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Calculate pre-tax price from total amount (reverse calculation).
Instantly finds the original price and tax amount from a total.
No mode switching needed—just enter total and rate to get results.
Easily copy the net price or tax amount for your invoices or records.
See the Original Price, Tax Amount, and Total Paid in one view.
The Reverse Tax Calculator is designed to solve one specific problem: finding the original price when you only know the final total. Whether you are a business owner backing out tax from a gross receipt or a freelancer calculating your net income, this tool does the math instantly. Simply enter the total amount and the tax rate, and it will separate the base price (Net) from the tax portion.
Input the final price including tax.
Input the percentage tax rate (e.g., 13).
View the calculated Original Price and Tax Amount instantly.
Use this tool to find the original price (before tax) from a total amount.
at 13% rate