A bill for an act relating to property taxes and local government funding by modifying the methodology for determining actual value of property, certain levy rates, bonding procedures, assessment protests, and assessment limitations of certain classes of property, and including retroactive applicability provisions.

HF 2577 modifies Iowa's property tax system to limit annual increases in taxable property values. For residential, commercial, and industrial properties, it prohibits value increases exceeding the prior year's value (2027-2029) or an inflation-linked factor (2030+), unless specific changes occur like ownership shifts, boundary adjustments, or major improvements over 5% of current value. The bill requires assessors to base values on fair market value using standard appraisal methods while restricting consideration of business financial data for commercial/industrial properties. These changes directly affect property owners and local governments relying on property tax revenue for funding. The bill also includes retroactive provisions for certain tax years.