Security Deposit with Index Rent in Germany

Security Deposits & Accounts 3 min read · published September 07, 2025
As a tenant in Germany, the security deposit with index rent raises particular questions: How must the money be held securely, who is entitled to interest, and how can disputes be avoided? This article explains in plain language the rights and obligations of tenants and landlords, how a deposit account works and which proofs are useful. You will get practical steps for correct placement, tips for documentation, examples of account types and information about repayment deadlines. At the end you will find useful notes on official forms, competent courts and concrete actions so you can manage your deposit securely and assert your claims in Germany.Read on for practical templates and court guidance.

What applies to the security deposit with index rent?

If rent is indexed, the rent adjusts to a price index. That affects the deposit insofar as tenants and landlords should agree in writing whether interest on the deposit is handled separately or adjusted by the index. The general legal rules on security deposits and repayment are set out in the German Civil Code (BGB). [1]

In most cases a landlord may not withhold the deposit without evidence.

Practical steps: How to hold the deposit correctly

Proper placement reduces disputes. Insist on written agreements, clear account statements and an explicit rule on interest in case of index rent.

  • Open a deposit account: Insist on a separate, insolvency-protected deposit or escrow account in the tenant's favor.
  • Collect evidence (documents, photos): Keep bank statements, transfer receipts and correspondence.
  • Get a written agreement: Record the treatment of interest and index adjustment in the lease or an addendum.
  • Observe deadlines: Set deadlines for accounting and repayment (commonly within six months) and document requests.
  • Seek legal clarification if uncertain: Contact advisory services or the local court early.
Keep bank statements and correspondence for at least three years.

What to do in case of a dispute?

If the landlord does not pay or makes deductions, send a written reminder demanding repayment with a deadline. Document every step and prepare bank statements and photos as evidence. If the conflict continues, a lawsuit at the local court may be necessary; such rental disputes are usually heard in first instance by the Amtsgericht. [3]

  • Send a reminder: Demand repayment in writing with a clear deadline.
  • Provide evidence: Attach transfer receipts and correspondence.
  • Proceed to court if needed: File a claim at the competent local court.

Frequently Asked Questions

Must the deposit be paid interest with index rent?
There is no special index rule in the BGB on interest with index rent; interest issues should be agreed in writing. [1]
How quickly must the deposit be repaid?
It is common to settle within a few months after moving out; courts have considered repayment periods of up to six months, depending on outstanding claims. [2]
Which court should I turn to in case of a dispute?
Rental disputes are typically handled by the local court (Amtsgericht); higher instances are the regional court (Landgericht) and the Federal Court of Justice (Bundesgerichtshof). [3]

How-To

  1. Collect documents: Gather the lease, bank statements, photos and correspondence.
  2. Open a deposit account: Ensure a separate account or escrow and proof of deposit.
  3. Set a deadline and send a written reminder: Specify a reasonable repayment deadline and document the reminder.
  4. File court action if necessary: Submit the evidence to the competent local court.

Help and Support


  1. [1] German Civil Code (BGB) §§ 535–580a
  2. [2] Federal Court of Justice – selected rental law decisions
  3. [3] Justice Portal – information on courts and responsibilities
Bob Jones
Bob Jones

Editor & Researcher, Tenant Rights Germany

Bob writes and reviews tenant law content for various regions. They’re passionate about housing justice and simplifying legal protections for tenants everywhere.