SB 301 Oklahoma Senate · 2025 Regular Session

Income tax; modifying credit limit for certain institute in certain tax years. Effective date.

SB 301 modifies Oklahoma's income tax credit for donations to biomedical and cancer research institutes. It reduces the annual credit cap for cancer research donations from $2 million to $500,000 starting in 2026, while lowering the biomedical research cap from $2 million to $1.5 million. The bill also adjusts credit limits per donor: individual taxpayers can claim up to $1,000 for cancer research (or $2,000 for joint filers) and $1,000-$2,000 for biomedical research, with businesses able to claim up to $25,000 for biomedical donations. These changes apply to tax years beginning in 2026 and beyond, based on previous year claims.
Bill status passed both 4 of 5 stages cleared
Introduction
Feb 2025
Committee Review
Apr 2025
Senate Passage
Mar 2025
House Passage
Apr 2025
Governor
Introduced Feb 3, 2025 Last action May 12, 2025
Maddy AI version diff · 4 comparisons

What changed between versions

Floor (House) Floor (Senate) · 5 edits
MODERATE
This bill amends Oklahoma's income tax credit for donations to biomedical and cancer research institutes. The Senate version significantly restructures the credit limits, formulas, and caps compared to the House version, introducing new annual funding caps, different calculation methods for future tax years, and updated taxpayer credit limits.
Scope change
The bill's scope remains focused on income tax credits for research institute donations, but the applicability has been modified with new tax year thresholds (2026) and different credit calculation formulas for different types of donations.
FISCAL

Changed annual credit caps from $2 million to $2 million for biomedical research institutes and $1.5 million for cancer research institutes, with different calculation formulas for tax years after 2025.

TIMELINE

Introduced new tax year 2026 and subsequent years provisions with updated credit percentage adjustment formulas and separate caps for different donation types.

ELIGIBILITY

Updated taxpayer credit limits from $1,000 to $1,000-$2,000 depending on filing status, and added a $25,000 business entity credit limit.

REQUIREMENT

Replaced the single $2 million total cap with separate caps for cancer research institutes ($1 million) and biomedical research institutes ($1.5 million) for tax years after 2025.

Added new provision allowing Oklahoma Tax Commission to permit excess credits over $1 million for cancer research institutes and $1.5 million for biomedical research institutes.

Floor votes

How they voted

This bill passed the Senate by voice vote (no roll call recorded).
Full legislative history

Actions timeline

Total actions
24
Key actions
6
Committee
6
Apr 30, 2025
Committee
Referred for enrollment
upper
Apr 30, 2025
Lower · Passed
Third Reading, Measure passed: Ayes: 88 Nays: 0
lower
Apr 16, 2025
Lower · Passed
CR; Do Pass Appropriations and Budget Committee
lower
Apr 8, 2025
Lower · Passed
Recommendation to the full committee; Do Pass Appropriations and Budget General Government Subcommittee
lower
Apr 2, 2025
Committee
Referred to Appropriations and Budget General Government Subcommittee
lower
Mar 12, 2025
Introduced
First Reading
lower
Mar 12, 2025
Upper · Passed
Engrossed to House
upper
Mar 11, 2025
Committee
Referred for engrossment
upper
Mar 11, 2025
Upper · Passed
Measure passed: Ayes: 43 Nays: 0
upper
Feb 10, 2025
Upper · Passed
Reported Do Pass Revenue and Taxation committee; CR filed
upper
Feb 3, 2025
Introduced
First Reading
upper
1 primary · 0 co-sponsors

Sponsors

Role
Legislator
Party
State
District
P
Photo of John Kane
John Kane
RRepublican
OK
11