Legal Compliance
Real Estate Antitrust Laws Explained
Antitrust law prohibits anti-competitive agreements between competing businesses. In real estate, violations most commonly involve commission rate fixing or market allocation — and they carry criminal penalties.
The Sherman Antitrust Act and Real Estate
The Sherman Antitrust Act (1890) is the primary federal antitrust law. It prohibits contracts, combinations, and conspiracies that restrain trade. Real estate brokerages are subject to antitrust law just like any other business.
Real estate commissions are negotiable and must be independently set by each brokerage. Any agreement between competing brokerages to set a standard commission rate is per se illegal — regardless of whether the rate seems reasonable.
The NAR Code of Ethics and state license law both reinforce antitrust compliance. Many states require antitrust training as part of continuing education.
Key Antitrust Violations
Price Fixing
An agreement between competing businesses to set prices at a specific level. In real estate: brokerages agreeing to charge the same commission rate. Per se illegal — intent doesn't matter.
Market Allocation
Competing businesses agreeing to divide geographic areas or customer segments between themselves. Example: two brokerages agreeing that one will handle the west side of town and the other the east side.
Group Boycott
Competing businesses agreeing to refuse to deal with a third party. Example: several brokerages agreeing not to cooperate with a new discount brokerage in the market.
Tie-In Arrangement
Requiring a buyer to purchase one product as a condition of purchasing another. Example: requiring a buyer to use the brokerage's affiliated title company as a condition of representation.
Antitrust FAQ
Are all real estate commissions the same?
No — commissions are always negotiable. Any statement by an agent that 'commissions are always X%' or 'this is the standard commission' could be an antitrust red flag. Each brokerage independently determines its commission structure.
What are the penalties for antitrust violations?
Sherman Act violations are federal crimes. Criminal penalties include fines up to $100 million for corporations and $1 million for individuals, plus up to 10 years in prison. Civil lawsuits can result in treble damages (3x the actual harm).
Can an agent discuss commission with a competing agent?
Discussing commission rates with competitors is extremely risky. Even casual conversations that could be construed as rate-setting agreements can trigger antitrust exposure. Agents should never discuss their brokerage's commission structure with competing agents.
Is MLS cooperation an antitrust violation?
No. MLS participation and cooperation rules are not antitrust violations when participation is voluntary and terms are transparent. The key is that each brokerage independently sets its own compensation — the MLS just facilitates disclosure of that compensation to cooperating agents.