Sales Tax Calculator
Add a percentage sales tax to a subtotal.
Results are provided for general informational use. Verify important financial, health or legal figures before relying on them.
About this Sales Tax Calculator
The Sales Tax Calculator adds a percentage tax to a pre-tax subtotal. Because sales tax rates and taxable items differ by location, the rate is fully editable instead of being looked up automatically.
For related tasks, try VAT Calculator, Discount Calculator or Commission Calculator.
How the calculation works
Tax amount equals subtotal × rate ÷ 100, and the final total equals subtotal plus tax. Always use the rate that applies to your actual jurisdiction and transaction.
How to use it
- Enter the pre-tax subtotal.
- Enter the applicable sales tax rate.
- Calculate to see tax amount and final total.
Practical example
A subtotal of 100 at an 8.25% rate produces tax of 8.25 and a total of 108.25.
Frequently asked questions
Does it know my local tax rate?
No. You enter the rate yourself.
Can I calculate tax-inclusive prices?
This tool adds tax to a subtotal; use the VAT Calculator when you need an extract-tax mode.
Are exemptions included?
No. Local taxability rules are outside this simple arithmetic tool.
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