A 721 exchange is a tax-deferred contribution of real estate to a REIT’s operating partnership under Section 721 of the Internal Revenue Code. In return, the contributor receives operating partnership (OP) units — an interest economically similar to REIT shares — without recognizing gain at the time of the contribution.
How a 721 exchange works
Section 721 provides that no gain or loss is recognized when property is contributed to a partnership in exchange for a partnership interest. In the real estate context, the partnership is the operating partnership of an UPREIT — the umbrella structure through which most large REITs hold their assets. A property owner deeds real estate to the OP and receives OP units whose value tracks the REIT’s shares and which typically pay matching distributions.
Unlike a 1031 exchange, there are no 45-day or 180-day deadlines and no qualified intermediary — a direct 721 contribution is a negotiated transaction between the property owner and the REIT. OP units usually carry a conversion right: after a holding period, they can be exchanged for REIT common shares (or cash, at the REIT’s option). That conversion is a taxable event, which gives the holder control over the timing of recognition — convert a portion in a chosen year, hold the rest.
The two-step: 1031 into a DST, then 721 into the REIT
Direct 721 deals are generally available only to owners of institutional-quality property that a REIT actually wants. The version most advisors encounter is the two-step, which opens the path to ordinary exchange investors:
1. The investor completes a standard 1031 exchange into a Delaware Statutory Trust sponsored by a REIT’s affiliate.
2. After a seasoning period — commonly around two to three years, long enough to respect the exchange’s held-for-investment requirement — the REIT’s operating partnership acquires the DST’s property in a 721 transaction, and investors’ DST interests convert into OP units.
The result: an investor who started with a single rental property ends up holding a diversified REIT interest, with deferral intact at every step. Many current DST programs are explicitly designed with this outcome, so understanding it belongs in due diligence, not in the exit conversation.
The one-way door
The critical planning point: 721 is a one-way door for exchange purposes. Partnership interests are not like-kind property, so OP units cannot be exchanged under Section 1031. Once an investor converts real estate into OP units, the serial-exchange strategy ends — future liquidity comes from converting units (taxable) or holding. What survives is the estate outcome: OP units, like directly held property, generally receive a stepped-up basis at death, which can eliminate the deferred gain for heirs. For investors whose plan is swap till you drop, a 721 endpoint can be consistent with that plan — as long as they don’t expect to exchange again.
Other diligence items: distributions on OP units depend on REIT performance; the REIT typically controls whether and when the DST-to-OP transaction happens; and holders receive a Schedule K-1 as partners in the OP, a paperwork change from grantor-trust DST reporting.
FAQ
What is a 721 exchange in simple terms?
Contributing property to a REIT’s operating partnership in exchange for partnership units, without triggering tax at the time of contribution. It converts a building into a REIT-linked interest while keeping gains deferred.
What's the difference between a 1031 and a 721 exchange?
A 1031 swaps real estate for real estate and can be repeated indefinitely; a 721 swaps real estate for partnership units and can’t be followed by another 1031. The 1031 has strict deadlines and an intermediary; the 721 has neither.
Are OP units the same as REIT shares?
Economically similar — value and distributions generally track the REIT — but legally distinct partnership interests, usually convertible into REIT shares after a holding period. Conversion is taxable.
Why do DST programs lead to 721 transactions?
Sponsors design many DSTs as a pipeline: exchange investors get in through 1031, and the affiliated REIT later absorbs the property via 721, giving investors diversification and potential liquidity while growing the REIT. The mechanics and the REIT’s discretion should be understood upfront.
Related terms
UPREIT · Operating Partnership (OP) · 1031 Exchange · Delaware Statutory Trust (DST) · Stepped-Up Basis · Schedule K-1
Educational content only; not investment, tax, or legal advice. Consult qualified professionals regarding your specific circumstances.
