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Chicago continues to pay overtime it likely should not, despite more than a decade of warnings, internal acknowledgments, and prior Inspector General advisories.
This is not an isolated payroll error. It is a structural failure spanning public safety agencies, infrastructure departments, and City Hall itself.
On January 21, 2026, the City of Chicago Office of Inspector General (OIG) released an advisory confirming that from 2020 through 2024, the City paid $26.5 million in overtime to employees who were potentially ineligible under federal labor law and applicable union contracts.
Crucially, the Brandon Johnson administration was notified in advance.
The OIG formally advised the Department of Human Resources (DHR) and the Department of Finance (DOF) of its findings in November 2025, specifically so City leadership could address the issue during the 2026 budget process. Both departments acknowledged the problem, requested extensions, and submitted written responses in January 2026, confirming they were aware of the findings and the scale of the issue.
Brandon Johnson has been Mayor since May 2023, meaning the problem was identified, briefed, and documented entirely during his administration.
What the OIG Found
The Inspector General’s review determined that:
1,072 individual employees received overtime pay they may not have been entitled to.
Payments occurred across 24 City departments, plus City Council, the Office of the City Clerk, and the Board of Elections.
Five departments accounted for nearly 80% of the questionable overtime:
Chicago Fire Department — approximately $6.9 million
Office of Emergency Management and Communications — approximately $4.8 million
Department of Water Management — approximately $4.4 million
Chicago Police Department — approximately $2.7 million
Chicago Public Library — approximately $2.0 million
The OIG also identified 18 individual employees who each received between $250,000 and $700,000 in overtime during the five-year review period. Those 18 employees alone accounted for nearly 25% of all overtime paid to potentially ineligible workers.
Why the Payments Were Potentially Improper
Under the Fair Labor Standards Act (FLSA), certain employees—typically executive, administrative, or professional staff—are exempt from overtime unless a collective bargaining agreement explicitly allows it.
The OIG identified systemic breakdowns, including:
Inconsistent or outdated FLSA classifications
Departments overriding or failing to update exemption status
Payroll systems unable to reliably distinguish weekday versus weekend overtime
Ambiguous overtime pay codes
Conflicting guidance issued by the Department of Human Resources itself
The report notes that these failures were first flagged in 2010, formally warned about again in 2013, and still unresolved more than a decade later.
City Response
Both DHR and DOF acknowledged the findings and agreed that corrective steps are necessary. Their responses commit to:
Improving FLSA classification controls
Updating payroll systems
Issuing new guidance to departments
Coordinating oversight between Human Resources, Finance, and operating departments
The advisory does not allege criminal conduct. It does, however, warn that the continued failure to control overtime eligibility exposes the City to serious legal, financial, and compliance risks—at a time when Chicago’s finances are already under severe strain.
As Inspector General Deborah Witzburg stated:
“OIG’s analysis revealed tens of millions of misspent dollars. We advised DHR and DOF of our findings in November 2025, in the hopes that they might inform the City’s 2026 budget process… The City’s finances are, needless to say, in an extremely precarious place, and we can ill-afford mistakes which run well into the eight figures.”
Bottom Line
Chicago knew.
City leadership was warned.
The payments continued anyway.
And the same structural failures identified more than a decade ago remain embedded in City operations today.
Read the full OIG advisory (January 21, 2026):
https://igchicago.org/wp-content/uploads/2026/01/Advisory-Concerning-Overtime-Payments-to-Ineligible-Employees.pdf