A 1031 exchange under Section 1031 trades real property for other like-kind real property, keeping the owner in direct or beneficial ownership of physical real estate. A 721 exchange under Section 721 contributes property, often after first passing through a Delaware statutory trust holding period, into an operating partnership's UPREIT structure in exchange for partnership units, which is a fundamentally different asset than real property itself.
These are frequently confused because a 721 exchange is often reached at the end of a 1031 exchange chain, but they are governed by different code sections with different tax treatment, and an owner should understand exactly what they are converting into before committing.
Contributing appreciated real property to an operating partnership in exchange for units is generally not a taxable event under Section 721, similar in spirit to how Section 1031 defers gain on a real property trade. The owner ends up holding partnership units in a REIT's operating partnership rather than a deed to real property.
This is typically structured as the final step after a 1031 exchange into a Delaware statutory trust, once the DST's holding period requirements are satisfied, converting what began as directly exchanged real estate into a much more liquid, though still not immediately cash-convertible, partnership interest, subject entirely to that program's own terms.
Once the 721 exchange completes, the owner no longer holds real property or a beneficial trust interest in specific real estate; they hold units in a diversified operating partnership, typically part of a larger REIT platform, with no direct claim on any particular building. This is a further step away from direct control than even a DST interest represents.
An owner who values holding a specific, identifiable property should recognize that a 721 exchange gives that up entirely in exchange for a diversified interest in the partnership's broader portfolio, which may include hundreds of properties the original owner never selected, spread across markets the owner had no role in choosing.
Partnership units received in a 721 exchange are often more liquid than a DST interest or a directly owned property, sometimes convertible to REIT shares or redeemable under program-specific terms, though this depends entirely on the specific partnership and is never guaranteed or immediate.
The diversification is also broader: rather than exposure to one property or one DST offering, the owner's interest is tied to the operating partnership's entire portfolio, spreading risk across many assets, tenants, and markets simultaneously.
These features come from giving up the ability to select or exchange into a specific replacement property again, since a 721 exchange is generally a one-way conversion rather than a repeatable step in a chain.
Gain remains deferred at the point of the 721 exchange, similar to a 1031 exchange, but once the owner later sells or redeems partnership units, the tax treatment follows partnership taxation rules rather than the like-kind exchange rules that applied to the original real property. A subsequent 1031 exchange is generally no longer available once the interest has become partnership units rather than real property.
This makes a 721 exchange a terminal step in the like-kind exchange chain for most owners, converting continued deferral flexibility into a different, less flexible form of tax deferral tied to the partnership structure.
Owners far along a real estate investment career, who have already exchanged repeatedly and want to finally step fully away from any real estate operating decisions, sometimes accept a 721 exchange's one-way conversion in exchange for a diversified, professionally managed interest they no longer need to think about property by property.
Owners who still want the option to exchange into a specific property later, or who are not ready to give up the flexibility of Section 1031's repeatable deferral, generally hold off on a 721 exchange and continue with direct or DST-based 1031 exchanges instead. This is a decision worth revisiting only after direct experience with a DST or two, not as a first move.
