Income tax — a tax on money made from jobs and other sources — is the largest revenue source for the US government. Although originally controversial, it has become a key principle of the US tax code.

The United States has a progressive tax system, meaning that as your income increases, the portion of income that falls within the higher bracket is taxed at higher rates. Essentially your income is ...

President-elect Donald Trump and the incoming Republican Congress already have a big agenda set for them this year, as the 2017 Trump tax cuts are on track to expire. A full extension of the law would ...