Housing

Renting in Germany: Deposits, Rights, and Subletting

Rental deposits, subletting rules, termination notice, rent increase limits, utility bill disputes, and when to join a tenants' association.

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Once you have a lease, German rental law strongly protects tenants. What you deal with follows a clear order: the deposit when you move in, day-to-day rights while you live there, subletting only if you need it, then move-out and getting your deposit back.

This guide walks through that timeline. For finding a flat, SCHUFA, and the application process, see Finding an Apartment in Germany. For credit reports landlords request, see Credit Reports in Germany. For deregistration when leaving the country, see Leaving Germany.

Rental deposit when you move in (Mietkaution)

The Mietkaution is usually the first large payment after you sign. It protects the landlord against unpaid rent, damage beyond normal wear, or outstanding utility bills. Section 551 of the German Civil Code (BGB) sets the rules. A contract cannot override them.

How much. The maximum is three months’ Kaltmiete (base rent without Nebenkosten). If Kaltmiete is €700, the cap is €2,100. Any higher amount in the contract is illegal. You are not obliged to pay above the cap.

Payment in installments. You have the legal right to pay in three equal monthly installments. The first is due at tenancy start, the second and third with the following two months’ rent. The landlord cannot refuse installments or demand the full deposit upfront. A contract clause demanding full payment upfront is void.

How the deposit must be held. The landlord must keep the money in a separate account (Kautionskonto), not mixed with personal funds. It must earn typical savings interest, which belongs to you. Student and youth dormitories are exempt from the interest obligation (Section 551 para. 3 BGB). The deposit must be protected from the landlord’s creditors if they go bankrupt. You can ask for proof of where it is held. Mixing your deposit with the landlord’s own money violates the law.

Alternatives to cash. A Mietkautionsversicherung (deposit insurance) provides a guarantee instead of cash; you pay an annual premium, often a small percentage of the deposit amount. A Bankbürgschaft is a bank guarantee letter, sometimes with fees. Some tenants use a pledged savings book (Sparbuch). Not all landlords accept alternatives. Discuss this before signing.

Move-in: document the apartment

On your first day, insist on a joint move-in inspection recorded in the Übergabeprotokoll (handover protocol): condition of each room, any existing damage, and meter readings. Both you and the landlord sign it. Take timestamped photos of every room.

Keep this protocol safe. At move-out you will compare it with a new protocol. Damage that was already listed at move-in cannot be deducted from your deposit later.

You usually receive the Hausordnung (house rules) with your contract. It covers quiet hours, cleaning duties, and use of common areas.

The Mietspiegel is the official local rent table on your city website or via a Mieterverein. Use it to check whether your rent or a later increase is in line with local norms.

Your rights while you live there

Most contracts are unlimited (unbefristet) and run until you give notice. Fixed-term contracts (befristet) end on a set date unless extended. Landlords need a valid legal reason to terminate and must respect long notice periods.

Landlord termination. Valid reasons include Eigenbedarf (landlord or close family needs the flat themselves), serious contract violations by the tenant, or economic necessity, which is rare and strictly reviewed. Wanting a new tenant, higher rent, personal dislike, or selling the property are not valid reasons on their own. Notice periods for the landlord depend on tenancy length: about 3 months under 5 years, 6 months for 5 to 8 years, 9 months over 8 years (Section 573c BGB). Tenants always have the standard notice period of about 3 months, regardless of tenancy length: give notice by the 3rd working day of a month to end on the last day of the second following month. Eigenbedarf must be genuine; a social hardship clause can protect elderly tenants, disabled tenants, and families.

Rent increases. Increases tied to the local Mietspiegel are allowed at most every 15 months, capped at 20% within 3 years (often 15% in tight markets). The Mietpreisbremse limits many new contracts in shortage areas to about 10% above the local average. After modernization, landlords may pass on up to 8% of improvement costs per year, but work must genuinely improve the property, not just maintain it. If an increase exceeds legal limits, object in writing within the deadline stated in the notice.

Repairs. Most repairs are the landlord’s duty. Contracts may assign small Kleinreparaturen (minor repairs) to you, but settled case law limits how far. Per-repair caps are typically €75 to €100, with an annual cap of roughly 6 to 8% of annual rent. A clause that shifts all minor repairs to you without these limits is void. If defects go unfixed, Mietminderung (rent reduction) may apply. Notify the defect in writing and state that you are reducing rent. The reduction must match severity; unjustified reduction risks termination for non-payment.

Nebenkosten. Each year the landlord must send the Nebenkostenabrechnung (utility cost settlement) within 12 months after the billing year ends. Review it carefully. Errors are common. You typically have 12 months to object after receiving it.

Mieterverein. Local tenants’ associations offer legal advice and representation for a small annual fee. They help with rent increases, defects, and other issues during the tenancy, not only at move-out.

Subletting (Untermiete), if you need it

Untermiete means renting out your flat or a room while you remain the main tenant. You might need this mid-lease if a partner moves in, you travel for work, or you want to share costs. In Germany you almost always need the landlord’s written permission, even for one room or a short period.

Landlords must grant permission if you have a legitimate reason (berechtigtes Interesse): a partner moving in, financial need to share costs, or temporary work elsewhere. They may refuse only for valid reasons, such as overcrowding or an objectively problematic subtenant. Subletting mainly for profit well above your own rent is not allowed.

As main tenant

You generally need permission to rent out a room, host stays longer than a short visit, run short-term rentals, or sometimes when a partner moves in (check your contract).

You usually do not need permission for close family (spouse, children, parents), short visits of a few weeks, or caregivers if you need care.

Practical steps:

  1. Check your contract for subletting clauses
  2. Write a formal request to the landlord (Untermieterlaubnis): subtenant name, reason, duration, which rooms
  3. Wait for written permission and keep it safe
  4. Create a written Untermietvertrag with your subtenant: rent, deposit, duration, house rules, notice period
  5. Both sign. The subtenant may need Anmeldung; you provide Wohnungsgeberbestätigung (see Address Registration)

Pricing. You may charge proportional costs plus a small markup, not significant profit. Example: you pay €1,000 for 80 m² and sublet 20 m²; around €250 to €300 plus a proportional share of Nebenkosten is reasonable.

Airbnb and short-term rentals. Many cities restrict short-term lets. Berlin bans them without a special permit under Zweckentfremdung rules; fines can be very high. Munich and other cities have their own limits. Check local Zweckentfremdungsverbot rules before listing.

As subtenant (Untermieter)

If you are renting a room from someone else, insist on a written contract. Your deposit is generally capped at three months’ Kaltmiete. Notice periods follow what you agree in writing.

Before moving in: confirm the main tenant has landlord permission in writing, check how long the main lease runs, clarify what happens if the main tenant leaves, and confirm your name on the doorbell and mailbox. Basic protections still apply, but if the main tenant leaves, you likely must leave too.

Move-out and getting your deposit back

When you end the tenancy, the same documentation discipline matters again.

Move-out inspection. Insist on a joint handover when you return the keys. Record the condition in a new Übergabeprotokoll with meter readings. Both parties sign. Take timestamped photos on move-out day. Compare with your move-in protocol. Without documentation, disputing deposit deductions is much harder.

Return timeline. The landlord has a reasonable period to return the deposit. There is no fixed legal deadline, but courts often treat several months as reasonable. The landlord may withhold money for unpaid rent, damage beyond normal wear, or an outstanding Nebenkostenabrechnung not yet issued. Normal wear, such as faded paint, minor scuffs, or slightly worn carpet, is not a valid deduction. Any withholding must be itemized. If there are no claims, the full deposit plus interest must be returned.

Disputes. If the landlord withholds without justification or delays unreasonably, send a written demand with a clear deadline. Contact your local Mieterverein for advice and formal letters. As a last resort, you can go to court. The limitation period for deposit claims is three years from the end of the calendar year in which the tenancy ended.

Useful links:

Related pitfalls

Common mistakes to avoid

Short warnings linked to this guide. Each item highlights a costly or legal slip newcomers often make.

  1. Paying illegal reservation fees to agents

    Medium

    Paying pre-contract deposits to secure a property. Without a notarized contract, these fees offer no legal protection and are often scams.

  2. Signing without a formal handover protocol (Übergabeprotokoll)

    Medium

    Moving into a rental without documenting pre-existing damage. The landlord will withhold the €2,000+ deposit upon move-out.

  3. Performing illegal Schönheitsreparaturen

    Medium

    Repainting or renovating a rental upon move-out due to an invalid cosmetic repair clause in the lease. Tenants often spend thousands unnecessarily.

  4. Ignoring the 12-month Betriebskostenabrechnung limit

    Medium Pro

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  5. Failing to invoke Zurückbehaltungsrecht

    Medium Pro

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  6. Improper ventilation causing mold liability

    High

    Failing to practice Stoßlüften (burst ventilation) 2-3 times daily. The landlord blames the tenant for mold, demanding €5,000+ for remediation.

  7. Canceling a rental contract via email

    Medium

    German tenancy law strictly requires written notice with a wet-ink signature. Emails are invalid, resulting in paying extra months of rent.

  8. Subletting without written permission

    High

    Renting a room via Airbnb or to a friend. Constitutes a breach of contract resulting in immediate eviction without notice.

  9. Ignoring the Mietpreisbremse (rent brake)

    Medium

    Accepting illegally high rent in regulated zones without demanding a reduction. Tenants lose thousands over the lease duration.

  10. Delayed membership in a Mieterverein

    Medium

    Joining a tenants' association only after a dispute arises. Legal insurance components feature a 3-month waiting period, rendering them useless for active disputes.

  11. Paying deposits before viewing

    High

    Falling for typical real estate scams where "overseas landlords" demand deposits via wire transfer prior to providing keys.

  12. Miscalculating the 3-month notice period

    Medium

    Failing to deliver the physical cancellation letter by the 3rd working day of the month, unintentionally extending the lease by an entire month.

  13. Unauthorized bathroom drilling

    Minor Pro

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  14. Overlooking Staffelmiete/Indexmiete clauses

    Medium

    Signing leases where rent automatically increases annually or follows inflation, leading to unsustainable housing costs over time.

  15. Delaying the report of minor defects

    High

    Failing to notify the landlord of a small leak. Under § 536c BGB, the tenant becomes liable for the consequential severe water damage.

  16. Assuming "Warmmiete" covers all utility risks

    Medium

    Treating the warm rent as an all-inclusive flat rate. It is merely an advance payment; high consumption leads to severe back-payments (Nachzahlungen).

  17. Structural damage via balcony solar

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  18. Wohnflächenverordnung Terrace Traps

    High Pro

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  19. Unauthorized Airbnb (Zweckentfremdung)

    High

    Short-term letting can require permission under local Zweckentfremdungs rules, especially in cities like Berlin; non-compliance can lead to substantial fines, but the exact limits and enforcement depend on local law.

  20. Rent reduction (Minderung) without notice

    High

    Reducing rent without properly notifying the landlord and documenting the defect creates legal risk; tenants should usually give notice first, because an unjustified reduction can create arrears.

  21. Landlords ignoring the modernization levy cap

    Medium Pro

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  22. Failing to challenge invalid utility bills

    Minor

    Tenants should review utility bills for non-apportionable items such as administrative costs; bank fees are generally administrative costs and usually not allocable as Nebenkosten.

  23. Failing to secure a rent deposit properly

    High

    Landlords must keep residential rent deposits separate from their own assets in the prescribed manner; commingling increases insolvency risk and can create legal liability for the landlord.

  24. Believing verbal rental agreements are unenforceable

    Medium

    Oral residential rental agreements can be legally valid, but proving the agreed terms is much harder than with a written contract.

Fiduciary Disclosure: The information provided in this guide is for educational and informational purposes only. While we strive to keep the information up-to-date and correct, we make no representations or warranties of any kind about the completeness, accuracy, reliability, suitability, or availability of the information contained herein. Please consult with official municipal or legal authorities for binding advice.