Forbes contributors publish independent expert analyses and insights. The Old South hated the tariff—but could it have been a “cause” of the civil war, given how the North rammed protective tariffs ...

Income tax is the most important revenue stream for the federal government, which allows it to function every year. The history of income tax in the United States has a deep meaning originating from ...

President Abraham Lincoln signed the Revenue Act of 1861, levying the first income tax on Americans to help fund the Union’s Civil War effort.= It was only a flat tax of 3% on people making over $800 ...

The state of Washington is set to enact a law that will tax income over $1 million, marking a major break from its history of not having income tax and becoming the latest state to implement a ...