BridgeInvoice

Side-job tax filing checker (副業 確定申告)

Based on your side income and how you work, find out whether you must file a 確定申告 — and the separate 住民税 obligation everyone misses.

Enter values above and your results will appear here.
⚠️ General guidance only. Income classification and individual factors can change the result. Confirm with your 税理士 or tax office.

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and rates as of the date shown, but may contain errors, may not reflect your specific circumstances, and may become outdated as laws and rates change.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.