Reverse Sales Tax Calculator

$2.50 + 19% tax= $2.10 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)$2.50

Tax Rate (%)19%

Tax Amount$0.40

Original Price (before tax)$2.10

Calculation Steps

Final price with tax: $2.50

Convert tax rate to decimal: 19% ÷ 100 = 0.190

Calculate divisor (1 + tax rate): 1 + 0.190 = 1.190

Divide final price by divisor: $2.50 ÷ 1.190 = $2.10

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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 $2.50 with 19% tax rate, divide $2.50 by (1 + 19/100) to get the original price of $2.10. The tax amount is $0.40.