Zillow and Redfin Settle FTC Antitrust Case Over Rental Advertising Partnership
Zillow and Redfin have settled an antitrust lawsuit brought by the U.S. Federal Trade Commission and five states, ending a legal battle over a 2025 partnership that regulators said suppressed competition in the online rental advertising market. The settlement was announced on August 24, 2026, the same day the case was headed toward trial.
The FTC sued both companies in September 2025 over a deal struck in February of that year. Under the arrangement, Redfin agreed to display Zillow's rental listings on its websites rather than compete directly with Zillow for rental advertisers. According to the FTC and attorneys general from Arizona, Connecticut, New York, Virginia, and Washington, Zillow paid Redfin $100 million to stay out of the rental advertising business. The arrangement could have kept Redfin on the sidelines for as long as nine years.
Redfin owns Rent.com and ApartmentGuide.com, two major rental-listing platforms, which made its withdrawal from direct competition particularly significant. The FTC's complaint alleged the February 2025 agreement was designed to dismantle Redfin as a competitor in what regulators call Internet Listing Services, or ILS — the platforms where landlords and property managers pay to advertise rental vacancies. The FTC said the deal would likely raise prices for advertising apartment vacancies and reduce competition in a market it described as already highly concentrated.
Zillow and Redfin contested the lawsuit. Zillow sought dismissal of the case in February 2026, calling the rental partnership procompetitive. A federal judge rejected the companies' efforts to end or dismiss the lawsuit in May 2026, allowing the case to proceed toward trial.
Under the proposed settlement, Redfin is required to reenter the rental advertising business. The FTC order removes restrictions that previously limited Redfin's ability to compete independently for property-management customers. Redfin may continue displaying Zillow's rental listings but will again be able to compete for its own customers, sell advertising, display listings from its own clients, and pursue new rental customers without sharing sensitive business information with Zillow.
The settlement resolves a case that tested how antitrust enforcement applies to market division agreements in digital advertising. The ILS market, where landlords pay to list rental vacancies on platforms like Zillow, Redfin, Apartments.com, and others, has consolidated over the past decade as larger platforms acquired smaller competitors. The FTC's argument drew on Section 5 of the FTC Act and parallel state antitrust statutes, claiming that a nine-year paid withdrawal by a major platform constituted an unreasonable restraint of trade.
The remedy is structural rather than purely monetary. Redfin is not only permitted but required to resume competing, and the order specifically bars information-sharing between the two companies going forward. That second provision matters because in two-sided advertising markets — where platforms connect advertisers on one side with consumers on the other — competitive harm often comes not just from reduced output but from shared pricing data and quiet coordination between platforms that should be competing for the same advertisers.
The case fits within a broader FTC enforcement posture under the current administration that has scrutinized agreements between ostensible competitors in digital markets, particularly where one party is paid to stay out of a segment. Whether this settlement deters similar arrangements in adjacent areas, such as mortgage or title services where the same platforms operate, is an open question.
For the rental advertising market specifically, the practical effect is that Redfin's owned platforms, Rent.com and ApartmentGuide.com, rejoin the competitive set. Whether Redfin can rebuild advertiser relationships and market share after stepping away is a commercial question the settlement does not address. The order forces entry back into the market. It does not guarantee success there.
The broader context here is that the settlement is notable less for its immediate market impact than for the precedent it sets around paid non-compete arrangements between digital platforms. The $100 million payment Zillow made to Redfin was the transaction that turned what might have been a routine listing syndication deal into an antitrust case. The FTC's willingness to litigate that structure, survive a motion to dismiss, and extract a reentry requirement signals that similar deals in other two-sided markets will face meaningful scrutiny. For platforms that have grown through acquisition and partnership rather than organic competition, that is a meaningful signal.
