Reverse Sales Tax Calculator
Calculate reverse sales tax from your own entered figures.
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Currency: Amounts are calculated in the currency you select; this site does not convert between currencies and does not use live exchange rates.
What this tool does
Calculate reverse sales tax from your own entered figures. Uses your entered combined local tax rate; not a jurisdiction tax lookup.
How to use the Reverse Sales Tax Calculator
- Enter or select tax-inclusive price.
- Enter or select sales tax (%).
- Read the calculated result; change any measurement to compare alternatives.
Formula
pre-tax=total/(1+rate/100); tax=total−pre-tax
- amount
- Tax-inclusive price
- rate
- Sales tax (%)
Uses your entered combined local tax rate; not a jurisdiction tax lookup.
Worked example
For reverse sales tax calculator, the following measurements illustrate the exact method: Tax-inclusive price: 100; Sales tax (%): 8.
Inputs
- Tax-inclusive price100
- Sales tax (%)8
Result
- Pre-tax price$92.59
- Sales tax$7.41
Results explained
- Pre-tax price
- Pre-tax price from the formula above. Uses your entered combined local tax rate; not a jurisdiction tax lookup.
- Sales tax
- Sales tax from the formula above. Uses your entered combined local tax rate; not a jurisdiction tax lookup.
Frequently asked questions
pre-tax=total/(1+rate/100); tax=total−pre-tax
Uses your entered combined local tax rate; not a jurisdiction tax lookup.
No. All numbers are entered by you or come from the dated reference table shown on this page; calculations run locally.
This is an estimate, not financial, tax or legal advice. Verify the inputs and output with official sources and a qualified professional.
Check period consistency, currency, percentage inputs and the assumptions: Uses your entered combined local tax rate; not a jurisdiction tax lookup.