Sales Tax Calculator
Compute sales tax, VAT, or GST for retail transactions. Enter the item price and tax rate to find the exact tax added, or calculate backwards to extract the net pre-tax price from a tax-inclusive total.
How to calculate: $75.00 purchase with 8.25% sales tax
Adds state/local sales tax rate to the retail product base price.
Sales Tax Amount: $6.19
About Sales Tax Calculator
Compute sales tax, VAT, or GST for retail transactions. Enter the item price and tax rate to find the exact tax added, or calculate backwards to extract the net pre-tax price from a tax-inclusive total.
Primary Purpose: Calculate sales tax or determine pre-tax price from total
How to Use the Sales Tax Calculator
- 1Enter Amount and Tax Rate (%).
- 2Select whether the entered price is Pre-Tax or Tax-Inclusive.
- 3Read the exact tax dollar amount and total.
Formula & Methodology
Adds state/local sales tax rate to the retail product base price.
Real-World Worked Examples
$75.00 purchase with 8.25% sales tax
Frequently Asked Questions
How do you reverse calculate pre-tax price?
Divide the total tax-inclusive price by (1 + Tax Rate / 100). For example, $108 with 8% tax is $108 / 1.08 = $100 base price.
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