届出 Notification

届出を怠ると、次の更新時に在留資格を失ったり、期間が短くなったりする事由に当たります。更新や変更、永住申請の際に、必ず整合性をチェックされるので、遅れてもいいので必ず行いましょう。 Failure to the notification could result in the loss of status or residence or shortend period at the next renewal. When you renew or change the status of residence  or apply for the Permanent Residence or Naturalization in Japan, the Immigration is sure to check the consistensy. Be sure to make a notification even when delayed.