Both a Section 1031 exchange and a Section 721 contribution defer gain on the sale of investment property, but they are structurally different transactions, and confusing them leads to a mismatch between what an owner expects and what they end up holding. A 1031 exchange trades real property for other real property. A Section 721 contribution trades real property for units in an operating partnership, the same structure that underlies most publicly traded REITs.
For a homeowner who has genuinely converted a former residence to a rental, both paths require the property to have already left personal-use status and become documented investment real estate. Neither applies to a home still functioning as a primary residence, no matter how the transaction is structured.
The core distinction that matters most in practice: a 1031 exchange keeps the owner holding real property directly, or through a DST interest treated as real property for exchange purposes, while a 721 contribution converts the owner into a partner in a fund, holding units rather than a deed to any specific property.
A 1031 exchange is a sale of relinquished property paired with a purchase of replacement property, both real estate, coordinated through a qualified intermediary so the seller never has actual or constructive receipt of the sale proceeds. The result is direct or DST ownership of a specific new property or properties.
A Section 721 contribution is a transfer of appreciated real property into an operating partnership in exchange for operating partnership units, valued based on the property's contributed value. The result is a partnership interest, not ownership of the specific property contributed or any other specific real estate asset; the partnership, typically affiliated with a REIT, holds a diversified portfolio.
A 1031 exchange typically concentrates the owner's investment in one, or a small number of, specific replacement properties, whether a directly owned building or a DST interest tied to one underlying asset or a small pool. Performance depends heavily on that specific property's tenants, location, and market.
A 721 contribution generally provides exposure to a much larger, diversified pool of properties held by the operating partnership, spreading risk across many assets and tenants rather than concentrating it in whatever replacement property was available during a 45-day identification window.
A 1031 exchange preserves the ability to exchange again later, continuing to defer gain indefinitely across a chain of replacement properties, with no built-in path to true liquidity other than an eventual taxable sale or a stepped-up basis at death.
A 721 contribution's operating partnership units are typically illiquid at first but often convertible, under the sponsor's terms, into shares of the affiliated REIT after a holding period, which can then potentially be sold on a public market if the REIT is publicly traded. That conversion is generally a taxable event, so the deferral ends at that point rather than continuing indefinitely the way a chain of 1031 exchanges can.
An owner who completes a 1031 exchange into a directly owned property retains full control over leasing, financing, and disposition decisions for that specific asset. An owner in a DST interest gives up day-to-day control but the DST itself is still tied to specific identified real estate.
An owner who contributes property under Section 721 gives up control entirely; decisions about the partnership's holdings, acquisitions, and dispositions rest with the REIT's management, not with the individual contributor, whose position is now a percentage interest in the partnership rather than a stake in any particular building.
An owner who wants to remain a direct real estate investor, retain some control over the specific asset, and preserve the option to keep exchanging indefinitely usually leans toward a 1031 exchange. An owner who wants broad diversification, is comfortable becoming a passive limited partner, and sees an eventual conversion to REIT shares as a reasonable path toward future liquidity may prefer a Section 721 contribution.
Some sponsors offer a combined path: a 1031 exchange into a DST interest, followed later by a contribution of that DST interest into an operating partnership under Section 721, sometimes described as a 721 exchange, giving an owner exchange-style deferral first and diversified partnership exposure later, on the owner's own timeline.
