Japan Corporate Number (Hōjin Bangō) Explained

Japan’s corporate number, hōjin bangō, is a 13-digit identifier assigned to corporations and certain other entities. It is the most useful key for connecting Japanese names, addresses, invoice records, and other published datasets because it avoids many spelling and translation ambiguities.

What the number identifies

The number identifies a legal entity in the corporate-number system. It is not a branch number, product identifier, license, or score. Two businesses with nearly identical names have different numbers. A company that changes its name or moves generally keeps the same number, which makes the identifier useful for following published changes.

The National Tax Agency’s publication data includes the corporate number, legal name, published address, assignment date, update dates, and closure-related fields. English names and furigana are optional and are absent for many entities.

Why there are 13 digits

The corporate number is represented as 13 decimal digits. Preserve leading formatting exactly and store it as text, not as a floating-point number. Spreadsheet software can convert long identifiers into scientific notation or alter digits, so import settings matter.

When checking a number provided by a supplier, count all 13 digits and copy it directly from a source document. A one-digit error can point to no entity or a different entity. Use exact-number search before attempting a name search.

What the public status means

A current record can show an active entity or a closure date and cause. Closure needs attention because it changes how you interpret invoices, contracts, bank details, and continuing operations. Some records include a successor corporate number, allowing you to follow a merger or other published transition.

The publication can also contain corrections and changes. A daily differential file describes events such as name changes, address changes, closure, reopening, and correction. JapanCompanyCheck stores these differential rows as a timeline while keeping the latest record in the main company table.

An active status is limited to the registration context. It does not describe financial health, licensing for a particular activity, inventory, or the authority of a salesperson.

Corporate number versus invoice number

A corporate qualified-invoice registration number normally consists of T plus the 13-digit corporate number. That relationship lets you compare the two databases precisely. Other invoice registrants, including some individual businesses, have identifiers that should not be forced into the corporate-number dataset.

Invoice registration answers a consumption-tax documentation question. It is not a substitute for checking the corporate legal name and address. See our T-number guide for dates and status fields to review.

Names, scripts, and common search problems

Japanese names may contain kanji, kana, Latin characters, full-width symbols, or an entity marker such as 株式会社. An English trading name may translate or abbreviate the legal name rather than reproduce it exactly. KK is commonly used for kabushiki kaisha, while GK can refer to gōdō kaisha.

For name search, normalize width, letter case, spacing, and punctuation, then compare all returned addresses and identifiers. Never select the first result solely because its name looks familiar. Read our company suffix guide for the distinctions among common forms.

Address changes and head offices

The published address is connected to the entity’s corporate-number record. It may be a registered head-office location rather than a store, warehouse, or daily operating site. An address change in the differential data helps explain why an older invoice or website shows a prior location.

Japanese addresses can also be written in more than one order and with different romanization choices. Compare prefecture, municipality, district, block, and building components, not only the complete string. Our Japanese address guide explains this process.

A practical checking routine

First, obtain the number from the counterparty. Second, search the National Tax Agency record or the JapanCompanyCheck checker. Third, compare the legal name, address, status, and update date. Fourth, use the same digits to check qualified-invoice publication and relevant gBizINFO context. Fifth, obtain a commercial registry certificate if a formal, current document is needed.

Keep the URL and check date with your transaction file. Public data changes, and a saved result should be understood as a dated observation. When a field is absent, record that absence without inventing a value from context.