To calculate your effective tax rate, you need two numbers: the total amount you paid in taxes and your taxable income for ...

The sales tax you pay depends on the state where you made your purchase. Use our free sales tax calculator below to estimate your sales tax.

The alternative minimum tax (AMT) calculation determines whether a taxpayer must pay an additional amount beyond their regular income tax liability. To calculate AMT, taxable income is adjusted by ...

Learn how to calculate your effective tax rate using Microsoft Excel, what income tax rates to apply to your earned income, and what tax percentage applies to each span.

Using the information on your paycheck stub, you can estimate your tax refund for the year (or how much you'll owe). Here's how.