The Illinois Department of Revenue announced a tentative 2025 Cook County Equalization Factor of 2.8683 on Tuesday, April 28, 2026. This tentative 2025 Cook County Equalization Factor is 5.51% lower than the final 2024 Cook County Equalization Factor of 3.0355. Every year, the Illinois Department of Revenue is legally required to calculate the equalization factor […]
Continue Reading 2025 Cook County Tentative Multiplier or Equalization Factor Set