North Rhine-Westphalia Security Deposit Laws: Guide for Landlords
Security deposit rules in NRW, Germany: maximum amount, investment requirements, return deadlines, and permitted deductions for landlords.
法的免責事項
このコンテンツは、一般的な情報提供および教育目的のみを目的としています。これは法的助言を構成するものではなく、法的助言として依拠されるべきではありません。法律は頻繁に変更されます。常に現在の規制を確認し、あなたの状況に固有のアドバイスについては、あなたの管轄区域のライセンスを持つ弁護士に相談してください。Landagerは不動産管理プラットフォームであり、法律事務所ではありません。最終確認日: April 2026.
The security deposit (Mietkaution) is a fundamental element of German rental law. In North Rhine-Westphalia, the federal provisions of the German Civil Code (BGB) apply, supplemented by case law from the Federal Court of Justice (BGH). Landlords who fail to comply with these rules risk having the deposit agreement declared void or facing compensation claims.
法的免責事項このガイドは一般的な法的情報を提供します。賃貸借法は変更される可能性があります。必ずこの地域のライセンスを持つ公証人または弁護士にご相談ください。
Maximum Deposit Amount
Under § 551(1) BGB, the security deposit may not exceed three months' net cold rent (base rent excluding operating costs)
Tenants are entitled to pay in three equal monthly installments, with the first installment due at the start of the tenancy.
Agreements requiring a higher amount are void to that extent — though the tenant must actively reclaim any overpayment.
Investment Requirements Under § 551(3) BGB, the landlord is obligated to:
- Keep the deposit separate from personal assets
- Invest it at a credit institution — typically in a separate savings account with a three-month notice period
- Earn market-rate interest on the deposit
The interest earned belongs to the tenant and is paid out together with the principal upon return of the deposit. Investing in higher-risk instruments (stocks, funds) without the tenant's explicit consent is not permitted.
Alternative deposit forms (if agreed in the lease):
- Bank guarantee (Bankbürgschaft)
- Pledged savings book
- Deposit insurance (Kautionsversicherung)
Return of the Deposit After the tenancy ends, the landlord has a reasonable period to inspect and settle accounts
Courts generally accept a timeframe of three to six months, depending on the complexity of outstanding items.
Permitted Deductions
A deduction for end-of-tenancy cleaning is generally only permitted if the tenant was validly obligated to clean upon departure and the apartment was left in an unclean condition.
Impermissible Deductions
- Normal signs of use and age-related wear
- Damage that existed at move-in
- Repairs qualifying as the landlord's maintenance obligation
Statute of Limitations
Best Practices for Landlords
- Create a handover protocol — detailed written record with photos at both move-in and move-out
- Maintain a separate deposit account — always keep a dedicated account
- Retain interest certificates — keep bank interest statements for the final settlement
- Respect deadlines — issue operating cost statements within 12 months after the billing period
- Do not offset without prior written notice
Landager helps you centrally manage deposit payments, returns, and deadlines with automatic reminders for due dates.
📬 法改正時に通知を受け取る
賃貸借法の改正をメールでお知らせします（対象地域： スパムは一切ありません。法改正のみを通知します。
