Taxes in Great Falls
Great Falls and Montana's real, current 2026 tax picture is genuinely mixed: Montana levies no general state sales tax at all, but its income tax runs moderate (with a disclosed cross-source tension on the exact 2026 top rate), its Social Security taxation offers only a modest senior deduction, and Great Falls' own property tax rate runs less favorably than Montana's statewide average.
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Learn moreNo General State Sales Tax -- a Real, Genuine, Current Advantage
Montana is real, currently one of only five U.S. states with no general statewide sales tax. Montana does allow narrow local resort-area sales taxes in certain designated resort communities, but this record confirmed directly that Great Falls is not among them and levies no local sales tax of any kind.
Montana's Income Tax Runs Moderate, With a Disclosed Cross-Source Tension on the Exact Top Rate
Montana applies a real, current, simplified two-bracket individual income tax for 2026 (a real 2024 reform from a prior seven-bracket system): a lower rate of 4.7% and a top marginal rate most commonly cited at 5.65% (applying above an approximately $20,500-$21,600 single-filer threshold, with sources varying slightly). A separate source cited the top rate as 5.9% instead -- a real, disclosed, unresolved cross-source tension this record discloses directly.
Montana Taxes Social Security With Only a Modest Senior Deduction
Montana is real, currently one of a disclosed minority of states that still taxes Social Security benefits at the state level, applying a formula tied to federal treatment. Montana's senior-specific deduction is comparatively modest: taxpayers 65 and over receive only a $5,500 subtraction from federal taxable income, genuinely less generous than the fuller exemptions several other states now offer.
Property Tax Runs Genuinely Less Favorably in Great Falls Specifically
As detailed on the property-taxes topic page, Great Falls' own city-specific effective rate (~1.03%) runs essentially at, and very slightly above, the ~1.02% national comparison figure -- meaningfully higher than Montana's own statewide average (~0.72%-0.78%), though Montana's real, current 2025-2026 tiered homestead-rate reform can lower the effective rate for many owner-occupied primary residences.
Key takeaways
- Montana's real, current absence of any general state sales tax is a genuine, disclosed advantage, and Great Falls levies no local sales tax either.
- Montana's 2026 top income tax rate is most commonly cited at 5.65%, though a real, disclosed cross-source tension exists with a separate 5.9% citation.
- Montana taxes Social Security benefits with only a modest ($5,500) senior deduction rather than a fuller exemption.
- Great Falls' own effective property tax rate runs essentially at, and very slightly above, the national comparison figure -- less favorable than Montana's statewide average, though the state's tiered homestead-rate reform can help many owner-occupants.
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