Family Register (Koseki)

The koseki (family registration system) provides official authentication of a Japanese person’s name, date of birth, parents’ names, family relationships, spouse, and other personal information related to family.

Family Register Notification Forms

Foreign residents must also file notification forms for births and deaths that take place in Japan. You may also file notification forms for marriages and divorces.
For information about responsible service desks and hours, click here.

Birth Notification

Notification to file when a child is born.

Death Notification

Notification to file when a family member or the like passes away.

Marriage Notification

Notification to file to consummate a marriage legally.

Divorce Notification

Notification to file to dissolve the marriage from that point on.

Family Register Transfer Notification / Family Register Division Notification

Notification to file when transferring the domicile of origin, or when creating a new family register by separating from the current family register.