Missouri became liable for a larger share of food-aid costs on Wednesday, as new federal rules tying state payments to administrative error rates took effect. State officials estimated the change could cost Missouri roughly $150 million.

The cost-sharing requirements stem from the 2025 federal budget reconciliation law, which shifted a portion of Supplemental Nutrition Assistance Program (SNAP) costs onto states with high payment error rates. Missouri's error rate exceeded the federal threshold, exposing the state to the steepest penalty tier under the new formula.

The Missouri Department of Social Services, which administers SNAP in the state, warned legislators that the added burden was not fully accounted for in the current budget. The U.S. Department of Agriculture confirmed that the cost-sharing provisions began with the new federal fiscal year on July 1.

The shift placed pressure on Governor Mike Kehoe and Republican legislative leaders to decide whether to absorb the cost, cut administrative spending, or seek to reduce the state's error rate. Advocacy groups, including Empower Missouri, warned that the financial strain could threaten benefits for hundreds of thousands of low-income residents.

Similar liabilities are expected to hit other states with elevated error rates, making Missouri an early test of how the federal cost-sharing model reshapes state budgets and food-aid programs nationwide.