Sales Tax Calculator
Instantly calculate the total cost of any purchase by including or excluding sales tax.
Pre-Tax Price
$0.00
Tax Amount
$0.00
Total Price
$0.00
Why Use This Tool? ✅
Fast & Flexible
Instantly calculate results for both adding and removing sales tax with a simple switch.
Accurate Every Time
Avoid manual math errors and get precise calculations for any price or tax rate.
For Business & Shopping
Perfect for creating invoices, checking receipts, or budgeting for purchases.
Customizable Rates
Enter any tax rate you need, making it useful for local and international calculations.
Demystifying Sales Tax: A Guide for Shoppers and Businesses 💰
Sales tax is a consumption tax imposed by governments on the sale of goods and services. While the concept is simple, the calculations can sometimes be tricky, especially when you need to work backward from a final price. This tool is designed to handle both scenarios with ease.
How to Add Sales Tax
This is the most common calculation you'll do when shopping or creating an invoice. You have a base price and you want to find out the total cost after tax.
Formula for Tax Amount: Tax = Pre-Tax Price × (Tax Rate / 100)
Formula for Total Price: Total = Pre-Tax Price + Tax Amount
Example: For a $100 item with an 8% tax rate:
Tax = $100 × (8 / 100) = $8.00
Total = $100 + $8.00 = $108.00
How to Remove Sales Tax (Reverse Calculation)
This is useful when you have a final receipt total and want to know the original price before tax was added. This is often necessary for accounting and expense reporting.
Formula for Pre-Tax Price: Pre-Tax Price = Total Price / (1 + (Tax Rate / 100))
Formula for Tax Amount: Tax = Total Price - Pre-Tax Price
Example: If the total price is $108.00 with an 8% tax rate:
Pre-Tax Price = $108 / (1 + (8 / 100)) = $108 / 1.08 = $100.00
Tax = $108 - $100 = $8.00
Our calculator simplifies these formulas into an intuitive interface, giving you the power to manage your finances accurately, whether you're a consumer, a freelancer, or a business owner.