Reverse Sales Tax Calculator
Calculate the pre-tax price and sales tax amount from the total price including tax, given the tax rate.
Published by:
isCalculator Editorial Team
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How to use this tool?
How to Use the Reverse Sales Tax Calculator
- Enter Total Price: Type the full amount you paid, including sales tax (e.g., $107.50). Use a positive number.
- Enter Tax Rate: Type the sales tax percentage (e.g., 7.5 for 7.5%). Use a positive number or zero.
- Click "Calculate": Press the button to compute the results.
- Read the Results:
- Pre-Tax Price: The original price before tax was added.
- Sales Tax Amount: The tax portion of the total price.
Tip: Inputs must be positive numbers. The calculator automatically formats results to two decimal places (e.g., $100.00).
Previous Results
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Frequently Asked Questions
It calculates the pre-tax price and the sales tax amount from the total price including tax, given the tax rate.
Enter the total price including tax and the sales tax rate, then click Calculate.
Yes, the calculator uses the standard formula: Pre-tax price = Total price / (1 + tax rate/100).
