Translation guide
A human being, as opposed to a legal entity like a corporation. In Japanese, this is typically expressed with 自然人 (shizenjin) in legal contexts, or simply 人 (hito) or 個人 (kojin) in everyday language.
To refer to a natural person in legal, business, or formal contexts, distinguishing a human being from a juridical person (法人).
The direct legal term for 'natural person', used in contracts, laws, and formal documents. Contrasts with 法人 (ほうじん, juridical person).
There are differences in legal capacity between natural persons and juridical persons.
Means 'individual' and is often used in contrast to groups or corporations. Common in business and legal contexts, but broader than 自然人.
This service is for individual customers.
To refer to a person in general, everyday conversation, without legal nuance.
自然人 is strictly a legal term meaning 'natural person' (a human being with legal rights). 個人 simply means 'individual' and can be used in many contexts, including legal ones, but does not inherently contrast with juridical persons. Use 自然人 when you need to explicitly distinguish a human from a corporation in a legal sense.
In everyday English, 'natural person' is rare; we just say 'person'. Similarly, in Japanese, 自然人 is only for legal/technical contexts. Using it in casual conversation would sound odd.
人間は社会的な動物だ。
Humans are social animals.