Tax & Accounting Guides

Learn how to use Calcimator's income tax calculator to estimate your federal tax liability, understand your tax bracket, and plan your withholding.

Learn how to use Calcimator's sales tax calculator to find the tax amount on any purchase and determine the pre-tax price from a total.

Demystify the US federal tax bracket system and learn why moving into a higher bracket doesn't mean all your income is taxed at that rate.

Learn the difference between marginal and effective tax rates, how tax brackets actually work, and why most people misunderstand how much they really pay in taxes.