For 2014, the flat fee is $95 per adult and $47.50 per child, up to $285 per family. Or the penalty could be 1% of family income, if that results in a larger fine. (Income is defined as total income above the filing threshold, which is $10,000 for an individual and $20,000 for a family in 2013.)
So a person making $50,000 would be subject to a $400 penalty, while a couple earning that amount would each pay $300.
By 2016, the flat fees grow to $695 per adult and $347.50 per child or 2.5% of family income, whichever is greater. By then, the average premium for bronze coverage is expected to hit as much as $5,000 for an individual and $12,500 for a family.