Tax Calculator
Final price = Price × (1 + Tax ÷ 100)100 × (1 + 8 ÷ 100) = 108
Free online tool
Tax Calculator
Find the tax amount and tax-inclusive price using a rate you provide.
Instant calculation
Calculate tax on a price
Add a tax rate you already know to a price.
Instant calculation
Find pre-tax price from total
Calculate the price before tax when you know the tax-inclusive total.
Your result
Calculation
Your numbers stay in this browser. Nothing is uploaded or saved.
Three clear steps
How to use this calculator
- 01
Enter the price
Type the price before tax.
- 02
Enter the tax rate
Type the percentage tax rate you already know.
- 03
Calculate final price
See the tax amount and price including tax.
The formula
How this calculation works
Multiply price by the tax rate to find tax, then add it to the original price.
Check the method
Worked examples
Each example follows the same formula used by the calculator.
What is 8% tax on 100?
100 × (1 + 8 ÷ 100) = 108Tax 8; final price 108What is 5% tax on 240?
240 × (1 + 5 ÷ 100) = 252Tax 12; final price 252Common questions
Questions about this calculation
How do I add tax to a price?
Multiply the price by the tax rate divided by 100, then add the tax amount to the price.
What is 8% tax on 100?
The tax amount is 8 and the final price is 108.
Does this calculator know my local tax rate?
No. Enter the rate that applies to your situation; Flux Calculator does not provide live or location-specific tax rates.
Can I use a decimal tax rate?
Yes. Rates such as 7.25% are supported.
Is this tax advice?
No. This is a general arithmetic tool, not tax, legal or financial advice. Confirm important obligations with an appropriate authority or professional.
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