Here's what you should know about income tax, what it is, how it works, how to calculate it and which states don't have it.

In a perfect world, the income you receive would be all yours to keep. However, the tax man is on his way and any dollar you earn is subject to a tax bill. But what is taxable income? Is it everything ...

Your marginal tax rate is the highest tax rate you’ll pay on your income, based on your federal income tax bracket. Learn more about this tax rate. When thinking about federal income taxes, many ...

Learn what Net Income After Taxes (NIAT) means, how it's calculated, and see examples to understand this key financial metric ...

The Internal Revenue Service (IRS) in the United States employs a fundamental concept known as "combined income" to ascertain the taxable portion of your Social Security benefits. Grasping how this ...

After decades of working and contributing to the Social Security system, many retirees assume that the benefits they've earned are exempt from federal income tax — but unfortunately, that's not always ...

Income refers to money, property or services you receive, typically in return for some service rendered or goods sold. Typical sources of income can include your pay as an employee, your earnings as a ...