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Montana Income Tax (2026)
Info: Graduated, topping out at 5.65% in 2026 (down from 5.9%); the lower 4.7% rate applies up to $47,500 single / $95,000 joint.
InfoVerified May 31, 2026
Tax rules change at the state line.Track them in the free LawLert iPhone app and get an alert when you cross into a state where they differ. No account.Get the appGraduated, topping out at 5.65% in 2026 (down from 5.9%); the lower 4.7% rate applies up to $47,500 single / $95,000 joint. No state sales tax.
Official source: revenue.mt.gov →
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