Not all states tax income the same. See how state income tax rates compare, how flat and progressive systems work and what ...

Kelly Phillips Erb is a Forbes senior writer who covers tax. Author’s note: The standard deduction amounts, state and local tax (SALT) caps, and maximum amount of the child tax credit have been ...

Marginal vs. effective tax rates are two ways to express the percentage of your income that goes to tax. But they're each used for very different purposes.

Effective tax rate is your average tax rate as a percentage of total income. Marginal tax rate is the tax on your highest dollar earned, not your total income. Historically, top marginal rates have ...