Homestead Exemption. The deadline to submit a homestead and all exemption applications is March 1 following the year of your home purchase.Contact your local property appraiser if you have questions about your exemption. File the signed application for exemption with the county property appraiser. To claim the exemption, the homeowner must make a one-time filing with the county assessor where the property is located. Homestead exemption applications may now be filed online! Complete the form online and select the state's e-file option. You should complete all required forms and applica ons for the exemp on and file them with your county property appraiser. Assessed value takes into account any exemptions you may have on your property. Property Tax Rates Across Pinellas County, Florida.