マイナンバー

noun

My Number; national identification number; personal identity number

Japan's 12-digit social security and tax identification number, assigned to every resident. Often used in administrative and financial contexts.

wasei-eigo (Japanese-coined English), from my number

See also: 国民総背番号制

• マイナンバーは、市し区く町ちょう村そんから通つう知ちされます。

  Your My Number is sent to you by your municipal office.