Sales Tax Calculator
Calculate sales tax, final price, or determine tax rate with our comprehensive sales tax calculator.
Enter your information to calculate sales tax
- Select Calculation Mode: Choose whether you want to calculate from pre-tax price, after-tax price, or find the tax rate
- Enter Required Information: Input the price and tax rate based on your selected mode
- Calculate: Click the calculate button to see your results
- Review Results: See the breakdown of pre-tax price, tax amount, and final price
1. From Pre-Tax Price
Tax = Pre-Price × (Rate / 100)
After Price = Pre-Price + Tax
2. From After-Tax Price
Pre-Price = After Price / (1 + Rate / 100)
Tax = After Price - Pre-Price
3. Find Tax Rate
Rate = ((After Price / Pre Price) - 1) × 100
Example 1: Calculate Final Price
Pre-tax price: $100, Tax rate: 8% → Tax: $8, Final price: $108
Example 2: Reverse Tax Calculation
After-tax price: $108, Tax rate: 8% → Pre-tax price: $100, Tax: $8
Example 3: Find Tax Rate
Pre-tax: $100, After-tax: $108 → Tax rate: 8%
How is sales tax calculated?
Sales tax is calculated by multiplying the pre-tax price by the tax rate percentage. The tax amount is then added to the original price to get the final price.
Can I calculate reverse sales tax?
Yes! If you know the final price and tax rate, you can calculate the original pre-tax price and tax amount using our reverse calculation mode.
What is the difference between VAT and Sales Tax?
VAT (Value Added Tax) is applied at each stage of production, while sales tax is only applied at the final point of sale to the consumer. This calculator works for both types of taxes.
Are sales tax rates the same everywhere?
No, sales tax rates vary by location. They can differ by state, county, and city. Always check your local tax rates for accurate calculations.