New York bans AI rent price-fixing algorithms

If you rent an apartment, you have probably noticed that every building in your neighborhood seems to raise rents in perfect lockstep, with zero room to negotiate.

It turns out that was not just market forces at play. On Thursday, New York Governor Kathy Hochul signed legislation outlawing the use of algorithmic price-fixing software by landlords. New York is now the first state in the nation to enact a statewide ban, following city-level restrictions in Jersey City, Philadelphia, San Francisco, and Seattle.

The new law takes effect in 60 days.

Algorithms are now illegal colluders

Companies like RealPage have long pitched their algorithms to landlords as yield optimization tools. The software calculates optimal daily rents, suggests the ideal number of tenants per unit, and recommends renewal terms to maximize revenue.

To do that, the algorithms rely on private, proprietary lease data shared across competing landlords. Governor Hochul called these systems out directly, noting that private data algorithms distort the housing market and squeeze tenants during an unprecedented affordability crisis.

The real teeth of the New York bill come down to legal liability. The law does not just ban using the software to set lease terms; it specifies that property owners who use it will be legally treated as colluding with one another.

Under the statute, when two or more landlords set prices through the same algorithm, they are legally considered to have chosen not to compete. That holds true whether they acted knowingly or with reckless disregard, making algorithmic collusion a distinct legal violation on its own.

The $3.8 billion rental squeeze

The financial toll of these tools has been massive. According to Hochul's office, algorithmic pricing software cost American renters roughly $3.8 billion in 2024 alone.

The crackdown traces back to a landmark 2022 investigation by ProPublica, which connected RealPage's software to soaring rents across the country. Two years later, the federal government slapped RealPage with an antitrust lawsuit.

State Senator Brad Hoylman-Sigal, one of the bill's sponsors, emphasized that the legislation modernizes antitrust enforcement to make clear that AI-driven rent price-fixing is outright illegal. Pat Garofalo, state and local policy director at the American Economic Liberties Project, praised the measure for shielding tenants from algorithmic price collusion.

Why it matters

For renters across New York, this is a tangible win. For years, tenants faced rigid pricing and artificial vacancy strategies engineered by software that individual property managers could hide behind. Once the ban takes effect, landlords will have to set prices on their own, which should bring some competitive bargaining power back to tenants.

For the tech and real estate sectors, New York is setting a major legal precedent. Traditional antitrust enforcement struggled for years with the algorithmic defense, where companies claimed they never spoke to competitors and simply bought third-party software. New York cut straight through that argument by declaring that sharing private data into a common pricing engine is collusion by definition.

We think this approach is sharp because it bypasses technical debates about code transparency and targets the underlying anti-competitive behavior. Other states are likely to copy this playbook quickly. However, ending algorithmic collusion does not magically fix New York's underlying housing supply shortage, and landlords will almost certainly test the boundaries with more indirect data tools in the coming months.