Reverse Sales Tax Calculator
Pre-tax = tax-in total ÷ (1 + rate). Click any i for detail.
Receipt
Tax-in total ($)
i
Total
Amount that already includes sales tax. |
|
|---|---|
Sales tax rate (%)
i
Rate
Combined rate you want to extract. We do not look up city districts. |
How to use this calculator
- Enter the tax-included total.
- Enter the rate that was applied.
- Read pre-tax and tax.
- Use the forward sales-tax page to add tax to a shelf price.
Results explained
pretax = total / (1 + rate/100). tax = total − pretax. This is the inverse of adding tax.
Quick reference: extract tax
If the register already taxed it, this undoes one rate.
| Item | Detail |
|---|---|
| $43.20 @ 8% | Pre-tax $40.00 |
| VAT-style receipts | Same math for a single rate |
| Exempt items on a mixed ticket | Not modeled |
| Forward add-tax | Sales tax calculator |
Rate lookup is your job — we do not geocode.
How the estimate is built
pretax = total / (1 + r). tax = total − pretax.
Example scenario
$43.20 including 8% tax → pre-tax $40.00, tax $3.20.
FAQ
Add tax instead?
Use the sales tax calculator.
Compound local + state?
Enter the combined rate.
Tips?
Usually after tax — not in this extract.