Example
At a 7% tax rate, a $100 pre-tax price has $7 tax and a $107 total.
Money
Sales Tax Calculator
Add sales tax to a price or find the pre-tax price and tax within a total.
● ToolEnter your information below
Price before tax$100.00Sales tax$7.00Total price$107.00
Enter the rate that applies to your purchase. This calculator does not look up local tax rates.
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How this tool gets the answer
What it calculates
Add sales tax to a price or find the pre-tax price and tax within a total.
Method
Add sales tax to a price or find the pre-tax price and tax within a total. The tool applies the displayed financial assumptions and reports an estimate for planning. Change one assumption at a time to understand what drives the result. The worked example—At a 7% tax rate, a $100 pre-tax price has $7 tax and a $107 total.—shows the kind of input and outcome this page is designed to handle.
Keep in mind
Actual rates, fees, taxes, market returns, underwriting rules, and provider calculations may differ. This limitation is especially important when using the sales tax calculator for a consequential or shared decision.
Page owner: Anchor Apps LLC · Calculation and content last verified August 9, 2026.