Sales Tax Calculator
Calculate sales tax, final price, discounts, and tax-inclusive amounts for US and worldwide purchases.
Calculate sales tax, final price, discounts, and tax-inclusive amounts for US and worldwide purchases.
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Calculating the final price of an item is not always as simple as looking at its advertised price. Sales tax, discounts, shipping charges, and other taxable fees can change the amount you actually pay at checkout.
Our Sales Tax Calculator helps you quickly calculate sales tax, pre-tax price, tax-inclusive price, discounts, shipping charges, and your final out-of-pocket cost. It can be used for shopping, budgeting, business pricing, invoices, online purchases, and everyday tax calculations.
The calculator is especially useful for users in the United States, where sales tax rates can vary between states, counties, cities, and other local jurisdictions. You can enter the applicable combined sales tax rate for your location or use a custom percentage for calculations in other countries and regions.
The calculator supports both adding sales tax to a price and extracting sales tax from a tax-inclusive total. This makes it useful whether you know the original price or only know the final amount shown on a receipt.
Results are estimates based on the price, tax rate, discount, and fees you enter. Actual tax obligations can vary according to local tax laws, product taxability, exemptions, and jurisdiction-specific rules.
Sales tax is a consumption tax generally added to the purchase price of taxable goods and services. In the United States, sales tax is commonly calculated as a percentage of the taxable purchase amount.
For example, if an item costs $100 and the applicable sales tax rate is 7.5%, the sales tax would be $7.50 and the final price would be $107.50.
Sales tax rates are not necessarily the same everywhere. A purchase made in one US location may have a different combined rate from a purchase made in another location because state and local taxes can vary.
You can calculate sales tax in just a few steps. Enter the purchase price, choose the appropriate tax rate, and optionally add a discount or taxable shipping and handling fee.
Enter the original price of the product or service before sales tax. For example, if an item costs $250, enter 250 in the price field.
Enter the applicable sales tax percentage for your location. For a US purchase, this may be the combined state and local rate applicable to the transaction.
If you already know your combined rate, enter it directly. You can also use the available state presets as a starting point and adjust the rate when a local tax applies.
Select Add Sales Tax when you know the original pre-tax price and want to calculate the final price.
Select Remove Sales Tax when you already know a tax-inclusive total and want to estimate the original price before tax.
You can apply either a percentage discount or a fixed-dollar discount before calculating the final taxable amount.
If taxable shipping or handling needs to be included in your calculation, enter the amount in the shipping and handling field.
The calculator displays the pre-tax subtotal, sales tax amount, discount savings, effective tax rate, and final out-of-pocket cost.
When you know the original price and the applicable tax rate, adding sales tax is straightforward.
For example, suppose an item costs $100 and the sales tax rate is 7.5%.
Sales tax: $100 × 7.5% = $7.50
Final price: $100 + $7.50 = $107.50
Sometimes you already know the final price, including sales tax, but want to determine how much of that amount represents the original price and how much represents tax.
This is commonly called a reverse sales tax calculation or tax-inclusive calculation.
For example, if the final price is $107.50 and the sales tax rate is 7.5%:
$107.50 ÷ 1.075 = $100.00
Therefore, the estimated pre-tax price is $100 and the included sales tax is $7.50.
This feature is useful when analyzing receipts, checking advertised tax-inclusive prices, calculating prices before tax, or determining the tax component of a completed purchase.
The basic sales tax formula uses the taxable purchase price and the applicable sales tax rate.
The final price can then be calculated as:
For example, at a 6.25% sales tax rate, a $200 purchase would generate $12.50 in sales tax and result in a total of $212.50.
Discounts can significantly change the amount subject to sales tax. Our calculator allows you to enter either a percentage discount or a fixed-dollar discount.
Suppose an item costs $200 and has a 10% discount.
Discount: $200 × 10% = $20
Discounted price: $200 − $20 = $180
If the applicable sales tax rate is 7.5%, the estimated sales tax on $180 would be $13.50, producing a final price of $193.50.
Actual tax treatment of discounts can vary depending on the seller, product, promotion, and applicable jurisdiction.
Some purchases include shipping or handling charges. Whether shipping is taxable depends on the applicable tax rules and the type of transaction.
When shipping or handling is taxable for your situation, you can enter the amount into the calculator to include it in the estimated taxable cost.
For example, if an item costs $100 and taxable shipping is $10, the taxable subtotal may be $110 before applying the sales tax rate.
Always verify whether shipping and handling are taxable in the jurisdiction that applies to your transaction.
The United States does not use one single nationwide sales tax rate. Sales tax rules can differ between states and local jurisdictions.
Depending on where a transaction takes place, the applicable rate may involve state, county, city, district, or other local taxes.
For this reason, the most accurate approach is to use the applicable combined rate for the location and transaction you are calculating.
Our calculator allows you to enter a custom rate so you can calculate the estimated tax for your specific purchase.
Sales tax can vary significantly across the United States. When using this calculator for a US purchase, enter the applicable rate for the specific destination or jurisdiction.
California transactions may involve state and local sales taxes. Use the applicable combined rate for the location of the purchase.
Texas purchases may be subject to state and local sales taxes. Enter the applicable combined rate for the transaction.
New York sales tax can include state and local components. Location-specific rates should be used when calculating a purchase.
Florida applies sales tax to many taxable purchases, with possible local components depending on the location.
Washington transactions can include state and local sales taxes. Use the appropriate rate for the transaction location.
Illinois sales tax can involve state and local taxes. The applicable rate depends on the location and transaction.
These examples are provided for informational context. Rates can change and local rates may differ, so verify the current rate before using the result for an actual purchase or business transaction.
Original price: $100
Sales tax rate: 7.5%
Sales tax: $7.50
Final price: $107.50
Original price: $500
Sales tax rate: 8.25%
Sales tax: $41.25
Final price: $541.25
Original price: $1,000
Sales tax rate: 6.25%
Sales tax: $62.50
Final price: $1,062.50
A tax-exclusive price is the amount before sales tax is added. A tax-inclusive price already contains the applicable tax.
In the United States, advertised retail prices are commonly displayed before sales tax, which means the final checkout amount can be higher than the displayed price.
A tax-inclusive calculation is useful when you already know the final amount and want to determine the underlying pre-tax price.
The effective sales tax rate represents the sales tax amount compared with the taxable amount used in the calculation.
This can help you understand the percentage of the taxable purchase represented by the calculated tax.
A sales tax calculator can be useful for consumers, online shoppers, freelancers, small businesses, retailers, ecommerce sellers, and anyone who needs to estimate the final cost of a taxable purchase.
Although the calculator is particularly useful for US sales tax calculations, it can also be used internationally when you know the applicable tax rate.
Different countries use different consumption-tax systems, including sales tax, value-added tax, goods and services tax, and other forms of indirect taxation. The terminology and calculation rules can vary.
Enter the appropriate percentage for your calculation and use the calculator to estimate the tax amount and final price.
For country-specific tax compliance, always verify the applicable rules with the relevant tax authority or qualified professional.
Calculate the sales tax amount and final price when you know the original pre-tax price.
Extract the estimated pre-tax price and tax amount from a tax-inclusive total.
Enter any sales tax percentage that applies to your purchase, location, or calculation.
Apply either a percentage discount or fixed-dollar discount before calculating the final cost.
Include shipping or handling charges when they are applicable to your taxable calculation.
Review the pre-tax amount, tax amount, discount savings, effective rate, and final out-of-pocket cost.
This calculator provides estimates for informational and planning purposes only. Sales tax rates, taxable products, exemptions, discounts, shipping rules, and local tax requirements can vary by state, county, city, jurisdiction, business type, and transaction. The calculator does not provide tax, legal, accounting, or financial advice and should not be used as a substitute for official tax information. Always verify the applicable sales tax rate and taxability rules with the relevant tax authority or qualified professional before making important business or financial decisions.
A sales tax calculator estimates the sales tax amount and final purchase price based on the original price and applicable tax rate.
Multiply the taxable purchase amount by the sales tax rate divided by 100. For example, $100 at 7.5% produces $7.50 in sales tax.
Calculate the sales tax first and then add it to the original pre-tax price. For example, $100 plus $7.50 tax equals $107.50.
Divide the tax-inclusive total by one plus the tax rate expressed as a decimal. For example, $107.50 divided by 1.075 equals $100.
Yes. Enter the applicable combined sales tax rate for the location and transaction you are calculating. US sales tax can vary by state and local jurisdiction.
No. Sales tax rates can vary between states and local jurisdictions. A purchase may be subject to state and additional local taxes depending on where the transaction occurs.
Yes. Enter a percentage or fixed discount and the calculator can estimate the resulting taxable amount and final price.
Yes. You can enter shipping or handling charges when they need to be included in your calculation. Whether shipping is taxable depends on the applicable jurisdiction and transaction.
A tax-exclusive price does not include sales tax, while a tax-inclusive price already contains the tax amount.
Yes. You can enter a custom tax rate for calculations in other countries and regions. However, different countries may use different tax systems and rules.
The mathematical calculation is based on the values you enter, but the applicable tax rate and taxability of a transaction must be verified for your specific location and purchase.
You can use it for estimates, pricing scenarios, budgeting, quotes, and general calculations. For tax filing, compliance, or official accounting records, verify the calculation with the applicable tax authority or qualified tax professional.