Under Obamacare, if you do not carry health insirance by a certain date, you will have to pay a % of your income to the Federal government. The Suprme Court and the Solicitor General call this a tax: Health reform: New taxes, fees and penalties - Jun. 28, 2012 Solicitor General Called Mandate a Tax - By Noah Glyn - The Corner - National Review Online The Obama's administration calls this a penalty: Obama camp: Mandate a penalty, not a tax - Washington Times With whom do you agree, and why? How is the other party wrong? Do you understand that there is a difference and why that difference matters?