Tax Calculator
Calculate tax-included and tax-excluded prices with automatic tax amounts. Supports 10%, 8% and custom rates.
Tax excluded
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Tax amount
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Tax included
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How to use
- 1
Enter amount
Enter the amount to calculate.
- 2
Choose tax rate
Select 10%, 8% or a custom rate.
- 3
Check result
Tax-included/excluded prices and the tax amount are shown automatically.
Features
- Convert between tax-included and tax-excluded prices
- Supports 10%, 8% and custom rates
- Tax amount shown automatically
- Rounded results
Use cases
Verify receipts
Reverse-calculate tax-excluded prices from tax-included receipt amounts.
Prepare quotes and invoices
Compute tax-included totals and tax amounts for accurate documents.
Price restaurant items
Calculate tax-included prices for items under the reduced 8% rate.
Details
The tax calculator quickly converts between tax-included and tax-excluded prices. Use it to check receipts, prepare quotes, or calculate tax on invoices.
In addition to the standard 10% and reduced 8% rates, you can set any custom rate from 0% to 99%. Reverse calculation from tax-included prices is also supported.
Formula: tax-included = tax-excluded × (1 + rate). Reverse: tax-excluded = tax-included ÷ (1 + rate). Fractions are rounded.
FAQ
Can I change the tax rate?
Yes. In addition to the 10% and 8% presets, you can set a custom rate from 0% to 99%.
Can I reverse-calculate from tax-included prices?
Yes. Enter the amount in "tax-included" mode to get the tax-excluded price and tax amount.
Does it support the reduced 8% rate?
Yes. Select 8% for items eligible for the reduced rate, such as food and beverages.
How do I find the 10% tax in a tax-included price?
Enter the amount in tax-included mode to see the base price and the tax.
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Verified: Tax rates, amounts and results are not sent to analytics
Did you know?
Japan's consumption tax was introduced in 1989 at 3%.