Nebenkosten-Checker
Check for free whether your Nebenkostenabrechnung (operating-cost statement) is on time, and which cost items are even apportionable to the tenant. Two checks, one tool — for landlords and tenants.
1. Check the deadline (§ 556 (3) BGB)
The statement must reach the tenant no later than 12 months after the end of the accounting period. After that, the landlord can no longer demand a Nachzahlung (back-payment).
Please choose the accounting year and the received date.
2. Check the cost items (§ 2 BetrKV)
Select the items from your statement. We show what is umlagefähig (apportionable) — and what the landlord must bear.
Tap the items that appear on your statement.
This calculator gives initial guidance and is not a substitute for legal advice.
Frequently asked questions
By when must the Nebenkostenabrechnung reach the tenant?
No later than 12 months after the end of the accounting period (§ 556 (3) BGB). For a calendar year, that is 31 December of the following year.
What happens if the deadline is missed?
After the 12-month deadline the landlord can no longer demand a Nachzahlung (back-payment). A tenant's Guthaben (credit) still stands.
Which costs are not apportionable?
Administration costs, maintenance and repairs, bank/account fees, reserves (Rücklagen), and the repair portion of the Hausmeister are not apportionable.