BridgeInvoice

Consumption Tax 4-Method Optimizer

Compare Standard, Simplified, the 20% rule and the new 30% rule at once. The only calculator that includes 3割特例 for individual sole proprietors.

Includes the new 30% rule — One of the only calculators that includes the 30% special rule for individual sole proprietors (Oct 2026 – Sep 2028), confirmed by the December 2025 tax reform.
Enter values above and your results will appear here.
⚠️ Rates and rules shown reflect the December 2025 tax reform. Eligibility also depends on factors such as base-period taxable sales. Confirm with your 税理士 before filing.

Disclaimer

This tool is provided for informational and convenience purposes only and does not constitute tax, legal, accounting, or professional advice. Calculations and generated documents are based on publicly available rules and rates as of the date shown, but may contain errors, may not reflect your specific circumstances, and may become outdated as laws and rates change. You are solely responsible for verifying all outputs before use. BridgeInvoice and its operators accept no liability for any losses, penalties, or damages arising from the use of or reliance on this tool. Consult a qualified tax advisor (税理士), attorney (弁護士), social insurance consultant (社会保険労務士), or other licensed professional for advice specific to your situation.