Almost everything about how Americans buy homes — the listings, the agents, the commissions, the contracts, the closing rituals — was shaped by a small set of decisions made between roughly 1908 and 1960. Understanding those decisions is the fastest way to understand why the industry is being unbundled now, and why a 6% commission paid in cash at closing was never inevitable. It was engineered.
Before the MLS: a fragmented private market
In the late nineteenth century, residential real estate in the United States was a hyper-local affair. Buyers worked with one or two brokers, brokers kept their inventory in private books, and listings rarely traveled outside a single firm. There was no standardized way to search, no standardized contract, and no standardized commission. Prices were opaque, fraud was common, and the term 'realtor' did not yet exist.
The National Association of Real Estate Exchanges — later renamed the National Association of Realtors — was founded in 1908 to fix this. Its early work was procedural: codes of ethics, training programs, and standardized listing forms. But its most consequential creation was the Multiple Listing Service.
The MLS: cooperation as a competitive moat
The MLS was a deceptively simple idea. Member brokerages would share their listings with one another, and any member could sell any listing in exchange for a share of the commission. For sellers, this meant their home was suddenly visible to every agent in town instead of just one firm. For buyers, it meant a single agent could show them homes from any brokerage. For brokerages, it meant cooperation became more profitable than secrecy.
By the 1950s, MLSs had spread across the country, almost always operated by local Realtor associations. To put a home on the MLS, the listing brokerage had to commit, in writing, to share the commission with whichever brokerage brought the buyer. That single rule — the cooperative compensation rule — quietly defined American residential real estate for the next seventy years.
How 6% became 'standard'
There was never a federal law setting the commission at 6%, and any agent will tell you commissions are 'always negotiable.' In practice, they were almost never negotiated. The reason is structural. A listing agent who offered the buyer-side broker less than the going rate risked their listing being shown less often, because buyer agents — quite humanly — preferred to show homes that paid them more. Over time, a strong norm crystallized at roughly 5–6% of the sale price, split evenly between the two sides.
This norm survived for two reasons. First, the buyer never wrote the check, so the buyer never felt the cost. Second, the commission was hidden inside the seller's listing agreement and not displayed to consumers. A market price is only a market price when the parties paying it can see it and respond to it. The buyer-broker commission failed both tests.
The internet arrived — and didn't break it
The first prediction many people made about the internet, in the late 1990s, was that it would crush real-estate commissions the way it crushed travel-agent commissions. It did not. Sites like Realtor.com, Zillow, Redfin, and Trulia made listings searchable by consumers, and that should, in theory, have eaten the buyer-agent's role at the search stage. But because the commission was bundled into the seller's contract, sellers had no incentive to demand a discount on a fee they didn't directly pay, and buyers had no power to demand one either.
What the internet did instead was professionalize the search experience without changing its economics. Buyers became more informed. Agents became more like concierges. The 6% held, even as the work behind it shrank.
Discount brokerages and rebate experiments
Throughout the 2000s and 2010s, a series of discount and rebate brokerages tested the bundled-commission model. Redfin offered salaried agents and rebated a portion of the buyer-side commission. Companies like Trelora, Houwzer, and Reali experimented with flat-fee listings and buyer rebates. Some succeeded regionally; most struggled to scale.
The structural problem was always the same. As long as MLS rules required the listing brokerage to offer compensation to the buyer's broker, and as long as that compensation was published only to other agents, the consumer never saw the line item and the market couldn't price it. Discount brokerages were swimming against a tide they couldn't see.
The Sitzer/Burnett verdict and the NAR settlement
In October 2023, a federal jury in Missouri returned a verdict against the National Association of Realtors and several major brokerages in the Sitzer/Burnett case, finding that the cooperative compensation rule constituted an antitrust conspiracy that artificially inflated commissions. The damages, before trebling, were $1.78 billion. In March 2024, NAR announced a $418 million settlement and — far more importantly — agreed to two structural changes that took effect in August 2024.
- MLSs were prohibited from publishing offers of buyer-broker compensation. The cooperative compensation rule, in its old form, was over.
- Buyers must sign a written buyer-broker agreement, with compensation explicitly stated, before touring homes with an agent.
These two changes don't outlaw buyer-agent commissions. They make them visible and negotiated. That is the first time in the history of American residential real estate that the buyer-side fee has been a normal market price rather than a coordinated norm.
Why AI is the second shoe to drop
If the NAR settlement made the buyer-broker fee visible and negotiable, AI is what makes it small. For seventy years, the agent's leverage came from access to information and access to forms. The MLS gave them the listings; the state board gave them the contract templates; experience gave them the ability to read a comp sheet or spot a flag in a disclosure packet. None of those is scarce anymore.
A modern AI-powered brokerage can generate, in seconds, a comparable-sales analysis that took an experienced agent twenty minutes; a hazard and disclosure summary that took an hour; a draft offer on the correct state form that took thirty minutes. The work doesn't disappear — it just stops being the bottleneck. And once the work isn't the bottleneck, paying a percentage of the home's price for it stops making sense. The fee collapses toward the marginal cost of the licensed human review the law still requires.
Where this lands
The end state most people in the industry now expect — and the one Zeego is built for — looks like this. Sellers list with low-fee or flat-fee listing brokerages. Buyers run their own search and diligence on AI-native platforms. A licensed digital brokerage handles the offer, contract, and close for a fraction of the historical fee, and rebates the rest to the buyer at closing. The 6% commission isn't outlawed; it's just out-competed.
Sixty years from now, the bundled 6% commission will look the way fixed brokerage commissions on Wall Street looked after May 1, 1975 — a coordination artifact of a pre-internet era, briefly defended, then swept away. The only real question is how much money buyers and sellers leave on the table between now and then. For buyers in California, Zeego's answer is simple: keep up to 1.75% of it.