10/15/2026
These are all terms for the same thing.
Marketplace = Obamacare = Affordable Care Act = ACA = Healthcare.gov
Marketplace is the government website/system that processes advanced premium tax credit & coverage applications for health insurance.
Obamacare is a colloquial term used as a way to associate the Affordable Care Act with Barack Obama, which was signed into law by President Barack Obama on March 23, 2010.
The Affordable Care Act (ACA) is the healthcare reform legislation signed into law in 2010 which was nicknamed Obamacare.
Healthcare.gov is the federally facilitated website that individual consumers can log onto and access health insurance coverage options in their state.