Modifies provisions relating to income tax

HB 1112 modifies Missouri's individual income tax structure. It temporarily reduces the top tax rate to 4.95% for tax years 2023-2025, then allows further reductions (starting in 2024) if state revenue exceeds specific thresholds by $175 million or more, with additional cuts possible through 2027 via a "tax reform fund" if revenue targets are met. The bill also requires annual inflation adjustments to tax brackets starting in 2017, ensuring brackets automatically rise with inflation. These changes directly affect all Missouri residents with taxable income by altering how their income is taxed under the state's progressive rate system. For tax years beginning in 2026, the top rate is set permanently at 4%.