
Residents of McHenry County can breathe a sigh of relief—at least when it comes to property tax assessments. The Illinois Department of Revenue has set the county's property assessment equalization factor, commonly known as the "multiplier," at a steady 1.0000. According to state officials, this figure is designed to ensure fairness across the board, maintaining uniform property assessments as mandated by law.
David Harris, the director of the Illinois Department of Revenue, announced the final multiplier, which is intended to achieve equity among the various properties and those who hold their titles. The perennial conundrum of property assessment is no small matter, as it influences not just individuals, but spans across 6,600 local taxing districts that dip their toes into multiple counties. Without such equalization, the disparity would run rampant, placing unequal burdens on homeowners with similar properties.
Rooted in legislation that spans back to 1975, the IDOR holds that properties should be tagged at one-third of their market value—a benchmark McHenry County assessments are meeting, based on property sales data collected from 2020 to 2022. The valuation process, however, leaves out farmland, which is assessed based on its agricultural economic value rather than market value, and thus isn't swayed by the state equalization factor.
This year's affirmation of the 1.0000 multiplier echoes last year's figure and comes post-public hearing which deliberated a tentative factor also sitting at 1.0000. The purpose of the hearing was to allow citizens to weigh in before the official number was cemented. The Department of Revenue calculates the multiplier annually by lining up the sale price of individual properties against the assessed value decided by the county's assessment office. Should the three-year average show that assessments match one-third of the market value, the county gets a clean 1 as its multiplier.
However, locals should note that this doesn't directly dictate their tax bills. Those are the product of local taxing bodies, which tally up their financial needs annually to determine how deeply to dip into taxpayer pockets. Essentially, if these districts don't ask for more money than they did last year, total property taxes won't see an upswing—even if assessment values climb. The multiplier itself only shapes the slice of the tax responsibility pie that each property owner is expected to contribute.









