After a run of Florida property tax coverage, this piece heads west to a Colorado measure on the November ballot that touches property taxes in a way most people misunderstand: Proposition NN. Understanding it requires understanding TABOR, the Taxpayer Bill of Rights that Colorado voters passed in 1992, which caps how much revenue the state can keep and requires anything collected above that cap to be refunded to taxpayers through the familiar TABOR refund check. Against the backdrop of a severe property tax shock, with some counties seeing assessed values jump 35% to 45% in a single year, the state rolled out relief including homestead exemptions for seniors and disabled veterans, which it must reimburse local governments and school districts to provide.

Prop NN would let the state keep and spend money collected above the TABOR cap rather than refunding it, directing that revenue toward K-12 education and toward covering the cost of those exemptions. Crucially, it does not change tax rates, assessments, appeal deadlines, or existing exemptions, and it will not directly lower anyone’s bill, what it changes is how the state handles its surplus. Supporters, led by sponsor State Senator Jeff Bridges, argue it protects two promises at once by keeping both school funding and senior and veteran tax relief stable, while opponents counter that every retained dollar is money out of taxpayers’ pockets, that voters already rejected similar measures like Proposition CC and Proposition HH, and that it patches a symptom rather than fixing the underlying system.

For investors, the honest conclusion is that Prop NN will not change a Colorado deal today, but it signals where state lawmakers are heading, and a legislature returning to voters again and again to patch the same problem usually means more ballot measures are on the way.