Income tax; modifying certain income tax rate for certain tax years. Effective date.
SB308 would substantially phase down Oklahoma’s individual income tax over several years and eliminate it entirely beginning in tax year 2029. The bill amends the state income tax statute to set a new rate schedule for tax year 2024, then progressively lowers rates and expands the amount of income taxed at 0% in 2025, 2026, 2027, and 2028. Under the proposal, the top individual rate would fall from 4.75% in 2024 to 3.75% in 2025, 2.75% in 2026, 1.75% in 2027, and 0.75% in 2028, before reaching 0% in 2029 and later years.
The bill also removes the deduction for federal income taxes paid in the affected years and retains separate provisions for nonresident aliens, corporations, foreign corporations, and fiduciaries. Corporate income tax provisions are not reduced by this bill; the corporate rate remains at 4%, and the bill continues withholding and filing rules for certain nonresident and foreign corporate income. In effect, the measure is focused primarily on individual income tax relief rather than a broader overhaul of all state income taxes.
If enacted, SB308 would significantly reduce state revenue from individual income taxes and would alter the Oklahoma Tax Code by replacing existing individual rate schedules with a scheduled phaseout. It would affect resident and nonresident individuals, married filers, heads of household, trusts, and estates, while leaving corporate taxation largely unchanged. The bill’s effective date is November 1, 2025, though the rate changes are tied to future tax years.
Because there are no committee transcripts or recorded votes provided, the overall sentiment cannot be measured from legislative debate or roll calls. Based on the bill text alone, the measure appears strongly tax-cut oriented and likely intended to appeal to taxpayers and advocates of smaller government, but the available record does not show formal support or opposition.
The main point of contention is likely fiscal: eliminating the individual income tax would reduce a major source of state revenue and could raise concerns about funding for education, health care, public safety, and other state services. Another likely issue is fairness and distribution, since the bill benefits income taxpayers broadly but may have different effects across income levels and filing categories. No specific opponents or supporters are identified in the available materials.
SB308 would amend 68 O.S. 2021, Section 2355, the state’s individual income tax statute, to create a multi-year reduction schedule culminating in a full repeal of the Oklahoma individual income tax beginning in tax year 2029. It would also revise related statutory language, update references, and preserve separate tax treatment for corporations, foreign corporations, fiduciaries, and withholding obligations for certain nonresident aliens. The bill would therefore materially change the Oklahoma Tax Code by phasing out individual income taxation while leaving most business income tax provisions intact.
No committee discussion or vote history was provided, so there is no recorded legislative sentiment to summarize from debate or roll calls. From the bill text, the measure is clearly pro-tax-cut and pro-phaseout of the individual income tax, suggesting support from taxpayers and anti-tax advocates, but the available record does not show whether lawmakers expressed support, concern, or opposition. The absence of transcripts and votes means sentiment cannot be reliably inferred beyond the bill’s policy direction.
The likely central contention is the fiscal impact of eliminating the individual income tax, since that would reduce state revenues and could require offsetting cuts, alternative taxes, or use of reserves. Opponents would likely focus on the effect on funding for core state programs, while supporters would emphasize tax relief, economic competitiveness, and simplicity. A secondary point of contention is that the bill does not reduce corporate income taxes, which could prompt debate over whether the tax burden is being shifted rather than broadly reduced.