Assessors’ offices will not accept appeals on another county’s form. Boone County: Property tax assessments have not yet been mailed, so the deadline for filing an appeal hasn’t been set.

Appeal form must be filed (not just postmarked) with county Board of Taxation by 4:30 p.m. April 1, and must include filing fee of $5 if assessed value is less than $150,000; $25 if $150,000 and ...