All Employees: Professional and Business Services: Accounting, Tax Preparation, Bookkeeping, and Payroll Services in Illinois was 53.56040 Thous. of Persons in January of 2024, according to the United States Federal Reserve. Historically, All Employees: Professional and Business Services: Accounting, Tax Preparation, Bookkeeping, and Payroll Services in Illinois reached a record high of 59.81812 in September of 2023 and a record low of 34.30339 in August of 1992. Trading Economics provides the current actual value, an historical data chart and related indicators for All Employees: Professional and Business Services: Accounting, Tax Preparation, Bookkeeping, and Payroll Services in Illinois - last updated from the United States Federal Reserve on March of 2024.