How to Get Your Security Deposit (Kaution) Back in Germany – Complete Guide 2026

Renting an apartment in Germany usually requires paying a security deposit, called a Kaution. This money protects the landlord in case of unpaid rent, damages, or other contractual costs. But when you move out, your biggest question is: How do I get my Kaution back?

German tenancy law provides clear rules for deposit return — but many tenants, especially internationals, struggle to understand them or don’t get their money back quickly. This guide explains everything you need to know: legal rights, timelines, step‑by‑step actions, and what to do if your landlord delays or refuses the refund.

What Is a Security Deposit (Kaution) in Germany?

A security deposit (Kaution) is a sum you pay before moving in to reassure the landlord that you will fulfill your obligations under the rental agreement. Under German law:

• The deposit cannot exceed three months’ net cold rent (§ 551 BGB).
• The landlord must keep it separate from their personal funds and often in a special account.
• The tenant earns interest on the deposit, which must be returned with the money.

Always avoid paying the deposit in cash if possible — it’s harder to prove later.

How Long Does the Landlord Have to Return the Deposit?

German law doesn’t set a fixed deadline, but courts and tenancy practice generally accept this timeframe:

• 3–6 months after you move out is considered commonsense for return.
• The landlord can legally withhold part of the deposit while they finish reviewing the flat for repairs or outstanding bills.
• In some cases, especially when utility bills (Nebenkostenabrechnung) are not ready, the landlord may hold the deposit for up to 12 months before final settlement.
• If it’s been more than six months with no valid explanation, you can take action to demand a refund.

Steps to Get Your Kaution Back in Germany

1. Do a Proper Handover When You Move Out

Before leaving:

• ✔ Conduct a final inspection with the landlord and create a handover protocol (Übergabeprotokoll).
• ✔ Take dated photos and videos of every room, especially where damages could be charged.
• ✔ Return all keys and provide your forwarding address + bank details for the refund.

This documentation helps support your claim if there’s a dispute later.

2. Ask for the Deposit After Move‑Out

Once you have handed back the keys and completed the handover:

• Send a written request to your landlord asking for the deposit return.
• Include your forwarding address, bank IBAN, and date of key handover.

This step puts your request on record and starts the clock for refund discussions.

3. Follow Up If There’s No Response

If nothing happens after about 3 months:

• Send a formal reminder (Mahnung) by registered mail, with a clear deadline (e.g., return within 14 days).
• Keep a copy of this letter — it may be needed if you escalate the case.

4. Join a tenants’ Association (Mieterverein)

If your landlord ignores the reminders, consider joining a tenants’ association. For a small annual fee, they can:

• Review your case
• Help draft professional letters
• Mediate with the landlord

Tenants’ associations are commonly trusted in Germany and often much cheaper than lawyers.

5. Take Legal Action

As a last resort, you can file a claim at the local court (Amtsgericht). Courts usually side with tenants when the landlord fails to justify withholding the deposit — especially if no documented damages are shown. Having your reminder letters and photos helps your case.

Common Reasons Landlords Withhold Your Deposit

Your landlord may deduct part of the deposit for:

• ✔ Unpaid rent or utility bills
• ✔ Damages beyond normal wear and tear
• ✔ Professional cleaning if required by contract

However, any deductions must be justified with receipts or documented evidence.

What You Can Do If Your Landlord Doesn’t Return the Deposit

Send a Registered Reminder

A Mahnung with a deadline helps show seriousness.

Use a Sample Demand Letter

You can prepare a security deposit demand letter stating:

• Your name and tenancy details
• The amount of deposit
• The legal basis (§ 551 BGB) for return
• A deadline for refund

This letter becomes useful if you escalate legally.

Contact a Mieterverein

Tenant associations support you with communication, negotiation, and lawyers.

Legal Action

If necessary, a legal claim at the Amtsgericht can order the landlord to refund the deposit plus possible interest and legal costs.

Important Rules You Should Know

• ✔ The landlord cannot demand more than three months’ net rent for the deposit.
• ✔ The deposit must be kept in a separate account and earn interest for the tenant.
• ✔ No deduction or withholding is allowed without justification and proof.
• ✔ If utility costs are still outstanding, they can be withheld only until final billing is complete.

Tips to Maximize Your Deposit Return

• Clean thoroughly before move‑out.
• Document everything — photos, videos, emails, letters.
• Attend handover with the landlord in person.
• Send reminders by registered mail only.
• Keep all receipts and communication records.

FAQ (Common Tenant Questions)

How long should I wait before asking for my deposit?

Legally, landlords can take up to 3–6 months to inspect and finalize utility costs before returning the deposit. If it’s >>6 months with no reason, send a reminder.

Can a landlord keep my deposit for no reason?

No. They can hold the deposit only to settle valid claims (unpaid rent, repair costs). If they keep it without good reason, you can dispute it legally.

What if my landlord ignores all letters?

Then escalate: join a Mieterverein or file a claim at the Amtsgericht. Tenant associations are affordable and effective.

Can they use my deposit instead of my last rent payment?

No. The landlord cannot apply the deposit as advance rent — rent must be paid separately. Mixing the two is illegal under German law.

External Resource

For official legal text on deposit limits:
➡ German Civil Code (BGB) § 551 – rules on rent and deposit handling