Montana

2025 Tax Guide

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State income tax rates (2025)

Single Filers

Up to $21,4994.7%
$21,500+5.9%

Married Filing Jointly

Up to $43,0994.7%
$43,100+5.9%
State capital gains tax rates (2025)

Single Filers

Up to $21,4993%
$21,500+4.1%

Married Filing Jointly

Up to $43,0993%
$43,100+4.1%
Deductions/exemptions (2025)
Single:$14,600
Married Filing Jointly:$29,200
Notes
  • Age 65+ exemption of $5,660

Last updated: August 25, 2025

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