Illinois Property Tax Appeal Board

The Illinois Property Tax Appeal Board (PTAB) is a quasi-judicial body that serves as the final administrative avenue for taxpayers to contest property tax assessments in the state of Illinois. Established to ensure fair and equitable property taxation, the PTAB provides an impartial forum for resolving assessment disputes between property owners and local assessing authorities. Taxpayers can appeal their assessments to the PTAB after first appealing at the county level, typically before the local Board of Review. The board reviews evidence such as property appraisals, comparable sales data, and other relevant documentation to determine whether an assessment should be reduced, increased, or upheld.