Reverse Sales Tax Calculator

$125.00 + 16% tax= $107.76 Original Price (before tax)

See exactly how we calculated the pre-tax price from your tax-inclusive amount. Our step-by-step breakdown shows the precise mathematics behind removing sales tax from a total price.

Quick Reference

Final Price (with tax)$125.00

Tax Rate (%)16%

Tax Amount$17.24

Original Price (before tax)$107.76

Calculation Steps

Final price with tax: $125.00

Convert tax rate to decimal: 16% ÷ 100 = 0.160

Calculate divisor (1 + tax rate): 1 + 0.160 = 1.160

Divide final price by divisor: $125.00 ÷ 1.160 = $107.76

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How It Works

To find the original price before tax, divide the tax-inclusive amount by (1 + tax rate as decimal). This calculator handles the math for you, showing each step of the process.

The Formula

Original Price = Final Price ÷ (1 + Tax Rate%/100)

Example Calculation

For a final price of $125.00 with 16% tax rate, divide $125.00 by (1 + 16/100) to get the original price of $107.76. The tax amount is $17.24.