Translation guide
In Japan, there is no single universal national ID number used in daily life. The closest equivalents are the My Number (for tax and social security), the residence card number for foreign residents, and the driver's license number. The concept is expressed differently depending on context.
The 12-digit individual number used for tax, social security, and disaster response.
The common term for the Individual Number. Used in everyday conversation and official contexts.
マイナンバーを教えてください。
Please tell me your My Number.
The formal legal name for the My Number. Used in official documents.
個人番号は12桁の番号です。
The Individual Number is a 12-digit number.
The number on the residence card (zairyū card) issued to foreign residents.
The number printed on the residence card. Often required for administrative procedures.
在留カード番号を記入してください。
Please fill in your residence card number.
The number on a Japanese driver's license, often used as an ID number.
The number on the driver's license. Commonly used for identity verification.
運転免許証番号を入力してください。
Please enter your driver's license number.
When referring to a national ID number in a general sense, without specifying the system.
A direct translation of 'national identification number'. Rarely used in practice; may be understood in discussions about national ID systems.
国民識別番号制度について議論する。
Discuss the national identification number system.
Japan does not have a single national ID number used across all contexts. The My Number is limited to tax, social security, and disaster response. For other purposes, different numbers (e.g., driver's license, residence card) are used. Avoid assuming a one-to-one translation.
When asked for a 'national identification number' in Japan, clarify which number is needed. If unsure, ask: どの番号が必要ですか？ (Which number do you need?)