# Employee-related registration requirements
What has to be registered where and how if, for example, the employment status of one of my employees changes? A number of legal requirements must be followed, particularly regarding social security for your employees. You can find the relevant information and services here.
To ServicesAre you temporarily sending staff abroad? To prove that German social security law continues to apply, you can apply for an A1 certificate for your employees.
The tax office can issue a certificate for the wage tax deduction if it is not possible to retrieve the electronic income tax deduction characteristics (ELStAM).
If the equalisation association of which you are a member dissolves or you leave the equalisation association, you will have to take care of your obligations towards the Künstlersozialkasse (KSK) yourself again.