Every year, headlines focus on how many Americans selected an Affordable Care Act (ACA) Marketplace plan during Open Enrollment. While those numbers are important, they tell only part of the story.
The real measure of success is not how many people clicked “Enroll.” It is how many actually paid their premiums, maintained coverage, and remained insured throughout the year.
The 2026 enrollment cycle demonstrates why that distinction matters.
Initial enrollment reached approximately 23 million plan selections nationwide. At first glance, that appears to represent another strong year for the Marketplace. However, once insurers began reconciling enrollment files, it became apparent that a substantial number of consumers either failed to make their initial premium payment or terminated coverage shortly after enrollment.
Industry analysts now estimate that average effectuated enrollment for 2026 could fall to roughly 17.5 million people, and potentially as low as 16.5 million. That represents a decline of approximately 4.8 to 5.8 million covered lives compared with 2025.
Why Did So Many People Drop Off?
Several factors contributed to the decline.
The expiration of the enhanced premium tax credits significantly increased monthly premium costs for many consumers. Although subsidies continue for many lower-income households, millions of enrollees experienced substantially higher out-of-pocket premiums than they paid in previous years.
When premiums rise sharply, consumers often do one of three things:
- They never make their first month’s premium payment.
- They discontinue coverage after only a few months.
- They move to lower-cost Bronze plans with higher deductibles and greater financial exposure.
The result is a sizable gap between “plan selections” and people who are actually insured.
Why Effectuated (Paid the first month’s premium) Enrollment Matters
Insurance companies set premiums based on expected enrollment and expected medical claims.
When healthier individuals fail to effectuate coverage while people with greater healthcare needs remain enrolled, the risk pool becomes less balanced. Claims costs increase faster than premium revenue.
That directly affects an insurer’s Medical Loss Ratio (MLR), which measures the percentage of premium dollars spent on healthcare services rather than administration or profit.
A higher MLR may sound positive because more dollars are being spent on patient care. However, when the ratio rises because premium revenue falls while medical claims remain high, insurers experience financial pressure.
That often leads to:
- Higher premiums the following year
- Reduced plan offerings
- Narrower provider networks
- Greater insurer caution when entering or remaining in Marketplace regions
In other words, enrollment instability today can become higher premiums tomorrow.
A Lesson for Policymakers
The ACA Marketplace has unquestionably expanded access to health insurance.
But maintaining stable coverage is just as important as generating new enrollments.
Policies that improve affordability, encourage continuous coverage, and reduce unnecessary disenrollment will strengthen the Marketplace far more than simply increasing initial sign-ups.
The goal should not be maximizing enrollment during Open Enrollment.
The goal should be maximizing continuous coverage throughout the entire year.
What This Means for Employers
For many small employers, Marketplace instability reinforces the importance of exploring all available coverage options.
Employer-sponsored coverage, premium assistance programs, association health plans, level-funded arrangements, and innovative benefit strategies may provide more predictable and sustainable solutions for both employers and employees.
Organizations like TexHealth are working to help small businesses navigate these options, improve affordability, and reduce the number of Texans who become uninsured because coverage simply became too expensive.
Stable coverage benefits everyone, employees, employers, healthcare providers, insurers, and ultimately the healthcare system itself.
The lesson from 2026 is clear: enrollment is only the beginning. The real success comes when people can afford to stay insured.