IA HSB758

Shifts the burden of proof in property tax assessment protests and appeals from property owners to government officials once the complainant offers any evidence that market value differs from the assessor's determination, effective for assessment years beginning January 1, 2026.

Removes the previous requirement (for 2018-2025 assessment years) that complainants provide "competent" evidence to shift the burden of proof, now requiring only that evidence be offered.

Establishes that an assessment is not equitable if the appraised property value exceeds the median appraised value of similar and comparable properties in the same geographical area.

Creates a presumption that a property's classification remains unchanged for four subsequent assessment years after being adjudicated by the property assessment appeal board or court, with the burden on anyone asserting a change.

Applies retroactively to January 1, 2026, for assessment years beginning on or after that date.