Checking Operating Costs Statement — Deadlines, Errors, and Objections

What is Nebenkostenabrechnung?

Nebenkostenabrechnung (also called Betriebskostenabrechnung) is your landlord's annual statement of the actual operating costs for your apartment. You either receive a payment due (you must pay more) or a credit (you get money back).

Important Deadline: 12 Months

The landlord must deliver the statement within 12 months after the end of the billing period. Example: billing period 01.01–31.12.2025 → statement must arrive by 31.12.2026.

If the statement arrives late:
- You do not have to pay any outstanding balance
- Any credit owed to you remains valid

Umlagefähige Kosten — Which Costs Can Be Charged?

Only certain costs may be passed on to tenants (§ 2 Betriebskostenverordnung):

Allowable Costs

• Property tax — municipal tax on the property
• Water/Wastewater — fresh water and sewage
• Heating and hot water — based on consumption and floor area
• Waste disposal — garbage collection
• Street cleaning and winter services
• Building insurance — fire, storm, water damage
• Caretaker — cleaning, garden maintenance
• Elevator — maintenance and electricity
• Common area electricity — stairwell, basement, exterior lighting
• Chimney sweep

Non-chargeable (common errors!)

• Repairs and maintenance — landlord's responsibility
• Administrative costs — property management, bank fees
• Vacancy costs — empty units cannot be charged to other tenants
• Landlord's legal fees

Checking the Statement — Step by Step

1. Formal Review

• Is the billing period correct (12 months)?
• Is the deadline met (max. 12 months after period end)?
• Are your details accurate (name, apartment, floor area)?

2. Content Review

• Compare total costs with previous year — question deviations over 10%
• Check the allocation key — by floor area, number of residents, or consumption?
• Does the stated apartment size match your lease?
• Are all items chargeable?

3. Right to Inspect Documents

You have the right to inspect original documents with your landlord — invoices, contracts, utility statements. The landlord must grant you access upon request.

Filing an Objection

If you find errors, file a written objection:

• Deadline: 12 months from receiving the statement
• Format: Written by registered mail (proof required!)
• Content: Specifically name which items you dispute
• Outstanding balance: Even with an objection, you must initially pay any amount due (under protest)

Sample Wording

"I hereby object to the Nebenkostenabrechnung dated [date] for the period [period]. I dispute the following items: [specific points]. I request a correction and refund of any overpaid amount."

Tip: Consumer protection organizations offer cost statement reviews from around €35 — often worthwhile for high outstanding balances.

As of: March 2026. All information without warranty.