Sales Tax Calculator
Calculate sales tax on a purchase, or work backward to find the pre-tax price from a total receipt amount.
Total price
$91.16
What Your Result Means
In "Add tax" mode, the total price shows what you'll actually pay at checkout. In "Find pre-tax price" mode, the base price shows what the item cost before tax was applied - useful for expense reports or checking a receipt.
How It Is Calculated
Total Price = Price × (1 + Tax Rate / 100)
Pre-Tax Price = Total Price / (1 + Tax Rate / 100)
Worked Example
An $85 item with 7.25% sales tax costs $91.16 total. Conversely, a $91.16 total with 7.25% tax implies an $85.00 pre-tax price.
Important Assumptions
- Uses the tax rate you enter - actual rates vary by state, county, and city, and by product category.
Frequently Asked Questions
- What sales tax rate should I use?
- Check your local state, county, and city combined sales tax rate - these vary widely across jurisdictions and even by product type in some areas.
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Methodology
This calculator uses standard percentage math. See our methodology page for details.
This calculator provides estimates for educational purposes only. Actual rates, taxes, insurance, fees, and lender terms may differ. It does not constitute financial advice - consult a qualified financial professional before making financial decisions.