HomeMathFinance HealthBlogAbout
💰 Finance

Sales Tax Calculator

Free sales tax calculator. Add or reverse sales tax from any price. Works with any tax rate worldwide.

💰
Sales Tax Calculator
Free · Instant · No Signup

Formula

Formula
Tax Amount = Price × Rate ÷ 100
Add mode: Tax = Price × Rate/100, Total = Price + Tax. Remove mode: Pre-tax = Total ÷ (1 + Rate/100).

Frequently Asked Questions

How do I calculate 8.5% sales tax?+
Multiply the price by 0.085. Example: $100 × 0.085 = $8.50 tax. Total = $108.50.
How do I back-calculate tax from total?+
Pre-tax = Total ÷ (1 + Rate/100). Example: $108.50 ÷ 1.085 = $100.
What is the US sales tax rate?+
US sales tax varies by state: 0% (Oregon, Montana) to 9.55% (Tennessee). Average is around 7%.
Is this sales tax calculator free?+
Yes, completely free with no signup required.

Related Calculators

🧾
GST/VAT Calculator
Finance
🏷️
Discount Calculator
Finance
🍽️
Tip Calculator
Finance