HOMESTEAD EXEMPTION FILING DATES ARE JANUARY 1st THROUGH April 1st. Effective June 1, 2005 homestead exemptions may be filed for any time during the year.You must file with the county or city where your home is located. Each county has different applications and required documents. Homestead Applications are Filed with Your County Tax Officials - Application for homestead exemption must be filed with the. L3 – Local Standard Elderly Homestead Exemption. You must provide your 2022 Georgia and Federal Tax. Returns. Application for Preferential Agricultural Assessment, 835, 165 KB, Details icon. Columbia County Tax Commissioner's Office ○ 630 Ronald Reagan Dr. Bldg. C Evans, Ga 30809 ○ 706-261-8299.