Tax Calculator
Calculate sales tax and find the total price including tax. Works with any tax rate.
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Enter your local sales tax rate
How to Calculate Sales Tax
Sales tax is calculated as a percentage of the purchase price. The formula is: Tax Amount = Price × (Tax Rate ÷ 100). Add the tax to the original price to get the total.
Understanding Tax Rates
Sales tax rates combine state, county, and city taxes. Some states have no sales tax (Alaska, Delaware, Montana, New Hampshire, Oregon), while others can exceed 10% in certain localities.
Common Tax Calculations
- 5% tax on $100: $100 × 0.05 = $5 tax, $105 total
- 7% tax on $100: $100 × 0.07 = $7 tax, $107 total
- 8.25% tax on $100: $100 × 0.0825 = $8.25 tax, $108.25 total
Frequently Asked Questions
Multiply the price by the tax rate percentage and divide by 100. For a $50 item with 8% tax: $50 × 8 ÷ 100 = $4 tax. Total: $50 + $4 = $54.