BGH Broker Fee Ruling: Half-Split Has Limits

Germany’s highest civil court has set a clear limit on one of the most important consumer protections in the housing market. In a broker fee ruling handed down on July 16, 2026, the Bundesgerichtshof (BGH), the Federal Court of Justice, decided that the legal rule forcing sellers to carry at least half of the broker commission applies only to properties that objectively qualify as single-family homes. A house with two rented flats does not count, the judges found in case I ZR 111/25, even if the buyer later says he wants to live in it with his family as one household.

The decision matters well beyond the individual dispute. Broker commissions, known in Germany as the Maklerprovision, often run to several percent of the purchase price, so tens of thousands of euros can hinge on whether the half-split protection applies. For anyone planning a purchase, the ruling turns a seemingly technical question, namely what kind of house is this, into a decisive financial issue.

What the BGH broker fee ruling decided

The case turned on Section 656c of the Civil Code (BGB), which contains the so-called Halbteilungsgrundsatz, the half-split principle. Since the rule took effect in late December 2020, a broker who works for both sides of a sale involving a single-family home or an apartment may charge the buyer at most half of the total commission. Agreements that push more than half onto the buyer are invalid.

According to the BGH press release, the protection depends on the objective character of the property. The judges held that a building’s status must be assessed at the moment the broker contract is concluded. If the objective circumstances do not show that the property will primarily serve the housing needs of a single household, the buyer must actively disclose that intention at that point. A change of plans announced later cannot transform a two-family house into a single-family home in the eyes of the law.

A two-unit house at the centre of the dispute

The property in question was advertised as a rented Zweifamilienhaus, a two-family house, and both flats were occupied by tenants when the sale went through. Only after signing the broker contract did the buyer tell the agent that he intended to move in himself and use the building as a home for one household. He then argued that the half-split rule should apply and that the commission demand against him was excessive.

The lower courts in Berlin saw it differently, and the BGH has now confirmed their view. As the legal news service LTO reports, the Landgericht Berlin II sided with the broker in August 2024, the Kammergericht upheld that judgment in April 2025, and the Federal Court of Justice has rejected the buyer’s final appeal. The broker’s full commission claim against the buyer stands.

Why the broker fee ruling turns on timing

The heart of the decision is timing. The judges made clear that everything depends on what the broker could recognise when the contract with the buyer was concluded. A property rented to two separate tenant households, marketed as an investment object, is objectively not a single-family home at that moment, whatever the buyer privately intends.

Legal commentators note that the ruling continues a line the court began drawing in two decisions of March 2025, which also dealt with the scope of Section 656c. According to beck-aktuell, the practical message is that buyers who want the protection of the half-split rule must make their planned use visible early, ideally in writing, before the broker contract is signed. Silence at that stage can cost real money later.

How the half-split rule normally protects buyers

In much of Germany it is common for the seller to commission the broker, while the buyer is asked to sign a separate commission agreement during the viewing process. Before 2020, buyers in some regions routinely paid the entire fee. The reform behind Section 656c was designed to stop that practice for owner-occupied homes and apartments, on the logic that the party who hires the broker should carry at least half the cost.

The new decision does not weaken that protection for genuine single-family homes and condominiums. It simply confirms that the law does not stretch to rental properties with several units, which the legislator treated as investment purchases rather than home purchases. Buyers of multi-unit buildings therefore remain free to negotiate the commission, but they cannot rely on the statutory cap.

What this means for expat home buyers

For internationals buying in Germany, the ruling suggests a short practical checklist. First, check how the property is described in the listing and in the land register documents, because that objective description now largely decides whether the half-split protection applies. Second, if you plan to occupy a building that is currently divided or rented, state that intention clearly before signing any broker agreement, and keep proof. Third, read every commission clause carefully and compare it with the purchase price, since the fee is usually a percentage. Our guide to buying property in Germany explains how the Maklerprovision fits into the overall cost of a purchase.

Finally, do not hesitate to get advice before you sign rather than after. Commission disputes like this one run through three court instances and take years. A short consultation with a property lawyer, for example through services listed in our overview of legal services for expats, is far cheaper than litigating a five-figure broker fee ruling of your own.