Formulas
Total = price × (1 + rate). Price before tax = total ÷ (1 + rate).
Frequently asked questions
Which US states have no sales tax?
Alaska (state level), Delaware, Montana, New Hampshire and Oregon.
Sales Tax Calculator
Add sales tax to a price, or find the price before tax.
Your details
Total with tax
$108.25
Tax
$8.25
Price before tax
$100.00