How long does a German landlord have to send the Nebenkostenabrechnung?

Under SS 556 Abs. 3 BGB, the landlord must deliver the Nebenkostenabrechnung within 12 months after the end of the billing period. For a billing period ending 31 December 2025, the deadline is 31 December 2026. If the landlord misses this deadline, they forfeit the right to claim any additional charges (Nachforderungen) from the tenant.

How much are average Nebenkosten in Germany per square meter?

According to the Deutscher Mieterbund Betriebskostenspiegel 2024 (published December 2025), the national average is 2.67 EUR per square meter per month. If all 17 cost categories apply, the average rises to 3.68 EUR/sqm/month. For a typical 80 sqm apartment, that is roughly 2,563 EUR per year at the national average.

What costs can a German landlord NOT pass to tenants?

Landlords cannot pass on: Verwaltungskosten (property management fees), Instandhaltungskosten (maintenance costs), Instandsetzungskosten (repair costs including elevator repairs), Modernisierungskosten (modernization costs), their personal insurance like Rechtsschutzversicherung or Hausratversicherung, the repair/admin portion of caretaker costs, and any one-time non-recurring expenses. Only the 17 categories defined in BetrKV SS 2 are allocable.

How long do I have to dispute a Nebenkostenabrechnung?

Under SS 556 Abs. 3 Satz 5 BGB, tenants must raise objections (Einwendungen) within 12 months of receiving the statement. After this deadline, your right to dispute is forfeited. You also have the right to inspect all underlying invoices (Belegeinsicht) under SS 556 Abs. 4 BGB. Always dispute in writing and send via registered mail (Einschreiben) to preserve evidence.

How are heating costs split between tenants in Germany?

Under the Heizkostenverordnung (HeizkostenV) SS 7, heating costs must be split: 50% to 70% based on your individual measured consumption (Verbrauchsanteil) and the remaining 30% to 50% based on your apartment floor area (Flachenanteil). The landlord chooses the exact ratio within these legal limits. The same rule applies to hot water costs under SS 8.

What is the CO2 cost sharing rule for German rental properties?

Since January 2023, the Kohlendioxidkostenaufteilungsgesetz (CO2KostAufG) requires landlords to share CO2 carbon tax costs based on the building's energy efficiency. In efficient buildings (under 12 kg CO2/sqm/year), tenants pay 100%. In inefficient buildings (52+ kg CO2/sqm/year), landlords pay 95%. The CO2 price is 55 EUR per tonne in 2025, rising to a 55-65 EUR corridor in 2026.

Do I still have to pay cable TV through Nebenkosten in Germany?

No. The Nebenkostenprivileg for cable TV ended on 30 June 2024. Landlords can no longer pass bulk cable TV subscription costs to all tenants through the Nebenkostenabrechnung. Tenants now choose and pay for their own TV and internet provider. However, landlords may still allocate costs for in-building fiber-optic infrastructure up to 60 EUR per year per unit.

Nebenkostenabrechnung 2026: Read & Dispute Your German Utility Bill

Q: What is a Nebenkostenabrechnung in Germany?

A Nebenkostenabrechnung is the annual utility and operating cost reconciliation statement that German landlords must send to tenants. It compares the monthly Nebenkosten prepayment (Vorauszahlung) you paid throughout the year against the actual operating costs of the building, broken down into up to 17 categories defined by the Betriebskostenverordnung (BetrKV). You either owe a surcharge (Nachzahlung) or receive a refund (Guthaben).

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You open your mailbox and find a dense, multi-page letter from your landlord. Numbers everywhere, German words you have never seen, and a total at the bottom that says you owe another 400 EUR on top of the rent you already paid all year. Welcome to your first Nebenkostenabrechnung.

This annual utility bill reconciliation catches most expats completely off guard. According to the Deutscher Mieterbund (German Tenants Association), roughly every second Nebenkostenabrechnung contains errors, almost always in the landlord's favor. If you do not check yours, you are probably paying too much.

TL;DR: The Nebenkostenabrechnung is an annual statement your landlord sends comparing your monthly Nebenkosten prepayment against actual building operating costs. The national average is 2.67 EUR/sqm/month (Betriebskostenspiegel 2024). Your landlord has 12 months after the billing period to send it, and you have 12 months after receiving it to dispute. Heating must be split 50-70% by consumption and 30-50% by floor area. Management fees, repairs, and modernization costs are never allowed.

About half of all statements contain errors. Always check yours against the data below and use our Nebenkosten Checker tool.

Table of Contents

01What Is a Nebenkostenabrechnung? 02The 17 Cost Categories 03Average Costs per Square Meter 04Nebenkosten Checker Tool 05How Heating Costs Are Split 06Costs Your Landlord Cannot Charge 07Legal Deadlines 08How to Dispute Step by Step 09CO2 Cost Sharing (New Since 2023) 10Cable TV: No Longer in Nebenkosten 11Common Mistakes 12FAQ

What Is a Nebenkostenabrechnung?

A Nebenkostenabrechnung (also called Betriebskostenabrechnung) is the annual reconciliation of building operating costs that your landlord is legally required to provide. It covers one billing period, usually the calendar year.

Here is how it works in practice. When you sign your lease, you agree to a monthly Nebenkosten prepayment (Vorauszahlung) on top of your base rent (Kaltmiete). Maybe it is 150 EUR, maybe 250 EUR. Throughout the year, you pay this amount every month. After the year ends, your landlord adds up the actual operating costs for the entire building, divides them among all tenants by a distribution key (usually floor area), and sends you the final bill.

If your prepayments exceeded the actual costs, you get a refund (Guthaben). If they fell short, you owe a surcharge (Nachzahlung). Simple concept, but the devil is in the 17 cost categories and the allocation math.

National average

2.67 EUR/sqm

Per month, Betriebskostenspiegel 2024

80 sqm apartment

2,563 EUR/yr

Average annual Nebenkosten

If all 17 items apply

3,533 EUR/yr

80 sqm at 3.68 EUR/sqm/month max

The 17 Cost Categories (Betriebskostenverordnung)

German law defines exactly which costs a landlord can pass to tenants. The Betriebskostenverordnung (BetrKV) lists 17 categories in SS 2. If a cost does not fit into one of these categories, it cannot legally appear on your Nebenkostenabrechnung.

#	German Name	English	Avg EUR/sqm/mo
1	Grundsteuer	Property tax	0.18
2	Wasserversorgung	Water supply	0.29 combined
3	Entwasserung	Wastewater/drainage	0.29 combined
4	Heizung	Central heating	1.32 combined
5	Warmwasser	Hot water supply
6	Verbundene Anlagen	Combined heating/hot water
7	Aufzug	Elevator operation	0.20
8	Strassenreinigung / Mull	Street cleaning / waste disposal	0.20 combined
9	Gebaudereinigung / Schadlingsbekampfung	Building cleaning / pest control	0.21
10	Gartenpflege	Garden maintenance	0.15
11	Beleuchtung	Common area lighting	0.06
12	Schornsteinreinigung	Chimney sweeping	0.04
13	Sach-/Haftpflichtversicherung	Property & liability insurance	0.31
14	Hauswart	Caretaker/janitor	0.21
15	Gemeinschaftsantenne/Kabel	Antenna/cable TV	0.07*
16	Waschepflege	Laundry facilities	rare
17	Sonstige Betriebskosten	Other operating costs	0.07

*Cable TV privilege ended 30 June 2024. This category will shrink or disappear in future bills. Source: Betriebskostenspiegel 2024, Deutscher Mieterbund.

Average Costs per Square Meter (2024 Data)

The Deutscher Mieterbund publishes the Betriebskostenspiegel annually using data from thousands of rental properties across Germany. The 2024 edition (published December 2025) shows the national average Nebenkosten at 2.67 EUR per square meter per month, a 6% increase over 2023.

Heating and hot water dominate at 1.32 EUR/sqm/month, roughly half of total Nebenkosten. The range varies enormously: from 0.46 EUR/sqm in efficient, well-insulated buildings to 2.18 EUR/sqm in older buildings with poor insulation and outdated boilers. This is why your building's energy class matters so much for your wallet.

How to benchmark your bill:

Take the total Nebenkosten from your statement
Divide by 12 to get the monthly figure
Divide by your apartment size in sqm
Compare against 2.67 EUR/sqm/month (national average) or 3.68 EUR/sqm/month (maximum if all categories apply)
If your number is significantly above 3.68 EUR/sqm/month, something may be wrong

Nebenkosten Checker

We built this tool so you can enter your apartment size and monthly prepayment, then compare your costs against the national averages. It breaks down every category and tells you whether to expect a refund or surcharge.

Nebenkosten Checker

Based on DMB Betriebskostenspiegel 2024. Enter your apartment details to see expected ranges.

Apartment size (m²)

Your Nebenkosten prepayment/month

€

ElevatorGarden

Avg / month

€198

€73 to €345 range

Avg / year

€2371

€881 to €4142 range

Category	Per m²/mo	Your avg/mo	Your avg/yr
Heizung & Warmwasser Heating & hot water	€1.32	€86	€1030
Versicherungen Property insurance	€0.31	€20	€242
Wasser / Abwasser Water & wastewater	€0.29	€19	€226
Hauswart Caretaker	€0.21	€14	€164
Gebaudereinigung Building cleaning	€0.21	€14	€164
Grundsteuer Property tax	€0.18	€12	€140
Mullbeseitigung Waste disposal	€0.16	€10	€125
Gartenpflege Garden maintenance	€0.15	€10	€117
Beleuchtung Lighting	€0.06	€4	€47
Schornsteinreinigung Chimney sweep	€0.04	€3	€31
Strassenreinigung Street cleaning	€0.04	€3	€31
Sonstige Miscellaneous	€0.07	€5	€55
Total	€3.04	€198	€2371

Source: Deutscher Mieterbund, Betriebskostenspiegel 2024 (published Dec 2025). Actual costs vary by city, building age, and energy efficiency.

How Heating Costs Are Split

Heating is the single largest cost item on your Nebenkostenabrechnung, and it is also the most regulated. The Heizkostenverordnung (HeizkostenV) dictates exactly how heating costs must be divided among tenants in buildings with central heating.

Under SS 7 HeizkostenV, heating costs must be split into two components:

Component	Share	How It Works
Verbrauchsanteil (consumption share)	50% to 70%	Based on your individual heat meter readings. Use more heat, pay more.
Flachenanteil (area share)	30% to 50%	Based on your apartment size relative to the building. Fixed regardless of consumption.

Your landlord chooses the exact split within these legal limits. A 70/30 consumption-to-area split rewards energy-saving tenants. A 50/50 split spreads costs more evenly. The same rules apply to hot water costs under SS 8.

If your Nebenkostenabrechnung allocates heating costs 100% by floor area, that is illegal. Same if it does 100% by consumption. Both the consumption share and area share must be present.

Special case for older buildings:

In poorly insulated buildings that use oil or gas heating and have uninsulated exposed heating pipes, the law requires exactly 70% by consumption. This prevents a situation where tenants with pipes running through their apartments overpay because of heat loss they cannot control.

Costs Your Landlord Cannot Charge You

This is where most errors and overcharges happen. Only recurring operating costs (laufende Betriebskosten) from the 17 BetrKV categories are allowed. The following costs must never appear on your Nebenkostenabrechnung:

Not Allowed	German Term	Why
Property management fees	Verwaltungskosten	Explicitly excluded by BetrKV SS 1. This is the landlord's administrative cost.
Maintenance costs	Instandhaltungskosten	Maintaining the building structure is the landlord's responsibility.
Repair costs	Instandsetzungskosten	Fixing broken items, replacing parts. Includes elevator repairs, which the DMB specifically flags as "never Betriebskosten."
Modernization costs	Modernisierungskosten	Upgrades beyond basic maintenance (unless separately agreed as rent increase under SS 559 BGB).
Landlord's personal insurance	Rechtsschutz, Hausrat	Only building insurance (Gebaude, Haftpflicht) is allocable. The landlord's legal or contents insurance is not.
Caretaker repair/admin work	Hauswart-Reparaturen	If the Hauswart does repairs or admin tasks, that portion must be excluded from Betriebskosten.
One-time costs	Einmalige Kosten	Betriebskosten must be recurring (laufend). A one-off pest treatment or construction dumpster does not qualify.

If you see any of these on your bill, you have a valid reason to dispute. We have seen landlords sneak Verwaltungskosten into the Hauswart line or bury repair costs under Sonstige Betriebskosten. Check every line.

Legal Deadlines You Need to Know

German law sets strict deadlines that protect tenants. Knowing these dates can save you hundreds of euros.

D Key Deadlines (SS 556 BGB)

Landlord must send the statement within 12 months

SS 556 Abs. 3 Satz 2 BGB: The Nebenkostenabrechnung must reach you within 12 months after the billing period ends. For a January-December 2025 billing period, the deadline is 31 December 2026. If the landlord misses this deadline, they lose the right to demand any additional payment (Nachforderung). You can still claim a refund, though.

12 months after billing period

You have 12 months to dispute after receiving it

SS 556 Abs. 3 Satz 5 BGB: Once you receive the statement, you have 12 months to raise written objections (Einwendungen). After this window closes, you forfeit your right to dispute. Mark the date you received it on the envelope.

12 months after receipt

You can inspect all invoices (Belegeinsicht)

SS 556 Abs. 4 BGB: You have the right to see all underlying invoices, contracts, and receipts that form the basis of your Nebenkostenabrechnung. Request this in writing. The landlord can provide them electronically.

Any time during dispute window

Surcharge payment is due within 30 days

If you owe a Nachzahlung, it is typically due within 30 days of receiving the statement. Pay it, but dispute simultaneously if you think there are errors. Paying does not waive your right to dispute.

30 days after receipt

How to Dispute Your Nebenkostenabrechnung Step by Step

Found something suspicious? Here is the exact process we recommend.

! Dispute Process

Note the date you received the statement

Write it on the envelope or take a photo. Your 12-month dispute window starts from this date, not the date printed on the document.

Day 1

Check every line against the 17 categories

Use the table above. Is the landlord charging for something outside the BetrKV categories? Are there repair costs, management fees, or one-time charges hidden in the numbers?

Week 1

Compare amounts against national averages

Use our Nebenkosten Checker above. If a specific line item is far above the national average (e.g., Hauswart at 0.50 EUR/sqm when the average is 0.21), request to see that specific invoice.

Week 1

Request Belegeinsicht (invoice inspection)

Write to your landlord: "Gemaess SS 556 Abs. 4 BGB bitte ich um Einsicht in die der Abrechnung zugrundeliegenden Belege." Send via registered mail (Einschreiben mit Rueckschein).

Week 2

Submit your written objection

List each specific error with the correct amount. Example: "Position Hauswart enthaelt Reparaturkosten in Hoehe von [amount], die gemaess BetrKV SS 1 keine umlagefaehigen Betriebskosten sind." Always use registered mail.

Within 12 months

Escalate if landlord does not respond

Join a Mieterverein (tenant association) for legal support. Membership costs 50 to 100 EUR per year and gives you access to lawyers who handle disputes. In many cities, the Mieterverein will review your Nebenkostenabrechnung for free as part of membership.

If needed

Important: pay first, dispute second

Even if you plan to dispute, pay any Nachzahlung within the payment deadline. Withholding payment does not strengthen your position and can create additional legal problems. Once your dispute succeeds, the landlord must refund the overpayment. Paying under protest (Zahlung unter Vorbehalt) is explicitly allowed.

Since January 2023, the CO2 carbon tax on fossil fuels used for heating is shared between landlords and tenants based on the building's energy efficiency. This was a major shift: before 2023, tenants paid 100% of the CO2 cost.

The CO2 price per tonne rose from 25 EUR in 2021 to 45 EUR in 2024, then to 55 EUR in 2025. For 2026, it moves to an auction-based corridor of 55 to 65 EUR per tonne. The sharing model works on a 10-step scale:

Building CO2 Emissions (kg/sqm/yr)	Tenant Pays	Landlord Pays
Under 12 (very efficient)	100%	0%
12 to under 17	90%	10%
17 to under 22	80%	20%
22 to under 27	70%	30%
27 to under 32	60%	40%
32 to under 37	50%	50%
37 to under 42	40%	60%
42 to under 47	30%	70%
47 to under 52	20%	80%
52 or more (very inefficient)	5%	95%

Check your Nebenkostenabrechnung for a separate CO2 line. If your building has poor insulation (common in Altbau buildings) and the landlord is passing 100% of the CO2 cost to you, that violates the CO2KostAufG. You can dispute it.

To find your building's CO2 emissions class, check the Energieausweis (energy certificate) that the landlord must have. You are entitled to see it.

Cable TV: No Longer in Your Nebenkosten

The Nebenkostenprivileg for cable TV ended on 30 June 2024 after a three-year transition period. Before this date, landlords with bulk cable contracts could pass the cost to all tenants through Nebenkosten, regardless of whether individual tenants used cable TV.

As a result, the cable/antenna line item (category 15) dropped roughly 42% in the 2024 Betriebskostenspiegel compared to prior years. By 2025 billing, this category should be near zero or absent entirely from most Nebenkostenabrechnungen.

One exception remains: landlords may still allocate costs for in-building fiber-optic distribution infrastructure (Glasfaser-Hausverteilung) up to 60 EUR per year per residential unit, capped at 540 EUR total per unit. This only covers the passive cable infrastructure, not any service subscription.

If your 2025 or 2026 Nebenkostenabrechnung still includes a full cable TV subscription fee, dispute it. The privilege is gone.

Common Mistakes

Not checking the statement at all

The Mieterbund estimates that every second Nebenkostenabrechnung contains errors. Most expats glance at the total, sigh, and pay. That 300 EUR Nachzahlung might be 150 EUR after you catch the errors. Always review line by line.

Missing the 12-month dispute deadline

Your clock starts ticking the day you receive the statement, not when you get around to reading it. If you receive it on 15 March 2026, your deadline is 15 March 2027. Write the date on the envelope immediately.

Not requesting Belegeinsicht

You have a legal right under SS 556 Abs. 4 BGB to see every invoice behind the numbers. Most tenants never exercise this right. If a line item looks too high, ask to see the actual receipts. Many landlords will correct errors once they know you are paying attention.

Accepting Verwaltungskosten on the bill

Property management fees (Verwaltungskosten) are the most commonly hidden illegal charge. They sometimes appear as a standalone line or get buried inside "Sonstige Betriebskosten" or the Hauswart position. They are explicitly excluded by BetrKV SS 1.

Withholding payment while disputing

Many tenants think they can refuse to pay the Nachzahlung while the dispute is ongoing. This is risky and can lead to late payment consequences. Pay the amount, note "Zahlung unter Vorbehalt" (payment under reservation) on the transfer, and dispute in parallel. The landlord must refund overpayments.

Not checking the distribution key

Most costs are allocated by floor area (Wohnflache). But is the landlord using the correct total building area? If they renovated and split a large apartment into two units, the total area and your share percentage change. An incorrect Verteilerschluessel affects every single line item.

Frequently Asked Questions

What is a Nebenkostenabrechnung in Germany?

Q: How long does my landlord have to send the Nebenkostenabrechnung? 12 months after the billing period ends (SS 556 Abs. 3 BGB). For a January-December 2025 billing year, the deadline is 31 December 2026. After that, the landlord cannot demand additional charges.

How much are average Nebenkosten per square meter in Germany?

Q: What costs can my landlord NOT charge through Nebenkosten? Property management (Verwaltungskosten), repairs (Instandhaltung/Instandsetzung), modernization, the landlord's personal insurance (legal, contents), the repair portion of caretaker work, and any non-recurring one-time costs. Only the 17 categories in BetrKV SS 2 are legal.

How long do I have to dispute my Nebenkostenabrechnung?

Q: How are heating costs split between tenants? Under the Heizkostenverordnung SS 7, 50% to 70% must be based on your measured consumption and 30% to 50% based on your floor area. The landlord chooses the exact ratio. The same applies to hot water (SS 8).

What is the CO2 cost sharing rule?

Q: Do I still pay cable TV through Nebenkosten? No. The cable TV Nebenkostenprivileg ended 30 June 2024. Landlords can no longer pass bulk cable costs to tenants. You choose your own provider. Exception: fiber-optic building infrastructure up to 60 EUR/year per unit.

Bottom Line

Your Nebenkostenabrechnung is not a take-it-or-leave-it document. It is a legally regulated statement that must follow strict rules about what can be charged, how costs are split, and when it must arrive. About half of them contain errors. Use the 17-category table and our Nebenkosten Checker to verify every line. If something looks off, request Belegeinsicht, and dispute in writing within 12 months. Joining a Mieterverein (50 to 100 EUR/year) gets you legal support and a professional review of your bill. For many expats, the first dispute pays for the membership several times over.

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Last updated and verified: May 2026. Costs and regulations may vary. Confirm current details with your local Mieterverein or Mieterbund.

Sources: SS 556 BGB · Betriebskostenverordnung (BetrKV) · Heizkostenverordnung · Deutscher Mieterbund Betriebskostenspiegel 2024 · CO2KostAufG

Nebenkostenabrechnung 2026: How to Read and Dispute Your German Utility Bill

What Is a Nebenkostenabrechnung?

The 17 Cost Categories (Betriebskostenverordnung)

Average Costs per Square Meter (2024 Data)

Nebenkosten Checker

Nebenkosten Checker

How Heating Costs Are Split

Costs Your Landlord Cannot Charge You

Legal Deadlines You Need to Know

How to Dispute Your Nebenkostenabrechnung Step by Step

Cable TV: No Longer in Your Nebenkosten

Common Mistakes

Frequently Asked Questions

Bottom Line

Continue Your Journey

Anmeldung in Germany: How to Register Your Address (2026 Guide)

Nebenkostenabrechnung 2026: How to Read and Dispute Your German Utility Bill

What Is a Nebenkostenabrechnung?

The 17 Cost Categories (Betriebskostenverordnung)

Average Costs per Square Meter (2024 Data)

Nebenkosten Checker

Nebenkosten Checker

How Heating Costs Are Split

Costs Your Landlord Cannot Charge You

Legal Deadlines You Need to Know

How to Dispute Your Nebenkostenabrechnung Step by Step

CO2 Cost Sharing (Kohlendioxidkostenaufteilungsgesetz)

Cable TV: No Longer in Your Nebenkosten

Common Mistakes

Frequently Asked Questions

Bottom Line

Continue Your Journey

Anmeldung in Germany: How to Register Your Address (2026 Guide)