Reverse Sales Tax Calculator

$25.00 + 35% tax= $18.52 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)$25.00

Tax Rate (%)35%

Tax Amount$6.48

Original Price (before tax)$18.52

Calculation Steps

Final price with tax: $25.00

Convert tax rate to decimal: 35% ÷ 100 = 0.350

Calculate divisor (1 + tax rate): 1 + 0.350 = 1.350

Divide final price by divisor: $25.00 ÷ 1.350 = $18.52

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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 $25.00 with 35% tax rate, divide $25.00 by (1 + 35/100) to get the original price of $18.52. The tax amount is $6.48.