A group health plan is coverage an employer buys for its people, with the employer as the policyholder. In Colorado, whether that coverage is a small group plan turns on the employer’s relationship to the premium and the tax treatment — not on headcount alone, and not on what the product happens to be called.
The dividing line is the group health plan, not the size of the company
Federal rules draw the boundary at whether coverage is offered in connection with a group health plan. 45 CFR § 144.103 defines the group market as the market for health insurance coverage offered in connection with a group health plan
, and the individual market as the market for health insurance coverage offered to individuals other than in connection with a group health plan
. The small group market is then described in the same section as the market under which individuals obtain coverage on behalf of themselves and their dependents through a group health plan maintained by a small employer.
The practical consequence is one most first-time buyers have not met. The employer is the group policyholder, and federal rating rules at 45 CFR § 147.102(a)(1)(ii)(B) locate the group by group policyholder’s principal business address
rather than by each employee’s home address. A business with staff scattered across Colorado is one group at one address, which is not how a person buying coverage for themselves experiences the same market. What that does and does not include is set out on the group health coverage page.
Colorado decides whether a plan is a small group plan by the employer’s relationship to the premium
This is the question Colorado answers in its own statute, and it answers it without mentioning headcount. C.R.S. § 10-16-105.2(1)(a), in the 2026 edition of Title 10, applies the article to a health benefit plan providing coverage to a small employer’s employees where any of four conditions is met: the employer pays any portion of the premium or benefit; an eligible employee or dependent is reimbursed by or on behalf of the employer for any portion of the premium, whether through wage adjustments or otherwise; the plan is treated by the employer or by the employees or dependents as part of a plan or program for the purposes of Section 106, Section 125 or Section 162 of the Internal Revenue Code of 1986, as amended; or the plan is marketed to individual employees through an employer or at a place of business, except as otherwise allowed by rule.
That is a test about money and tax treatment, and it is worth reading twice, because it means a plan can become a Colorado small group plan through arrangements an owner did not think of as buying group coverage. It also means the label on the product settles nothing.
Two carve-outs sit next to that rule and have to travel with it
Quoting the applicability rule without its exceptions describes a wider rule than Colorado wrote. C.R.S. § 10-16-105.2(1)(b) removes from the article a multiple employer health trust, as set forth in section 10-3-903.5 (7)(b), or a multiple employer welfare arrangement, as set forth in section 10-3-903.5 (7)(c).
Those are different animals with different governance, and they are outside this article by its own terms.
The second carve-out is conjunctive and every limb of it matters. C.R.S. § 10-16-105.2(1)(d) takes a plan out of the small group provisions where the premium is paid through a section 125 plan, the employer makes no contribution to it, the employer has no employer-sponsored health benefit plan, and the employer pays no portion of the premium or benefit. All four conditions have to hold together. An author who drops one of them has described a different rule, and an employer who reads only part of it may conclude the carve-out reaches an arrangement that it does not.
One more caution about the section itself: C.R.S. § 10-16-105.2 is headed Small employer health insurance availability program, and it is not a program. Its operative text is an applicability rule stating when the article reaches a plan. The heading is not the scope.
Health history does not decide whether your group can buy, and that guarantee has conditions
Federal law places the guarantee squarely. 45 CFR § 147.104 provides that a health insurance issuer that offers health insurance coverage in the individual, small group, or large group market in a State must offer to any individual or employer in the State all products that are approved for sale in the applicable market, and must accept any individual or employer that applies for any of those products.
For a small employer with one seriously ill person on a short roster, that is the single most load-bearing rule in the market.
It is also expressly qualified. The same rule makes the guarantee subject to further paragraphs, and that is where minimum group participation and minimum employer contribution requirements live. Those requirements are real, they are applied by issuers, and where a group cannot comply, the rule permits the issuer to restrict availability to a defined annual enrollment window rather than simply declining. The level of the requirement is not fixed federally for the whole market — it follows state law where a state sets one, and otherwise follows what issuers in that state customarily use. Guaranteed issue and participation are two halves of one accurate sentence, and either half on its own misleads.
A small Colorado employer is outside the federal employer mandate
The employer shared responsibility provisions reach applicable large employers only. The IRS states in Employer shared responsibility provisions that The vast majority of employers will fall below the ALE threshold number of employees and, therefore, will not be subject to the employer shared responsibility provisions.
On its companion page the agency adds that an employer below the threshold is not an applicable large employer for the year and is therefore not subject to those provisions or to the associated employer information reporting provisions either.
So a small Colorado employer that offers a plan is doing it voluntarily, which changes the frame of the whole decision. The question stops being whether you are compliant and starts being whether the plan does what you need it to do for the people on it.
The band that puts you in the small group market is Colorado’s, not Washington’s
Federal rules define a small employer by average employee count over the preceding calendar year and then let a state elect to raise that ceiling for its own market, which is precisely why this is a state-by-state question rather than one national line. Colorado’s band sits at C.R.S. § 10-16-102(61)(b)(II) in the 2026 edition of Title 10 — one to fifty eligible employees, operative since January 1, 2026.
This page names that band and stops there, because the floor, the ceiling, how eligible employees are counted and what a business does when only one person enrolls are each their own question with their own statutory answers. The Colorado state page is the place that holds the state-level picture.
Colorado runs its own marketplace, and it is not a state agency
Colorado operates its own marketplace under the name Connect for Health Colorado, verified on the exchange’s own site. Its legal description is different from its trading name: C.R.S. § 10-16-102(26) defines Exchange as the Colorado health benefit exchange created in article 22 of this title
.
The Division of Insurance draws the line on what it regulates in its own words on its Affordable Care Act Information page: It is not a state agency, but a separate, non-profit entity established by Senate Bill 200 in 2011. The Division of Insurance (DOI) does not regulate Connect for Health Colorado, but regulates the plans and health insurance carriers offered through the exchange.
The Small Business Health Options Program is a program operated by an Exchange through which a qualified employer gives employees access to qualified health plans, and because an Exchange may be established and operated either by a state or federally, SHOP is not one national program. What it looks like in a given state is a state-level fact, and the per-state answer for Colorado was not established by any source used for this page.
How the plan is funded changes which rules follow it
Fully-insured coverage puts the claims risk on the issuer, and the small group market’s federal requirements follow it — the essential health benefits package, guaranteed renewability and the single risk pool. A self-insured plan is different in kind: the employer carries the claims risk and pays claims from its own funds, typically contracting enrollment, claims processing and network access to a third party administrator.
Level-funding sits between the two in appearance and on the self-funded side in substance. The federal Departments describe it at FR Doc 2023-14238 as a type of self-funded arrangement in which the plan sponsor makes set monthly payments to a service provider to cover estimated claims costs, administrative costs, and premiums for stop-loss insurance for claims that surpass a maximum dollar amount beyond which the plan sponsor is no longer responsible for paying claims (attachment point). This funding mechanism or plan type, known as level-funding, is increasingly utilized by small employers in particular.
The consequence the Departments record is the one a first-time buyer needs: In the case of a level-funded plan, if the entire arrangement is treated as self-insured, the essential health benefit requirements would not apply.
That description sits in a proposed rule whose final version expressly declined to address the subject, so it is the Departments’ account of how the arrangement works and not a requirement anyone is under.
The network label describes how care is gated, not how rich the plan is
Network type is a separate axis from funding and from benefit richness, and the federal glossary keeps the four common labels short. An HMO usually limits coverage to doctors who work for or contract with it and generally will not cover out-of-network care except in an emergency. A PPO contracts with providers to build a network and costs less inside it, while still covering providers outside it at an additional cost. An exclusive provider organization, described in Health insurance plan & network types: HMOs, PPOs, and more, covers services only inside the plan’s network except in an emergency. A high deductible health plan carries a higher deductible than a traditional plan with a usually lower monthly premium, and it can be paired with a health savings account — which is why it is now more often called an HSA-eligible plan.
None of those labels tells you what the plan covers, and none of them tells you what it costs. They tell you where care is covered. Deciding between them, and deciding what sits alongside the medical plan in the way group dental does, is the part of the process worth spending time on. If this is the first plan the business has bought, the sequence is laid out on the first-time group health page.
The bottom line
A Colorado group health plan is coverage the employer buys as the policyholder and the employees take up through it. Whether it is a Colorado small group plan turns on the employer’s relationship to the premium and the tax treatment rather than on the product’s name, and that answer decides which rules follow the plan afterward.
Frequently asked questions
What makes coverage a Colorado small group plan?
Colorado answers it by the employer’s relationship to the premium and the tax treatment, not by the product’s name. Under C.R.S. § 10-16-105.2(1)(a), the article applies to a health benefit plan covering a small employer’s employees where the employer pays any portion of the premium or benefit, reimburses an employee for any portion of it, the plan is treated as part of a program for the federal tax purposes the statute names, or the plan is marketed to individual employees through the employer or at a place of business. Two carve-outs sit alongside it at C.R.S. § 10-16-105.2(1)(b) and C.R.S. § 10-16-105.2(1)(d).
Who is the policyholder on a group health plan?
The employer. Federal rating rules locate a small group by the group policyholder’s principal business address rather than by where each employee lives, which is one of the practical differences between group coverage and coverage a person buys for themselves. The employees obtain coverage through the group health plan the employer maintains.
Can a carrier turn our group down because someone on it is sick?
Employee health history does not gate whether the group can buy. Federal rules require an issuer offering coverage in the small group market to offer any employer in the state all products approved for sale in that market and to accept any employer that applies. The guarantee is expressly subject to further paragraphs of the same rule, which is where minimum participation and minimum employer contribution conditions live, so the two belong in the same sentence.
Does the federal employer mandate apply to a small Colorado employer?
The employer shared responsibility provisions reach applicable large employers. The IRS states that an employer below that threshold is not an applicable large employer and is therefore not subject to those provisions or to the associated information reporting for the year, and that the vast majority of employers fall below it. A small Colorado employer that offers coverage is doing so by choice.
Does Colorado run its own health insurance marketplace?
Yes. Colorado runs its own marketplace, Connect for Health Colorado, and the Division of Insurance states that it is not a state agency but a separate non-profit entity, which the Division does not regulate even though it does regulate the plans and carriers offered through it. Colorado law calls the same entity the Colorado health benefit exchange.
What does level-funded mean, and why does it matter here?
It is a self-funded arrangement paid for in set monthly amounts covering estimated claims, administration and stop-loss premium. The federal Departments describe it as increasingly used by small employers, and they record the consequence: where the whole arrangement is treated as self-insured, the essential health benefit requirements would not apply. That is a difference in what the plan must contain, not only in how it is paid for.
About the author
Nate Jones, CPCU, is the founder of Wexford Insurance and Wexford Health Insurance, an independent agency placing small-business group benefits in 9 states. Walks Colorado employers through what a group health plan actually is before anyone talks about price, because the question of whether a plan is a Colorado small group plan at all is the one that decides which rules follow it. Start with the Wexford Health Insurance quote form.