US-MT
Montana tax residency rules
Threshold: 180 days · Day Count · Calendar year (Jan 1 – Dec 31)
Rules tracked by Tax Days
MT 180-Day Rule
- Type
- Day Count
- Threshold
- 180 days
- Period
- Calendar year (Jan 1 – Dec 31)
Tax residency triggers if you're physically present for more than the threshold number of days in a calendar year.
Montana considers you a resident if you maintain a permanent place of abode and spend more than 180 days in the state.
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