Sales Tax Calculator

What is a Sales Tax Calculator?

A sales tax calculator computes the tax amount added to a purchase and calculates the total cost. Sales tax rates vary by location and product type.

How to Use This Calculator

Enter the pre-tax amount and the sales tax rate. The calculator shows the tax amount and the final total including tax.

Sales Tax Formula

• Tax Amount: Amount × (Tax Rate ÷ 100)
• Total: Amount + Tax Amount

Tax Rates by Location

Sales tax varies significantly: some states have no tax, while others have 10%+ combined rates. Many countries have VAT instead of sales tax.

Exemptions

Certain items may be tax-exempt: groceries, prescription medicines, and clothing in some states.

FAQ

How do I calculate multiple tax rates?
Add them together first (e.g., 5% + 2% = 7%), then calculate.