Montana 1031 Exchanges and DSTs: Property Taxes, Water, and Income Review

By Jerry Baker

A Montana 1031 exchange can defer federal gain on qualifying investment real estate when the exchange follows the required steps and deadlines. This guide explains how to review Montana property taxes, water and sanitation records, seasonal income, and passive DST ownership. The goal is to judge the property and its costs before a tax deadline narrows your choices.

Decide what should change after the sale

A property sale can solve one problem and create another. You may be ready to stop managing a rental, but still need its income. You may want to leave a land investment, but dislike the idea of giving up control. Or you may want fewer assets in one local market.

I start with those concerns. How much cash do you need each month? What expenses might arrive in the next few years? Do you want to manage a property, hire a manager, or leave the daily decisions to an investment sponsor?

Write the answers before you compare listings. That way, a beautiful setting or a strong sales pitch has to pass the same test as every other option. A property can be appealing and still ask you to take on work or risk you no longer want.

For Montana, I also want to know whether the plan depends on a year-round tenant, visitors, farming, or a future change in use. Those are separate business plans. Each needs its own evidence and expense budget.

Know what the exchange can and cannot do

Section 1031 generally covers real property held for business or investment. It does not cover a home used only as your personal residence or property held mainly for sale. Qualifying replacement real estate can generally be elsewhere in the United States and can be a different property type. A successful exchange defers gain rather than erasing it. [1]

In a delayed exchange, identification is generally due within 45 calendar days after the sale. Receipt of replacement property is generally due within 180 days or the tax return due date, including extensions, if sooner. Set up the qualified intermediary before closing to avoid receiving the proceeds. Your adviser should check the ownership, identification, cash, and debt details. [2]

Keep the tax work and the investment review moving together. A property may qualify for an exchange yet make little sense for you. Likewise, a well-priced asset is not useful if its closing schedule cannot fit the exchange.

I would ask the CPA for a taxable-sale estimate as well. Knowing that alternative helps you weigh the real value of deferral instead of treating any replacement as better than paying tax.

Recheck Montana property classifications for 2026

Montana changed its property-tax structure for 2026. Department of Revenue guidance distinguishes qualifying primary homes and long-term rentals from other residential uses. Multifamily, commercial, agricultural, and forest property have their own treatment. A budget built on an older bill may miss the effect of the new classification and rate structure. [3]

The department's long-term-rental guidance describes rentals of at least 28 days for at least seven months of the year. Eligibility and required enrollment should be confirmed for the parcel and tax year. Do not assume a proposed rental qualifies simply because the seller calls it an investment property. [3]

Before buying, gather the assessment notice, classification, reduced-rate status, and recent tax bills. Ask how the planned ownership and use would be treated. If the plan changes from long-term tenants to vacation stays, have the tax estimate redone before relying on the new income model.

For a mixed property, identify the treatment of each part. A house, extra land, and commercial space do not become one tax category just because they share an owner or a sale contract.

A classification rate is not the final tax bill

Montana's basic calculation has two steps: market value is converted to taxable value using the applicable rate, then mill levies determine tax. The Department of Revenue sets market value, the Legislature sets tax rates, and local governments and voters set mill levies. The published classification rate alone is not the percentage of market value you will pay as your full bill. [4]

A simple hypothetical shows the difference. If taxable value were $10,000 and the applicable levy were 400 mills, the tax calculation would be $4,000. That uses $10,000 times 0.400. These are invented inputs, not a Montana parcel estimate, and separate charges could affect an actual bill.

I want a local estimate tied to the property, not a statewide shortcut. Ask which year the estimate covers and which assumptions remain unknown. Keep an allowance for change in the operating budget.

Then stress-test the result. If annual property taxes were $6,000 higher than projected, how much income would remain after debt service and reserves? That question is more useful than arguing over a small difference in advertised yield.

Check the new exempt-well process

Montana's DNRC says that, beginning January 1, 2026, users developing water use through a permit exception must file a Notice of Intent before using water from an exempt well. A later completion filing is still part of the process. “Exempt” describes an exception to the permit process; it does not mean there is no water-right paperwork. [5]

The agency also explains that multiple wells may form a combined appropriation. You cannot assume each lot in a phased project gets its own separate allowance. Its current records distinguish pending, authorized, denied, expired, and other notice statuses. DNRC says a right that already covers current uses is not displaced by the new notice rule alone. [5]

For a proposed project, I would have a qualified adviser match the actual use to the records. Save the written conclusion, not just a screenshot with a record number. If the business plan needs more water than the current use, identify who will obtain the approval and who pays if it fails.

A plan should also state what happens while approval is pending. Taxes, interest, and upkeep do not wait for the paperwork to catch up.

Read the sanitation approval and its conditions

A Montana Certificate of Subdivision Approval, often called a COSA, concerns sanitation. DEQ explains that it identifies approved use, water supply, wastewater disposal, and stormwater arrangements. The certificate and lot layout help show what was reviewed. They are not a broad promise that every building plan or future use will work. [6]

Montana law also addresses providing buyers with subdivision approval information and referring to conditions in later transfers. Certain excluded lots must be identified as not reviewed or approved under that law. Your attorney should read the recorded documents and explain the property's actual status. [7]

I would compare three things: what the approval says, what exists today, and what the buyer wants to do. A change in bedrooms, building location, or intensity of use may need more review. Ask the engineer and local health office which steps apply rather than guessing from the size of the lot.

This is a useful check for smaller rental or land investments. A parcel that looks roomy on a map may have limited space once water, wastewater, drainage, access, and other restrictions are shown together.

Build a monthly budget for seasonal income

If the investment depends on visitors or another seasonal customer base, an annual average can hide the difficult months. I want to see a monthly cash schedule with income, payroll or management, utilities, repairs, taxes, insurance, and debt payments.

For example, suppose a hypothetical property earns most of its net operating cash in four months. The rest of the year may still require full debt payments and basic maintenance. A strong annual total does not prove that enough cash will be available each month.

Review cancellations, discounts, cleaning charges, platform fees, and owner use where they apply. Ask whether quoted income is gross booking value, cash collected, or cash after operating costs. Those figures should never be swapped without a clear label.

I also want a weaker-year test. Reduce occupied nights or tenant revenue, keep fixed costs in place, and add a repair. Then see what reserve is needed. This is a planning exercise, not a claim that a particular Montana market will weaken.

When a plan can work only at the best occupancy and highest price in the forecast, I want to understand why the buyer is comfortable carrying that risk.

Do not use insurance as a maintenance budget

Montana's insurance regulator explains the difference between replacement cost and actual cash value, which reflects depreciation. It also warns that policy terms, covered causes of loss, and exclusions matter. Those distinctions should be reviewed in the actual policy offered for your rental or commercial use. Homeowner examples do not establish coverage for every investment building. [8]

I would request a roof assessment, major-system schedule, and insurance quote early. An older roof may need work even if no covered event occurs. A premium line in the budget does not pay for every worn-out component.

Separate three buckets: routine repairs, major replacements, and uninsured losses or deductibles. Assign a dollar reserve to each where practical. Ask the property manager how those reserves will be funded and who can spend them.

Suppose the first two years require $30,000 of planned work and the advertised cash figure ignores it. Spread the cost through the cash schedule before comparing this property with an alternative. You may still choose it, but you should know how much income must stay in the building.

Give flood exposure its own review

The Montana insurance regulator notes that most homeowners policies do not cover flood damage and directs owners to separate federal or private flood coverage. It also emphasizes that policy terms control. An investor should ask a commercial insurance professional about the actual property's coverage, limits, exclusions, and effective date. [9]

For a property near a river or with drainage concerns, I would request the applicable maps, available loss history, elevation information, and site observations. A low-risk label does not make a building physically immune to water. Nor does being required to buy a policy prove its limits are enough.

Ask what would happen if tenants could not occupy the property during repairs. Which costs would continue? Which, if any, income losses would the policy cover? How long could available reserves support the property?

It is easier to investigate these questions while comparing investments than after the exchange is complete. Keep flood and other hazard work tied to a specific address. A broad statement about Montana cannot answer a question about a building's drainage, construction, or insurance contract.

Make the local market case visible

Montana's Department of Labor and Industry provides employment, wage, county, and industry tools. These are useful starting points, with dates and geographic limits. A forecast is different from a count of current jobs, and a statewide trend does not establish the rent for one property. [10]

I want the business plan to identify its likely tenants or customers. What would make them choose this location? What would they pay elsewhere? How long would it take to replace them if they left?

For a small commercial building, compare tenant lease terms with realistic local alternatives. For housing, compare rents with nearby units that have similar condition and features. For land, ask who the future buyer is and what that buyer needs before making an offer.

Put signed leases, asking rents, and proposed developments in separate columns. Note when each item was checked. This makes it easier to see where the case rests on evidence and where it rests on a judgment.

I do not need every assumption to be certain. I do need the uncertain parts to be visible enough that you can decide whether the potential reward is worth them.

Compare a DST with keeping direct control

A Delaware Statutory Trust can let an investor hold a passive interest while a sponsor manages the real estate. Certain DST interests qualify for exchange treatment under the conditions addressed in IRS Revenue Ruling 2004-86. That treatment depends on the actual trust and terms, not its marketing label. [11]

The appeal may be less daily work. The tradeoff is less direct control. You should understand the sponsor's authority, the financing, the planned hold, the fees, and the limits on selling your interest.

For a direct property, you can ask a manager to get another insurance quote or change the leasing plan. In a passive structure, those decisions follow the governing documents. I want you to be comfortable with that arrangement before committing money.

Private placements may be hard to sell and can involve a loss of principal. Distribution targets and exit plans are not promises. Review the offering materials and your ability to hold through setbacks. [12]

To compare options fairly, start with cash after operating costs, financing, fees, and reserves. A property's gross rent is not comparable to a projected distribution. Nor is a lower workload the same thing as a lower investment risk.

Use a decision sheet before identification

A concise decision sheet can hold the work together. I would use one page for each serious candidate, backed by the full documents. Give each unanswered question an owner and a target date.

• Investor fit: needed income, cash reserves, desired role, and acceptable hold.
• Exchange fit: qualifying structure, cash and debt needs, identification, and expected closing.
• Property tax: 2026 classification, reduced-rate status where relevant, and a parcel-specific estimate.
• Approvals: water records, sanitation documents, land use, and remaining conditions.
• Operating case: evidence for rent, seasonal cash needs, repairs, insurance, and weaker-year results.
• Exit: likely buyers, sale costs, loan maturity, and a plan if the hold lasts longer.

Consider two hypothetical candidates. One has a higher projected return but still needs a key approval. The other has lower projected income but an operating history and fewer unresolved steps. Neither wins automatically. The question is which set of tradeoffs fits your finances and remaining time.

Keep notes on why you accepted the final choice. They will help you review actual results later. If the investment falls short, you can trace the difference to rent, costs, timing, or an assumption rather than relying on memory.

Frequently asked questions

Can I exchange Montana real estate for property in another state?

Generally, qualifying U.S. investment or business real estate can be exchanged across state lines. Have your CPA review both the federal requirements and state tax consequences for your circumstances. [1]

Does a Montana property-tax classification rate equal my final bill?

No. The classification rate helps determine taxable value. Mill levies are then used to calculate tax. Review the parcel's assessment, applicable levies, and any other charges. [4]

Do all Montana rental properties receive the same 2026 tax treatment?

No. The state's guidance distinguishes qualifying long-term rentals, other residential uses, and different property classes. Confirm eligibility, enrollment, and the intended use with the Department of Revenue. [3]

Does an exempt well mean I can skip a water-right review?

No. The 2026 notice process and other eligibility rules still matter. Ask DNRC or your water adviser to review the actual right, notice status, and planned use. [5]

What does a Certificate of Subdivision Approval tell me?

A COSA describes approved sanitation arrangements and related use or site conditions. Read it with the lot layout and other required approvals. It is not a general development guarantee. [6]

Is a Montana DST investment safer than direct ownership?

Not automatically. A sponsor may handle daily work, but property risk, debt, fees, illiquidity, and possible loss remain. Compare the specific terms with your needs and the direct-ownership alternatives. [12]

Educational information, not an offer or a personal tax, legal, or investment recommendation. Examples are hypothetical and omit stated adjustments. Tax treatment depends on your facts and current law. Review your transaction with your CPA, attorney, and qualified intermediary. Real estate investments can lose value and may be illiquid.