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.

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 ...

Your business must pay taxes. Depending on the business form you use, such as a C corporation or LLC, income tax must be paid by either the company or the owner. In addition, you must pay employment ...

Enter household income you received, such as wages, unemployment, interest and dividends. Choose the filing status you use when you file your tax return Input the total of your itemized deductions, ...