You must file with the county or city where your home is located. Each county has different applications and required documents.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. The deadline for filing an application for a homestead exemption in Montgomery County is April 1. To receive the benefit of the homestead exemption, the taxpayer must file an initial application. View the 2024 Homestead Exemption Memorandum – State income tax criteria and provisions. Visit your local county office to apply for a homestead exemption. Learn everything you need to know about filing for homestead exemption in the State of Georgia, from deadlines to requirements. Montgomery County does not offer any Local Homestead Exemptions.