Kaiser Must Pay Back Wages to 1,100+ Nurses After Years-Long Payroll Error

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More than 1,000 Kaiser Permanente nurses in California are finally getting paid what they were owed, after an arbitrator ordered the health system to cover back wages lost to a payroll error that dates back to 2021, the San Francisco Chronicle reports. The California Nurses Association (CNA) says the total could reach tens of millions of dollars.

The problem traces back to a 2021 change in Kaiser’s HR and payroll software (HRConnect) that left nurses stuck on lower pay steps than their contract called for. According to KQED, a December 2024 Kaiser payroll audit identified 1,142 underpaid nurses.

The union is calling this a historic win. Kaiser says it is committed to paying every nurse accurately and in full. 

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In early 2021, Kaiser changed its payroll system. After that, the company failed to move staff nurses up to the higher pay rates they had earned through experience and other contract terms, KQED reports. Union representatives first flagged the problem to Kaiser in June 2022. Because CNA did not have direct access to the payroll system, it took years to piece together the scope, with roughly 600 nurses eventually reporting paycheck errors before Kaiser’s internal audit confirmed the scale. 

When Kaiser audited its payroll in December 2024, it found 1,142 nurses who had been underpaid and 1,813 who had been overpaid. KQED reports that Kaiser did not try to take money back from the overpaid workers.

“The issue really is that we gave Kaiser all of the information that we gathered that was accurate and even then Kaiser refused to correct it,”  said Gutierrez Vo, a registered nurse for more than 25 years. “It’s taking an arbitrator to really force Kaiser to do right by our nurses.” 

Even small differences between pay steps add up. Staff Nurses II in Northern California often earn more than $100 an hour before overtime and premium pay, so being stuck one step too low for several years can cost a nurse thousands of dollars.

CNA says it spent years working with nurses to figure out how big the problem was, and that Kaiser “repeatedly tried to minimize and obscure” it. Kaiser has not publicly responded to that claim.

“They changed their payroll system, messed it up, and let the mistake steal millions of dollars from nurses,” said CNA President Michelle Gutierrez Vo, a registered nurse at Kaiser Fremont Medical Center.

The grievance went to arbitrator David A. Weinberg, who ruled that Kaiser must make nurses “whole for any loss in wages and benefits going back to the date of their incorrect placement on the wage step.” That means nurses can get back pay for the full period they were underpaid, not just part of it.

According to KQED, Weinberg turned down Kaiser’s offer to pay only one year of retroactive wages. He also turned down the union’s request for an extra 10% in damages. Kaiser has not said how much it expects to pay in total, according to Medical Daily.

CNA, which represents more than 25,000 RNs at 22 Kaiser facilities in California, did not hold back. Gutierrez Vo told KQED that “all of these years, they’d rather pay expensive lawyers to not pay the nurses that work super hard. That’s just unethical and immoral and it’s very disappointing.” 

Kaiser struck a different tone. “Our nurses are among the most skilled and dedicated in the country, and we are committed to ensuring every one of them is paid accurately and in full accordance with their contract,” a Kaiser spokesperson told KQED. The company also said, “We will reach out directly to every affected nurse promptly.”

The ruling comes while CNA is in contract talks with Kaiser. The union held an informational picket outside Kaiser’s Oakland Medical Center on September 1 to demand better staffing levels and limits on AI in patient care. It also follows a tense year across the system, including the October 2023 strike by 75,000 Kaiser workers that ended with a 21% raise over four years. Of note, Kaiser reported $127.7 billion in revenue and a $1.4 billion net profit last year.

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Payroll mistakes like this can go unnoticed for years, especially when they come from a software change instead of an obvious pay cut. Here’s what you should look out for:

• Check your pay step. Most union contracts and many hospital pay scales tie raises to years of experience. Compare your current step with your hire date and contract every year, and especially after any payroll or HR system change.
• Keep your own records. Save pay stubs, offer letters, and anything showing your experience level. This case started with nurses and union reps documenting the problem over several years.
• Report problems in writing. If something looks off, tell payroll and your union rep or HR in writing so there’s a clear date on file. Here, the arbitrator tied back pay to when nurses were first placed on the wrong step.
• If you’re an affected Kaiser nurse, watch for Kaiser’s outreach and check any back pay calculation against your own records. Your CNA representative can help.

Even nurses without a union can learn from this. Pay errors tied to experience steps aren’t rare, and checking your own numbers is often the only way to catch them.

🤔 Have you ever found a payroll error on your paycheck, and how long did it take your employer to fix it? Share your story in the comments below.