Tips
- Assign a different tax rate per line item—perfect for receipts that mix standard and reduced rates.
- The CSV export includes every item and total so you can import the data into spreadsheets or accounting tools.
- Shared URLs carry every setting, making it easy to revisit recurring quotes or invoices.
Disclaimer: this tool provides estimates. Confirm amounts against your accounting policy or tax advisor.
When to use this calculator
Use this page when one receipt or estimate mixes Japan’s 10% standard rate, 8% reduced rate, or a custom rate across line items. Stay here when the problem is item-by-item tax breakdown, HT/TTC switching, and rounding. Open VAT, GST, or payroll pages when you are modeling another tax system.
Practical workflow
- Choose whether your source numbers are tax-exclusive or tax-inclusive.
- Add each item with the correct rate before you worry about rounding.
- Review the line breakdown, then copy the result URL, export CSV, or print only after the rounding mode is confirmed.
What to check before sharing
- Confirm whether the quote or receipt expects whole-yen rounding or decimals.
- Make sure each item uses the intended 10%, 8%, or custom rate.
- Use the custom-rate option only when you already know the non-standard percentage you need to test.
FAQ
Can I enter either tax-exclusive or tax-inclusive amounts?
Yes. Use the switch at the top of the form to choose tax-exclusive input (net) or tax-inclusive input (gross). Gross mode reverses the tax so you can inspect the net amount and tax breakdown.
Does the calculator support reduced tax rates and rounding rules?
You can assign the standard 10% rate, the reduced 8% rate, or a custom rate per item. Rounding supports nearest, up, or down with either whole yen or two decimal places.
When should I use this instead of a fixed-rate VAT page?
Use this page when one calculation mixes several rates or needs line-by-line totals. A fixed-rate page is faster when every item uses the same percentage and you only need one net↔gross conversion.
Can I reuse the same setup later?
Yes. Shared URLs preserve the mode, rounding, and current line items so you can reopen the same quote or teaching example in the browser.