Residential properties that serve as the property owner's or a tenant's primary residence for a minimum of 183 days per calendar year receive an exemption of 45% of fair market value. As a result, the primary residence is only assessed and taxed based on the remaining 55% of its fair market value. The Assessor shall grant the exemption to the first acre of land. If a qualifying property is not currently receiving the exemption, the owner will need to apply with the County Assessor.