Participation Requirements: Insurers may require a minimum percentage of eligible employees to enroll (e.g., 51%).
Contribution Requirements: Employers may be required to pay a minimum share of premiums (e.g., 50%).
If the above are not met, insurers can decline coverage.
Self-employed individuals (groups of one) are not always guaranteed coverage unless state law requires it. This is where ACA Marketplace would be beneficial.
ACA Open enrollment is November 1st through December 15th for a January 1st Start Date.