California · Rent-setting software

Can landlords use software to set my rent in California?

Not as part of price-fixing between landlords.

Why, and the exact law

Using a shared pricing tool to collude, or pushing others to use its prices, is illegal.

From the California Legislature, read Oct 1, 2026.
Show the law

“It shall be unlawful for a person to use or distribute a common pricing algorithm as part of a contract, combination in the form of a trust, or conspiracy to restrain trade or commerce in violation of this chapter …”

Cal. Bus. & Prof. Code § 16729 · leginfo.legislature.ca.gov · found word for word in the source

Who can help

  1. Get free legal helpIf your landlord won't fix it.LawHelpCA
  2. Find a lawyerReferral service of the State Bar.State Bar of California
Every rule here, word for word (1)

This page covers state law only. Cities with their own rules have their own pages.

California lawIn force

AB 325 / SB 763 – Common pricing algorithm prohibition (Cartwright Act)

Can landlords use software to set my rent?

Not as part of price-fixing between landlords.

Using a shared pricing tool to collude, or pushing others to use its prices, is illegal.

Who it covers

  • Covers: Any person using or distributing a common pricing algorithm; not limited to housing; excludes end consumers.
In force since
Jan 1, 2026
Enacted
Oct 6, 2025
The law, word for word

“It shall be unlawful for a person to use or distribute a common pricing algorithm as part of a contract, combination in the form of a trust, or conspiracy to restrain trade or commerce in violation of this chapter …”

Cal. Bus. & Prof. Code § 16729 · leginfo.legislature.ca.gov · Retrieved Oct 1, 2026

Quote checked word for word

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Information about the law, not legal advice.