The short answer
A beneficial interest in a Delaware statutory trust (DST) is an investor's undivided share of the trust's property, profits and losses, held as an interest in the trust rather than as a deeded share of the real estate. Delaware law calls that interest personal property, but Rev. Rul. 2004-86 treats a properly limited DST as a grantor trust, so for federal income tax each owner is considered to own an undivided fractional interest in the building itself. That federal treatment is what lets a DST interest serve as section 1031 replacement property.
At a glance
| Legal form | An undivided beneficial interest in the trust's property, which Delaware law treats as personal property |
|---|---|
| Tax treatment | Owner of an undivided fractional interest in the trust's real estate under the grantor trust rules |
| Liability | Same limitation of personal liability as stockholders of a Delaware corporation, unless the trust agreement says otherwise |
| Transfer | Freely transferable under the Delaware default, subject to the trust agreement and securities resale limits |
Delaware law calls the interest personal property, while federal tax law looks through it to the building.
The Delaware Statutory Trust Act sets the default terms. Under 12 Del. C. section 3805, a beneficial owner holds an undivided beneficial interest in the trust's property and shares in profits and losses in proportion to that interest. The interest is personal property 'notwithstanding the nature of the property of the statutory trust,' and the owner has no interest in specific trust property unless the trust agreement says so. Section 3803 gives beneficial owners the same limitation of personal liability as stockholders of a Delaware corporation.
Federal tax law starts from the opposite direction. Section 1031(a)(1) covers only real property, and Reg. section 1.1031(a)-3(a)(5)(i) lists certificates of trust or beneficial interests among the intangibles that are not real property for section 1031.
Rev. Rul. 2004-86 bridges the gap. Because the trustee had no power to vary the investment, the trust was an investment trust taxed as a grantor trust, and an owner of an undivided fractional interest in such a trust 'is considered to own the trust assets attributable to that interest for federal income tax purposes.' The investors' exchange was therefore treated as real property for an interest in the building, not for a beneficial interest.
A hypothetical $1,000,000 interest in a trust with $10,000,000 of equity is a 10% share of everything the trust owns and owes.
Hypothetical: a DST raises $10,000,000 of equity and buys a net-leased building for $20,000,000 with a $10,000,000 nonrecourse loan. You exchange into $1,000,000 of interests, 10% of the equity. For tax purposes you are treated as owning 10% of the building subject to 10% of the loan, and your return carries 10% of the rent, interest and depreciation.
How your share of the trust's loan counts toward replacing the debt you paid off at sale is covered at whether a DST loan counts as replacement debt. Run your own numbers with your CPA before you rely on any split like this one.
Ownership stops at the economics. In the ruling, the trust agreement limited the trustee to collecting and distributing income, and barred new contributions, new leases except on the tenant's bankruptcy or insolvency, and any renegotiation of the debt. You cannot direct the trustee or sell a slice of the building on your own.
It bites when you want out, because the interest is an illiquid security rather than a deed you can list.
The Delaware Act makes a beneficial interest freely transferable unless the governing instrument says otherwise, and the trust agreement in Rev. Rul. 2004-86 provided that interests were freely transferable but not publicly traded on an established securities market. A DST interest sold under Regulation D is also a restricted security under Rule 502(d), which cannot be resold without registration or an exemption. See DST illiquidity and exits.
It also bites at the next exchange. When the trust sells the building, you are treated as selling your share of real estate and can exchange again; if your interest is instead contributed to an operating partnership, what you receive is a partnership interest, which Reg. section 1.1031(a)-3 does not treat as real property. For the full picture read what you own in a DST and DST like-kind qualification.
Related questions
Is a DST beneficial interest the same as a tenant-in-common interest?
No. A tenant-in-common owner holds a deeded undivided interest in the real estate, while a DST investor holds an interest in the trust, which holds title. Federal tax treats both as owning a share of the real estate when the DST meets Rev. Rul. 2004-86; see DST vs TIC structure.
Am I personally liable for the trust's mortgage?
Under the Delaware Act, beneficial owners get the same limitation of personal liability as corporate stockholders unless the trust agreement says otherwise. In Rev. Rul. 2004-86 neither the trust nor its beneficial owners were personally liable on the note, which was secured by the property.
Can I give or leave my beneficial interest to someone?
The Delaware default is free transferability, subject to the trust agreement, and the trust in the ruling did not terminate on an owner's death. The mechanics are covered at transferring a DST interest to heirs and trusts.
Sources
Checked against these publications on September 30, 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.
