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Key Facts
- Federal level: Section 1031 can defer recognition of gain or loss when qualifying business or investment real property is exchanged solely for like-kind real property that will also be held for business or investment.
- Federal level: For exchanges completed after 2017, personal and intangible property generally cannot receive Section 1031 treatment.
- Federal level: In a deferred exchange, replacement property generally must be identified in writing within 45 days and received by the earlier of 180 days or the federal return due date, including extensions.
- Federal level: Cash, debt relief, or other non-like-kind property can make part of the realized gain currently taxable even when the rest of the exchange qualifies.
- Federal level: A like-kind exchange defers tax rather than permanently erasing gain; the replacement property’s basis generally reflects the basis carried over from the relinquished property.
A 1031 exchange, named for Section 1031 of the Internal Revenue Code and commonly called a like-kind exchange, is a federal income-tax mechanism that can postpone recognition of gain or loss when qualifying real estate is exchanged rather than sold for unrestricted cash.
Deferral is the central idea: when the requirements are met, unrecognized gain generally remains embedded in the replacement property’s basis and may enter the calculation after a later taxable disposition.
Which property qualifies?
Both the relinquished and replacement properties must be real property held for productive use in a trade or business or for investment; land, commercial buildings, and rentals may qualify, while dealer inventory, property held primarily for sale, and a residence used solely as a personal home do not qualify on those facts.
A dwelling with genuine investment use can raise a mixed-use question, and IRS Revenue Procedure 2008-16 supplies an optional safe harbor for certain dwelling units, but that safe harbor addresses qualifying use only and does not waive the exchange’s other requirements.
For exchanges after 2017, Section 1031 generally is limited to real property, so vehicles, machinery, artwork, securities, partnership interests, and other personal or intangible property are not eligible merely because they appear in the same transaction.
What does “like kind” mean?
For U.S. real property, like kind concerns nature or character rather than grade or quality, which means different forms of investment real estate—such as unimproved land and a rental building—can be like kind if their holding purpose and the remaining requirements are satisfied.
Geography creates a firm statutory boundary because real property in the United States is not like kind to real property outside the United States.
A deferred exchange is not simply a later purchase
Section 1031 requires an exchange rather than a sale followed by a purchase, so actual or constructive receipt of unrestricted proceeds before replacement property is obtained can cause the transaction to be treated as a taxable sale.
Deferred exchanges often rely on the Treasury regulation’s qualified-intermediary safe harbor: in simplified terms, an intermediary becomes obligated to transfer the replacement property while the owner’s rights to sale proceeds remain restricted, although using the title “qualified intermediary” cannot cure a missed substantive or timing rule.
The 45-day and 180-day periods
The identification period ends 45 days after transfer of the relinquished property, and the replacement property generally must be described clearly in a signed writing delivered to a permitted exchange participant within that period.
The exchange period ends on the earlier of 180 days after the transfer or the due date, including extensions, of the federal income-tax return for the transfer year; these periods run concurrently, and regulations also restrict multiple-property identifications through three-property and value-based rules.
Cash, debt, and basis
Money or non-like-kind property received alongside replacement real estate—often called boot—can produce recognized gain up to the applicable amount, a realized loss is not recognized under the exchange rule, and debt relief, liabilities assumed, and cash paid can affect the calculation.
The replacement property’s basis generally starts from the relinquished property’s adjusted basis with statutory adjustments, so an exchange of investment land with a $200,000 adjusted basis and $350,000 value solely for qualifying real estate worth $350,000 can defer the $150,000 realized gain and generally begin the replacement basis at $200,000 before transaction-specific adjustments.
Reporting, related parties, and jurisdiction
Form 8824 reports the exchange for the transaction year even when no gain or loss is recognized, while recognized amounts may also appear on Form 4797, Schedule D, or another return component depending on the property and character of gain.
Related-person provisions can reverse deferral after a disposition within two years, subject to statutory exceptions, and an intermediary does not protect a transaction structured to avoid those restrictions.
Depreciation recapture, mixed personal and investment use, multiple assets, reverse exchanges, and installment obligations can add distinct federal issues, while Section 1031 neither determines recurring real estate taxes nor the separate federal estate tax.
Section 1031 governs federal income-tax recognition; state conformity, withholding, reporting, and later taxation remain separate questions under the relevant state’s law and can require a state-specific analysis even when the federal exchange qualifies.
Sources
- 26 U.S.C. § 1031 — exchanges of real property held for productive use or investment
- 26 C.F.R. § 1.1031(k)-1 — deferred exchange rules and safe harbors
- IRS Publication 544 (2025), Sales and Other Dispositions of Assets
- IRS Instructions for Form 8824 (2025)
- IRS real-estate tax tips for like-kind exchanges
- IRS Revenue Procedure 2008-16 dwelling-unit safe harbor
