IRS Overtime Costs Surge Amid Workforce Exodus and Operational Crisis: A TIGTA Investigation
The Internal Revenue Service (IRS) is currently navigating one of the most turbulent periods in its history. A recently released report from the Treasury Inspector General for Tax Administration (TIGTA), dated May 15, 2026, has unveiled a stark reality: the agency is increasingly reliant on expensive overtime to keep basic operations afloat, even as its total headcount plummets.
According to the TIGTA findings, IRS overtime costs surged by 12% during the first nine months of 2025 compared to the same period in 2024. This financial spike—totaling approximately $27 million in additional spending—comes against a backdrop of a 25% reduction in the agency’s total workforce. As the IRS faces ballooning backlogs and the lingering effects of a 43-day government shutdown, the reliance on overtime has become a contentious and essential pillar of its daily survival.
The Perfect Storm: A Chronology of Decline
The 2025 fiscal year proved to be a watershed moment for the IRS. The agency, already strained by legacy IT systems and complex tax codes, faced a massive reduction in personnel driven by a series of aggressive resignation and retirement programs.
Early 2025: The Workforce Exodus
In the early months of 2025, the IRS implemented several voluntary separation incentive programs. While these programs were intended to streamline agency operations, they resulted in a 25% decrease in the overall workforce. A critical component of this transition was the extensive use of administrative leave for departing employees. TIGTA reported that administrative leave hours exploded from a baseline of 569 hours to more than 1.9 million hours, as thousands of employees transitioned out of the agency.
Mid-2025: The Shutdown and Accumulating Backlogs
Compounding the loss of human capital was a 43-day government shutdown that concluded in November 2025. This cessation of normal operations acted as a force multiplier for existing inefficiencies. By the time the agency returned to full capacity, the inventory of key tax processing cases had jumped by 33%, rising from 1.5 million cases in December 2024 to 2 million cases by December 2025.
Late 2025: The Overtime Pivot
To mitigate the impact of these mounting backlogs, the IRS turned to its remaining staff. While regular work hours dropped by 14% due to the departures, overtime hours became the primary mechanism for maintaining taxpayer services. The agency spent $225 million on overtime between January and September 2025, a significant climb from the $198 million spent in the same timeframe the previous year.
Supporting Data: The Burden on Taxpayer Services
The TIGTA report identifies a clear epicenter for this overtime expenditure: the Taxpayer Services division. This division was responsible for 87% of all overtime hours logged across the agency in 2025.
Who is Doing the Work?
The primary burden fell upon contact representatives and tax examiners. These two groups alone reported 4.3 million overtime hours, accounting for 82% of the agency’s total overtime. This reality is particularly striking when compared to the workforce reduction in those specific roles:
- Contact Representatives: Saw a reduction of nearly 6,000 employees (a 23% decline).
- Tax Examiners: Saw a reduction of approximately 4,000 employees (a 27% decline).
These employees represent the front line of the IRS. Their daily tasks include answering taxpayer phone calls, processing correspondence, resolving complex tax-related disputes, and calculating penalties and interest. As their ranks were decimated by attrition, those remaining were forced to absorb the workload of their former colleagues, leading to the dramatic spike in overtime.
Questionable Claims and Oversight Gaps
While the TIGTA report acknowledges that overtime was "needed" to balance workforce demands, it also sounds a significant alarm regarding internal controls and oversight.
Flags for Non-Compliance
TIGTA identified 476 instances of "questionable overtime claims" submitted by approximately 300 employees. These claims were flagged based on specific criteria: employees reporting more than six hours of overtime or exceeding 12 workable hours in a single day.
The threshold of 12 hours is not arbitrary; it is a hard limit established by the national agreement between the IRS and the National Treasury Employees Union (NTEU) to prevent burnout and ensure worker safety. Despite this, investigators found 14 instances where employees reported working 20 or more hours in a single day. Disturbingly, 71% of these extreme cases were traced back to the Taxpayer Services division, suggesting that the pressure to clear backlogs may be pushing employees—and supervisors—to ignore established labor regulations.
The Oversight Deficit
Perhaps the most concerning revelation in the TIGTA report is the lack of a centralized mechanism to monitor overtime. Currently, each IRS business unit is responsible for its own documentation and approval processes. While the agency has a mandate that overtime must be ordered or approved in writing, there is no centralized, automated limit on the number of hours an employee can work. This decentralized approach creates a "wild west" environment where documentation standards vary wildly from one department to the next, making the agency vulnerable to both error and potential abuse.
Implications for the Future
The TIGTA report does not include specific recommendations, stating it was prepared for "informational purposes." However, the implications of these findings are profound.
The Efficiency Trap
The IRS is caught in a cycle of diminishing returns. By allowing a quarter of its workforce to leave without a commensurate increase in automation or efficiency, the agency has become structurally dependent on overtime. However, relying on overtime is not a sustainable long-term strategy. Overworked employees are prone to higher error rates, which can lead to further backlogs as those mistakes require subsequent correction.
The 2026 Outlook
TIGTA has signaled that the current report is merely the beginning of their investigation. For the 2026 filing season, the Inspector General plans a more robust assessment of the agency’s controls over premium pay and mandatory overtime. Furthermore, the names of employees associated with the questionable overtime claims are being referred back to the IRS for internal review and potential disciplinary action.
The Human Toll
Beyond the fiscal impact, there is the human cost of these operations. A government agency that requires its employees to work 20-hour days to manage processing backlogs is an agency that is likely approaching a breaking point. The reliance on overtime is a "band-aid" solution that masks the deeper, systemic issues of workforce planning and resource allocation.
As the IRS prepares for the upcoming filing season, the pressure to maintain service levels while managing a reduced, overworked, and highly taxed workforce will be immense. The question remains whether the agency can stabilize its operations through improved oversight or if the current reliance on overtime will continue to erode the agency’s ability to serve the public effectively.
For more information on the TIGTA report or to review the full documentation, visit the official TIGTA website. To comment on this article or to suggest an idea for future coverage, contact Martha Waggoner at [email protected].
