This bill amends section 689.261 of the Florida Statutes to enhance the disclosure of estimated ad valorem taxes for residential properties listed on public-facing online platforms. It introduces definitions for "listing platform" and "property," and mandates that these platforms include estimated ad valorem taxes in their listings. The bill prohibits the use of the current owner's ad valorem assessment or taxes for calculating these estimates under certain conditions and requires listing platforms to use specified methods for calculation. Additionally, if the current owner's taxes are not estimated using a tax estimator or buyer payment calculator, they cannot be displayed, and a link to the county property appraiser's homepage and tax estimator must be provided instead.

The bill also establishes immunity for listing platforms against claims related to inaccuracies in the estimated ad valorem taxes. It requires the Department of Revenue to develop a formula for calculating these estimates and to publish a countywide aggregate average millage rate annually. Furthermore, the department is tasked with maintaining a table of links to each county's property appraiser's homepage and tax estimator on its website. The act is set to take effect on July 1, 2026.