IRS Service Capacity Changes Hit California
When IRS service capacity changes, high-volume states often feel the effects first. California, home to one of the nation’s largest taxpayer populations, provides a clear example of how staffing shifts can influence phone access, in-person appointments, and paper return processing during and after filing season.
Treasury officials reported that during Filing Season 2024, the IRS achieved an 88 percent level of service on its main taxpayer helpline and reduced average wait times to about three minutes. The agency also answered more than 1 million additional calls compared with the same point in Filing Season 2023, crediting Inflation Reduction Act funding for expanded staffing and improved routing.
However, oversight findings show that the headline numbers do not reflect every caller’s experience.
The Treasury Inspector General for Tax Administration reported that the widely cited level of service figure applies to accounts management lines. In contrast, other IRS phone lines averaged significantly longer waits — between 17 and 19 minutes during the same filing season. TIGTA also noted that enterprise-wide service levels can appear lower than the Accounts Management-only metric.
In a state like California, where millions of taxpayers rely on IRS phone service for identity verification, compliance questions, and amended returns, small changes in staffing levels can affect a large number of callers in absolute terms.
IRS service capacity changes have also affected in-person help at Taxpayer Assistance Centers. The Treasury reported that during Filing Season 2024, the IRS served more than 170,000 additional taxpayers in person compared with the prior filing season and reopened or opened 54 centers using Inflation Reduction Act funding.
The Government Accountability Office found that in-person service increased during the 2024 filing season and cited IRS officials who said additional staffing supported those gains.
Larger metro areas, including several in California, tend to generate strong demand for appointments. When staffing expands, appointment availability typically improves. If resources tighten, appointment slots can fill quickly, which may increase pressure on IRS phone service and correspondence channels.
Electronic filing continues to dominate, but paper returns still represent a substantial workload. GAO reported that the IRS processed 98 percent of nearly 174 million returns by April 19, 2024.
While overall processing improved, paper Form 1040 returns averaged about 20 days, exceeding the agency’s 13-day processing goal. In high-population states such as California, higher absolute numbers of paper filers can translate into more constituents waiting for processing and potentially contacting the IRS for updates.
The National Taxpayer Advocate reported that the IRS entered 2026 with a workforce reduction of approximately 27 percent compared with prior staffing levels. The report indicated that customer service representatives declined by roughly 22 percent in 2025.
The Advocate stated that most taxpayers who e-file without issues may continue to experience routine processing. However, the report warned that the filing season is often defined by how effectively the IRS assists taxpayers who encounter problems, including identity verification holds, amended returns, and complex account questions.
In large states, higher filing volumes naturally lead to more of these cases. That dynamic means workforce reductions could be more visible in states like California, where service demand is consistently high.
For many electronic filers with straightforward returns, changes in IRS service capacity may go unnoticed. Returns filed electronically without errors are generally processed efficiently, according to oversight reviews.
Taxpayers who require live assistance, in-person appointments, or manual review may experience longer resolution times if staffing levels decline. Oversight reports emphasize that enterprise-wide performance metrics provide a broader picture than headline phone service numbers alone.
By William Mc Lee, Editor-in-Chief & Tax Expert—Get Tax Relief Now
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