Reverse Sales Tax Calculator

$500.00 + 24% tax= $403.23 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)$500.00

Tax Rate (%)24%

Tax Amount$96.77

Original Price (before tax)$403.23

Calculation Steps

Final price with tax: $500.00

Convert tax rate to decimal: 24% ÷ 100 = 0.240

Calculate divisor (1 + tax rate): 1 + 0.240 = 1.240

Divide final price by divisor: $500.00 ÷ 1.240 = $403.23

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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 $500.00 with 24% tax rate, divide $500.00 by (1 + 24/100) to get the original price of $403.23. The tax amount is $96.77.