What This Tool Can Do
This tool helps you:
- Add tax to tax-excluded prices (税抜き → 税込み)
- Remove tax from tax-included prices (税込み → 税抜き)
- See the exact tax amount separately
- Adjust tax rate (default: 10%, reduced rate: 8%)
Japan Tax Calculator
This tax calculator helps you instantly calculate prices with or without Japan's 10% consumption tax. Perfect for shopping, business expenses, and understanding Japanese pricing. Free to use, no signup required.
Free & No Signup Required
About Japan's Consumption Tax
Japan's consumption tax (消費税, shōhizei) is currently 10% for most goods and services. A reduced rate of 8% applies to food and beverages (takeout only).
When shopping in Japan:
- 税込 (zeikomi): Tax-included price
- 税抜 (zeinuki): Tax-excluded price
Tax-Included = Price × (1 + Tax Rate ÷ 100)
Tax-Excluded = Price ÷ (1 + Tax Rate ÷ 100)
🧾 Calculate Tax
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Tax Amount
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Results will auto-calculate as you type.
How the Calculation Works
This tool uses standard tax calculation formulas:
- Add tax: Amount × (1 + Rate/100)
- Remove tax: Amount ÷ (1 + Rate/100)
The default rate is 10% (Japan's standard consumption tax). You can change it to 8% for reduced-rate items.
💡 Example Calculation
Q. What is the tax-included price for a ¥10,000 item with 10% tax?
A. Enter "10000" for amount, "10" for tax rate, and select "Add Tax". Result: ¥11,000 (tax amount ¥1,000).
Frequently Asked Questions
Q. Is this tool free to use? +
Yes, all features are completely free. No registration or app installation required.
Q. Is my data saved? +
No, your input and calculation results are not saved to any server. All processing happens in your browser, so your data stays completely private.
Q. Can I use this for commercial purposes? +
Yes, you can use this tool freely for both commercial and personal purposes.
🔗 関連する計算ツール
❓ About This Tool
Q. What is the current consumption tax rate in Japan?
A. The standard rate is 10%. A reduced rate of 8% applies to food and beverages (takeout only).
Q. How do I calculate the tax amount from a tax-included price?
A. Divide the tax-included price by 1.1 (for 10% tax) to get the tax-excluded price, then subtract to find the tax amount.
Q. Is there a tax-free shopping option for tourists?
A. Yes, tourists can enjoy tax-free shopping at stores displaying the "Tax Free" sign when spending over ¥5,000.
このツールについて
本ツールは一般的な計算式に基づいて自動計算を行うものです。正確性には配慮していますが、端数処理や特殊なケースでは結果が異なる場合があります。重要な判断をされる際は、必ずご自身で再確認いただくか、専門家にご相談ください。
最終更新日：2026年3月