A 721 exchange and a 1031 exchange get lumped together in conversation, but they are not two flavors of the same transaction — they are two different sections of the tax code doing two different jobs. Section 1031 defers gain when an owner sells real property and acquires other like-kind real property, keeping the owner as a direct real estate owner throughout. Section 721 defers gain when a partner contributes property to a partnership in exchange for a partnership interest, which is a contribution transaction, not a sale-and-replacement transaction at all.
In practice, when people say '721 exchange,' they mean contributing real property — or, more commonly, a DST interest already held — to a REIT's operating partnership for operating partnership units, an UPREIT structure. That is legally a Section 721 contribution, and the tax mechanics, paperwork, and what the owner ends up holding are all different from a 1031 exchange.
The two are often connected in a two-step sequence: an owner first does a 1031 exchange into a DST interest, then later contributes that DST interest to an operating partnership under Section 721 — sometimes marketed as a '721 exchange' even though only the first step is actually a 1031 exchange.
Section 1031 requires a sale of relinquished property and a purchase of like-kind replacement property, structured through a qualified intermediary so the seller never has actual or constructive receipt of the proceeds. The outcome is continued direct or fractional ownership of real property.
Section 721 requires no sale at all in the traditional sense — only a contribution of property to a partnership for a partnership interest. No qualified intermediary is involved, there is no 45-day identification period, and there is no like-kind requirement, because the contributed asset and the OP units are not compared for like-kind purposes the way Section 1031 compares relinquished and replacement property.
Because the mechanics differ this much, an owner cannot treat a '721 exchange' as a drop-in substitute for a 1031 exchange when selling directly held property — a sale followed by a 721 contribution of proceeds does not defer gain the way an in-kind contribution can, and the details should be reviewed with a tax professional.
After a 1031 exchange, the investor holds real property — a deed, direct or fractional depending on the replacement structure, with rights tied to that specific asset. Selling that replacement property later is itself a taxable event unless it, too, is exchanged.
After a 721 contribution into an UPREIT, the investor holds operating partnership units, not real property. OP units generally track the REIT's overall portfolio rather than any single asset, and typically carry a right to convert into REIT shares (or cash, at the REIT's election) after a holding period — a conversion that is usually a taxable event. The investor has traded a self-selected property for diversified, professionally managed exposure they do not individually control.
This is a meaningful control tradeoff: a 1031 exchange keeps the investor in the driver's seat on one asset, while a 721 contribution moves the investor into a passive, diversified position with eventual liquidity options but no ability to select or manage the underlying properties.
Because a direct 1031 exchange requires acquiring real property and a 721 contribution requires contributing property to a partnership, sponsors have built a sequenced structure to bridge the two: an investor first completes a 1031 exchange into a Delaware Statutory Trust interest that qualifies as like-kind real property under Revenue Ruling 2004-86, satisfying the exchange's replacement-property requirement. Later — sometimes after a minimum hold set by the sponsor — that DST interest is contributed to the REIT's operating partnership under Section 721, converting the DST interest into OP units.
This sequence lets an investor defer gain through the 1031 exchange, then later trade the passive DST interest for diversified REIT exposure without a current tax event on that second step, assuming it qualifies as a proper 721 contribution. The second step is not guaranteed to be available — it depends on the DST sponsor having a pre-negotiated arrangement with a specific REIT, disclosed in the offering documents.
An investor considering this path should treat it as two separate transactions with two separate sets of diligence, and should rely only on the specific sponsor's approved offering and partnership documents to understand what is actually being offered.
Before contributing a DST interest or other property to an operating partnership, an investor should understand what specific REIT the OP units are tied to, what the partnership agreement says about redemption or conversion rights, and what fees or costs attach to the contribution itself. These terms live in the operating partnership agreement and the REIT's disclosure documents, not in general marketing material.
The investor should also confirm how and when OP units can be converted to REIT shares, since that conversion is typically the point at which liquidity becomes available, and typically a taxable event, unlike the original contribution.
Finally, an investor should ask what happens if the REIT underperforms, changes its distribution policy, or is acquired — OP unit value is tied to the sponsor's overall portfolio and management decisions, risks that did not exist when the investor held a specific piece of real property or a specific DST interest directly.
A straight 1031 exchange fits an investor who wants to remain a direct real estate owner, controlling financing, leasing, and disposition of a specific asset, and who is comfortable with the 45-day and 180-day deadlines that come with it. It keeps the door open to further exchanges, or to a step-up in basis for heirs, without introducing a securities-law wrapper.
A 721 contribution — usually reached through the DST bridge described above — fits an investor already comfortable with passive ownership who wants further diversification and eventual liquidity through OP-unit conversion, in exchange for giving up direct control entirely. It depends on the specific sponsor and REIT named in the offering documents, not on '721 exchanges' as a general category.
