Directs Legislative Revenue Officer to study property tax reform and report findings to interim committees of Legislative Assembly related to revenue no later than September 15, 2022.] Authorizes county with population of less than 15,000 to adopt property tax exemption for newly constructed single-family dwellings built and occupied as primary residences by individuals with annual taxable income of not more than $75,000 if filing separately or not more than $150,000 if filing jointly. Requires county to prescribe application forms for precertification process and exemption. Limits new exemptions to no more than five dwellings per county per property tax year. Allows county to determine length of exemption, between three and five years. Prohibits new exemptions for property tax years beginning on or after July 1, 2032. Takes effect on 91st day following adjournment sine die.