Sales Tax Calculator

Calculate the sales tax and total price of an item, or reverse-calculate tax from the final price with our free and easy-to-use tool.

Add Sales Tax Reverse Sales Tax

Price Before Tax ($)

Sales Tax Rate (%)

Sales Tax

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Total Price

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About the Sales Tax Calculator

The Sales Tax Calculator from TechnoCodex is a simple and powerful tool for consumers and business owners. Whether you’re calculating the final price of a purchase or trying to determine the original price before tax, our tool provides instant and accurate results.

How to Use the Calculator

This tool has two main functions:

Add Sales Tax: Use this tab when you know the price before tax. Enter the pre-tax price and the local sales tax rate to find out the tax amount and the final price.
Reverse Sales Tax: Use this tab when you know the total price (including tax). Enter the final price and the sales tax rate to find out how much of your purchase was tax and what the original price was.

Frequently Asked Questions (FAQs)

What is sales tax?
Sales tax is a consumption tax imposed by a government on the sale of goods and services. It is typically calculated as a percentage of the retail price and collected by the retailer from the consumer.

Is this tool free to use?
Yes, this Sales Tax Calculator is 100% free. All calculations are performed in your browser, and we do not store any of your financial data.

Why do sales tax rates differ?
Sales tax rates vary widely by jurisdiction. Rates are set by state, county, and city governments, which is why the tax you pay can be different in a neighboring town.