In principle, every employee - i.e. also every marginally employed person - receives a social security card. The social security card is issued by the competent pension insurance institution. It contains the pension insurance number(insurance number), the family name and, if applicable, the name at birth as well as the first name of the card holder and the date of issue.
Employees who take up new employment must present their social security card to the employer when they start work. If the employee is unable to do so at the time the employment begins, he or she must do so immediately.
The purpose of the social security card is to detect illegal employment (undeclared work) and to prevent the abuse of social benefits, as well as to counteract the abuse of the marginal earnings threshold(marginal employment).
If the social security card is lost or destroyed or becomes unusable, a new card will be issued to the employee upon application. The application must be submitted to the competent health insurance fund (= collection agency) or to the competent pension insurance institution. A new card will also be issued without an application if the insurance number, surname or first name have changed. Invalid or additional social insurance cards must be returned to the competent health insurance fund or the competent pension insurance institution. Each employee may only possess one social security card issued in his or her name and is obliged to notify his or her competent health insurance fund or the competent pension insurance institution without delay of its loss or recovery.
§ 18h Social Security Code IV
Statutory pension insurance institutions and health insurance funds