Sales Tax Calculator
Add sales tax to a price or reverse-calculate the pre-tax amount.
$
%
Total (with tax)
$54.00
Tax: $4.00
Sales Tax Formula
Add tax: Total = Price × (1 + Tax%)
Remove tax: Price = Total ÷ (1 + Tax%)
Remove tax: Price = Total ÷ (1 + Tax%)
US State Sales Tax Rates (2025)
| State | State Rate | With Avg. Local |
|---|---|---|
| California | 7.25% | ~8.8% |
| Texas | 6.25% | ~8.2% |
| New York | 4.0% | ~8.5% |
| Florida | 6.0% | ~7.1% |
| Oregon | 0% | 0% |
Rates vary by locality. Verify current rates for your area.
Frequently Asked Questions
How do I calculate sales tax?
Multiply the price by the tax rate (as a decimal) and add it to the original price. For example, 8% tax on $50: $50 × 0.08 = $4 tax, total = $54.
How do I find the price before tax?
Divide the total (tax-inclusive) price by (1 + tax rate). For example, $54 total at 8% tax: $54 ÷ 1.08 = $50 original price.
What is the sales tax rate in my state?
US sales tax varies by state, from 0% (Oregon, Montana, Delaware, New Hampshire) to over 9% (California, Tennessee). Some cities add local taxes on top of state rates.
What's the difference between tax-inclusive and tax-exclusive?
Tax-exclusive means tax is added on top of the listed price (common in the US). Tax-inclusive means the tax is already included in the listed price (common in Europe and VAT countries).