Sales Tax Calculator
Add sales tax to a price to get the total your customer pays.
Enter your values and calculate to see the result.
Formula used
Tax amount = Price × (Tax rate ÷ 100)
Total = Price + Tax amount
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Worked example
Price before tax: $120 Sales tax rate: 8.25%
Tax amount: $120 × (8.25 ÷ 100) = $9.90
Total price: $120 + $9.90 = $129.90
Frequently asked questions
How is sales tax calculated?
Multiply the pre-tax price by the tax rate as a decimal (rate ÷ 100), then add that amount back to the original price. The result is the total the customer pays.
Should I enter the tax rate as a percent or a decimal?
Enter it as a percent — for example, 8.25 for an 8.25% tax rate. The calculator divides by 100 for you.
Does this include local or combined tax rates?
It adds whatever single rate you enter. If your area combines state, county, and city tax, add them together first (for example, 6 + 1.5 + 0.5 = 8%) and enter the combined rate.
Is sales tax the same as VAT?
No. Sales tax is charged at the point of sale on the final price, while VAT is collected at each stage of production. Use this calculator for sales-tax-style rates applied to a sticker price.