The Illinois Department of Revenue announced on April 14 that Macoupin County has been assigned a final property assessment equalization factor, or “multiplier,” of 1.0000 for the year 2025, according to David Harris, director of the department.
The equalization factor is used to ensure uniform property assessments across counties in Illinois. This process is important because many local taxing districts overlap multiple counties, and without such equalization, taxpayers with similar properties could face unequal tax burdens.
Harris said the multiplier was determined after a public hearing on the tentative factor issued earlier in January. The new multiplier applies to taxes payable in 2026 and matches last year’s figure for Macoupin County. Property assessments in the county are currently at about one-third of market value based on recent sales data from 2022 through 2024.
The Illinois Department of Revenue operates within state taxation and revenue management, as detailed on its official website. The agency focuses on fairly administering state tax laws and efficiently collecting revenues while providing accurate and timely information, according to its official website. The department also works to foster an inclusive environment that values diversity and equity for employees and customers, as stated on its official site.
Under state law enacted in 1975, most properties should be assessed at one-third their market value; farmland is assessed differently based on agricultural economic value rather than market price. Changes in the equalization factor do not directly increase or decrease total property tax bills; instead, local taxing bodies determine those amounts when requesting funds each year.
The Illinois Department of Revenue serves as a state agency dedicated to promoting diversity and equity in its operations, according to its official site. It is also known for overseeing the collection of state taxes and delivering reliable financial information, according to its official website.
