1031 Exchanges in Montana: Rules, Taxes, Insurance, and the Long Arc

A Shop 1031 research page. Reviewed 2026-06-03. Every claim sourced; sources collected at the foot of the page.

Montana is a claw-back state with no sales tax and full §1031 conformity, not a standard Mountain West conforming state. The distinction matters because Montana is one of four U.S. states (with California, Massachusetts, and Oregon) that asserts a continuing claim on Montana-source deferred gain after a §1031 exchange into out-of-state replacement property. The claw-back is codified in Montana Administrative Rule 42.2.308 and tracks the deferred gain on Montana property until the chain of exchanges ends. Montana conforms to federal §1031 through Montana Code Title 15 and taxes recognized boot at the graduated rate topping at 5.9 percent.

§1. 1031 mechanics in Montana

The federal floor applies under 26 U.S.C. §1031 and 26 C.F.R. §1.1031(k)-1. ^{1 2}

Montana conforms to federal §1031 under Montana Code Title 15. Recognized boot is taxed at the Montana graduated rate topping at 5.9 percent following the 2024 reduction. ³

Montana asserts a claw-back on Montana-source deferred gain. Montana Administrative Rule 42.2.308 (Nonresident Calculation of Montana Source Income Realized and Recognized When Montana Property Is Relinquished as Part of a Section 1031 Exchange) establishes the position that when Montana real property is exchanged for out-of-state replacement property, the deferred Montana-source gain remains subject to Montana tax when the chain of deferred exchanges ends. The practical implication is functionally equivalent to California’s and Massachusetts’s claw-backs. Tracking and annual reporting obligations apply. ⁴

Montana imposes no state-level sales tax. There is no state-level real estate transfer tax. Recording fees at the county clerk and recorder are nominal.

Montana imposes no state-level QI registration regime.

Montana is functionally a title-and-escrow state with attorney involvement common in larger commercial transactions.

§2. Property tax in Montana

Montana has an effective property tax rate of approximately 0.74 percent of owner-occupied housing value, below the 1.02 percent national median. The structural mechanics are governed by Montana Code Title 15, Chapter 6, with the Montana Department of Revenue administering centralized assessment supplemented by county processes. Montana classifies property into thirteen classes with different taxable percentage rates applied to market value; the operative class for most commercial property is Class 4 (residential and commercial), with the current commercial taxable percentage rate set by statute. ⁵

Harlow’s note on unit economics. On a $5,000,000 Montana commercial acquisition, year-one property tax runs roughly $35,000 to $60,000 depending on the specific county and the current Class 4 taxable percentage rate.

§3. Property insurance in Montana

Montana property insurance is dominated by wildfire exposure across the mountain and forest corridors, hail and severe-thunderstorm exposure on the eastern plains, and ice-storm and snow-load exposure statewide. The post-2017 wildfire experience (Lodgepole Complex, others) and the continued elevation of wildfire-related losses through the 2020s have tightened the carrier market, with selective non-renewals in wildland-urban-interface zones. The Montana Commissioner of Securities and Insurance regulates carrier conduct. ⁶

Harlow’s note on unit economics. For a $5,000,000 Montana commercial property outside the wildfire interface, expect property-insurance expense in the range of 0.4 to 0.8 percent of insured value. For wildland-urban-interface and mountain property, the range can run 0.6 to 1.4 percent with carrier declination on renewal a structural variable.

§4. Demographic trends

Montana’s population stood at approximately 1.15 million as of 2025 Census estimates, with positive net migration concentrated in the Bozeman, Missoula, and Flathead Valley corridors. Montana has been one of the faster-growing states in percentage terms since 2020, with significant California and Pacific Northwest inbound capital. ^{7 8}

Median household income in Montana was approximately $73,000 in 2024, near the national median. ^{9 10}

The major Montana markets are Billings (approximately 195,000 population, the largest single market), Missoula (approximately 125,000), Bozeman-Gallatin Valley (approximately 130,000 and the strongest growth signal), Great Falls (approximately 85,000), Helena (approximately 90,000), and the Flathead Valley/Kalispell corridor (approximately 110,000).

§5. Unique legal and financial considerations

The first is the Montana claw-back, addressed in §1. Montana-resident exchangers deferring gain into out-of-state replacement should plan for the long-term Montana tax obligation.

The second is the Bozeman and Flathead Valley pricing premium. Both markets have absorbed concentrated California and out-of-state inbound capital and run cap rates that compressed materially since 2020.

The third is the absence of state sales tax, which affects tenant economics on retail and hospitality property in Montana relative to neighboring states.

The fourth is the agricultural land assessment under the productive-value framework.

The fifth is the Indian Country jurisdictional overlay applicable to certain parcels on or near tribal lands. Counsel review is appropriate.

§6. Closing summary and the work ahead

The Montana 1031 exchanger is operating in a market with a clear set of distinguishing features. The federal floor applies; Montana fully conforms at graduated rates topping at 5.9 percent; the Montana claw-back on out-of-state replacement creates a continuing Montana tax claim; there is no state sales tax and no state real estate transfer tax; property tax operates on a classified system with centralized DOR administration; wildfire exposure dominates the mountain and interface zones; demographic growth has been strong in the Bozeman and Flathead corridors; agricultural productive-value assessment and Indian Country jurisdictional considerations apply in selected areas. None of these is a reason to avoid a Montana exchange. Each is a reason to underwrite one carefully. The jurisdiction-specific factors above are starting-point context. A state-experienced CRE professional will translate them into deal-specific judgment.

This page is the working map. The actual exchange is run by people. A Montana-licensed real estate attorney, a Montana-licensed CPA familiar with §1031 and the Montana claw-back mechanics, a Qualified Intermediary, and a CRE professional who knows this market and these properties. Shop 1031 is the analytics layer that triages which deals deserve your time. The professionals do the work.

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Shop 1031 is an independent analytics platform. We are not a brokerage, a law firm, a tax advisor, a lender, or a Qualified Intermediary. Every 1031 exchange should be reviewed by a state-licensed real estate attorney, a CPA familiar with IRC §1031, and a QI. Brokerage and advisory services, when used, are provided by independently licensed third parties under separate engagement. This page is research, not advice. The Montana-specific surfaces discussed (Montana claw-back on out-of-state replacement under Admin. Rule 42.2.308, wildfire-zone exposure and carrier non-renewal risk in wildland-urban-interface property, Bozeman and Flathead Valley pricing premium relative to statewide comp data, agricultural productive-value assessment, Indian Country jurisdictional considerations) each carry material risk if mishandled and should be addressed with a Montana-licensed attorney, a Montana-licensed CPA, and a Qualified Intermediary before identification, not after.

Federal authority: 26 U.S.C. §1031; 26 C.F.R. §1.1031(k)-1.

Montana authority: Mont. Code Title 15 (income and property tax); Mont. Admin. R. 42.2.308 (Section 1031 claw-back).

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