Reverse Sales Tax Calculator

$8000.00 + 8% tax= $7407.41 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)$8000.00

Tax Rate (%)8%

Tax Amount$592.59

Original Price (before tax)$7407.41

Calculation Steps

Final price with tax: $8000.00

Convert tax rate to decimal: 8% ÷ 100 = 0.080

Calculate divisor (1 + tax rate): 1 + 0.080 = 1.080

Divide final price by divisor: $8000.00 ÷ 1.080 = $7407.41

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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 $8000.00 with 8% tax rate, divide $8000.00 by (1 + 8/100) to get the original price of $7407.41. The tax amount is $592.59.