What is it and when to do it?
When you move, you need to decide whether to transfer your internet contract to the new address or cancel it penalty-free. Notify your provider within 6 weeks of moving in — this is the critical window for the Sonderkündigungsrecht under §57 TKG 2021. Miss it and the right lapses.
Where and how much does it cost?
A contract transfer is usually free and can be requested via your online account or by phone. For new contracts, compare offers on Check24.de or Verivox.de. Note: older buildings (Altbau) may have limited infrastructure — ask the provider about the available technology (DSL, cable, Glasfaser) before signing.
Common mistakes
Moved and forgot to notify the provider — 6 weeks passed and the Sonderkündigungsrecht was gone. Now paying for two addresses until the contract ends. Notify your provider in the very first week after moving in.
Signed up for Glasfaser at the new place without checking the building — only DSL infrastructure was available, installation took 3 months. Before signing, call the provider and ask: 'Is there an active connection point at this address?'