Sales Tax Calculator

Sales Tax Calculator (US)
Quickly calculate the sales tax and total price for your purchases.
Understanding US Sales Tax

In the United States, sales tax is a "point-of-purchase" tax that is added to the cost of certain goods and services. Unlike many other countries, it is typically added at the register rather than included in the shelf price.

Variable Rates

Rates vary significantly because they are determined at the state, county, and city levels. Some states like Oregon and Delaware have no state sales tax, while others can exceed 10% when local taxes are combined.

Logic & Formulas

The calculation is straightforward multiplication:

Tax Amount = Subtotal * (Tax Rate / 100)

Total Price = Subtotal + Tax Amount