The short answer
A 721 roll-up is a contribution of the DST's real estate, or of your interest in it, to a REIT's operating partnership in exchange for OP units, and §721(a) says no gain or loss is recognized on it. Your deferred gain, basis and holding period travel into the units under §722 and §1223(1), so the tax bill is postponed again, but the units are a partnership interest that can never be exchanged under §1031 and are taxed under §741 when you redeem them. It suits investors who want liquidity in installments, portfolio diversification and a simpler estate, and it is wrong for anyone planning another exchange.
At a glance
| Nonrecognition | §721(a): no gain or loss to partner or partnership on a contribution for an interest |
|---|---|
| Basis in units | §722: adjusted basis of the contributed property carries over |
| Holding period | §1223(1): tacks because the basis carried over |
| Cash near the swap | Reg. §1.707-3(c): consideration within 2 years is presumed a sale; §707(a)(2)(B) |
| Debt shifts | §752(b): a decrease in your share of liabilities is a deemed cash distribution |
| Redeeming units | §741: sale or exchange of a partnership interest; gain recognized |
| Investment-company trap | §721(b): no nonrecognition if the partnership would be an investment company |
| DST hold before roll-up | Inland: averaging two to three years; ExchangeRight: targeted two years |
Roll-up day: the trust's property goes in, OP units come out, and no intermediary is involved
On the contribution date the DST's real estate, or the beneficial interests in the trust, is transferred to the REIT's operating partnership and you are issued OP units at a value the partnership sets, usually its net asset value per unit. §721(a) provides that 'no gain or loss shall be recognized to a partnership or to any of its partners in the case of a contribution of property to the partnership in exchange for an interest in the partnership', so there is no closing through a qualified intermediary, no identification and no 180-day clock.
ExchangeRight describes the step as investors participating 'in a tax-deferred exchange of their DST interests for ownership in an operating partnership of a REIT under Section 721', and JLL Income Property Trust's 10-K shows the mechanics from the REIT side, with DST interests sold through its operating partnership exchanged for designated classes of OP units.
Your tax attributes move with you. Under §722 the units take 'the adjusted basis of such property to the contributing partner', and §1223(1) tacks your holding period because the basis carried over.
Hypothetical case study: $1,000,000 into a multifamily DST, rolled up in year three
You sold a rental with a $300,000 adjusted basis and exchanged $1,000,000 of equity into a multifamily DST, deferring $700,000 of gain. Three years later the sponsor contributes the property to its REIT's operating partnership; your interest is valued at $1,100,000 and you receive 11,000 OP units at $100 each with no tax due.
Your basis in the 11,000 units is about $300,000 less the depreciation the DST passed through, roughly $27 a unit. In year five you redeem 2,000 units for $220,000 of cash: §741 treats that as a sale of a partnership interest, so you recognize about $165,000 of gain, part of it unrecaptured §1250 gain taxed at up to 25%, and the other 9,000 units stay deferred.
If you die holding the remaining units, §1014 gives your heirs a basis equal to their fair market value at death, and the deferred gain on those units is never taxed.
Benefits: liquidity in slices, a whole portfolio's income, and an estate holding units instead of buildings
The reason investors accept the roll-up is what OP units can do that a DST interest cannot. Inland's program page lists the three: 'a redemption program for limited partnership interests may provide more liquidity, allowing property owners to redeem interests in whole or in part'; access to 'an existing and growing portfolio' diversified 'by asset classes and geography'; and units that 'can later be converted into REIT shares or cash'.
Distributions change character too. Instead of a trust-level payout from one property's rent, you receive the operating partnership's distribution, set by the REIT and paid on the whole portfolio, which can rise with acquisitions or be cut in a downturn.
For an estate the change is practical. Heirs receive units with a stepped-up basis that they can redeem over time rather than a beneficial interest that waits for a trust-level sale, and nobody faces a future 45-day clock.
Trade-offs: the exchange door closes, debt shifts can trigger gain, and the timing is the sponsor's
OP units are interests in a partnership, which Reg. §1.1031(a)-3 says are not real property, so no future §1031 is possible for the units or for the shares they become. Redemption programs may be limited or suspended, and converting units into REIT shares is itself a taxable exchange.
Two partnership rules can produce tax on the roll-up itself. Under §752(b) any decrease in your share of liabilities 'shall be considered as a distribution of money', and §731(a)(1) taxes a money distribution to the extent it exceeds your basis, so an investor whose DST loan share exceeds a depreciated basis can owe tax if the operating partnership allocates less debt; separately, §721(b) denies nonrecognition if the partnership would be an investment company.
Finally, the contribution happens when the sponsor's option says so, at a unit price the REIT sets, and the built-in gain on the contributed property stays allocated to you under §704(c)(1)(A) if the partnership later sells it, so ask whether the REIT offers any protection against that sale.
Holding-period and disguised-sale rules that set the calendar around a roll-up
There is no statutory minimum DST hold, but a 721 that was prearranged when you exchanged invites the argument in Rev. Rul. 77-337 and Rev. Rul. 75-292 that the DST interest was never 'held for investment' by you. Sponsors answer with time: Inland reports averages of two to three years, and ExchangeRight targets two.
- Reg. §1.707-3(c): money or other consideration you receive within two years of contributing is presumed a sale unless the facts 'clearly establish' otherwise, and the position must be disclosed.
- Reg. §1.707-3(d): transfers more than two years apart are presumed not to be a sale.
- §737: if the partnership distributes other property to you within seven years, you recognize the lesser of the excess value or your net precontribution gain.
- §704(c)(1)(B): if the property you contributed is distributed to another partner within seven years, your built-in gain is recognized.
Who should say yes to the units, and who should ask for the alternative
Say yes if you are done exchanging, want to sell down in pieces, prefer a REIT's diversified distribution to one trust's, or intend to hold until death for the step-up. Ask what else the trust agreement allows if you want to exchange again, need most of the cash within a few years, or carry a loan share well above your basis.
Ask the sponsor, in writing and before the deadline, for the unit valuation method, the redemption program's terms and caps, and the share of partnership debt you will be allocated.
The alternative, where one exists, is usually a taxable cash-out of your interest, so have your CPA or attorney model both outcomes before the sponsor's notice deadline.
Related questions
Do I get to vote on the roll-up?
Read the trust agreement: the contribution is typically written as the sponsor's right, exercised for the whole trust, and a DST investor has no operational vote under Rev. Rul. 2004-86.
How is income from OP units reported compared with the DST?
As a partner you receive a Schedule K-1 with your allocations of partnership income, deductions and liabilities, instead of the grantor-trust statement of your share of the DST's rents and expenses.
Can I roll a building I own directly into a REIT under §721?
Yes, if a REIT operating partnership agrees to take it; §721 is not limited to DSTs, and the DST route exists to aggregate smaller investors into assets a REIT wants.
Does converting OP units into REIT shares keep the deferral?
No. The conversion is an exchange of a partnership interest for stock and is taxed under §741; only holding the units, or dying with them, keeps the gain deferred.
Is the two-year presumption a safe harbor?
No. Reg. §1.707-3 sets presumptions in both directions; the facts and circumstances in §1.707-3(b) still decide, and the disclosure requirement applies to transfers within two years.
What happens to the DST's loan when the property is contributed?
The operating partnership takes the property subject to the debt or refinances it, and your share of partnership liabilities afterwards is compared with your share of the DST loan before. Any decrease is a deemed distribution under §752(b), taxable under §731(a)(1) to the extent it exceeds your basis.
Sources
Checked against these publications on September 19, 2026. Rules and figures change; confirm the current version with your CPA or attorney before you act. This page is general information, not tax or legal advice.
- 26 U.S.C. §721 (nonrecognition on contribution to a partnership)
- 26 U.S.C. §722 (basis of contributing partner's interest)
- 26 U.S.C. §707 (disguised sales, §707(a)(2)(B))
- Treas. Reg. §1.707-3 (disguised sales of property to a partnership)
- 26 U.S.C. §752 (treatment of partnership liabilities)
- 26 U.S.C. §741 (sale or exchange of a partnership interest)
- 26 U.S.C. §704 (partner's distributive share; §704(c))
- Rev. Rul. 77-337 (restating Rev. Rul. 75-292)
- Inland Investments, 721 exchange
- ExchangeRight, 1031 and 721 exchange solutions
