Cole County Courthouse

A new lawsuit filed in Cole County argues lawmakers violated the Constitution by creating a sales tax exemption used by manufacturers and mining companies.

As Missouri lawmakers consider changes to property taxes and look ahead to an election-year session where they again are likely to debate eliminating the sales tax on groceries, they face the unanswered question of whether the constitution allows them to take away a source of local revenue.

Two southeast Missouri counties are asking the courts to answer that question after losing one-fifth of their sales tax revenue because of an exemption enacted in 2021. In a bill designed to capture sales tax from online purchases, the legislature expanded an exemption for mines and factories, first enacted in 2007, for utilities and equipment purchases.