When you sell real estate for more than you paid for it, the profit is taxable in the year of the sale. Section 1031 of the Internal Revenue Code creates an exception. If you dispose of real property held for business or investment purposes and replace it with other real property held for the same purposes, the gain is not recognized at the time of the exchange. The tax is deferred rather than forgiven.
That single idea has been in the tax code since 1921, and it remains one of the most useful provisions available to anyone who owns rental property, farmland, or commercial buildings. It is also one of the most technically demanding. The rules are unforgiving about deadlines, about who may hold the money, and about what counts as qualifying property. A transaction that fails on any one of those points is simply a taxable sale, and there is no mechanism for fixing it after the fact.
The Statutory Requirement
Section 1031 provides that no gain or loss is recognized on the exchange of real property held for productive use in a trade or business or for investment, if that property is exchanged solely for real property of like kind which is also to be held for productive use in a trade or business or for investment.
Every phrase in that sentence carries weight. The property must be real property. It must be held for business or investment purposes on both sides of the transaction. It must be exchanged rather than sold. And the replacement must be like-kind.
Real property only
Before 2018, Section 1031 applied to a wide range of assets, including business equipment, vehicles, artwork, and livestock. The Tax Cuts and Jobs Act narrowed the provision to real property, and that limitation remains in effect. Personal property, intangible property, and cryptocurrency are outside the statute entirely.
The Treasury Department issued final regulations in late 2020 defining what constitutes real property for these purposes. The definition includes land, inherently permanent structures such as buildings, and the structural components of those structures. It also reaches certain intangible interests in real property, including leaseholds of thirty years or more, easements, and mineral interests. Where a transaction includes items of tangible personal property, those items do not necessarily disqualify the exchange, but they are treated as non-qualifying property and produce taxable gain.
Held for business or investment
The holding purpose is the central inquiry, and it applies to both the property you give up and the property you receive. Rental houses, apartment buildings, farmland, timberland, warehouses, office buildings, and raw land held for appreciation all qualify. Three categories of property do not.
A primary residence is personal use property and cannot be exchanged. It has its own tax benefit under Section 121, which excludes up to $250,000 of gain for a single filer and $500,000 for a married couple filing jointly.
Property held primarily for sale is expressly excluded by the statute. This category captures inventory and dealer property, which is to say the property of someone in the business of buying, renovating, and reselling real estate. The distinction between an investor and a dealer turns on facts such as the frequency of sales, the extent of improvements, and the taxpayer’s stated intent, and it is litigated regularly.
Interests in a partnership are not eligible, even though the partnership itself may own only real estate. This restriction generates considerable complexity when co-owners want to go separate ways after a sale, and the workarounds are outside the scope of this article.
Like-kind is broader than it sounds
For real property, like-kind is an extremely permissive standard. Improved property is like-kind to unimproved property. A single-family rental is like-kind to an apartment complex. Farmland is like-kind to a strip center. A fee interest is like-kind to a long-term leasehold. Grade, quality, and use are irrelevant, provided both properties are held for a qualifying purpose.
The one categorical limit is geographic. Real property located in the United States is not like-kind to real property located outside the United States.
The same taxpayer must be on both sides
The taxpayer who sells the relinquished property must be the taxpayer who acquires the replacement property. If an individual sells and then takes title to the new property in the name of a newly formed corporation, the exchange fails. Single-member limited liability companies are disregarded for federal income tax purposes and generally do not present a problem, but title changes between the two legs of a transaction should be reviewed before closing, not afterward.
The Mechanics of a Deferred Exchange
Two-party swaps in which each side simply hands the other a deed are rare. Nearly every exchange today is a deferred exchange, in which the taxpayer sells to one party and buys from another, with the two closings separated by weeks or months. The statutory framework for these transactions, added in 1984 and elaborated by regulation in 1991, imposes strict timing and possession requirements.
The forty-five day identification period
Within forty-five days after the closing of the relinquished property, the taxpayer must identify the replacement property in a written document, signed by the taxpayer, and delivered to a party involved in the exchange who is not the taxpayer or a disqualified person. The identification must describe the property unambiguously, typically by legal description or street address.
Identifications may be revoked and replaced at any time before the deadline, but once midnight of the forty-fifth day passes, the list is fixed.
The number of properties that may be identified is governed by three alternative rules. Under the three-property rule, the taxpayer may identify up to three properties without regard to their value. Under the 200 percent rule, the taxpayer may identify any number of properties so long as their aggregate fair market value does not exceed twice the value of the property sold. Under the 95 percent exception, an identification exceeding both of the preceding limits will still be respected if the taxpayer actually acquires at least 95 percent of the value of all identified properties.
The one hundred eighty day exchange period
The replacement property must be received within the earlier of one hundred eighty days after the transfer of the relinquished property, or the due date of the taxpayer’s return for the year of that transfer, including extensions.
The second half of that rule catches taxpayers who close in the last quarter of the year. A sale closing in November leaves fewer than one hundred eighty days before the following April filing deadline unless the taxpayer files an extension. Filing the extension preserves the full period.
Both periods run concurrently from the date of the transfer, counted in calendar days. Weekends and holidays are included. Where multiple properties are relinquished, the clock starts on the earliest transfer. The Internal Revenue Service has no authority to grant individual extensions, and the only general relief available comes through disaster declarations, which occasionally postpone these deadlines for taxpayers in affected areas.
The prohibition on receipt of funds
A taxpayer who receives the proceeds of the sale, or who has an unrestricted right to receive them, has recognized the gain. Actual receipt defeats the exchange, and so does constructive receipt.
The regulations provide four safe harbors that permit a taxpayer to avoid constructive receipt. The most commonly used is the qualified intermediary, an independent party who enters into a written exchange agreement with the taxpayer, acquires and transfers the relinquished property, holds the proceeds, and then acquires and transfers the replacement property. The exchange agreement must expressly limit the taxpayer’s right to receive, pledge, borrow, or otherwise obtain the benefits of the funds during the exchange period.
Certain people are disqualified from serving as an intermediary. These include anyone who has acted as the taxpayer’s employee, attorney, accountant, investment banker, or real estate agent within the two-year period preceding the exchange, along with parties related to the taxpayer. This is why the lawyer who handles your closing generally cannot serve as your intermediary.
Qualified intermediaries are not licensed or regulated at the federal level, and only a minority of states regulate them. Because the intermediary will hold the entire proceeds of the sale, sometimes for months, the choice deserves scrutiny. Reasonable questions concern segregation of client funds, fidelity bonding, errors and omissions coverage, and financial statements.
Reverse and improvement exchanges
A taxpayer who must acquire the replacement property before the relinquished property sells may use a reverse exchange. Because the same taxpayer cannot own both properties simultaneously, an exchange accommodation titleholder takes and holds title to one of them under a parking arrangement described in a 2000 revenue procedure. The taxpayer then has forty-five days to identify the property to be relinquished and one hundred eighty days to complete the transaction.
An improvement exchange, sometimes called a build-to-suit exchange, allows exchange proceeds to be used for construction on the replacement property. The improvements must be completed before the property is transferred to the taxpayer, because only the value in place at the time of transfer counts toward the exchange. Both structures are more expensive and more fragile than a standard forward exchange.
Boot, Recognized Gain, and Basis
An exchange is fully tax-deferred only when the taxpayer receives nothing but like-kind property. Anything else received is commonly called boot, and gain is recognized to the extent of the boot, up to the amount of the gain realized.
Boot takes two principal forms. Cash boot is money the taxpayer withdraws from the transaction. Mortgage boot arises when the debt on the replacement property is less than the debt that was relieved on the relinquished property. Relief from a liability is treated as the receipt of money, because the taxpayer has been enriched by the reduction in obligations. Cash contributed to the purchase of the replacement property may offset mortgage boot, but new debt taken on will not offset cash the taxpayer withdrew.
The practical rule that follows is that a taxpayer seeking full deferral should acquire replacement property of equal or greater value, reinvest all of the net equity from the sale, and replace the debt that was retired.
Where gain is recognized, its character matters. Depreciation previously claimed on the relinquished property does not simply vanish. Gain attributable to depreciation on real property is unrecaptured Section 1250 gain, taxed at a maximum federal rate of 25 percent rather than the preferential capital gains rates. Under the ordering rules, recognized gain is treated as depreciation recapture first. A partial exchange that produces modest boot can therefore generate tax at 25 percent rather than 15 percent, which surprises taxpayers who expected the boot to be taxed at capital gains rates.
Section 1031 also prevents the recognition of losses. A taxpayer whose property has declined in value ordinarily should not exchange it.
Basis carries over
The basis of the replacement property equals the basis of the relinquished property, decreased by any money received and increased by any gain recognized and any additional money invested. Expressed differently, the replacement property’s basis is its fair market value reduced by the gain that was deferred.
This carryover has consequences beyond the eventual sale. Depreciation on the replacement property is computed under regulations that generally require the carried-over portion of the basis to continue depreciating over the remaining recovery period of the old asset, while any additional basis from new money invested is treated as newly placed in service. The taxpayer who exchanges into a more valuable building does not get to start a fresh twenty-seven and one-half year schedule on the entire purchase price.
The Related Party Rules
Section 1031(f) addresses exchanges between related parties, defined by reference to family members and to entities in which the taxpayer holds a controlling interest. Where a taxpayer exchanges property with a related person, both parties must hold their respective properties for at least two years. A disposition by either party within that period causes the deferred gain to be recognized, with limited exceptions for death, involuntary conversion, and transactions shown not to have tax avoidance as a principal purpose.
A separate anti-abuse provision reaches transactions structured to circumvent this rule. The Internal Revenue Service has ruled that a taxpayer who uses a qualified intermediary to acquire replacement property from a related party, where that related party receives cash, is treated as having exchanged directly with the related party. Several appellate decisions have applied the provision to defeat exchanges in which the overall arrangement shifted basis among related entities and reduced aggregate tax. Any exchange involving a family member or a controlled entity requires careful advance analysis.
Reporting and Failed Exchanges
An exchange is reported on Form 8824, filed with the return for the year in which the relinquished property was transferred, regardless of when the replacement property was acquired. The form requires descriptions of both properties, the relevant dates, the computation of realized and recognized gain, and the resulting basis.
When an exchange fails because no replacement property is acquired, the transaction is a sale. If the taxpayer had a bona fide intent to complete an exchange and the proceeds are received in the year after the sale, the regulations permit the gain to be reported under the installment method in the year of receipt. This is a narrow provision, and it depends on the taxpayer never having had a right to the funds in the earlier year.
Interaction with Estate Planning
The most significant feature of Section 1031 is not addressed in Section 1031 at all.
Property owned at death receives a new income tax basis equal to its fair market value on the date of death. Deferred gain accumulated over decades of successive exchanges is eliminated when the owner dies, and so is the unrecaptured depreciation. Heirs who sell shortly after inheriting the property realize little or no taxable gain. Practitioners refer to this pattern as exchanging until death, and it converts what the statute describes as deferral into permanent exclusion.
Several conditions attach. The property must be included in the owner’s gross estate, which means it must be owned at death rather than given away during life. A lifetime gift of the property transfers the owner’s low basis to the recipient and forfeits the benefit entirely. The property remains subject to federal estate tax, although the exemption for 2026 stands at $15 million per person and $30 million for a married couple, so the great majority of estates will owe none. South Carolina imposes neither an estate tax nor an inheritance tax.
It is also worth stating plainly that tax deferral is not a sufficient reason to buy real estate. The compressed timeline of an exchange creates pressure to acquire a property that would not otherwise be purchased, and a poor investment acquired under deadline is not improved by the tax treatment.
South Carolina Considerations
South Carolina conforms to the federal treatment of like-kind exchanges. Gain deferred for federal purposes is deferred for state purposes, with no separate election or filing required.
South Carolina taxes capital gains as ordinary income but permits a deduction equal to 44 percent of net long-term capital gain, which materially reduces the effective state rate on a taxable disposition. In a fully deferred exchange, no gain is recognized and the deduction is not needed.
A nonresident who sells real property located in South Carolina is subject to withholding at closing under state law. The buyer generally withholds 7 percent of the gain in the case of a nonresident individual, partnership, trust, or estate, and 5 percent in the case of a nonresident corporation, with a higher measure applying when the seller does not certify the amount of gain. A properly documented exchange can eliminate or reduce that withholding, but the mechanism requires a seller’s affidavit and coordination between the closing attorney and the qualified intermediary. This should be arranged well before the closing date.
Alternatives Worth Knowing
An exchange is not the only method of managing gain on a disposition. An installment sale spreads the gain across the years in which payments are received, which can reduce exposure to the higher capital gains bracket and to the net investment income tax. A charitable remainder trust permits the sale of appreciated property inside a tax-exempt trust, with an income stream returning to the donor. For an owner who wants to remain in real estate without managing it, a beneficial interest in a Delaware statutory trust has been ruled to constitute qualifying replacement property, as has an undivided tenancy in common interest structured within published guidelines.
Each of these has costs and constraints of its own, and none of them is interchangeable with an exchange.
Summary
Section 1031 defers federal and state income tax, including depreciation recapture and the net investment income tax, on the disposition of real property held for business or investment, provided the proceeds are reinvested in like-kind real property within the statutory periods and the taxpayer never controls the funds. The deferred gain reduces the basis of the replacement property and resurfaces on a later taxable sale. It disappears altogether if the owner holds the property until death.
The requirements are mechanical, the deadlines are absolute, and the structure must be established before the relinquished property closes. Anyone considering the sale of investment real estate in South Carolina should evaluate an exchange at the point the property is listed rather than at the closing table.
This article addresses general principles of federal and South Carolina law and is not legal or tax advice. Exchange transactions are fact-specific and small variations change the analysis. If you are considering the sale of investment property, we would be glad to review your situation with you and your accountant.
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