Sales Tax Calculator
Calculate sales tax amount, total price, and tax-inclusive pricing for retail, e-commerce, and business transactions. Supports multiple tax rates and provides detailed breakdown for accurate pricing.
Select Calculation Type
Sales Tax Calculation
Primary Result
Price Before Tax
Sales Tax Amount
Total Price
Tax Calculation Breakdown
How the Sales Tax Calculator Works
Choose Calculation Type
Select whether you want to add tax to a price, remove tax from a total, find the tax rate, or calculate multiple tax rates.
Enter Price and Tax Information
Input the relevant price amounts and tax rates based on your selected calculation type. All calculations are performed in real-time.
View Detailed Results
Get instant calculations with complete breakdown showing price before tax, tax amount, total price, and effective tax rates.
Apply to Business Operations
Use the results for pricing decisions, invoice calculations, tax compliance, and financial planning across your business operations.
Frequently Asked Questions
To calculate sales tax, multiply the price before tax by the tax rate percentage. For example: $100 × 8.5% = $8.50 sales tax. The total price would be $100 + $8.50 = $108.50. Use our "Add Sales Tax" calculator for instant results.
To remove sales tax from a total price, divide the total by (1 + tax rate). For example: $108.50 ÷ 1.085 = $100 (original price). The tax amount is $108.50 - $100 = $8.50. Use our "Remove Sales Tax" calculator for accurate results.
State sales tax is imposed by the state government and applies statewide. Local sales tax is additional tax imposed by cities, counties, or special districts. The total sales tax rate is typically the sum of state + local + any special taxes. Use our "Multiple Tax Rates" calculator for combined calculations.
To find the tax rate, subtract the original price from the total price to get the tax amount, then divide by the original price and multiply by 100. Formula: ((Total Price - Original Price) ÷ Original Price) × 100 = Tax Rate %. Use our "Find Tax Rate" calculator for quick results.
Yes, many items are exempt from sales tax, including most groceries, prescription medications, and certain services. Exemptions vary by state and locality. Some states have no sales tax at all. Always check your local tax authority for specific exemptions and current rates.