The Illinois Department of Revenue (IDOR) is the code department[1][2] of the Illinois state government that collects state taxes, operates the state lottery, oversees the state's casino industry, oversees the state's thoroughbred and harness horse racing industries, and regulates the distribution of alcoholic beverages throughout Illinois, including beer, wine, and liquor.
[3] It is headquartered at the Willard Ice Building, 101 West Jefferson in Springfield, Illinois.
The Illinois Department of Revenue has increased in size in line with the creation of new taxes within the state and the expansion of existing taxes.
IDOR expected to keep $1.0 billion of this sum (4.0%) to cover the costs of its own operations, and expected to transfer the rest to the office of the Illinois State Treasurer to pay for the ongoing operations of the state.
The Illinois Department of Revenue collects taxes on its own behalf and oversees the operations of three quasi-independent state boards and commissions, as follows: In 2018, IDOR Launched a Statewide Electronic Lien Registry in order to provide a single-source to locate all active liens and releases filed by the department.