Free • Fast • Easy to Use

Sales Tax Calculator

Quickly calculate sales tax, the tax amount, and your final purchase price. Enter your price and sales tax rate to get an instant result.

Calculate Your Sales Tax

Purchase Price ($) Enter the price before sales tax.

Sales Tax Rate (%) Enter your applicable state and local sales tax rate.

Quick Tax Rate Select a common rate 0% 4% 5% 6% 6.25% 6.5% 7% 7.25% 8% 8.25% 8.875% 9% 9.5% 10% Use the applicable rate for your location.

Your Sales Tax Result

Original Price $0.00

Sales Tax $0.00

Total Price $0.00

A Simple Way to Calculate Sales Tax

Knowing the final price of an item before you pay can make budgeting easier and help you avoid surprises at checkout. Our free Sales Tax Calculator lets you quickly determine how much sales tax will be added to a purchase and what your final price will be.

Whether you are shopping online, comparing prices, planning a large purchase, running a small business, or checking an invoice, this online sales tax calculator gives you a quick estimate.

How to Use the Sales Tax Calculator

1. Enter the original purchase price.
2. Enter the applicable sales tax rate.
3. Click Calculate Sales Tax.
4. Review the sales tax and final price.

Sales Tax Formula

Sales Tax = Purchase Price × (Tax Rate ÷ 100)

The final price is:

Total Price = Purchase Price + Sales Tax

Example

If an item costs $100 and the sales tax rate is 8%, the sales tax is $8. The final purchase price is therefore $108.

Why Sales Tax Rates Matter

Sales tax in the United States can vary depending on the state, county, city, and other local jurisdictions. Because of this, the applicable sales tax rate may differ depending on where the transaction takes place.

Enter the rate that applies to your purchase to get a more useful estimate. For official tax calculations, always verify the applicable rate with the relevant tax authority or seller.

Frequently Asked Questions

How do I calculate sales tax?

Multiply the purchase price by the sales tax rate divided by 100. For example, $100 × 8% = $8 sales tax.

How do I calculate the total price after sales tax?

Add the sales tax to the original purchase price. A $100 purchase with $8 sales tax costs $108 in total.

Does sales tax vary by state?

Yes. State and local sales tax rates can vary, so the correct rate depends on the location and transaction.

Can I use this calculator for online purchases?

Yes. Enter the applicable sales tax rate to estimate the tax on an online purchase.

Is this Sales Tax Calculator free?

Yes. This calculator is free to use and does not require an account.

Calculate Your Sales Tax in Seconds

Skip manual calculations. Enter your purchase price and sales tax rate to instantly see your tax amount and final price. Use the result to plan your budget, compare purchases, and make more informed spending decisions.

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© Sales Tax Calculator. For estimation purposes only.