California Pay Equity Expert Witness

CALIFORNIA PAY EQUITY LITIGATION & COMPLIANCE

The strictest pay equity regime in the country — and the most litigated.

California employers operate under the most demanding pay equity framework in the United States: an Equal Pay Act with a broader comparator standard than federal law, mandatory pay scales in job postings, annual pay data reports filed with a state civil rights agency, and an active plaintiffs’ bar equipped with class actions and representative claims. Grahall provides the statistical analysis, privileged audits, and expert testimony that California matters demand — for employers, and for plaintiff or defense counsel.

The California Equal Pay Act, in Practice

Labor Code section 1197.5 requires equal pay for “substantially similar work,” viewed as a composite of skill, effort, and responsibility performed under similar working conditions — a materially broader test than the federal “equal work” standard, and one that reaches across different job titles and different worksites. The protection extends beyond sex to race and ethnicity. Once a disparity is shown, the burden shifts to the employer to prove the entire gap is explained by seniority, merit, production, or a bona fide factor other than sex that is job-related and consistent with business necessity. Two things California takes off the table: prior salary can never justify a disparity (a rule the Ninth Circuit reinforced in Rizo v. Yovino), and asking candidates about salary history has been unlawful since 2018. Remedies include back wages, an equal amount in liquidated damages, and interest, with a two-year limitations period — three for willful violations.

SB 1162: Transparency With Teeth

Since 2023, employers with 15 or more employees must include the pay scale in every job posting — and as of January 2026, that scale must be a good-faith estimate of what the employer actually expects to pay at hire, not a placeholder range. Any employee may request the pay scale for their own position. Posting violations carry civil penalties of $100 to $10,000 per violation through the Labor Commissioner.

Separately, employers with 100 or more employees (including workers supplied by labor contractors) must file annual pay data reports with the California Civil Rights Department each May, breaking down pay by job category, sex, race, and ethnicity. Failures invite civil penalties of up to $100 per employee, rising to $200 for repeat violations — and, more importantly, the filings hand a regulator a statistical map of your pay structure. Every report is a potential exhibit.

Where California Disputes Are Fought

• Class and representative actions — the substantially-similar standard invites broad comparator groups, and California’s procedural tools give plaintiffs leverage federal claims lack.
• Individual Equal Pay Act and FEHA claims — often paired, with the burden-shifting framework putting the employer’s statistical explanation on trial.
• Agency matters — Civil Rights Department inquiries and Labor Commissioner citations arising from pay data reports and posting complaints.

How Grahall Helps in California

• Privileged pay equity audits at the direction of counsel — testing pay against the substantially-similar standard before a posting, filing, or complaint exposes it, with remediation modeled on your timeline.
• CRD pay data report analytics — the statistical work behind the May filing, including a pre-submission read of what the numbers will signal to the regulator.
• Posting-range architecture — building good-faith pay scales that satisfy the 2026 definition and survive the incumbents who will read them.
• Litigation support and expert testimony — comparator construction under the California standard, regression analysis controlling for lawful factors, class certification statistics, damages quantification, and rebuttal of opposing experts, for either side.

California Questions We Hear Most

What counts as “substantially similar work”?

It is a composite judgment about skill, effort, responsibility, and working conditions — not job titles. Employees with different titles, in different departments or locations, can be comparators. That is precisely why the question is ultimately statistical: who belongs in the comparison group, and what legitimately explains the differences within it.

Can we rely on what an employee earned at their last job?

No. California bars salary-history inquiries and prohibits using prior pay to justify a current disparity, alone or in combination with other factors. Pay structures built on negotiated history tend to encode exactly the gaps the statute targets.

Does a proactive audit help in California?

California has no statutory safe harbor like Massachusetts or Oregon, but a privileged audit still does the two things that matter: it lets counsel control the analysis, and it gives the organization the chance to fix disparities before the CRD report, the posted range, or a complaint makes them public.

See also: our national pay equity guide with all state laws, including the downloadable 2026 state chart.

This page summarizes California law as of July 2026 and is general information, not legal advice. Confirm current requirements with California employment counsel.