Revenue and taxation; income tax; income tax credit for qualified economic development expenditures; effective date.
HB 4426 creates a state income tax credit for businesses making qualified economic development expenditures in specific Oklahoma locations. It allows eligible businesses to claim up to 10% of qualifying construction, equipment, or infrastructure costs (capped at $6 million per project), or up to 50% for rail infrastructure (capped at $3 million). The credit can be assigned to project affiliates like vendors or investors and carried forward for up to five years, with an annual state cap of $12 million. The bill applies to projects in counties under 100,000 population, industrial parks, economic development zones, or near qualifying railroads, effective November 2026.
Bill status
signed
all 5 stages cleared
Introduction
Feb 2026
Committee Review
Apr 2026
House Passage
Feb 2026
Senate Passage
Apr 2026
Signed into Law
May 2026
Introduced Feb 2, 2026
Signed May 6, 2026
Maddy AI version diff · 4 comparisons
What changed between versions
Floor (House)
→
Floor (Senate)
·
3 edits
MINOR
The bill was reformatted to reflect its progression from the House to the Senate floor, including updated headers and page footers. The core legislative text regarding tax credit definitions, funding limits, and eligibility criteria remains unchanged, indicating no substantive policy modifications were made during this specific stage of the legislative process.
TECHNICAL
Updated document headers and footers to indicate the bill is now the 'Senate Floor Version' dated April 6, 2026, replacing the original 'House of Representatives' version.
Adjusted the bill title line to read 'ENGROSSED HOUSE BILL NO. 4426' to reflect its status after passing the House.
Reformatted the introductory text regarding the bill's purpose to align with Senate floor conventions.
Floor votes · Senate Apr 29, 2026 · House Feb 24, 2026
How they voted
30–14
Passed · 6 other
Total votes 50
Apr 29, 2026
D
Democratic9
66% Yea
R
Republican41
58% Yea
Vote distribution
All Yea
All Nay
Mixed
No data
Full legislative history
Actions timeline
Total actions
22
Key actions
7
Committee
4
May 6, 2026
Signed into law
Approved by Governor 05/05/2026
lower
Apr 30, 2026
Committee
Referred for enrollment
lower
Apr 29, 2026
Upper · Passed
Engrossed measure signed, returned to House
upper
Apr 29, 2026
Upper · Passed
Measure passed: Ayes: 28 Nays: 14
upper
Apr 6, 2026
Upper · Passed
Reported Do Pass Revenue and Taxation committee; CR filed
upper
Feb 25, 2026
Introduced
First Reading
upper
Feb 25, 2026
Lower · Passed
Engrossed, signed, to Senate
lower
Feb 24, 2026
Committee
Referred for engrossment
lower
Feb 24, 2026
Lower · Passed
Third Reading, Measure passed: Ayes: 76 Nays: 20
lower
Feb 18, 2026
Lower · Passed
CR; Do Pass Appropriations and Budget Committee
lower
Feb 2, 2026
Introduced
First Reading
lower
2 primary · 0 co-sponsors
Sponsors
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