Finance
Sales Tax Calculator
Tax amount and total price at any rate. Works in reverse too.
How to calculate sales tax
Tax = Price × (Rate ÷ 100) | Total = Price + Tax
Example: $75 at 8% → $6.00 tax → $81.00 total.
States with no sales tax
Alaska, Delaware, Montana, New Hampshire, and Oregon have no state-level sales tax.
Reverse calculation
To find pre-tax price from a total: Pre-tax = Total ÷ (1 + Rate). Example: $108 at 8% → $108 ÷ 1.08 = $100.
Frequently asked questions
How do I calculate sales tax?▾
Multiply the price by the tax rate as a decimal. $50 at 8%: $50 × 0.08 = $4 tax, $54 total.
How do I find pre-tax price from a total?▾
Divide total by (1 + rate as decimal). $108 at 8%: $108 ÷ 1.08 = $100.
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