What Is Changing in Colorado Group Health Insurance in 2026?

Overview – Colorado group health insurance is changing in 2026. Rising healthcare costs, new small-group rules, and growing interest in level-funded health plans are giving employers more choices, but also making those choices more complicated.

For small businesses, the key question is no longer simply which carrier offers the lowest premium. Employers increasingly need to compare different ways of funding coverage, understand how each option handles risk, and consider what employees will actually pay when they use the plan.

In this article, we’ll explain the major changes affecting Colorado employers in 2026, how traditional fully insured and level-funded plans differ, and what small businesses should review before their next renewal.

2026 Is a Turning Point for Colorado Group Health Insurance

If you own or manage a small business in Colorado, you may have noticed that choosing group health insurance is no longer as straightforward as comparing a few traditional plans and renewing the best one.

The Colorado health insurance market is changing. Costs continue to put pressure on employers, Colorado changed the definition of a small group in 2026, and more businesses are considering alternatives such as level-funded health plans.

For Colorado employers, the important question isn’t simply, “What does health insurance cost?”

It’s becoming:

Which type of health plan makes the most sense for our employees, our budget and the way our business uses healthcare?

That is a more complicated question, but it can also create opportunities for employers willing to compare their options.

Why Is Colorado Group Health Insurance Changing?

There isn’t one law or one insurance company driving the change.

Healthcare costs continue to rise. State and federal regulations affect how plans are designed and priced. Employers are trying to offer competitive benefits without allowing health insurance to consume an ever-larger part of their operating budget.

At the same time, the market itself has become more diverse.

Colorado employers can obtain coverage through traditional fully insured group plans or consider self-funded arrangements. Colorado Legislative Council describes self-funded plans as arrangements in which an employer assumes the risk for health benefit claims, often using stop-loss insurance to limit exposure to unusually high claims.

For smaller employers, that evolution has helped make Colorado level-funded health plans an increasingly important option.

What Changed for Colorado Small Group Health Insurance in 2026?

One of the biggest changes is surprisingly simple: Colorado changed the size of what legally qualifies as a small group.

Beginning January 1, 2026, Colorado generally defines a small employer for health insurance purposes as an employer with 1 to 50 eligible employees. Previously, Colorado’s small-group market extended through 100 employees.

Employers with 51 to 100 employees that already had small-group coverage before 2026 have transitional options. Under Senate Bill 24-073, qualifying employers can remain in the small-group market for a period of up to five years under specified conditions or elect to move into the large-group market.

For businesses with fewer than 51 employees, the practical takeaway is simpler:

Colorado’s small-group market is now more clearly focused on genuinely small employers.

And those employers should no longer assume a traditional fully insured plan is automatically their only reasonable choice.

How Do Traditional Fully Insured Plans Work?

With a traditional fully insured small-group plan, the employer pays a fixed premium to an insurance carrier. The insurer assumes the financial risk for covered medical claims.

These plans remain an important option for many Colorado businesses.

ACA rules provide significant protections in the small-group market. Health status and claims history generally cannot be used to set premiums for a traditional ACA-compliant small-group plan. Colorado Legislative Council notes that small-group premiums use modified community rating rather than being based on the group’s medical claims history.

That can be particularly valuable for a company whose employees have significant ongoing medical needs.

The tradeoff is that a healthy group may receive relatively little financial benefit from having lower claims than another group.

That is one reason employers have become more interested in level funding.

What Is a Level-Funded Health Plan?

A level-funded plan combines features of traditional insurance and self-funding.

The employer makes predictable monthly payments that generally cover expected claims, administrative costs and stop-loss protection. Stop-loss insurance helps protect the employer when covered claims exceed defined levels.

CMS explains that employers using self-funded arrangements can purchase stop-loss coverage to protect against unusually high individual or aggregate claims.

The appeal for a small business is straightforward: a healthier employee group may be able to obtain more favorable pricing than it would through a traditional community-rated small-group plan.

Depending on the specific contract, an employer may also be eligible to receive some portion of unused claims funding when actual claims come in below projections.

However, level funding is not simply traditional health insurance with a different payment schedule.

The group’s medical risk can be considered when the stop-loss carrier evaluates and prices the arrangement. A company with substantial ongoing claims may receive less attractive pricing or may find that level funding isn’t a good fit.

That distinction is important.

Why Are More Small Businesses Considering Level-Funded Plans?

For the right group, level funding can potentially provide several advantages:

• Lower overall healthcare costs
• Predictable monthly funding
• Protection against large claims through stop-loss coverage
• Greater visibility into how the group’s claims affect costs
• The possibility of receiving a portion of unused claims funding, depending on the arrangement

But the real appeal is not that level-funded plans are automatically “better.”

They allow certain employers to be evaluated differently.

A relatively healthy company with 20 employees, for example, may have a very different healthcare risk profile from another company with 20 employees. Traditional small-group insurance largely pools that risk through community rating. A level-funded arrangement can take more of the individual group’s experience into consideration.

Sometimes that produces meaningful savings.

Sometimes it doesn’t.

That is why Preferred Insurance recommends comparing the markets rather than beginning with a predetermined answer.

Are Level-Funded Plans Riskier for an Employer?

There is additional complexity, but level-funded plans are specifically designed to make self-funding more practical for smaller companies.

Stop-loss coverage provides protection against claims exceeding defined limits. However, the details matter.

Employers should understand:

• How claims funding is calculated
• The specific and aggregate stop-loss provisions
• What happens when claims are higher than projected
• Whether and how unused claims funds are returned
• How renewal rates are determined
• The provider network
• Prescription coverage
• Deductibles and employee out-of-pocket costs

A low initial premium isn’t much of a bargain if the network doesn’t work for your employees or the plan creates an unpleasant surprise at renewal.

Health insurance should be evaluated as a complete financial and employee-benefits decision, not a monthly premium contest.

What About Businesses With 50 or More Employees?

There are two different “50 employee” rules that are easy to confuse.

Colorado’s small-group insurance definition generally ends at 50 eligible employees beginning in 2026. Separately, the Affordable Care Act uses a federal definition called an Applicable Large Employer, or ALE.

An employer generally becomes an ALE when it averaged at least 50 full-time employees, including full-time-equivalent employees, during the previous calendar year. ALEs are subject to the ACA’s employer shared-responsibility requirements.

The calculation is more complicated than simply counting names on payroll, particularly when part-time and seasonal employees are involved.

An employer approaching 50 employees should therefore review its situation before making assumptions about either its insurance-market classification or its ACA responsibilities.

Why Does This Matter to a Colorado Business Owner?

Because health insurance is one of the few business expenses that affects your finances, your employees’ finances, recruiting, retention and employee satisfaction at the same time.

And the market now offers fundamentally different ways of financing that benefit.

The wrong question is:

“Which insurance company has the cheapest plan?”

Better questions are:

Should we remain fully insured or investigate level funding?

How much risk are we comfortable assuming?

Do our employees have doctors, hospitals or prescriptions that make one network better than another?

What will employees actually pay when they use the plan?

What is likely to happen at renewal?

Those questions require more than pulling a few prices from a spreadsheet.

They require understanding how the different markets work.

A Good Year to Review Your Group Health Strategy

More than half of Coloradans now receive their health insurance through an employer, according to the 2025 Colorado Health Access Survey. For a small business, that makes health coverage much more than another operating expense. It is a major part of the compensation package employees depend on.

The changes taking place in Colorado don’t necessarily mean you should change your health plan.

They mean you should make sure you’re comparing the right options.

An employer that has stayed with the same fully insured structure for years may discover that level funding deserves a look. Another business may compare the alternatives and conclude that traditional fully insured coverage still provides exactly the stability its employees need.

Either can be the right answer.

The important part is making the decision based on your company rather than doing what worked five years ago.

You Don’t Have to Become a Health Insurance Expert

Most business owners have better things to do than study stop-loss attachment points, ACA classifications and carrier underwriting rules.

Fortunately, you don’t need to.

Preferred Insurance has helped Colorado businesses navigate group health insurance for more than 30 years. As an independent local broker, our job is to compare the available options, explain the tradeoffs in plain English and help you determine which approach makes sense for your company and employees.

Sometimes that means staying with your current plan.

Sometimes it means changing carriers.

And sometimes it means discovering an entirely different way to fund your employee health benefits.

Before your next renewal, conact Preferred Insurance and let our group health insurance experts compare your options. A conversation now could uncover choices you didn’t know your business had.