Sales Tax Calculator
Calculate tax-inclusive from tax-exclusive prices, or vice versa. Supports standard 10% and reduced 8% rates.
Input
JPY
Result
Price (excl. tax)1,000JPY
Tax Amount100JPY
Price (incl. tax)1,100JPY
Rounding: excl. to incl. uses rounding, incl. to excl. uses truncation. Methods may vary by business.
How to Use
Select tax-exclusive or tax-inclusive mode, enter the amount and tax rate (10%/8%/custom), and the tax amount and converted price will be calculated.
How It Works
Tax-exclusive to tax-inclusive uses rounding; tax-inclusive to tax-exclusive uses truncation (standard Japanese practice).