March 16, 2026
Checking Your Nebenkostenabrechnung: Deadlines, Rights, and Common Errors
Once a year, it lands in your mailbox: the Nebenkostenabrechnung, or annual utility cost statement. Most tenants find it hard to make sense of, but it's almost always worth a close look — according to tenant associations, errors in these statements are far from rare.
What deadline applies to your landlord
Your landlord must deliver the Nebenkostenabrechnung no later than 12 months after the end of the billing period (Section 556(3) of the German Civil Code, BGB). If the statement for 2025 only arrives in January 2027, it's generally too late, and the landlord loses the right to claim any additional payment. Credit balances owed to you as the tenant aren't affected by this deadline — those have to be paid out regardless of timing.
How long you have to object as a tenant
Once you've received a formally correct statement, you have 12 months to object in writing, naming the specific line items you're disputing. One important detail: paying "under reservation" doesn't hurt your case. If you pay a top-up amount as a precaution while also objecting in writing, you can still reclaim any amount you overpaid later.
The most common errors in utility statements
**Non-allocable costs**: administrative costs, repairs, and maintenance reserves aren't allowed to be passed on to tenants under the Operating Costs Ordinance (Betriebskostenverordnung, BetrKV), but they still turn up occasionally in practice.
**Wrong allocation key**: costs have to be split using the method agreed in the rental contract (usually living area) — an incorrectly applied key inflates an individual tenant's share.
**Vacancy costs**: operating costs for empty apartments in the same building can't be spread across the units that are actually rented out.
**No year-on-year comparison**: a sharp jump from the previous year with no clear explanation (a renovation, for instance) is a warning sign worth checking.
How to actually check your statement
First, compare the total operating costs against the German Tenants' Association's operating-cost survey: the nationwide average is €2.28 per square metre per month, rising to €2.87 if every permitted cost category applies. If your own statement sits well above that, the next step is worth taking: request to see the original receipts. Under Section 259 of the German Civil Code (BGB), your landlord is required to disclose invoices and supporting documents on request, usually via an in-person appointment or as copies. Our rental cost breakdown of Kaltmiete, Nebenkosten, and Warmmiete explains how these advance payments relate to your monthly rent in the first place.
Frequently Asked Questions
What happens if the landlord misses the 12-month deadline?
The landlord generally loses the right to demand a top-up payment, unless they can prove the delay wasn't their fault.
Do I have to pay a top-up payment in full right away?
No, you can pay under reservation while objecting in writing to specific line items. That preserves your ability to reclaim the amount later.
Can a landlord bill repair costs through the Nebenkosten?
No. Maintenance and repair costs are the landlord's own running costs and, under the Betriebskostenverordnung, may not be passed on to tenants. See our separate guide on costs tenants aren't liable for for the full list.
Where can I see the receipts behind my statement?
Under Section 259 BGB, your landlord must let you inspect the underlying invoices on request, typically as an appointment with the property management or as copies against reimbursement of copying costs.
