SB 323 Montana Senate · 2025 Regular Session

Revise individual income tax rates and earned income credit

SB 323 would reduce Montana's top individual income tax rate from 5.9% to 4.9% for most taxpayers, including married couples filing jointly, heads of household, and single filers. It also increases the state's Earned Income Tax Credit, providing greater tax relief for low-to-moderate income workers. The bill amends Montana's tax code (sections 15-30-2103 and 15-30-2318) to adjust tax brackets and credit amounts, with changes applying to income above specific thresholds ($41,000 for joint filers, $30,750 for heads of household, and $20,500 for others). The bill was tabled in committee and died in process without becoming law.
Bill status died 2 of 4 stages cleared
Introduction
Feb 2025
Committee Review
Feb 2025
Senate Failed
Apr 2025
Governor
Introduced Feb 13, 2025 Last action May 23, 2025
Maddy AI version diff · 1 comparison

What changed between versions

LC0447.pdf SB0323_1.pdf · 3 edits
MINOR
The bill was renumbered from LC 447 to SB 323 and updated with new sponsors. The text includes specific tax rate adjustments, lowering the rate from 5.9% to 4.9% for income over $20,500. A new eligibility category was added to extend tax obligations to estates and trusts not exempt from federal taxation.
Scope change
The bill's scope was expanded to include estates and trusts that are not exempt from federal taxation, whereas the previous version did not explicitly list this group.
TECHNICAL

The bill number was changed from LC 447 to SB 323, and the list of sponsors was updated.

REQUIREMENT

Tax rates were adjusted, reducing the percentage from 5.9% to 4.9% for taxable income exceeding $20,500.

ELIGIBILITY

New provisions were added to require taxation for estates and trusts that are not exempt under the Internal Revenue Code.

Floor votes · Senate Apr 2, 2025

How they voted

1832
Failed
Total votes 50
Apr 2, 2025
D Democratic18
9 Yea 9 Nay
50% Nay
R Republican32
9 Yea 23 Nay
71% Nay
Vote distribution
All Yea All Nay Mixed No data
Full legislative history

Actions timeline

Total actions
27
Key actions
0
Committee
1
Amendments
1
Apr 2, 2025
Vote failed
Senate Vote: fail (18-32)
senate
Apr 2, 2025
Amended
(S) Tabled in Committee - (S) Taxation
upper
Feb 14, 2025
Committee
(S) Referred to Committee - (S) Taxation
upper
Feb 13, 2025
Introduced
(S) Introduced
upper
1 primary · 0 co-sponsors

Sponsors

Role
Legislator
Party
State
District
P
Photo of Josh Kassmier
Josh Kassmier
RRepublican
MT
13