The Patient Protection and Affordable Care Act (PPACA), commonly termed the Affordable Care Act (ACA) or "Obamacare", is a federal statute which was signed into law by President Barack Obama on March 23, 2010. Due to this law impacting so many people, there are a number of IRS websites providing information:
TaxAct's Healthcare blog guides taxpayers through the tax implications of the Affordable Care Act. It offers free resources to guide Americans through the tax law changes in the Patient Protection and Affordable Care Act of 2010 (ACA).
Note that any link in the information above is updated each year automatically and will take you to the most recent version of the webpage or document at the time it is accessed.