Getting Your Kaution (Deposit) Back and Tenant Rights in Germany 2026

30-second summary: In Germany the deposit (Kaution) is capped at three months' cold rent (Kaltmiete), must be held in a separate account, and is refunded minus justified deductions. Never hand back the flat without signing an Übergabeprotokoll (handover protocol).

Housing is the topic international students complain about most. The biggest pain: not getting the deposit back. Here is the legal framework and how to protect yourself.

How high can the deposit be?

By law the Kaution is at most three months' cold rent (Kaltmiete — net rent excluding utilities), under §551 BGB. The landlord must hold it in a separate, interest-bearing account apart from their own money; the interest belongs to you. You have the right to pay it in three installments.

On move-out: the Übergabeprotokoll

When you hand back the flat, always sign a handover protocol (Übergabeprotokoll): meter readings, existing damage and the number of keys recorded in writing. This document is your strongest protection against later unjustified deductions. Take photos if you can.

When is the deposit refunded?

The landlord refunds within a reasonable period; in practice they may withhold part until the utility statement (Nebenkostenabrechnung) is settled (often a few to six months). Justified deductions: unpaid rent, damage beyond normal wear, an outstanding utilities balance.

Your tenant rights

• Mietminderung: With serious defects (mould, no heating) you may have the right to reduce the rent proportionally.
• Nebenkostenabrechnung: The utility statement must be itemized and delivered within 12 months of the period's end.
• If the refund is late: send a written demand with a deadline (Frist); if unresolved, a Mieterverein (tenants' association) or legal route.

⚠️ Amounts and deadlines depend on the specific case; in a dispute, a Mieterverein membership or legal advice is the safest path. This information is general.