Iowa prepares for property tax reforms and constitutional amendment

Iowa is preparing for significant shifts in property and income tax policy. Senate File 2472, signed into law in May 2026, is set to take effect on January 1, 2027. The legislation aims to save homeowners approximately $4.2 billion over six years by limiting the annual growth of property tax revenue from certain levies to 2 percent. Additionally, the law replaces the homestead tax credit with a homestead tax exemption, which exempts 10 percent of a home’s taxable value from taxation.

Local governments, including Iowa City and Johnson County, are currently reviewing budgets and evaluating potential changes to services and fees in anticipation of these shifts. While supporters argue the bill prioritizes family budgets over government certainty, critics and some organizations have raised concerns regarding the long-term flexibility of state finances.

In the upcoming November election, voters will also decide on Amendment 1. This proposal would amend the Iowa Constitution to require a two-thirds majority vote in both the Iowa House and Senate before any individual or corporate income tax rates can be increased. Opponents of the amendment, including leadership from the League of Women Voters of Iowa, argue that such a requirement could permanently limit the ability of future elected officials to respond to unforeseen economic needs or emergencies.