Kertatunnus

Kertatunnus is a Finnish term that translates to "identity code" or "unique identifier." It is a system used in Finland to assign a unique, personal identification number to individuals, similar to a social security number in other countries. The primary purpose of the kertatunnus is to facilitate administrative processes, such as taxation, healthcare, and social services. It ensures that each person is uniquely identifiable within official records, preventing duplication and errors.

The kertatunnus is issued by the Finnish Digital and Population Data Services Agency (Digi- ja väestötietovirasto). It is a critical component of the Finnish population registration system. The number consists of a date of birth component followed by a personal identifier. This structure allows for easy verification of the individual's birthdate. Access to and use of the kertatunnus are regulated to protect privacy and prevent misuse. It is essential for various official transactions and is often required when interacting with Finnish authorities or institutions. The system aims for efficiency and accuracy in managing citizen information.