Sales Tax Calculator
Enter a price and select the appropriate tax rate. The calculator shows the tax amount for both adding tax (pre-tax → total) and removing tax (total → pre-tax).
Tax amount (price excl. tax):
Price incl. tax:
Tax amount (price incl. tax):
Price excl. tax:
How Does the Sales Tax Calculator Work?
The sales tax calculator works in both directions — adding tax to a pre-tax price, or removing tax from a total.
Pre-tax → Total (add sales tax):
Tax amount = pre-tax price × (tax rate / 100)
Total = pre-tax price + tax amount
Total → Pre-tax (remove sales tax):
Pre-tax price = total / (1 + tax rate / 100)
Tax amount = total − pre-tax price
US Sales Tax Overview
Sales tax in the United States is set at the state and local level — there is no federal sales tax. Rates vary significantly by state:
| State | State rate | Avg. combined rate |
|---|---|---|
| California | 7.25% | ~8.7% |
| Texas | 6.25% | ~8.2% |
| New York | 4.0% | ~8.5% |
| Florida | 6.0% | ~7.0% |
| Oregon / Montana | 0% | 0% |
Five states have no state-level sales tax: Alaska, Delaware, Montana, New Hampshire, and Oregon.
Who Benefits from the Sales Tax Calculator?
- Shoppers — find out exactly how much you'll pay at checkout
- Business owners — compute tax to add to invoices
- Travelers — understand price differences between states
- Accountants — verify calculations on receipts and invoices
See also
- Discount Calculator – Calculate sale prices and savings
- Tip Calculator – Calculate tip after tax