What is a MLS or Multiple Listing Service?

A Multiple Listing Service — almost always just called the MLS — is the shared database real estate brokers use to market their listings to every other broker and agent in the area. It’s the engine behind most home sales.

How the MLS works

When a broker lists a home, they enter it into the MLS so thousands of other agents can find it for their buyers. Sellers benefit from huge exposure; buyers benefit because a single agent can show them virtually any listed home. It also levels the playing field — a small independent brokerage and a national franchise see exactly the same listings.

MLS systems are owned and operated by local and regional REALTOR® associations. In our area, the Houston Association of REALTORS® runs the HAR MLS — one of the largest in the country — and there are separate systems like the Bryan–College Station MLS. Because I belong to both, I can serve clients across a wide stretch of Texas.

What changed in 2024

One important update: following the August 2024 industry settlement, the MLS can no longer display offers of compensation to buyer’s agents. That’s now negotiated separately and in writing — see how buyer’s agent compensation works in Texas for the details.

The MLS vs. the public portals

Sites like Zillow pull from the MLS but often show delayed or incomplete data. My buyers get the live HAR MLS feed through the free Houston Prime Realty app, so they see new listings in real time. Learn more on the home-buying page.

Last updated: June 2026 · Reflects post-NAR-settlement MLS rules.