What Is a 1031 Exchange in Commercial Real Estate?

This guide explains what a 1031 exchange is, which commercial properties qualify, the two deadlines that decide whether the exchange works, the role of the qualified intermediary, and the points where investors most often lose the deferral without meaning to.

Key Takeaways

• A 1031 exchange lets you defer capital gains tax when you sell investment or business real property and reinvest the proceeds in replacement real property. The tax is postponed, not forgiven.
• Since the regulations that apply to exchanges beginning after 2 December 2020, section 1031 covers real property only. Equipment, vehicles and other personal property no longer qualify.
• Two deadlines run from the day you transfer the property you are giving up: 45 calendar days to identify replacement property in writing, and 180 calendar days to receive it. The second deadline is cut short if your tax return is due sooner.
• A qualified intermediary must hold the proceeds. If the money reaches you at any point, the exchange fails. Your agent, attorney, accountant or a related party cannot act as the intermediary.
• Cash taken out, or debt that falls rather than being replaced, is treated as boot and is taxable even when the rest of the exchange qualifies.
• Your basis and your accumulated depreciation carry across to the replacement property, so the deferred liability travels with you until you sell without exchanging.

What Is a 1031 Exchange?

A 1031 exchange, named after section 1031 of the Internal Revenue Code, allows an owner of investment or business real property to sell that property and reinvest the proceeds in other real property without paying capital gains tax at the point of sale. The transaction is treated as an exchange of one asset for another rather than a sale followed by a purchase.

The word deferral matters. The tax does not disappear. It attaches to the replacement property through a reduced basis and comes due whenever that property is eventually sold outside an exchange. Investors who move from one asset to the next through successive exchanges can carry the liability forward for decades, but it remains on the books.

The appeal is straightforward. Tax paid at the point of sale is capital that cannot be reinvested. Deferring it keeps the full proceeds working, which is why exchanges are common when an owner wants to move up in asset size, change property type, or shift out of a market without taking a cash hit in the middle of the transition.

The rules are unforgiving about process. A 1031 exchange is not something that can be arranged after a sale has closed. The structure has to be in place before the first property transfers, and the deadlines that follow are fixed.

Which Properties Qualify as Like-Kind?

The property given up and the property received must both be real property held for productive use in a trade or business or held for investment. Property held primarily for resale does not qualify, which is why developers building to sell and investors flipping assets generally cannot use section 1031.

Like-kind is interpreted broadly for real property. It refers to the nature of the asset rather than its grade, quality or use. An office building can be exchanged for industrial space, retail for multifamily, raw land for a warehouse. The different types of commercial real estate are generally like-kind to one another, which gives investors considerable freedom to change strategy without triggering tax.

Three limits are worth knowing.

The first is that section 1031 now applies to real property only. Regulations implementing that change apply to exchanges beginning after 2 December 2020. Equipment, vehicles, artwork and other personal property were eligible in the past and are not eligible now. Where incidental personal property transfers alongside the real estate, it is treated separately and may create a taxable element.

The second is that both properties must be in the United States. Domestic real property and foreign real property are not like-kind to each other.

The third is that a primary residence does not qualify, because it is not held for business or investment. A property used partly as a home and partly for business is split, with only the business or investment portion eligible.

What Are the 45-Day and 180-Day Deadlines?

Almost every 1031 exchange in commercial real estate is a deferred exchange, meaning the replacement property is acquired after the original property is sold rather than swapped simultaneously. Two deadlines govern that gap, and both start on the day the property you are giving up transfers.

You have 45 days to identify the replacement property in writing.

You have 180 days to receive it, or until the due date of your tax return for the year of the transfer including extensions, whichever comes first.

Both periods are counted in calendar days. Weekends and public holidays are included, and neither deadline rolls forward when it lands on one. A sale that closes on a Friday before a long weekend loses those days like any other.

That second point catches people out. The 180 days is not guaranteed. An exchange that begins late in the year can run into a tax return deadline well before day 180, and the fix is usually to file for an extension. That decision needs making early, not in the final weeks.

Neither deadline bends. There is no provision for a deal that collapses on day 44, a lender that withdraws, or a survey that uncovers a problem on day 170. The IRS has at times granted extensions following federally declared disasters, but outside those specific reliefs the dates stand. Experienced exchangers build the schedule backwards from day 180 and treat the identification window as the real constraint.

How Do You Identify Replacement Property?

Identification must be in writing, signed, and delivered within the 45 days to someone involved in the exchange who is not you or a disqualified person. In practice it goes to the qualified intermediary. The property has to be described clearly enough to be unambiguous, which normally means a legal description or a street address rather than a general description of what you are looking for.

The regulations allow three approaches.

Under the three property rule you may identify up to three properties of any value and acquire any of them. This is the route most investors take.

Under the 200 percent rule you may identify any number of properties as long as their combined fair market value does not exceed twice the value of the property you gave up.

Under the 95 percent exception you may identify any number of properties of any value, but you must then acquire at least 95 percent of the total value identified. This is rarely used because the consequence of falling short is the loss of the entire deferral.

Identifications can be revoked and replaced within the 45 days, in writing and in the same manner. Once the window closes the list is fixed, and anything not on it cannot be used to complete the exchange.

Why Do You Need a Qualified Intermediary?

The single fastest way to destroy a 1031 exchange is to receive the sale proceeds. If funds reach you, or are made available to you, the transaction becomes a sale and the gain is recognised. This applies even when the money sits untouched in an account and is reinvested the following week.

A qualified intermediary, sometimes called an exchange accommodator or facilitator, exists to prevent that. The intermediary enters into a written agreement with you, takes assignment of your interest in the sale contract, receives the proceeds directly from the buyer, and later uses them to acquire the replacement property on your behalf.

Who can act in that role is restricted. Related parties and agents of the taxpayer are disqualified. That generally rules out your attorney, accountant, broker or employee, including anyone who has acted for you in those capacities within the two years before the exchange. Using a disqualified person invalidates the arrangement.

Choice of intermediary deserves more attention than it usually gets. The industry is lightly regulated at federal level, standards vary by state, and the intermediary will hold the entire proceeds of your sale for up to six months. Investors commonly look at how client funds are segregated, what fidelity bonding and errors and omissions cover is in place, and whether the firm has institutional backing. Where an intermediary defaults through bankruptcy or receivership, a specific IRS procedure may allow the gain to be reported as payments are received rather than all at once, but that is a remedy for a failure, not a substitute for choosing carefully.

What Is Boot and When Does It Create a Tax Bill?

Boot is anything you receive in the exchange that is not like-kind property. Receiving boot does not disqualify the exchange, but it is taxable to the extent of your gain, and it is the most common reason an investor who expected full deferral ends up with a bill.

Boot arises in two main ways.

Cash boot is proceeds you take out rather than reinvest. If you sell for more than you spend on the replacement property, the difference is typically taxable.

Mortgage boot is a reduction in debt. If the property you gave up carried a larger loan than the property you acquire, the relief from that debt is treated as value received. An investor who sells a property with substantial debt and buys a replacement outright may find a taxable amount where none was expected. Additional cash put into the purchase can offset mortgage boot, but the arithmetic needs doing before closing rather than after.

The practical rule most investors work to is to acquire replacement property of equal or greater value, reinvest all the proceeds, and carry equal or greater debt. Falling short on any of the three tends to produce boot. Because the calculation interacts with the loan terms on both sides, it is worth reviewing alongside the financing structure on the replacement property rather than treating it as a separate tax question.

What Happens to Depreciation in an Exchange?

Depreciation is where deferral becomes most visible over time. Over the years you hold a commercial property you claim depreciation deductions that reduce your taxable income and, at the same time, reduce your basis in the property. On an ordinary sale that accumulated depreciation is recaptured and taxed, often at a rate higher than the one applied to the rest of the gain.

In a 1031 exchange, recapture is deferred along with the capital gain. The basis of the property you gave up carries across to the replacement property, adjusted for any additional cash invested and any boot received. Your depreciation schedule on the replacement property is calculated from that carried-over basis rather than from the price you paid.

This has a consequence investors sometimes miss. Because the replacement property is depreciated from a reduced basis, the annual deduction is smaller than it would be on an outright purchase at the same price. The exchange preserves capital at the point of sale, but it also reduces the shelter the new asset provides year to year. Whether that trade favours you depends on holding period, income profile and what you intend to do with the asset, which is a question for your tax adviser rather than a general rule.

What Are the Rules for Exchanging With a Related Party?

Exchanges between related parties are permitted but carry an additional condition. Where you exchange with a related party, both sides must generally hold the properties received for at least two years. If either disposes of the property within that period, the deferral is usually lost and the gain becomes taxable in the year of the disposition.

Reporting reflects this. Form 8824 must be filed for the year of the exchange and again for each of the two following years, so the IRS can confirm that both properties are still held.

Related party covers more ground than family. It extends to entities in which you hold a controlling interest, and the rules are designed to prevent an exchange being used to shift basis between connected parties before one of them sells. Exceptions exist, including dispositions caused by death or by involuntary conversion, but the two year rule is the default expectation.

What Other Types of 1031 Exchange Are There?

Everything above describes a standard deferred exchange, where you sell first and buy afterwards. That is the structure most commercial investors use. Two variations exist, and both carry extra requirements beyond the ones covered here.

A reverse exchange runs the other way round. You acquire the replacement property before selling the property you are giving up, which is useful when the asset you want will not wait. Because you cannot own both properties at once and still qualify, the new property is parked with an exchange accommodation titleholder under a qualified exchange accommodation arrangement. The IRS set out the safe harbour for this in Revenue Procedure 2000-37, as modified by Revenue Procedure 2004-51. One restriction worth noting is that property you owned yourself within the 180 days before it was transferred to the titleholder cannot be treated as replacement property.

An improvement exchange, sometimes called a build-to-suit exchange, lets you use exchange proceeds to fund construction or renovation on the replacement property. The constraint is timing. Improvements have to be completed and in place before you take title, inside the same 180 day window, because value added after you receive the property does not count towards the exchange.

Both structures are more complex and more expensive to run than a standard deferred exchange, and both still sit inside the 180 day limit. They are worth knowing about, but neither is something to attempt without a tax adviser and an intermediary experienced in that specific structure.

How Do You Report a 1031 Exchange?

A completed exchange is reported on IRS Form 8824, filed with your tax return for the year in which you transferred the property you gave up. The form captures the dates that prove you met the 45 and 180 day deadlines, the values on both sides, any boot received, the realised gain, the portion recognised, and your basis in the replacement property.

Keep the supporting documentation. The written identification and its delivery date, the exchange agreement with the intermediary, and the closing statements on both transactions are the evidence that the exchange qualified. The deadlines are matters of fact, and the paperwork is what establishes them.

One structural point is worth flagging before you plan around an exchange. A 1031 exchange defers tax on a property you are selling. It is not the same as an opportunity zone investment, which has its own timing rules and its own reliefs, and the two are not interchangeable. Which route suits a given disposal depends on the gain, the timing and the asset you intend to acquire.

This article is general information about how section 1031 works. It is not tax advice, and the consequences of an exchange turn on facts specific to the investor and the properties involved. Anyone considering an exchange should take advice from a qualified tax professional before the first property transfers, because almost none of the requirements can be fixed afterwards.

Frequently Asked Questions

Can you do a 1031 exchange on a property you are still paying off?

Yes. A mortgage on either property does not prevent an exchange. What matters is that the debt on the replacement property is equal to or greater than the debt released on the property you gave up, or that you make up the difference with additional cash. A fall in debt that is not replaced is treated as mortgage boot and is taxable.

How many times can you use a 1031 exchange?

There is no limit. Investors routinely move through a series of exchanges over many years, deferring the accumulated liability each time. The deferred tax continues to attach to each replacement property through the carried-over basis until an eventual sale is made outside an exchange.

What happens if you miss the 45-day deadline?

The exchange fails and the sale is treated as an ordinary taxable disposal in the year the property transferred. There is no partial credit for identifying late. This is why most investors line up candidate properties before marketing the asset they intend to sell rather than beginning the search once the clock has started.

Can you exchange one property for several, or several for one?

Yes, in both directions. Consolidating several smaller assets into one larger property, or breaking a single property into several, are both common. The identification rules still apply to the full set, so an investor acquiring multiple replacement properties needs to watch the three property and 200 percent limits.

Does a 1031 exchange work for a property you intend to move into later?

This is a grey area and depends heavily on facts. The property must be acquired and held for investment or business use, and converting it to personal use afterwards can affect the treatment of the original exchange. Intention at the time of acquisition matters, and so does how long the property is genuinely held for investment. It is a situation that warrants specific professional advice rather than a general answer.

Is there a minimum holding period before you can exchange a property?

The code does not set a fixed period. The test is whether the property was held for productive use in a trade or business or for investment, which is a question of intent and facts rather than a number of months. Short holding periods invite scrutiny because they suggest the property was held for resale, which does not qualify.