The Property Appraiser mails Homestead Exemption application forms and qualification guidelines to persons who bought homes during the current year. Here's the deal: you can apply for Homestead Exemption between January 1st and March 1st.The deadline for filing for exemptions is March 1st. Exemption forms are available from the Miami-Dade County Property Appraiser's Office. 9. The Homestead Exemption in MiamiDade County is pretty straightforward. Homestead exemption.jpg. The homestead exemption will automatically renew each January and the automatic exemption renewal notice will be mailed annually on or before February 1. NEW Informational Videos! Welcome to the Tax Collector's Office serving the citizens of Monroe County. We offer a variety of convenient online services and valuable information.