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The 721 Exchange One-Way Door: Why OP Units Lose 1031 Eligibility

By Jerry Baker

In a typical 721 deal, you give up your property for operating partnership units. Those units do not qualify for an ordinary 1031 exchange. That is the “one-way door”: you can still own other real estate, but you should not expect to swap these units back into a building through Section 1031.

The important change is what you own

Before the transaction, you may own an apartment building, a warehouse, or another property. After a typical UPREIT deal, the operating partnership owns that asset. You own units in it.

The building may still be standing in the same place with the same tenants. Your investment can still depend on real estate. Neither fact makes your units the same tax asset as your former property.

I would want this point settled before comparing projected income. A tax benefit at entry does not tell us which choices remain at exit. The decision should include the investment you are receiving and the options you are giving up.

The phrase “one-way door” is useful only if it stays precise. It describes the loss of a simple 1031 route for ordinary OP units. You can still buy real estate. Also, not every possible deal has the same tax result.

Why ordinary OP units do not qualify for Section 1031

Section 1031 generally applies to qualifying business or investment real property exchanged for like-kind real property. It does not treat every investment tied to real estate as real property. [5]

The current Treasury rule excludes ordinary stock, other securities, and partnership interests. They are not real property for this purpose. There is a narrow exception. It covers an interest in a partnership with a valid Section 761(a) election out of all of subchapter K. That is not an election a typical UPREIT investor can simply make for their units. [1]

Do not use an old version of the statute as the whole explanation. Start with the current real-property rule and its regulations. The practical outcome for ordinary OP units remains the same: a unit sale or swap does not become a 1031 exchange because the partnership holds buildings.

If a proposal relies on an unusual exception, ask your attorney to identify the exact authority and facts. A label such as “real estate backed” does not answer the question.

Section 721 solves a different problem

The general Section 721 rule covers giving property to a partnership for an interest in it. It can defer gain at that step. Exceptions and other rules apply. It does not promise a later Section 1031 exchange of the interest. [2]

Think of the two provisions as different routes with different requirements. A valid 1031 exchange leaves you with qualifying real property. A typical UPREIT contribution leaves you with a partnership interest.

Section 721 also is not a tax eraser. Basis generally carries through under partnership rules, with adjustments for items such as recognized gain and liabilities. Value and basis can differ long after closing. [3]

That distinction should appear in the plan. “No current gain at contribution” and “no tax whenever I leave” are not the same promise.

Compare the three ownership stages

What you holdPossible tax routeKey limit
Qualifying business or investment real propertyA properly structured Section 1031 exchange may be availableProperty, use, timing, receipt, and other exchange requirements still apply
Ordinary operating partnership unitsPartnership rules govern contribution, income, distributions, and dispositionsThe units are not ordinary 1031 replacement or relinquished real property
Ordinary REIT sharesStock ownership and disposition rules applyShares do not become 1031 property because the REIT owns real estate

This table concerns tax character, not investment quality. A unit or share can be a useful investment without being eligible for a 1031 exchange. A property can qualify for an exchange and still be a poor fit for your needs. [1] [2]

Keep those evaluations separate. Otherwise a tax label can start doing work that belongs to a property review, a cash-flow review, or a discussion of your goals.

Why a qualifying DST interest is different

A qualifying Delaware statutory trust can receive different federal tax treatment. Revenue Ruling 2004-86 describes a trust whose owners are treated as owning their shares of the underlying real property. Under the stated facts, a qualifying exchange for that interest can fall within Section 1031. [4]

That result depends on the trust's structure and powers. It does not apply to every entity named a DST, nor does it make partnership units equivalent to DST interests.

So ask what you hold at each stage of a proposed DST-to-721 plan. During a qualifying DST stage, federal tax treatment can look through to the property. After a contribution for ordinary OP units, the interest has changed. Keeping the same sponsor does not preserve the old tax character.

A securities-law classification also does not settle this tax question by itself. The trust's treatment under the ruling, the partnership's treatment, and the offering's securities obligations each need the correct analysis.

Read a future 721 provision before buying the DST

A potential later contribution should not be treated as a minor exit detail. Ask whether it is your option, the sponsor's option, a contractual obligation under stated conditions, or only a possibility.

Then ask what happens if you prefer a different outcome. Can you remain invested on the same terms? Is there a cash alternative, and what taxes and timing would it involve? Could a vote bind you? Do you receive enough information about the receiving partnership before a decision is required?

Look for the answer in the documents. A slide that calls the step “optional” is incomplete unless it says who holds the option.

Also review the plan if no contribution occurs. The property should make sense as an investment under the terms you are accepting today. A hoped-for future conversion is not a substitute for a workable business plan or a reliable exit.

Holding units does not freeze every tax consequence

You may delay a taxable exit by keeping the units. But the partnership can still earn income and take other actions. Partners can have taxable allocations, and distributions affect basis under applicable rules. [3]

If the partnership sells the asset you gave it, built-in gain can be taxed to you. Changes in your share of debt can also matter. A drop in that share can count as a money distribution. It may create gain if the relevant basis is too low. [3]

Ask what limits, if any, protect you from those events. If a tax protection agreement is offered, review its scope, conditions, remedies, and duration. It is a contract with specific duties. It does not bind the IRS.

Your ongoing plan should cover tax reporting and cash needs as well as distributions. The phrase “I am still holding” is not a complete tax calculation.

What if you redeem units or receive REIT shares?

First confirm whether the action is permitted. The agreement may set a holding period and notice rules. It may let the issuer choose cash or shares. Do not assume every investor controls the form or timing of an exit.

Then ask your tax adviser how that exact transaction is treated. A taxable swap of units for stock can create gain. That can happen without cash reaching your bank account. A partnership redemption can raise distribution rules. The tax review must follow the legal steps.

For a sale of a partnership interest, the IRS generally measures gain or loss against adjusted basis and includes relief of partnership liabilities in the amount realized. Some components can be ordinary income rather than capital gain. [3]

Receiving ordinary REIT shares does not restore Section 1031 treatment. Those shares remain stock for this purpose. Selling the shares and buying a building is not a 1031 exchange. Using the proceeds quickly does not change that. [1]

You can buy property again after a taxable exit

The rule limits the tax route, not your ability to become a landlord again. You may be able to sell or redeem the units under their terms. You can pay the tax due and use the cash left to buy property.

Consider a simple hypothetical sale of units for $900,000. Assume no liability relief or transaction costs and an adjusted basis of $350,000. The gain before character and other adjustments would be $550,000. Buying a $900,000 property with the proceeds would not by itself defer that unit-sale gain. [3]

Actual cash available could be lower after taxes and costs. With partnership liabilities, the amount realized may also exceed the cash received. Have the accountant show both the cash budget and the taxable result.

A later 1031 exchange of the new property needs its own review. Owning OP units does not create a lifetime ban on exchanges of other qualifying real estate.

Can the operating partnership do its own 1031 exchange?

A partnership that owns qualifying real property may itself pursue a qualifying exchange. That transaction concerns the partnership's property. It is different from a partner trying to exchange their units. [5]

You generally do not direct that entity-level decision just because you hold units. Review management powers, voting rights, conflicts, and any relevant tax protection terms. If the plan needs the manager's help, confirm it. A claim that exchanges are possible is not enough.

Also ask who owns each asset within the structure. A REIT, operating partnership, and property subsidiary can be separate entities with different tax roles. The name on a brochure may not be the tax owner doing the deal.

For your personal plan, do not count an entity-level exchange as a way to take out your individual capital tax-deferred. It can affect the portfolio without giving you a personal exit.

Could the partnership distribute a building to you?

Partnership tax law includes rules for property distributions. Some distributions may avoid immediate gain, while others can trigger it. It is too broad to say every real estate distribution must create current tax. [3]

It would be just as misleading to promise that this gives an ordinary UPREIT investor a simple undo button. Your agreement may not give you a right to demand a building. The manager, other owners, or lenders may not agree. Title or cost issues may also block the plan.

The tax rules also reach beyond the usual cash-versus-basis test. Distributing contributed property to another partner within seven years can recognize built-in gain. A partner who contributed appreciated property and later receives other property can face separate precontribution-gain rules. Debt changes and other rules may apply too. [3]

Even a valid distribution would be a separate transaction, not a 1031 exchange of OP units. If someone proposes this approach, get a legal and tax review of the exact plan. Do not base the original contribution on an exit the documents do not provide.

You do not have to make one decision for every asset

An owner of several separate properties can evaluate each one. You may want to retain one building, consider a qualifying 1031 exchange for another, and explore a partnership contribution for a third.

The retained real property keeps its own tax history and must meet the exchange rules if sold through a later exchange. It does not lose eligibility merely because you also own units. Nor does keeping that property make the OP units eligible. [1] [5]

Partial interests in one property can be harder to arrange than separate whole properties. A buyer may not accept a split. Dividing an entity among its owners can also create tax costs. Check ownership, lender consent, title, and the transaction steps first.

A mixed cash-and-units transaction needs its own review as well. Cash can create a sale component. The goal is a deliberate allocation across choices, not calling every part of a deal tax-deferred.

Why accept the tradeoff at all?

Some owners want to stop handling tenants, repairs, and direct property decisions. Others want a broader set of assets. Some want an interest that is easier to divide among family members.

A REIT can give you a stake in a real estate portfolio. You do not have to buy each building yourself. But its assets, financing, fees, and management still require review. The SEC also distinguishes listed from non-traded REITs and warns about the liquidity limits of non-traded investments. [6]

The benefit should be specific. How many assets and tenants are actually represented? Does one sector dominate? Who decides on debt and acquisitions? What costs stand between property income and your distribution?

I would compare those answers with the work and risk of keeping direct property. Less management work can be valuable. It does not require us to pretend that the replacement investment has no risk or that every form of control is a burden.

When future 1031 flexibility may matter more

Perhaps you want to buy a property near family in a few years. Perhaps you still enjoy choosing assets and directing improvements. Perhaps a child wants to join the real estate business. Those goals may make continued ownership of qualifying property useful.

Do not dismiss that option just because today's focus is income. Ask what you might reasonably want to do next, and whether that action requires a direct property interest rather than OP units.

At the same time, keeping a future exchange option does not guarantee a successful exchange. You still face property availability, pricing, financing, and the rules in effect when you act. A preserved option is a possibility, not a promised outcome.

The comparison should be honest on both sides. Neither “you can always exchange again” nor “you will never want real estate again” is a sound substitute for discussing the future.

Estate planning does not restore 1031 status

Inherited property generally gets a basis tied to fair market value at death. Other valuation rules and exceptions may apply. That can be helpful, but the basis can decrease as well as increase. [7]

With a partnership interest, distinguish the heir's basis in the interest from the partnership's basis in its assets. A Section 754 election and related Section 743(b) adjustment can matter to the heir's share of underlying tax items. Have the estate adviser and tax team check both levels. Do not assume every deferred tax disappears. [8]

Even a basis adjustment does not turn inherited OP units into real property for a 1031 exchange. Transfer restrictions and liquidity terms also need review. The heirs may receive an investment they must keep holding.

Ask whether that result fits their needs. An estate plan should address who receives the units, who can manage the paperwork, and where cash for expenses will come from.

Build a decision page before committing

Put the current property and the proposed units side by side. List what you own now, what you would receive, which decisions you retain, and which exits each structure actually permits.

Then ask your CPA to model staying, selling, a qualifying 1031 exchange, and the proposed contribution. Use the same starting basis, debt, costs, and personal tax facts. Separate current taxes from later potential taxes, and separate projected returns from contractual rights.

If a 1031 route remains under consideration, prepare it before the property sale. The IRS explains that receiving the sale proceeds and then purchasing replacement property can create a taxable sale rather than a deferred exchange. A later change of mind does not repair that sequence. [9]

Finally, write down which future option you would most regret losing. That is a useful way to test the choice before a tax-deferral headline takes over the conversation.

Write down who controls the next move

Consider two hypothetical owners. One wants to leave rental management and has enough accessible cash outside the property. The other expects to buy a specific warehouse for a family business in three years. Both may dislike maintenance calls. Their next steps are still quite different.

For the first owner, the questions may center on the portfolio, fees, distributions, and long-term holding risks. For the second, an uncertain unit exit could interfere with a planned purchase. Tax deferral at entry does not solve that mismatch.

Make a short list of future actions: taking cash, changing managers, buying a building, reducing debt, or passing assets to heirs. For each action, identify who must agree. Is it your choice, a manager's choice, or an event no one can promise?

Include the cost of a change of mind. That might be tax, a sale discount, fees, delay, or lost control over timing. A projection that assumes every future request is granted leaves out an important part of the decision.

This is why I would review the exit before signing the entry papers. You are choosing both an investment and a set of rules for living with it. The right choice depends on whether those rules fit the life you want the investment to support.

Frequently asked questions about losing 1031 eligibility

Can I exchange ordinary OP units for a DST under Section 1031?

No. A qualifying DST interest does not cure the ineligible asset you are giving up. Ordinary OP units are partnership interests, not qualifying relinquished real property. Both sides and all other requirements of an exchange must work. [1] [4]

Do REIT shares qualify after I convert my units?

No. Ordinary REIT shares remain stock rather than Section 1031 real property. The unit transaction may also create tax. Review it before acting; a one-for-one share ratio is not a tax exemption. [1] [3]

Does a 721 contribution stop me from doing any future 1031 exchange?

No. It changes the investment you contributed. Other qualifying property you own, or later acquire and hold for a qualifying purpose, must be evaluated on its own facts. It does not make the OP units eligible. [5]

Can the partnership give me back my building tax-free?

Do not assume you have that right. Partnership distribution rules can permit nonrecognition in some cases and impose gain in others. Contract terms and the facts matter. A distribution is a separate transaction, not a routine reversal through Section 1031. [3]

Will holding units until death erase every tax?

Do not assume so. Inherited basis rules, exceptions, partnership asset basis, elections, and later events all matter. An adjusted basis also does not change units into Section 1031 property or guarantee cash for heirs. [7] [8]

Can I contribute one property and keep another?

You can evaluate separate properties separately, subject to ownership, contract, lender, and tax requirements. Retained property may preserve a future exchange option if it qualifies. Splitting one property or changing entity ownership requires more review.

Is a 721 exchange always worse because of this limit?

No. The limit may be acceptable when the units fit your long-term goals. The important step is to compare control, income, risk, liquidity, fees, taxes, and future choices before the contribution. A possible benefit should not hide an important tradeoff.

Sources and references

  1. Office of the Federal Register / Treasury Department. 26 CFR 1.1031(a)-3: Definition of real property. Current regulation; Title 26 displayed current through October 2, 2026.Relevant sections: Land, unsevered natural products, distinct assets, intangible rights, exclusions, and marina example. Accessed October 6, 2026.
  2. Office of the Federal Register / Treasury Department. 26 CFR § 1.721-1, Nonrecognition of gain or loss on contribution. eCFR displayed Title 26 current through October 2, 2026.Relevant sections: Paragraph (a): contribution rule, substance of transaction, sales, and liability cross-reference. Accessed October 6, 2026.
  3. Internal Revenue Service. Publication 541 (December 2025), Partnerships. December 2025 edition, current publication checked October 6, 2026.Relevant sections: Contribution of property; disguised sales; investment-company exception; basis; liabilities; built-in gain; partnership-interest transfers. Accessed October 6, 2026.
  4. Internal Revenue Service. Revenue Ruling 2004-86. 2004 ruling; applies to the described structure and facts, not blanket approval.Relevant sections: Facts, analysis, and holdings on a Delaware statutory trust and Section 1031. Accessed October 6, 2026.
  5. Internal Revenue Service. Like-kind exchanges — Real estate tax tips. Current IRS web guidance.Relevant sections: Real-property scope; business and investment use; property held primarily for sale. Accessed October 6, 2026.
  6. U.S. Securities and Exchange Commission, Investor.gov. Real Estate Investment Trusts (REITs). Current SEC investor education page; used for general principles, not offering-specific terms.Relevant sections: Types; liquidity; distributions; conflicts; reviewing public filings. Accessed October 6, 2026.
  7. Internal Revenue Service. Publication 551, Basis of Assets. December 2025 revision.Relevant sections: Inherited Property; valuation alternatives and exceptions. Accessed October 6, 2026.
  8. U.S. Treasury Department / eCFR. 26 CFR 1.743-1 — Adjustment to basis of partnership property. Current regulation retrieved October 6, 2026; Title 26 displayed current through October 5, 2026..Relevant sections: Paragraphs (a)–(d): partnership asset basis, transferee outside basis, and partner-specific adjustments after a sale or death. Read with the applicable Section 754 election and mandatory-adjustment rules.. Accessed October 6, 2026.
  9. Internal Revenue Service. Publication 544 (2025), Sales and Other Dispositions of Assets. 2025 edition, current publication reviewed October 6, 2026.Relevant sections: Like-Kind Exchanges; Deferred Exchange; Partially Nontaxable Exchanges; Basis of property received; Partnership Interests. Accessed October 6, 2026.

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.

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