The Anmeldung is the process of registering your address at the citizen's office (Bürgeramt). Every time you move in Germany, you must register your new address at the Bürgeramt. This will become your official address in Germany.

During your Anmeldung appointment, you will receive an Anmeldebestätigung. This document confirms your official address in Germany. It's often required to open a bank account or get a cellphone contract. During your first Anmeldung, you will also receive a tax ID (Steueridentifikationsnummer).

For more details about the Anmeldung, see this guide.