Reverse Sales Tax Calculator

$1000.00 + 33% tax= $751.88 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)$1000.00

Tax Rate (%)33%

Tax Amount$248.12

Original Price (before tax)$751.88

Calculation Steps

Final price with tax: $1000.00

Convert tax rate to decimal: 33% ÷ 100 = 0.330

Calculate divisor (1 + tax rate): 1 + 0.330 = 1.330

Divide final price by divisor: $1000.00 ÷ 1.330 = $751.88

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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 $1000.00 with 33% tax rate, divide $1000.00 by (1 + 33/100) to get the original price of $751.88. The tax amount is $248.12.