CO2 Cost Split 2025: What Tenants in Germany Need

Utilities & Service Charge Billing 3 min read · published September 07, 2025
Many tenants in Germany wonder how the CO2 cost split from 2025 will affect their service charge statement, especially students on a tight budget. This guide explains in plain language which service charges landlords may pass on, which legal bases apply and how to review and, if necessary, dispute surcharge demands. You will learn which deadlines to observe, which receipts to collect and which official forms help with court steps. Practical tips explain how to object correctly, document evidence and when legal aid may be appropriate. The text is aimed specifically at tenants in Germany and sets out understandable steps for everyday billing and surcharge issues.

How does the CO2 cost split 2025 affect tenants in Germany?

From 2025, new allocations for CO2 pricing may appear in service charge statements if permitted by the rental agreement or service charge agreement. It is decisive whether the costs are agreed as allocable operating costs and whether the statement is transparent and verifiable. Relevant legal bases are the Bürgerliches Gesetzbuch (BGB) and the Betriebskostenverordnung and Heizkostenverordnung.[1][2][3]

In most cases, landlords may only pass on operating costs in accordance with the rental agreement and the BetrKV.

Practical steps for a surcharge

Follow these steps methodically if you receive a surcharge:

  • Check statement and receipts (evidence)
  • Check form and formal errors and, if necessary, object in writing (notice)
  • Observe deadlines: respond promptly, within reasonable time frames (time)
  • Collect technical evidence for heating or maintenance issues (repair)
Document all payments and communications with the landlord.

What belongs in a formal objection?

An objection should be briefly justified, point out missing or unclear evidence and set a deadline for a response. Specify which items you dispute and request copies of the underlying receipts. If it concerns heating costs or CO2 allocations, briefly describe which calculations or measurement data are missing.

When is legal action worthwhile?

Legal action is worthwhile if the landlord refuses to provide receipts, ignores deadlines or the surcharge is unusually high. Low-income tenants can apply for legal aid (PKH) and advice assistance; check these options early. Court proceedings usually take place at the local court (Amtsgericht), with appeals to the regional court (Landgericht) and, in precedent-setting cases, the Federal Court of Justice (BGH).

Respond to deadlines promptly, otherwise rights can be lost.

Frequently Asked Questions

Can the landlord simply pass on the CO2 costs?
Only if the rental agreement or a legally permissible agreement designates the costs as allocable and the statement is comprehensible.
What deadline do I have to object to a service charge statement?
There is no single statutory objection period for all cases; however, respond within a few weeks and at the latest within statutory review and limitation periods.
Where are billing disputes heard?
Billing disputes are usually heard at the local court (Amtsgericht); for larger amounts there are appeals to the regional court and possibly the Federal Court of Justice.

How-To

  1. Gather receipts and the statement completely and arrange them chronologically (evidence)
  2. Send a written objection: briefly justify and request copies of receipts (notice)
  3. If there is no response set a deadline and warn of legal steps (time)
  4. If necessary prepare a lawsuit and consider applying for legal aid (court)

Help and Support / Resources


  1. [1] Bürgerliches Gesetzbuch (BGB) §§ 535–580a
  2. [2] Betriebskostenverordnung (BetrKV)
  3. [3] Heizkostenverordnung (HeizKV)
Bob Jones
Bob Jones

Editor & Researcher, Tenant Rights Germany

Bob writes and reviews tenant law content for various regions. They’re passionate about housing justice and simplifying legal protections for tenants everywhere.