Senate committee advances broad tax plan with income-tax triggers and retirement changes

The Mississippi Senate Finance Committee advanced House Bill 1 on March 17 after extended debate about long-term revenue risks and retirement-system changes. Chair opened the bill as a Senate strike-all and described a multi-year plan to reduce the income-tax rate on taxable income above $10,000 through revenue-based triggers and reserve-fund thresholds. The sponsor explained a $400,000,000 baseline as the rough annual cost to cut 1 percentage point and said reductions would follow if revenue growth and reserve conditions are met.

The measure would reduce the grocery tax from 7% to 5% beginning July 1, 2025, index the gasoline excise tax with a 3¢ increase per year, and set apportionments for new excise revenue: 23.25% to State Aid Road, 2.75% to the strategic multimodal investment fund and the remainder to MDOT for highway projects. "We're essentially taking the difference in the revenue generated and the expenses from the appropriations in the following year," the chair said in explaining the triggers. The chair also described adjustments to sales- and use-tax distributions intended to protect municipal and institutional shares.

Sections 14–22 would change the Public Employees' Retirement System (PERS). "The sections that address PERS is the tier 5 that we passed, on the floor," Senator Sparks said, summarizing the proposal as a hybrid effective for employees hired after March 1, 2026 — about 4% to a defined benefit and 5% to a defined contribution with eight-year vesting and no guaranteed cost-of-living adjustment. Sparks added the plan would freeze the Optional Retirement Plan (ORP) employer match at the current 14.9% for existing arrangements and limit new ORP employer matches to up to 9% during the transition window.

The bill drew an extended floor-style dissent from Senator Bridal, who argued the income-tax reductions would shift burdens to sales taxes and imperil funding for highways and retirement obligations. "This is a very sad day," Bridal said, warning the legislation could ultimately lead to abolition of the income tax and long-term funding shortfalls for basic services. He said sales taxes fall disproportionately on lower-income households and urged caution about locking future legislatures into revenue triggers.

Despite the dissent and a series of follow-up questions from members seeking numeric clarifications, the committee adopted the amendment, voted and reported House Bill 1 out of committee. The committee record shows the amendment adoption and a successful 'ayes have it' outcome; the bill will proceed to the next legislative stage for further consideration.