Yes. Generally, people must have an annual income at least as high as the federal poverty level in order to qualify for marketplace subsidies. In states that have not expanded Medicaid eligibility, that leaves poor adults with no access to financial help for health coverage. However, during 2021 only, people who receive UI benefits during the year and who live in non-expansion states can receive a premium tax credit and cost-sharing subsidies even if their annual income is below the federal poverty level.
Other eligibility rules for marketplace subsidies continue to apply, however. To be eligible for subsidies, you also must be a US citizen or legally residing in the US, you cannot be incarcerated, and you cannot be eligible for other subsidized Minimum Essential Coverage, such as Medicaid, CHIP, Medicare, or employer-sponsored health coverage that meets standards for affordability and minimum value.