Every year, working Americans must fill out their income taxes on or before the April 15 deadline. Those who are self-employed may need to complete their taxes more often. Self-employed individuals do ...

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.

Troy Segal is an editor and writer. She has 20+ years of experience covering personal finance, wealth management, and business news. Amanda Bellucco-Chatham is an editor, writer, and fact-checker with ...