Reverse Sales Tax Calculator
Calculate the original pre-tax price and tax amount from a total amount paid, given the sales tax rate.
Price Breakdown
Reverse sales tax calculates the original price before tax was added.
Original Price = Total Paid / (1 + Tax Rate)
Tax Amount = Total Paid - Original Price
Example: You paid $107.50 with 7.5% tax:
Original Price = $107.50 / 1.075 = $100.00
Tax Amount = $107.50 - $100.00 = $7.50
Common U.S. sales tax rates (state + local averages):
- Tennessee: 9.55%
- Louisiana: 9.55%
- Arkansas: 9.46%
- Alabama: 9.25%
- Washington: 9.23%
- No sales tax: Oregon, Montana, Delaware, New Hampshire, Alaska
Useful for:
- Expense reports and reimbursements
- Reconciling receipts
- Business tax deductions
- Comparing pre-tax prices across states