Marketplace Health Insurance refers to health plans available for purchase through the Health Insurance Marketplace, a service that helps individuals and families find and enroll in affordable health coverage. Established by the Affordable Care Act, these marketplaces offer a variety of plans that meet specific coverage standards. Individuals can compare different insurance options based on factors like premiums, deductibles, and out-of-pocket costs. Depending on income, some may qualify for financial assistance to lower their monthly payments. Enrollment typically occurs during an annual open enrollment period, with special enrollment options available for qualifying life events.