HB 155 Montana House · 2025 Regular Session

Revise class four residential and commercial property taxes

HB 155 revises property tax laws for Class Four residential and commercial properties. For residential properties, it introduces a graduated tax rate for single-family homes above $1.5 million in market value and sets specific rates for vacant residential lots under $50,000 and certain rental multifamily units over $2 million. For commercial and industrial properties, the bill exempts the first $200,000 of market value from taxation and establishes specific tax rates for the remaining value, with a different rate for golf courses. The bill would have taken effect immediately and applied retroactively to property tax years beginning after December 31, 2024.
Bill status died 3 of 5 stages cleared
Introduction
Jan 2025
Committee Review
Apr 2025
House Passage
Feb 2025
Senate Failed
Apr 2025
Governor
Introduced Jan 9, 2025 Last action May 22, 2025
Maddy AI version diff · 6 comparisons

What changed between versions

HB0155_3(12).pdf HB0155_4.pdf · 6 edits
MODERATE
The bill was renumbered from HB 155.3 to HB 155.4 and significantly revised its text to introduce new property tax classifications. The changes replace the previous focus on Class Four property with a new Class Three Agricultural category and modify tax rates for residential and commercial properties. These updates aim to restructure how agricultural land, mining claims, and residential homes are valued and taxed under Montana law.
Scope change
The bill's scope expanded to include a new Class Three Agricultural property category and altered the classification rules for mining claims and forest land, shifting the legislative focus from primarily Class Four property to a broader mix of agricultural and residential tax structures.
SCOPE

Added a new Class Three Agricultural property category to the bill, expanding the scope of property types subject to specific tax rules.

ELIGIBILITY

Changed eligibility criteria for mining claims, now requiring that the surface not be used for residential or recreational purposes to qualify for specific tax treatment.

FISCAL

Adjusted taxable percentage rates for Class Three agricultural land from 2.16% to 2.05% and modified the calculation method for taxable value.

Revised residential property tax rates, changing the base rate from 1.35% to 1.11% and altering the graduated rate structure for higher-value homes.

ENFORCEMENT

Updated the exemption threshold for commercial and industrial property, raising the initial exempt amount from $200,000 to $400,000.

TECHNICAL

Corrected internal references and section numbers throughout the bill, such as changing references from Section 15-6-134 to include Section 15-6-133.

Floor votes · Senate Apr 25, 2025 · House Feb 27, 2025

How they voted

2028
Failed · 2 other
Total votes 50
Apr 25, 2025
D Democratic18
18 Yea
100% Yea
R Republican32
2 Yea 28 Nay 2
87% Nay
Vote distribution
All Yea All Nay Mixed No data
Full legislative history

Actions timeline

Total actions
62
Key actions
7
Committee
9
Apr 25, 2025
Vote failed
Senate Vote: fail (20-28-2)
senate
Apr 16, 2025
Upper · Passed
(S) Committee Report - (S) Taxation
upper
Apr 16, 2025
Upper · Passed
(S) Committee Executive Action - (S) Taxation
upper
Mar 4, 2025
Committee
(S) Referred to Committee - (S) Taxation
upper
Feb 27, 2025
House · Passed
House Vote: pass (68-30-2)
house
Feb 21, 2025
Lower · Passed
(H) Committee Report - (H) Appropriations
lower
Feb 21, 2025
Lower · Passed
(H) Committee Executive Action - (H) Appropriations
lower
Feb 6, 2025
Committee
(H) Rereferred to Committee - (H) Appropriations
lower
Jan 31, 2025
Lower · Passed
(H) Committee Report - (H) Taxation
lower
Jan 31, 2025
Lower · Passed
(H) Committee Executive Action - (H) Taxation
lower
Jan 10, 2025
Committee
(H) Referred to Committee - (H) Taxation
lower
Jan 9, 2025
Introduced
(H) Introduced
lower
1 primary · 0 co-sponsors

Sponsors

Role
Legislator
Party
State
District
P
Photo of Mark Thane
Mark Thane
DDemocratic
MT
89