ACA Health Insurance Marketplace

What Is the ACA Health Insurance Marketplace?

The Health Insurance Marketplace is a platform that offers insurance plans to individuals, families, and small businesses. The Affordable Care Act (ACA) established the Marketplace as a means to extend health insurance coverage to millions of uninsured Americans. Many states offer their own marketplaces, while the federal government manages an exchange open to residents of other states.

Key Takeaways

  • The Health Insurance Marketplace is a gateway for individuals, families, and small businesses to access health insurance.
  • It was created following the passage of the Affordable Care Act.
  • The Marketplace is available to those who don't have access to health insurance through employer-sponsored plans.
  • The Marketplace enables various insurers to compete for customers by offering a variety of plans based on cost and need.
  • A number of states have marketplaces and the federal government has an exchange available for residents of the states that don't have their own.

Understanding the ACA Health Insurance Marketplace

The Health Insurance Marketplace is a key element of the Affordable Care Act, a healthcare reform signed into law by President Barack Obama in 2010, also known as Obamacare. The law instructed states to set up their own exchanges where individuals or families without employer-sponsored coverage could compare plans. Many states, however, have chosen not to establish a marketplace and have joined the federal exchange.

The Marketplace facilitates competition among private insurers in a central location where people who do not have access to employer-sponsored insurance can find a suitable plan. Individuals can compare and apply for plans via the Marketplace during the open enrollment period. Typically, this period takes place in November and December of the year prior to the year in which the coverage will take effect. Consumers can apply for a special enrollment period in the case of a qualifying event such as the birth of a child, marriage or the loss of another insurance plan.

The Marketplace categorizes plans into four tiers: bronze, silver, gold, and platinum, in the order of least to greatest coverage. The highest tier, platinum, includes plans that cover approximately 90% of health expenses, but is also the most costly. Lower-income individuals and families can qualify for extra savings on all the health insurance plans offered on the exchange through premium tax credits and cost-sharing reductions.

ACA Health Insurance Marketplace Requirements

The Health Insurance Marketplace has requirements for individuals and families who use it, as well as for the insurance companies that offer coverage. To be eligible to buy coverage offered on the Marketplace, you must live in the United States and be a U.S. citizen or national. If you are covered by Medicare, you’re not eligible.

While the plans that insurers offer on the Marketplace can vary widely, the ACA requires that they must each satisfy 10 basic requirements or essential health benefits (EHBs). Many of the EHBs might seem like they would go without saying, but plans can skimp on basic coverage and some political opponents of the ACA have proposed eliminating EHBs since the passage of the ACA.

Required benefits include:

  • Ambulatory patient services
  • Emergency services
  • Hospitalization
  • Laboratory services
  • Mental health and substance use disorder services
  • Pregnancy, maternity, and newborn care
  • Prescription medications
  • Preventive and wellness services and chronic disease management
  • Pediatric services
  • Rehabilitative and habilitative services

The ACA does not require large, employer-sponsored insurance plans to cover any of the EHBs. Instead, the writers of the law felt that the Marketplace would apply competitive pressure that would force employer plans to comply with these basic mandates.

Special Considerations

Changes have been made to the ACA that have addressed some of the objections raised by its opponents, while still keeping the Marketplace open. For example, as part of the Tax Cuts and Jobs Act, in Dec. 2017 Congress removed a penalty individuals had to pay for not having health insurance, a requirement that many Republicans had opposed.

In March 2019, the Trump administration said that it would seek to repeal the entire Affordable Care Act. The Justice Department in a letter to a federal appeals court said it agreed with a federal judge in Texas who declared the healthcare law unconstitutional and added that it will support the judgment on appeal. The case went to the Supreme Court in 2020, and as of November 2020, the Supreme Court was still deliberating.

Then President Trump lost the 2020 election and was replaced by Joe Biden, who had helped President Obama pass the Affordable Care Act. Eight days after President Biden took office, he signed an executive order focused on strengthening the ACA, as well as Medicaid.

In addition to setting up a new special enrollment period to help people who lost insurance during the pandemic, the order signed on Jan. 28, 2021, focused on "rules and other policies that limit American's access to health care," ordering federal agencies to examine five areas and decide whether action is needed there:

  • Protections for people with pre-existing conditions
  • Work requirements and other limitations to access to Medicaid and the ACA
  • Policies undermining health insurance markets, including the Health Insurance Marketplace
  • Policies increasing the difficulty of enrolling in Medicaid and the ACA
  • Policies reducing affordability or financial assistance, for recipients or dependents
Article Sources
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  4. “Are You Eligible to Use the Marketplace?” Accessed Jan. 28, 2021.

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  6. United States Supreme Court. "Affordable Care Act." Accessed Jan. 28, 2021.

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