If your planned stay is longer than 90 days, one of the first legal obligations after arriving in Germany is to officially register your residential address with the local district office (Bürgeramt). This process is called Anmeldung. You must complete the official registration within 14 days after your initial 90 days in Germany. Upon registration, you’ll receive a confirmation document (Meldebescheinigung), which you’ll need for many other bureaucratic steps like opening a bank account, signing certain contracts, or obtaining a residence permit.