SALES TAX CALCULATOR
Calculate sales tax instantly — with quick presets for every US state
$108.50
Total Price (with tax)
Reverse Tax (price incl.)
$92.17
Quick Reference — Common Amounts
FREQUENTLY ASKED QUESTIONS
How do I calculate sales tax?
Multiply the pre-tax price by the tax rate (as a decimal). Example: $100 × 0.085 = $8.50 tax. Total = $108.50.
Which US states have no sales tax?
Oregon, Montana, New Hampshire, Delaware, and Alaska have no state sales tax. However, Alaska allows local municipalities to levy sales tax.
What is reverse sales tax calculation?
If you know the total price including tax and want the pre-tax amount, divide by (1 + tax rate). Example: $108.50 / 1.085 = $100.00 pre-tax.
Does sales tax apply to all purchases?
No — many states exempt groceries, prescription drugs, and some services. Tax rates also vary by city and county on top of state rates.