Here are links to online Decatur's property tax exemption forms. Please see farther below for details on procedures and eligibility.Homestead Exemption is one way to reduce the amount of property tax you pay on your residential property. You must file your homestead exemption application with your county tax officials. The filing deadline for Homestead Exemptions is April 1. Homestead exemptions provide a significant reduction in annual property taxes and are available to individuals who own and reside in a home in DeKalb County. The exemption is not entered anywhere on your federal income tax return. If you own and live in a house in Fulton County, you may qualify for homestead exemption. The purpose of this guide is to help Fulton County residents learn. You must complete a Wisconsin Homestead Credit Claim, Schedule H or Schedule H-EZ, to determine the amount of any benefit available.