This tool runs in your browser. None of your data is saved or sold.
Reverse Sales Tax Calculator
Back out pre-tax price from a tax-inclusive total.
About This Calculator
When a receipt shows a total including tax and you want to know the pre-tax price, reverse sales tax calculation gives you the answer. This calculator is also useful for bookkeeping, expense reporting, or checking whether a price was correctly tax-inclusive.
Estimates only — not financial, tax, legal, or investment advice. Verify important results with a qualified professional before making decisions.
pre-tax = tax-inclusive total ÷ (1 + rate); tax amount = total − pre-tax
Related calculators: Sales Tax Calculator, VAT Calculator, Discount Calculator, Pricing Calculator