A bill for an act relating to local government taxes, budgets, and authority, by establishing property tax limitations and modifying provisions relating to the assessment and taxation of property, certain taxpayer notices, bond issuances, and councils of governments, and including applicability and retroactive applicability provisions.(See HF 2745.)
HSB596 is a broad local-government tax and finance bill that would impose a new cap on the amount of property tax dollars most local governmental entities can certify for levy, beginning with budgets for fiscal years starting July 1, 2027. The cap would generally limit levy growth to 102 percent of the prior year’s certified property tax dollars, with adjustments for new valuation and voter-approved levies, and would require the Department of Management to reduce levies on a pro rata basis if a budget exceeds the limit. The bill also creates a new residential property tax exemption for assessment years beginning on or after January 1, 2026, equal to the lesser of the property’s taxable value or $25,000, and expressly excludes school district levies from that exemption.
The bill also revises property tax notice requirements by expanding and standardizing the annual taxpayer statement mailed by county auditors. Those notices would include more detailed information about current and proposed taxes, exemptions, hearing information, and online resources, and would be written in plain language with contact information for each taxing entity. In addition, the bill adds a new duty for councils of governments to help local governments coordinate, share, or regionalize services.
A substantial portion of the bill changes debt and bond issuance rules for counties, cities, townships, regional transit districts, school districts, and related entities. For many local governments, the bill would make voter approval and a 60 percent threshold the default requirement for issuing general obligation bonds, including for purposes that current law treats as “essential” and therefore often allows without an election. It also removes several existing petition-based pathways that currently allow bond questions to be forced onto the ballot or, in some cases, allow issuance without an election if no petition is filed. The bill makes related conforming changes across multiple code chapters governing county, city, township, transit, drainage, and school-district borrowing.
The bill’s impact on state law would be significant: it would add a new statewide property tax limitation, create a new residential exemption, expand mandatory taxpayer disclosure, and rework the financing authority of local governments. It would affect counties, cities, townships, special districts, regional transit districts, school districts, taxpayers, and the Department of Management, while leaving debt-service levies outside the new property tax cap. Several provisions are retroactive or have delayed applicability, including the residential exemption’s retroactive application to assessment years beginning January 1, 2026, and the levy cap and notice changes applying to budgets beginning July 1, 2027.
The general sentiment reflected in the available voting history is mixed but leaning favorable in committee, as the House Ways and Means report passed 19-6. The bill appears to be framed as taxpayer relief and greater transparency, but it also imposes tighter limits and more election requirements on local borrowing, which likely explains the opposition. The main points of contention are the new property tax cap, the residential exemption’s effect on local revenues, and the shift toward requiring voter approval for a wider range of bond issuances, especially for counties, cities, and school districts.
HSB596 would amend multiple chapters of the Iowa Code to constrain local property tax growth, expand residential property tax relief, require more detailed annual taxpayer notices, add regional service-coordination duties for councils of governments, and substantially revise local-government bonding procedures. It would directly affect counties, cities, townships, special districts, regional transit districts, school districts, taxpayers, and the Department of Management, while excluding school district levies from the new residential exemption and excluding debt-service levies from the new property tax cap. The bill also includes retroactive and delayed applicability provisions that would phase in different parts of the measure over 2026 and 2027.
The available vote history suggests the bill had meaningful support in the House Ways and Means Committee, passing 19-6. The overall tone of the bill is pro-taxpayer and pro-transparency, with a strong emphasis on limiting local property tax growth and increasing voter control over local debt. At the same time, the bill would significantly restrict local government financing flexibility, which likely accounts for the recorded opposition.
The most notable areas of contention are the new 102 percent property tax levy cap, the $25,000 residential property tax exemption, and the requirement that many bond issuances obtain 60 percent voter approval. Local governments and taxing authorities are likely to object to the revenue loss and reduced borrowing flexibility, while supporters are likely to emphasize tax relief, notice improvements, and greater taxpayer oversight. School districts are a special point of distinction because the residential exemption does not apply to school levies, but the bill still tightens school-district bonding rules, which could draw separate concern from education officials.