A 721 exchange is the quiet exit at the end of many real-estate journeys. You contribute a property, or more often a Delaware Statutory Trust interest, into a REIT's operating partnership and receive operating partnership units in return. The contribution is tax-deferred under Section 721 of the tax code, the same way a 1031 defers gain when you trade one building for another. What changes is everything about what you own afterward. You stop owning a specific building and start owning a slice of a whole portfolio run by someone else. That trade buys diversification, professional management, and a real path to liquidity, but it closes a door behind you that does not reopen.
Key Takeaways
- A 721 exchange contributes property, often a DST interest at the end of its hold, into a REIT's operating partnership in exchange for OP units, tax-deferred under Section 721.
- You give up direct control of a single building. The REIT's manager decides what to buy, sell, refinance, and distribute across the entire portfolio.
- You gain diversification across many assets, distributions comparable to REIT shares, professional management, and an interest that divides cleanly among heirs.
- OP units are generally convertible into REIT shares, which can then be sold in pieces. That conversion is a taxable event, and selling shares ends the deferral.
- The move is a one-way door. Once you hold OP units you can no longer 1031 the position back into direct real estate.
- A step-up in basis at death can erase the deferred gain for heirs, which is why estate planning drives many 721 decisions.
What a 721 UPREIT exchange actually is
UPREIT stands for umbrella partnership real estate investment trust. The structure sounds complicated, but the idea is simple. Most REITs do not hold real estate directly. They own a controlling stake in an operating partnership, and that partnership holds the buildings. The operating partnership is the umbrella. A 721 exchange lets an outside owner contribute property into that operating partnership and take partnership units instead of cash. Because Section 721 of the tax code treats a contribution of property to a partnership in exchange for a partnership interest as a non-recognition event, no capital gains tax comes due at the moment of the contribution.
In practice, individuals rarely contribute a building they own outright. The far more common path runs through a DST. An investor does a 1031 into a DST first, holds it through the sponsor's business plan, and then the sponsor offers a 721 contribution of the DST's real estate into an affiliated REIT's operating partnership when the trust reaches the end of its life. The investor receives OP units sized to the value of their DST interest. The deferred gain rides along the whole way, from the original property to the DST to the OP units. Our full guide to 721 exchanges walks the structure end to end.
The unit you receive is a partnership interest, not a share of stock and not a deed to a building. It entitles you to a share of the operating partnership's cash flow and value, pro rata with everyone else who holds units, including the REIT itself. That single fact, that you now own a fractional piece of a pooled vehicle rather than a discrete asset, is the root of everything that follows: the control you surrender, the diversification you gain, and the liquidity that eventually becomes available.
The control you give up
When you own a building, you make the decisions. You set the rents, choose the property manager, decide when to refinance, and decide when to sell. After a 721 exchange, all of that is gone. You no longer own a specific property. You own units in a partnership whose manager, the REIT's sponsor, runs an entire portfolio according to its own strategy. They decide which assets to buy, which to sell, when to take on debt, how much to distribute, and when to hold cash back for reserves or acquisitions.
This is a genuine loss of control, and it deserves to be stated plainly rather than buried under the upside. A hands-on owner who enjoys managing buildings, or who believes they can outperform a professional manager, is giving up the thing they are good at. There is no calling the sponsor to ask them to sell the office tower you never liked or to push harder on rents in one submarket. Your input ends at the moment you accept the units. You become a passive holder, dependent on the manager's skill and judgment for the income and the value of your position.
For many investors, that is the entire appeal. The tired landlord who has spent thirty years fielding tenant calls is often happy to hand the keys to a professional team and never think about a roof or a vacancy again. But it is a real trade. You are exchanging direct control of one asset for a passive stake in a portfolio you do not steer. Going in clear-eyed about that is the difference between a good outcome and a disappointed one.
What you gain in return
The other side of the trade is substantial. The first benefit is diversification. A single building concentrates your capital, your income, and your risk in one asset, one tenant base, one local market. OP units spread that same capital across the REIT's whole portfolio, which may hold dozens or hundreds of properties across multiple regions and property types. One bad tenant or one soft submarket no longer threatens your entire position.
The second benefit is income without management. The operating partnership distributes cash flow to unit holders, and those distributions are generally comparable to what the REIT pays its shareholders, since OP units and REIT shares sit on roughly equal economic footing. You collect that income passively, with no leasing, no maintenance, and no late-night calls. Professional management runs the portfolio, and you receive your share.
The third benefit is one estate planners care about most: an OP unit position is far easier to divide than a building. A single property left to four children forces them to agree on whether to hold, sell, refinance, or manage it, and disagreements among heirs sink plenty of family real estate. Units split cleanly. Each heir can receive a defined number of units and make their own choice about what to do with them. That divisibility, combined with diversification and passive income, is why a 721 contribution often makes sense as the last move in a long real-estate career.
The liquidity path
Direct real estate is illiquid. You cannot sell a third of a building to fund a medical bill or a grandchild's tuition. OP units open a path out that a single property never offered, though the path runs through a taxable step. OP units are generally convertible into REIT shares, often on a one-for-one or formula basis, after an initial holding period set by the partnership agreement. Once converted, you hold REIT shares, and shares can be sold in pieces over time rather than all at once.
That ability to sell in increments is the practical heart of the liquidity benefit. An investor who needs $50,000 can convert and sell just enough shares to raise it, pay tax only on that slice, and leave the rest of the position deferred and intact. A building does not offer that. With direct real estate, you sell the whole thing or you sell nothing. The unit-to-share path lets you turn a chunk of net worth into a faucet you can open a little at a time.
If the destination is a public REIT, those shares trade on an exchange and sell at the market price on any given day. If the destination is a non-traded REIT, liquidity instead runs through the sponsor's redemption program, and that is where the caveats live. Redemption programs typically cap how much can be redeemed each quarter, may price redemptions at a discount to net asset value, and can be gated or suspended entirely when too many holders want out at once, which tends to happen exactly when markets are stressed. The liquidity is real but conditional. Read the redemption terms before you assume you can get your money on demand, because for a non-traded REIT you often cannot.
The one-way door
Here is the part that gets glossed over in sales conversations. A 721 exchange is a one-way door. Once you contribute into the operating partnership and hold OP units, you can no longer 1031 the position back out into direct real estate. Section 1031 applies to exchanges of real property held for investment. A partnership interest is not real property for these purposes, so the OP units do not qualify. The chain of 1031 exchanges that may have carried your gain forward for decades ends the moment you accept units.
The deferral itself does not end at the 721 contribution, to be clear. It continues to ride inside the OP units. But your options for keeping it deferred narrow to two: hold the units, or hold the shares you convert them into. The moment you convert units to shares, you trigger a taxable event on the built-in gain. The moment you sell shares, you owe tax like any stock sale. There is no swapping back into a building to reset the deferral clock. The 721 is the last exchange in the sequence, not a way station you can leave the way you arrived.
This is why the decision deserves real weight. A 1031 into a DST is reversible in spirit: when the DST sells, you can 1031 again into another DST or a building and keep going. A 721 is not. The detailed tradeoffs are laid out in our piece on the downsides of a 721 exchange, and they are worth reading before you commit. Once you walk through the door, the only ways forward are to hold or to sell and pay.
The typical two-step path
Almost no one wakes up and does a 721 exchange in isolation. The common route is a two-step exchange that begins with a 1031 and ends with a 721. Step one: an investor sells a building and does a 1031 exchange into a DST, deferring the gain and moving into a passive, professionally managed position. Step two, often years later: when the DST reaches the end of its hold and the sponsor sells or repositions the underlying real estate, the sponsor offers a 721 contribution of that property into an affiliated REIT's operating partnership. The investor takes OP units and continues the deferral.
The timing of step two is set by the DST's life cycle, not by the investor. A DST is a finite vehicle. At the end of its business plan, the trust must do something with the property, and a 721 rollup into an affiliated REIT is one of the exits a sponsor may build in from the start. When that happens is laid out in the offering documents, and our explainer on the DST full cycle covers how these holds wind down. The 721 is the capstone, available only when the DST completes its cycle and only if the sponsor structured an UPREIT exit into the deal.
This sequencing matters for expectations. An investor entering a DST that is built for a 721 exit should understand they are signing up for an eventual one-way move into a REIT, not an indefinite series of DST-to-DST exchanges. Some DSTs are designed to roll into the sponsor's REIT; others are designed to sell and return capital for another 1031. Knowing which kind you are buying, before you buy it, prevents an unwelcome surprise at the end of the hold.
The estate-planning angle
For many investors, the 721 exists to serve an estate plan, and the math is powerful. Under current law, when an investor dies holding appreciated property, that property generally receives a step-up in basis to its fair market value as of the date of death. The deferred gain that rode along through every 1031, into the DST, and into the OP units, can be wiped out for the heirs. They inherit at the stepped-up basis and can sell with little or no capital gains tax on the prior appreciation.
Pair that with the divisibility of units and the appeal sharpens. An aging investor can hold OP units, collect passive income for life, and leave a position that splits cleanly among heirs, each of whom inherits with a fresh basis. There is no building to fight over and no decades of deferred gain waiting to detonate on the next sale. The combination of lifetime income, easy division, and the step-up is exactly why the 721 is so often the final move. Our piece on 721 exchanges and estate planning works through the mechanics in more detail.
None of this is a guarantee. The step-up in basis depends on the estate-tax rules in effect at death, and those rules can change. Estate planning of this kind is fact-specific and belongs with a qualified attorney and CPA, not a brochure. But the structural fit between a passive, divisible, deferred position and a step-up at death is real, and it is the single most common reason investors accept the one-way nature of the 721 with their eyes open.
The tax mechanics, plainly
Three tax facts govern the life of an OP unit position, and understanding them prevents the most common surprises. First, OP units are a partnership interest, so each year you receive a Schedule K-1, not the 1099-DIV a REIT shareholder gets. The K-1 reports your share of the partnership's income, deductions, and other items, and it can arrive late in tax season, which is worth telling your CPA in advance. Holding a partnership interest is a different reporting experience from holding a stock.
Second, converting OP units into REIT shares is a taxable event. The conversion is treated as a disposition of the partnership interest, which recognizes the built-in gain that has been deferred all along. This is the point where the long chain of deferral finally meets a tax bill, at least on the portion you convert. Many investors convert in increments precisely to control when and how much of that gain they recognize.
Third, once you hold REIT shares, selling them is taxable like any stock sale. You owe capital gains tax on the difference between your basis and the sale price, at long-term or short-term rates depending on your holding period. The comparison between holding direct real estate and moving to units is laid out in our piece on 721 versus 1031. The headline is simple: the 721 defers, conversion and sale recognize, and a step-up at death can erase. Where you stop on that path determines what you ever pay.
How to evaluate the destination REIT
When you accept OP units, the REIT's portfolio becomes your portfolio, its debt becomes your debt, and its distribution policy becomes your income. So the destination deserves the same scrutiny you would give any large investment, because in effect that is what it is. Four things matter most.
| What you keep with direct real estate (1031/DST) | What changes when you move to OP units (721) |
|---|---|
| You control one specific building's decisions | The REIT's manager controls a whole portfolio; you are passive |
| Concentrated in one asset, tenant base, and market | Diversified across many properties, regions, and property types |
| Illiquid; you sell the whole asset or none of it | Path to liquidity by converting units to shares and selling in pieces |
| Can keep 1031-ing into new real estate indefinitely | One-way door; cannot 1031 the OP-unit position back out |
| Annual reporting via your own returns | Annual K-1 from the partnership; 1099 once you hold shares |
Illustrative comparison of a direct-real-estate position versus an OP-unit position. General, not specific to any offering.
Look first at the portfolio: what does the REIT actually own, how is it spread across property types and geographies, and is it the kind of real estate you want exposure to. Look at leverage: how much debt sits across the portfolio, since heavy debt amplifies both returns and risk, and that debt is now indirectly yours. Look at the distribution history: has the REIT paid steady distributions through different markets, or has it cut when conditions turned. And look hardest at the redemption terms, because for a non-traded REIT those terms define your only realistic path to liquidity. Read the offering documents and our overview of how these REITs work before you sign. These features become yours the moment you accept units, so evaluate them as if you were buying the whole REIT, because in proportion you are.
Who it fits, and who it doesn't
The 721 fits a specific investor well. It suits an older owner who is done managing property, wants passive income, values diversification over a concentrated bet, and is planning around a step-up in basis at death. For that person, the one-way nature of the door is not a drawback; it is the destination. They are not looking to keep trading buildings. They want to settle into a passive, divisible, deferred position and leave it cleanly to heirs. The 721 is built for exactly that exit.
It fits poorly for others. An investor who still wants to control real estate, who believes they can outperform a sponsor's portfolio, or who may want the flexibility to 1031 again into a different building should think hard before walking through a door that does not reopen. So should anyone who needs real liquidity on demand, since a non-traded REIT's redemption program can gate or suspend exactly when it is needed. And anyone whose plan depends on the step-up should confirm with a qualified attorney that current law supports it, since the estate-tax rules can change.
The honest summary is that a 721 exchange trades control for liquidity, diversification, and an estate-planning fit, at the cost of a move you cannot undo. For the right investor, near the end of a long real-estate run, that is an excellent trade. For an investor who still wants to own and steer buildings, it is the wrong tool. The structure is neither a trap nor a magic bullet. It is a precise instrument for a specific job, and the work is in deciding honestly whether that job is yours. These offerings are sold only to accredited investors through a private placement memorandum, and the decision belongs with your own CPA and attorney, not a sales pitch.
Sources & References
This article is published by Baker 1031 for general informational and educational purposes only. It is not investment, legal, or tax advice, and is not an offer to sell or a solicitation to buy any security. The rules governing 1031 exchanges, 721 contributions, and REIT structures are detailed and fact-specific; consult your own CPA, attorney, and qualified intermediary before acting.
Every figure and example here is general and illustrative, not a projection or a representation about any specific transaction. DSTs, REITs, and other private placements are speculative, illiquid securities sold only to verified accredited investors through a private placement memorandum and involve substantial risk including loss of principal. Past performance does not guarantee future results, and no tax outcome, including 1031 deferral, 721 deferral, or a step-up in basis, is guaranteed.