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.

Forbes contributors publish independent expert analyses and insights. David John Marotta is a financial advisor covering financial planning. This article is more than 10 years old. Most Americans ...

(CBS News) The United States tax code is already "extraordinarily progressive" and should be restructured, Senate Republican Leader Mitch McConnell said, noting that more than two-thirds of the money ...

Republicans have embraced a new test for tax reform, one that could add to the already immense difficulty of passing legislation: They will say their reform bill must make the tax code even more ...

The most important tax reform metric for liberals and Democrats, besides perhaps the total level of federal taxation, is the progressivity of the tax code. They want to make sure that tax reform is ...