Friday, September 18, 2026
After TAX After TAX
What you keep is what counts.

Montana taxes

5.65%Top income tax rate (2026)
$47,500Top bracket begins (single)
NoneState estate tax exemption
NoInheritance tax

Capital gains: Long-term capital gains taxed at 3.0% and 4.1%.

What changed: Top rate cut from 5.9% to 5.65% in 2026, with 5.4% scheduled for 2027 (HB337).

Source: https://taxfoundation.org/data/all/state/state-income-tax-rates-2026/

Law Tracker

Legislation in Montana

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January 1, 2026Montana top income tax rate cut to 5.65% (HB337)
The top ordinary rate fell from 5.9% to 5.65% and capital gains brackets were realigned. Montana's new split property tax roll raises taxes on second homes and short-term rentals from 2026.
In effect
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