Reverse Sales Tax Calculator

$160.00 + 12% tax= $142.86 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)$160.00

Tax Rate (%)12%

Tax Amount$17.14

Original Price (before tax)$142.86

Calculation Steps

Final price with tax: $160.00

Convert tax rate to decimal: 12% ÷ 100 = 0.120

Calculate divisor (1 + tax rate): 1 + 0.120 = 1.120

Divide final price by divisor: $160.00 ÷ 1.120 = $142.86

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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 $160.00 with 12% tax rate, divide $160.00 by (1 + 12/100) to get the original price of $142.86. The tax amount is $17.14.