Public Accountability Report Public Accountability Report

2025 Administer State and Local Tax Laws
Mission Statement To serve Illinois’ taxpayers by administering Illinois tax laws and collecting tax revenues in a fair, consistent, and efficient manner and by providing accurate and reliable funding and information in a timely manner.
Program Goals and Objectives
  1. Increase the agency’s efficiencies, agility, effectiveness, and security.
    1. Educate and empower taxpayers.
      1. Cultivate a well-equipped, diverse, flexible, and engaged workforce.
        Source of Funds General Revenue Fund, Motor Fuel Tax Fund, Underground Storage Tank Fund, Illinois Gaming Law Enforcement Fund, State and Local Sales Tax Reform Fund, Regional Transportation Authority Occupation and Use Tax Replacement Fund, Income Tax Refund Fund, Tax Compliance and Administration Fund, Local Government Distributive Fund, Personal Property Tax Replacement Fund, Local Government Video Gaming Distributive Fund, Tennessee Valley Authority Local Trust Fund, Cannabis Regulation Fund Statutory Authority 35 ILCS
        Fiscal Year 2026 Target/Projected Fiscal Year 2025 Actual Fiscal Year 2025 Target/Projected Fiscal Year 2024 Actual Fiscal Year 2023 Actual
        Input Indicators
        Total expenditures - all sources (in thousands) $ 25,764,668.4 $ 8,586,805.4 $ 22,004,812.4 $ 10,085,427.5 $ 12,645,766.7
        Total expenditures - state appropriated funds (in thousands) $ 1,445,668.4 $ 817,498.6 $ 1,433,812.4 $ 973,432.1 $ 1,343,394.9
        Average monthly full-time equivalents 1,439.0 1,310.0 1,439.0 1,276.0 1,248.0
        Total expenditures - operations (state appropriated funds) (in thousands) $ 276,624.9 $ 254,067.3 $ 267,991.5 $ 245,856.6 $ 210,339.0
        Total expenditures - grants and refunds (state appropriated funds) (in thousands) $ 1,169,043.5 $ 563,431.2 $ 1,165,820.9 $ 727,575.5 $ 1,133,056.0
        Output Indicators
        Number of state and local taxes administered 82.0 82.0 82.0 82.0 82.0
        State and local tax and fee collections (in millions) $ 70,500.0 $ 70,135.0 $ 68,000.0 $ 67,624.0 $ 67,539.0
        Number of tax returns filed 13,600,000 13,575,115 13,500,000 13,287,804 13,414,345
        Number of individual income tax (IIT) returns processed 6,400,000 6,369,590 6,325,000 6,317,352 6,480,003
        Number of IIT refunds issued 4,100,000 4,094,024 4,100,000 4,040,398 4,153,944
        Number of IIT refunds issued via direct deposit 3,400,000 3,367,224 3,350,000 3,309,153 3,377,479
        Number of new registration applications processed 155,000 154,707 145,000 145,121 162,137
        Number of active registration accounts 2,250,000 2,234,422 2,175,000 2,158,717 2,068,535
        Delinquent tax debt cases closed 471,291 457,564 453,019 439,824 457,213
        Delinquent tax debt collections (in thousands) $ 650,000.0 $ 648,464.0 $ 625,000.0 $ 601,453.0 $ 569,308.0
        Number of phone calls answered on toll-free taxpayer assistance lines 820,000 819,325 800,000 796,871 891,421
        Outcome Indicators
        Percentage of tax returns filed electronically 91.50% 90.60% 89.00% 89.90% 87.60%
        Number of IIT returns filed electronically 5,900,000 5,910,470 5,800,000 5,790,700 5,778,690
        Percentage of IIT returns filed electronically 93.00% 92.80% 92.50% 91.70% 89.20%
        Percentage of tax and fee collections received via Electronic Funds Transfer (EFT) 95.70% 94.80% 94.10% 94.30% 92.80%
        Total tax and fee collections received via EFT (in millions) $ 67,500.0 $ 66,454.3 $ 64,000.0 $ 63,781.4 $ 62,681.8
        Tax collections received voluntarily as a percentage of total tax collections 98.00% 97.81% 98.15% 97.88% 98.05%
        Average number of days from receipt of registration application to mailing of certificate 1.2 1.0 1.2 1.2 1.7
        Average number of days from receipt of payment until deposit 1.0 1.1 1.0 1.0 1.0
        Percentage of dollars deposited on same day as receipt 98.60% 98.59% 98.60% 98.20% 98.40%
        Percentage of accurately and timely filed IIT returns 83.50% 82.60% 83.50% 82.90% 83.10%
        Average number of days to issue an IIT refund 30.5 31.0 33.0 31.4 33.2
        Revenue generated and credits and refund liabilities reduced through compliance activities (i.e., enforced return review and billing, audit, delinquent collections, and criminal fraud investigations) (in millions) $ 1,550.0 $ 1,537.6 $ 1,375.0 $ 1,434.3 $ 1,319.8
        Percentage of taxpayer assistance calls answered 92.00% 90.70% 86.00% 90.60% 85.40%
        Efficiency/Cost-Effectiveness Indicators
        Cost to collect $1,000 of taxes and fees (in dollars) $ 3.92 $ 3.62 $ 3.94 $ 3.64 $ 3.11
        Tax and fee collections per staff (in millions) $ 49.0 $ 53.5 $ 47.3 $ 51.5 $ 52.6
        Delinquent tax debt collections per dollar spent on delinquent debt collection process (in dollars) $ 24.99 $ 24.93 $ 26.29 $ 25.30 $ 26.77

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