the date of the issuance of the employer’s existing health benefit plan or elect to enter the large group health benefit market at the expiration of the employer’s existing health benefit plan.”

Keep that election separate from the ordinary outgrowing rule. C.R.S. § 10-16-105.1(3.5)(a) and C.R.S. § 10-16-105.1(3.5)(b) describe a standing grandfather-on-renewal for a small employer that was issued a small group plan and subsequently employs more than fifty eligible employees: Colorado small group law continues to apply as long as that employer renews its current plan or a similar plan the carrier offers. C.R.S. § 10-16-105.1(3.5)(c) puts a notification duty on the carrier when it becomes aware that the employer has crossed the line. Different triggers, different populations, different durations.

That amendment also carried its own conditional repeal, and the current edition of the statutes answers whether it has fired rather than leaving it to inference. The publisher’s editor’s note to C.R.S. § 10-16-105.1 states: As of publication date, the revisor of statutes has not received the notice referred to in subsection (3.5)(d).

If you decide not to buy a group plan, Colorado still has a sentence for you

Most employers asking this are not looking for a loophole. They are looking for what else exists. C.R.S. § 10-16-105.2(1.5) addresses it directly:

“Notwithstanding any other provision of law, a small employer that does not have, and has not had in the previous twelve months, a small group health benefit plan providing coverage to its employees under this article may reimburse an employee, whether through wage adjustments or health reimbursement arrangements, for any portion of the premium for a health coverage plan.”

That subsection says what it says and nothing more should be read into it. It describes no particular federal reimbursement product, and its does not have, and has not had in the previous twelve months clause is doing real work. Read it with your own tax and benefits advisers before relying on it — and know it exists before you conclude the only options are a group plan or nothing.

When you may buy, and the guardrails a carrier is allowed to apply

If you do decide to offer coverage, Colorado does not make you wait for a season. C.R.S. § 10-16-105.7(2)(a) requires that a carrier offering a group health benefit plan in this state shall permit an employer to purchase a group health benefit plan at any point during the year. C.R.S. § 10-16-105.7(2)(b) is the practical exception: a carrier may decline a small employer that cannot comply with a material plan provision on employer contribution or group participation, and may limit that group’s availability to a defined window.

Those participation and contribution rules are the other half of an accurate answer, and C.R.S. § 10-16-105(3) constrains how a carrier may use them. A carrier may not apply a waiting period beyond the statutory maximum; it must apply its minimum participation and minimum employer contribution requirements uniformly among small employers with the same number of eligible employees; it may vary those requirements by group size and by product; it may not count against you an employee or dependent who has consistently maintained other creditable coverage; and once it has accepted your group, it may not increase either requirement.

That last clause is the one to remember at renewal: the requirement you qualified under is the one that keeps applying to you. If you are starting from scratch, our first-time group health service walks the participation and contribution questions before anything is quoted, and you can ask for a Colorado quote once you know where your headcount actually lands.

What the answer really is

Colorado hands carriers a duty to sell small group coverage to any eligible employer who asks, on terms they cannot tighten afterward. What it hands the employer is short and conditional: tell a departing employee in writing what their continuation rights are, and keep health-care benefits in place during paid family and medical leave. Both are enforceable. Neither is a reason to buy a plan.