BridgeInvoice

Invoice registration number lookup (T-number)

Enter a supplier's qualified-invoice registration number (T plus 13 digits) to see the registered name, registration date and any cancellation or expiry from the National Tax Agency's public register. Check up to 200 numbers at once, save the results as CSV, or start from a company name.

Automatic lookup on this page is being set up. The format check and a direct link to each number's page on the NTA public site work now. NTA site

Start from a company name or corporate number

A company's registration number is T plus its corporate number (houjin bangou), so finding the corporate number gives you the T-number. A sole proprietor's number cannot be derived from any public number: ask them for it and check it here.

How to use it

  • A registration number is T followed by 13 digits. You can leave out the T or type full-width digits.
  • A number shown as cancelled or expired cannot be used for qualified invoices from that date. Compare the date with the transaction date.
  • Lists are checked 10 numbers at a time, so 200 numbers can take some seconds.
  • The CSV includes the date you checked, so you can keep it as a record.
Results are reference information based on the NTA public register. Confirm on the NTA public site before relying on them.

このサービスは、適格請求書発行事業者公表システムWeb-API機能を利用して取得した情報をもとに作成しているが、サービスの内容は国税庁によって保証されたものではない

このサービスは、国税庁法人番号システムのWeb-API機能を利用して取得した情報をもとに作成しているが、サービスの内容は国税庁によって保証されたものではない

Spec last checked：2026-10-15

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and rates as of the date shown, but may contain errors, may not reflect your specific circumstances, and may become outdated as laws and rates change.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