Bozeman vs Big Sky Cost Segregation: Two Adjacent Markets, Different Jurisdictions and Property Mix

Quick answer

Across 5 engine fixtures for the Bozeman area, the differences between Big Sky and the rest of Bozeman come down to three factors: land allocation, property archetype mix, and HOA capital-assessment patterns. See the per-fixture detail below.

Side-by-side per-fixture

Property	Sub-market	Price	Reclass %	Y1 fed savings @ 37%	Land %
Downtown Bozeman SFR STR SFR · STR	Downtown Bozeman	$985,000	25.4%	$76,915	17.1%
MSU-Adjacent Student Rental SFR	MSU-Adjacent Residential	$725,000	16.9%	$37,419	17.4%
Bridger Foothills New-Build STR SFR · STR	Bridger Foothills (north)	$925,000	26.4%	$75,023	16.9%
Gallatin Gateway Big Sky Feeder STR SFR · STR	Gallatin Gateway / Four Corners (Big Sky corridor)	$825,000	26.2%	$65,712	17.8%
Belgrade Suburban LTR SFR	Belgrade / suburban Gallatin County	$525,000	17.1%	$26,940	18.7%

What's the same

• Tax law. Both sub-markets are in Montana, subject to the same state conformity rules: Montana partially decouples from federal §168(k) bonus depreciation. MT historically required addbacks for federal bonus depreciation with recovery over the regular MACRS schedule for state purposes. For 2025+ acquisitions under OBBBA's 100% federal bonus, the MT-side timing mismatch is modest at the 5.9% top rate. The federal §168(k) acceleration is unaffected; only the MT Schedule reconciliation is the variable.
• Federal §168(k) bonus depreciation. 100% under OBBBA, permanently restored for 2025+ acquisitions.
• MACRS classification methodology. Same Rev. Proc. 87-56 asset class life assignments regardless of sub-market.
• Engine methodology. Same RSMeans 2024 base costs, same BLS PPI time index, same geo factor (these are city-level, not sub-market-level).

What's different

• Land allocation. Big Sky typically runs higher on land allocation because of either resort-tier land scarcity premiums or proximity-to-amenity scarcity. This compresses depreciable basis as a percentage of purchase, even though absolute basis is larger.
• Property archetype mix. Big Sky concentrates in ski-in/ski-out condos and luxury chalets, while the broader Bozeman market includes more off-market SFRs and longer-tail product.
• HOA capital assessment patterns. Resort-tier HOAs in Big Sky often levy special assessments for infrastructure (snowmelt, lift access, parking decks). Those assessments add to depreciable basis but distort the per-fixture cost-seg picture if the buyer doesn't separate base purchase from assessments paid.
• STR economics. Different ADR (average daily rate) profiles and material-participation friction.

Which is better for cost-seg ROI?

It depends on what "better" means.

If you measure ROI as Year-1 federal savings dollars: Big Sky wins on absolute dollars (higher purchase prices = larger absolute deductions). If you measure ROI as savings-per-dollar-of-purchase: the broader Bozeman non-resort sub-markets typically win (lower land allocation = more depreciable basis as % of price).

For most buyers, the more useful question is: which sub-market matches my buy-box? If you're already buying $2M+ resort-tier product, the cost-seg differential is a rounding error against your decision drivers. If you're price-shopping across sub-markets and considering both, the broader Bozeman non-resort areas produce more reclassification per dollar.

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