Within two weeks of passing the legislation, House Speaker Jon Patterson had established an interim committee to study property taxes amid questions about the property tax provision’s constitutionality. In 75 counties, voters could prevent property taxes from rising more than 5% per year from a base amount, or the rate of inflation, whichever is greater. In 22 other counties, voters could freeze their homes’ property taxes with exceptions for newly voted levies and additional value from improvements. “No rational basis was used to categorize counties between those where the credit could result in a freeze on property tax revenue growth, a 5% cap on property tax revenue growth, or neither,” plaintiffs wrote in their initial filing. Some of the school districts joining the lawsuit cover multiple counties that, if approved by voters, would have different levels of tax relief.