HB 424 Montana House · 2025 Regular Session

Revise taxes for class 17 data center property

HB 424 revises property tax classifications for data center property. It modifies the types of property included in Class seventeen for qualified data centers, and extends the timeframe within which this data center property must be built. The bill also revises ownership requirements for Class seventeen data center property. Additionally, it updates the classification of certain dedicated communications infrastructure in Class thirteen, extending its relevant timeframe.
Bill status signed all 5 stages cleared
Introduction
Feb 2025
Committee Review
Apr 2025
House Passage
May 2025
Senate Passage
May 2025
Signed into Law
May 2025
Introduced Feb 7, 2025 Signed May 19, 2025
Maddy AI version diff · 13 comparisons

What changed between versions

HB0424_X(7).pdf HB0424_X(8).pdf · 1 edit
MINOR
The bill removes an unnecessary semicolon from the title, clarifying that the legislation extends the construction timeline for data center property and revises ownership rules. This technical edit improves the readability of the act without altering the underlying policy or legal requirements.
TECHNICAL

Removed a redundant semicolon in the bill title to correct the grammatical structure.

Floor votes · Senate Apr 22, 2025 · House Mar 26, 2025

How they voted

446
Passed
Total votes 50
Apr 22, 2025
D Democratic18
14 Yea 4 Nay
77% Yea
R Republican32
30 Yea 2 Nay
93% Yea
Vote distribution
All Yea All Nay Mixed No data
Full legislative history

Actions timeline

Total actions
51
Key actions
9
Committee
6
May 13, 2025
Signed into law
(H) Signed by Governor
lower
May 7, 2025
Upper · Passed
(S) Signed by President
upper
May 6, 2025
Lower · Passed
(H) Signed by Speaker
lower
Apr 22, 2025
Senate · Passed
Senate Vote: pass (44-6)
senate
Apr 8, 2025
Upper · Passed
(S) Committee Report - (S) Taxation
upper
Apr 8, 2025
Upper · Passed
(S) Committee Executive Action - (S) Taxation
upper
Mar 27, 2025
Committee
(S) Referred to Committee - (S) Taxation
upper
Mar 26, 2025
House · Passed
House Vote: pass (84-15-1)
house
Feb 19, 2025
Lower · Passed
(H) Committee Executive Action - (H) Taxation
lower
Feb 14, 2025
Lower · Passed
(H) Committee Report - (H) Taxation
lower
Feb 7, 2025
Committee
(H) Referred to Committee - (H) Taxation
lower
Feb 7, 2025
Introduced
(H) Introduced
lower
1 primary · 0 co-sponsors

Sponsors

Role
Legislator
Party
State
District
P
Photo of Katie Zolnikov
Katie Zolnikov
RRepublican
MT
44