Tax credit; expanding forms of taxation for which a credit is allowed; clean-burning vehicle fuel; hydrogen fuel cells; effective date.
HB 1427 creates tax credits for Oklahoma taxpayers who invest in qualifying clean-burning motor vehicle fuel equipment. It directly affects vehicle owners and businesses that install or purchase equipment allowing vehicles to run on compressed natural gas, hydrogen, liquefied natural gas, or liquefied petroleum gas. The bill provides tiered credits: up to $5,500 for light vehicles (under 6,000 lbs), up to $100,000 for heavy trucks (over 26,500 lbs), and 45% of costs for commercial refueling stations. Credits are limited to new, certified equipment meeting safety standards and must be claimed against state income tax. Unused credits can be carried forward for up to five years.
Bill status
signed
all 5 stages cleared
Introduction
Feb 2025
Committee Review
Mar 2026
House Passage
Mar 2026
Senate Passage
Mar 2026
Signed into Law
Mar 2026
Introduced Feb 3, 2025
Signed Mar 23, 2026
Maddy AI version diff · 7 comparisons
What changed between versions
Floor (House)
→
Floor (Senate)
·
4 edits
MODERATE
The bill was converted from a House floor version to a Senate floor version, incorporating amendments that significantly alter the tax credit amounts and eligibility criteria. The most substantive change is the expansion of the credit for heavy vehicles, increasing the maximum credit for vehicles over 26,501 pounds from $26,000 to $100,000. Additionally, the definition of eligible property was modified to include noncommercial natural gas delivery equipment for home use, and the credit calculation for commercial delivery equipment was adjusted.
Scope change
The scope of the tax credit was expanded to include residential natural gas delivery equipment and increased for heavier commercial vehicles.
FISCAL
The maximum tax credit for heavy vehicles (over 26,501 pounds) was increased from $26,000 to $100,000.
ELIGIBILITY
Eligible property now includes equipment used to deliver natural gas from a private home to a vehicle for noncommercial purposes.
DEFINITION
The definition of 'qualified clean-burning motor vehicle fuel property' was updated to explicitly include residential natural gas delivery equipment.
REQUIREMENT
The credit calculation for commercial delivery equipment (paragraph 4) was adjusted, changing the percentage and cap amounts compared to the House version.
Floor votes · Senate May 8, 2025 · House Mar 24, 2025
How they voted
29–15
Passed · 5 other
Total votes 49
May 8, 2025
D
Democratic9
66% Nay
R
Republican40
65% Yea
Vote distribution
All Yea
All Nay
Mixed
No data
Full legislative history
Actions timeline
Total actions
42
Key actions
11
Committee
9
Amendments
2
Mar 12, 2026
Committee
Referred for enrollment
lower
Mar 12, 2026
Lower · Passed
Fourth Reading, Measure passed: Ayes: 57 Nays: 20
lower
Mar 12, 2026
Lower · Passed
SA's read, adopted
lower
Mar 11, 2026
Upper · Passed
Engrossed to House
upper
Mar 10, 2026
Committee
Referred for engrossment
upper
Mar 10, 2026
Upper · Passed
Measure passed: Ayes: 45 Nays: 0
upper
Mar 10, 2026
Introduced
General Order, Amended by Floor Substitute
upper
May 8, 2025
Upper · Passed
Motion to reconsider vote adopted: Ayes: 27 Nays: 15
upper
May 7, 2025
Introduced
General Order, Amended
upper
Apr 23, 2025
Upper · Passed
Reported Do Pass Appropriations committee; CR filed
upper
Apr 17, 2025
Committee
Referred to Appropriations
upper
Apr 17, 2025
Upper · Passed
Reported Do Pass as amended Energy committee; CR filed
upper
Mar 25, 2025
Introduced
First Reading
upper
Mar 25, 2025
Lower · Passed
Engrossed, signed, to Senate
lower
Mar 24, 2025
Committee
Referred for engrossment
lower
Mar 24, 2025
Lower · Passed
Third Reading, Measure passed and Emergency failed: Ayes: 65 Nays: 25; Ayes: 65 Nays: 25
lower
Mar 6, 2025
Lower · Passed
CR; Do Pass, amended by committee substitute Appropriations and Budget Committee
lower
Feb 24, 2025
Lower · Passed
Recommendation to the full committee; Do Pass, amended by committee substitute Appropriations and Budget Finance Subcommittee
lower
Feb 4, 2025
Committee
Referred to Appropriations and Budget Finance Subcommittee
lower
Feb 3, 2025
Introduced
First Reading
lower
2 primary · 0 co-sponsors
Sponsors
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