henkilötunnuksella

Henkilötunnus, often abbreviated as HETU, is the Finnish personal identity code. It is a unique identifier assigned to every person registered in Finland who has a Finnish personal identity card or a Finnish residence permit. The purpose of the henkilötunnus is to facilitate identification and administration of individuals in various official contexts, including taxation, healthcare, social security, and employment.

The structure of the henkilötunnus consists of a date of birth, a unique serial number, and a checksum character. The date of birth portion is represented as DDMMYY, where DD is the day, MM is the month, and YY is the year. The serial number is a three-digit number that distinguishes individuals born on the same day. The checksum character is a letter determined by a specific algorithm based on the preceding digits, ensuring the validity of the code.

Access to and use of the henkilötunnus is strictly regulated by law in Finland to protect personal privacy. Only authorized individuals and entities are permitted to handle and process personal identity codes for legitimate purposes. Unauthorized disclosure or misuse of a henkilötunnus can lead to legal consequences. The Finnish Digital and Population Data Services Agency is responsible for issuing and managing the henkilötunnus system.