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.

New IRS data published for tax year 2004 show the code was more progressive in 2004 than it was in 2000. That trend also sheds light on the surge of revenue that cut the federal deficit so sharply in ...

Republican Ohio Sen. Rob Portman appeared on Fox & Friends on Tuesday where he criticized President Barack Obama for claiming that successful small businesses have to thank public sector projects for ...