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FAQ: What is a Corporate Number?

  • Q & A are added as needed. For other questions related to corporate numbers, please refer to the FAQ on the National Tax Agency Corporate Number Publication Site.
  • At the end of each answer, it is written as (answer in X, 20 xx). There is one before August 2021, but this was answered on the Digital Agency website before Cabinet Office was established.

Q8-1 How many digits does a corporate number have?

A8-1

The corporate number is a 13-digit number consisting of only numbers. In the case of a corporation that is incorporated and registered pursuant to the provisions of laws and regulations under the Companies Act, etc. (incorporated and registered corporation), the corporate number is the number obtained by adding one digit for inspection in front of the corporate number (12 digits) based on Commercial Registration Act (updated in July 2014).

Q8-2 Is the scope of use of the Corporate Number the same as My Number (Individual Number)?

A8-2

Unlike the My Number (Individual Number), the Corporate Number has no restrictions on the scope of use, so anyone can use it freely. (Updated December 2021)

Q8-3 To what kind of organization is a corporate number designated?

A8-3

Corporate numbers are designated for (1) national government organs, (2) local governments, (3) corporations registered for establishment, and (4) corporations other than those in (1) - (3) or associations without juridical personality, to which notification of establishment of payroll offices, etc. must be submitted.

In addition, even if you do not fall under the above, if you meet certain requirements, you can receive a corporate number designation by notifying the Secretary General of National Tax Agency.

Since one corporate number is assigned to one corporation, corporate numbers are not assigned to the branches and offices of corporations. (Answer in December 2021)

Q8-4 Do you plan to assign a corporate number to a sole proprietorship?

A8-4

There are no plans to assign corporate numbers to sole proprietors. (Answer in September 2015)

Q8-5 What are the benefits of introducing a Corporate Number?

A8-5

The advantages of the introduction of corporate numbers include increased administrative efficiency, improved fairness and impartiality, reduced administrative burdens on companies, and the creation of new value. For details, please refer to What is Corporate Number (National Tax Agency Corporate Number Public Website) . (Updated December 2021)