Sales Tax Calculator (Japan)
Calculate Japan's consumption tax (a VAT-style sales tax). Enter an amount to see the tax-exclusive price, tax, and tax-inclusive total at once. Works with the 10% standard rate or the reduced 8% rate, from either a tax-out or tax-in figure. Everything stays in your browser.
These figures are for reference only. Rounding can vary by business, so for invoices, filings, or other official amounts, please verify against the applicable tax rate and rules.
How to Use the Sales Tax Calculator
New here? Start by tapping one of the "Examples (click to try)" chips above the input โ the amount, tax rate, and tax-out/tax-in direction are all filled in and the result appears instantly. Once you're comfortable, just enter your own amount and pick the rate and whether your figure is tax-out or tax-in. The tax-exclusive price, consumption tax, and tax-inclusive total recalculate live as you type, so there's no button to press. Handy for the register, accounting, and quick quotes.
- Enter the Amount.
- Pick the Tax Rate (10% standard or reduced 8%).
- Choose whether your amount is Tax-out or Tax-in.
- The tax-exclusive price, tax amount, and tax-inclusive total appear right away. Use "Copy Result" to paste it elsewhere.
Worked Example
For a tax-out price of ยฅ1,000 at the 10% rate, the tax comes to ยฅ100 and the tax-inclusive total is ยฅ1,100. Switch to "Tax-in" and enter ยฅ1,100, and it breaks back down into a ยฅ1,000 base price plus ยฅ100 tax. Flip to the reduced 8% rate and a ยฅ1,000 tax-out price becomes ยฅ80 tax and a ยฅ1,080 total.
When This Comes in Handy
- Quotes and invoices: Move between tax-out and tax-in figures on the spot.
- Register and shopping: Break a tax-inclusive price into the base price and the tax.
- Reduced rate checks: Switch to 8% for food and other reduced-rate items with one tap.
Official Rates and Scope
The 10% standard rate and 8% reduced rate are checked against Japan's National Tax Agency guidance on the consumption-tax system and reduced rates (last checked July 14, 2026). This tool does not decide product eligibility, exemptions, invoice-system treatment, input credits, or tax-return liability.
Inclusive-to-Exclusive Formula
For a tax-exclusive input, tax is the amount multiplied by the selected rate and rounded to yen. For a tax-inclusive input, the exclusive amount is inclusive รท (1 + rate), rounded to yen, and tax is the difference. A merchant can obtain another total by rounding down or up and by rounding each line instead of the invoice total.
Use the organization's accounting policy and professional or tax-office guidance for invoices and filings. Use the Discount Calculator for sale-price calculations.