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HOME > Introduction to Kenpo > The Social Security and Tax Number System
The Social Security and Tax Number System
 

Under the Social Security and Tax Number System, every person registered on a certificate of residence will be assigned a 12-digit Individual Number (Social Security and Tax Number). This will make it possible to accurately and efficiently link information for individuals across the domains of social security, tax, and disaster response.



Purpose of adoption of the Social Security and Tax Number System


1.Administrative efficiency

The system will greatly reduce the time and effort required by national administrative agencies, local governments, and other organizations for various activities, including checking, transferring, and entering various types of information. By better linking multiple operations, the system will eliminate task duplication and other inefficiencies.

2. Realizing a fair and equitable society

The system will make it easier to ascertain income and benefits received from other administrative services. This, in turn, will help prevent cases of unjustified avoidance of burdens or inappropriate receipt of benefits, while providing comprehensive assistance to those who really need it.

3. Improving convenience to the public

The system will simplify various administrative procedures and reduce the burden for the public, for example, by reducing the need to attach documents. The system will also allow members of the public to check the information concerning them held by administrative agencies and to receive notifications of and learn about various services such agencies can provide.



Timetable for adopting the Social Security and Tax Number System


Starting January 2016, adoption of the Social Security and Tax Number will proceed steadily in administrative procedures for social security, tax, and disaster response.

[Timetable after notification of Social Security and Tax Numbers (planned)]

January 2016:

Distribution of Individual Number Cards begins.
Use of Social Security and Tax Numbers in administrative procedures for tax and social security related to National Health Insurance and employment insurance will start from this month.

January 2017:

Use of Social Security and Tax Numbers on notifications of social security matters related to health insurance and employees?f pension insurance will begin.
Starting January 1, you must enter your Social Security and Tax Number on application forms involving eligibility and benefits that you submit to the Health Insurance Society. (On application forms related to benefits, you may enter either your Social Security and Tax Number or your health insurance card code/number.)

July 2017:

Trial linkage of information among national government agencies and other organizations will begin.
A system for disclosing records, including providing information (Maina Portal), will begin operating on a trial basis. You can use Maina Portal to relay your personal information online.
Trial linkage of information among parties, including health insurance societies (including insurers) and local governments, will begin.

Around autumn 2017:

Full linkage of information among parties, including health insurance societies (including insurers) and local governments, will begin.
Full operation of Maina Portal will begin.



Handling of Social Security and Tax Numbers and specific personal information


Social Security and Tax Numbers and personal information containing these numbers ("specific personal information" hereinafter) may not be used for purposes other than those specified by law.


Restrictions apply to the use, provision, and collection of Social Security and Tax Numbers.

 

Scope of use of Social Security and Tax Numbers
By law, use of the numbers is restricted to administrative procedures related to social security, tax, and disaster response.

Requests to provide Social Security and Tax Numbers
The individuals concerned and others can only be asked to provide Social Security and Tax Numbers when this information is necessary to prepare documents for procedures involving social security and tax matters.

Restrictions on requests to provide Social Security and Tax Numbers and on provision and collection of specific personal information
Requesting or collecting Social Security and Tax Numbers and specific personal information or providing this information to others is prohibited except in accordance with restrictions set forth under law.



The Health Insurance Society will handle Social Security and Tax Numbers as a Person in Charge of Affairs Using the Individual Number.


A Person in Charge of Affairs Using the Individual Number is a national administrative agency, a local government, an independent administrative agency, or other organization that uses Social Security and Tax Numbers in their processing of administrative procedures, as established in Appended Table 1 of the Act on the Use of Numbers to Identify a Specific Individual in the Administrative Procedure and relevant ordinances.
As a Person in Charge of Affairs Using the Individual Number, the Health Insurance Society will use Social Security and Tax Numbers solely within the scope of such administrative procedures.



Announcement of Specific Personal Information Protection Assessment


As part of efforts to protect personal information, the Social Security and Tax Number System requires Specific Personal Information Protection Assessments of implementing organizations. For these assessments, the organizations must estimate the potential consequences of leaks of specific personal information and other events on privacy and the other rights and interests of individuals; analyze the potential risk of the occurrence of such leaks and other events; and take appropriate measures to mitigate such risks. It also requires the organizations to declare the implementation of these tasks through assessment reports. Listed below are the assessment reports currently issued by the Health Insurance Society on issues related to the protection of specific personal information:

Assessment report on basic items (Japanese version only)



Related links


The Social Security and Tax Number System (Cabinet Secretariat)

The Social Security and Tax Number System (social security area) (Ministry of Health, Labour and Welfare)

The Social Security and Tax Number System (Public Relations Office of the Government of Japan)




Index Top
Introduction to Kenpo
  Health insurance outline
  What is health insurance?
  Tasks performed by Health Insurance Society
  Administration of Health Insurance Society
  What are insurance benefits?
  List of insurance benefits
  Table of monthly insurance premiums
  Medical care cost information
  Data Health Plans
  The Social Security and Tax Number System
Index



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