Japanese term
マイナンバー
mai nanbā (My Number / Individual Number)
Meaning
The 12-digit Individual Number assigned to registered residents of Japan for tax, social security, and disaster-relief administration, overseen by the Digital Agency (デジタル庁). Provide it only where a lawful procedure requires it, and apply for a My Number Card only through official channels.
In a sentence
His new employer asked for his マイナンバー for payroll and tax procedures after he started work.