Sales Tax Calculator
Calculate sales tax for purchases in the USA.
Inputs
Result
Enter values on the left and select Calculate to see the result here.
What the Sales Tax Calculator does
- Computes sales tax from a purchase amount and tax rate.
- Outputs tax amount and total amount after tax.
How to use the Sales Tax Calculator
- Enter the purchase amount.
- Enter your combined state/local sales tax rate manually.
- Click Calculate.
Formula / methodology used
- Tax = amount × (rate ÷ 100).
- Total = amount + tax.
Example calculation
$80 purchase at 8.25% tax.
- Tax = 80 × 0.0825
- Total = 80 + tax
Result: Tax = $6.60, Total = $86.60
Sales Tax Calculator FAQs
What tax rate should I enter?
Enter the combined state and local sales tax rate that applies to your purchase location.