No information is available for this page. Exemption applications must be filed with your local assessor's office.See our Municipal Profiles for your local assessor's mailing address. To qualify for Homestead Exemption (F. It is a local option to establish two separate property tax rates: a lower tax rate for residential property owners. For all of the abovelisted exemptions, you can fill out and submit a Nassau County exemption form today! File a Tax Grievance. Gov or (516) 676-3564. How do I apply for Homestead Exemption? File Online for Homestead Exemption Reduction.