Reverse Sales Tax Calculator

$1600.00 + 11% tax= $1441.44 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)$1600.00

Tax Rate (%)11%

Tax Amount$158.56

Original Price (before tax)$1441.44

Calculation Steps

Final price with tax: $1600.00

Convert tax rate to decimal: 11% ÷ 100 = 0.110

Calculate divisor (1 + tax rate): 1 + 0.110 = 1.110

Divide final price by divisor: $1600.00 ÷ 1.110 = $1441.44

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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 $1600.00 with 11% tax rate, divide $1600.00 by (1 + 11/100) to get the original price of $1441.44. The tax amount is $158.56.