California · in Force

California AB 325: Common Pricing Algorithms Law

Since January 1, 2026, California law makes it unlawful to use or distribute a common pricing algorithm that uses competitor data to recommend, align, stabilize or set prices. It is an antitrust rule rather than a personalized pricing rule, but it governs shared pricing software.

AB 325 (Cartwright Act amendments)

Last verified Oct 6, 2026 · In force Jan 1, 2026 · Not legal advice

What Does California AB 325 Require?

StatusIn force since January 1, 2026 (signed October 6, 2025)
What it prohibitsUsing or distributing a common pricing algorithm that uses competitor data to recommend, align, stabilize, set or otherwise influence a price or commercial term
EnforcementCartwright Act, with modified pleading standards for conspiracy claims

What Does AB 325 Mean for Pricing Software Vendors?

Shared pricing software has been challenged as a hub for coordination. See Do Shared Pricing Vendors Create Antitrust Risk?

How Can a Business Comply with California AB 325?

  • 1. Classify: Map every input behind a price by source and sensitivity.

Primary Sources

  1. Greenberg Traurig, Sep 2026