Whether or not an individual or family is eligible for a premium Subsidy, a Tax Credit or Medicaid depends on whether their annual household income falls within or under a certain percentage of the Federal Poverty Level. The Federal Poverty Level (FPL) is defined as a uniform measure of income that is adjusted for inflation and released every year by the Department Of Health And Human Services (HHS). Below is a convenient chart to determine where you sit on the FPL.
As a refresher, if you earn between 100% and 400% of the FPL you may be eligible for a federal premium subsidy.
If you earn under 250% of the FPL, you may be eligible for a tax credit to reimburse you for your insurance-related out-of-pocket expenses from the prior year.
If you earn 100% of the FPL or under and you reside in a state that did not expand the Medicaid eligibility requirements, you may be eligible for Medicaid.
If you earn 133% of the FPL or under, which actually amounts to 138% of the FPL due to the way that the income levels are calculated, and you reside in a state that did expand the Medicaid eligibility requirements, you may be eligible for Medicaid.
See Obamacare/ACA Plans and rates on your 2015 income level.