Sales Tax Calculator
Given any two of the before-tax price, sales tax rate and after-tax price, this calculator computes the third. Use it to add tax to a listed price or back out the tax from a receipt total — plus a quick reference of state sales tax rates.
TheCalculators — Sales Tax Calculator
Printed thecalculators.com
After Tax Price
$106.50
Sales tax 6.50% · tax amount $6.50
- Before Tax Price
- $100.00
- Sales Tax Rate
- 6.50%
- Sales Tax Amount
- $6.50
- After Tax Price
- $106.50
- Tax as % of Total Paid
- 6.10%
- Multiplier Applied
- × 1.0650
The math
- 1Tax = before-tax × rate$100.00 × 1.0650 − $100.00 = $6.50 tax
- 2Add or subtract the tax$100.00 + $6.50 = $106.50 (or in reverse: $106.50 − $6.50 = $100.00)
State sales tax rates (general / max with local)
The US has no federal sales tax — rates are set by states, counties and cities, and range from 0% to over 15% combined. Groceries, medicine and other essentials are exempt in many states. In most countries the equivalent is VAT/GST, which is usually already included in the listed price.
Most useful next
Formula
After-tax = Before-tax × (1 + rate); Before-tax = After-tax ÷ (1 + rate); Tax = Before-tax × rate
Pro tips
- • To back the tax out of a receipt total, divide by 1 + rate — never multiply the total by the rate.
- • Shipping is taxable in many states; check your destination’s rules, not just the seller’s location.
- • For business resale purchases, collect a resale certificate to buy inventory tax-free.
FAQ
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