Reverse Sales Tax Calculator
$6.26 + 13% tax= $5.54 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.
Final price with tax: $6.26
Convert tax rate to decimal: 13% ÷ 100 = 0.130
Calculate divisor (1 + tax rate): 1 + 0.130 = 1.130
Divide final price by divisor: $6.26 ÷ 1.130 = $5.54
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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 $6.26 with 13% tax rate, divide $6.26 by (1 + 13/100) to get the original price of $5.54. The tax amount is $0.72.