Sales Tax Calculator

Multiply the price by the tax rate (as a decimal). For example, for a $50 item with 8.5% tax: $50 × 0.085 = $4.25 tax. Total = $54.25. Our calculator does this instantly.

Divide the total (tax-inclusive) price by (1 + tax rate as decimal). For example, if the total is $54.25 with 8.5% tax: $54.25 ÷ 1.085 = $50.00 pre-tax price. Use our reverse tax calculation mode.

The average combined state and local sales tax rate in the US is about 7.12%. Rates vary widely: some states have no sales tax (Oregon, Montana, Delaware, New Hampshire, Alaska), while others exceed 10% when combining state and local rates (Tennessee, Louisiana, Arkansas).

In the US, sales tax is typically added at checkout (not included in the listed price). In most other countries (EU, UK, Australia), prices usually include tax (VAT/GST). This calculator works both ways — you can calculate tax on a price or extract tax from an inclusive price.

Tax-exempt items vary by state but commonly include groceries, prescription medications, and clothing (in some states). Some states also exempt digital goods, medical devices, and items purchased for resale. Check your state's specific exemptions.