What is a 1031 exchange?

What you are trading, and what you are keeping

A 1031 exchange is a tax-deferral mechanism specific to investment real estate. The structure is straightforward: sell investment property, reinvest the proceeds into replacement property, and the federal capital gains tax that would have been due at sale is deferred. The dollars that would have left for the IRS stay in service of the next acquisition.

The value is in the compounding. An investor selling a property for $4M against a $2M basis carries roughly $2M of taxable gain. At combined federal capital gains and depreciation recapture rates, the bill at sale commonly lands in the high six figures. Our 1031 exchange calculator runs the realized gain, deferred gain, and taxable boot math on your own numbers in a few seconds. Exchanging keeps those dollars working. Across a long enough holding period and a handful of exchanges, the gap between an investor who defers and one who recognizes at every sale is meaningful, and it is why practiced real estate investors stack exchanges across decades.

Deferral is not forgiveness. The relinquished property's basis carries forward into the replacement, and the deferred gain becomes taxable when the replacement is sold outside an exchange. The well-used paths investors take to manage the eventual recognition:

• Hold into a step-up at death. Heirs take a stepped-up basis to fair market value at the date of death, and the deferred gain effectively disappears at the generational handoff.
• Exchange into a passive vehicle. A Delaware Statutory Trust (DST) lets an investor roll out of active management into a fractional interest in institutional-quality real estate while preserving 1031 treatment.
• Continue exchanging. Each subsequent exchange defers again. Investors often work through several deal cycles this way before any recognition event.

Two pieces of vocabulary the rest of this post uses:

• Relinquished property: the property you sell.
• Replacement property: the property you acquire with the exchange proceeds.

The deal calendar in the order you will live it

The steps below run in the order an exchange actually unfolds.

Pre-sale: engage the qualified intermediary

The single most common way a 1031 exchange dies happens before the sale even closes: the taxpayer takes constructive receipt of the proceeds. The fix is structural. A qualified intermediary (QI) sits between the taxpayer and the cash for the entire window.

Engage the QI before the relinquished sale closes. The QI prepares the exchange agreement, the assignment of the sale contract, and the direction-of-funds language that routes proceeds away from the taxpayer's account at closing. After closing, this paperwork cannot be backdated. A late QI is no QI.

QIs are not regulated at the federal level. The wrong QI is a single point of failure: they hold material exchange proceeds for up to 180 days. Vet them like a counterparty, not a vendor. Bonding, segregated accounts, errors-and-omissions coverage, length of operating history, and references from CPAs and exchange attorneys are the usual signals.

Sale day: the clock starts

At closing on the relinquished property, the QI receives the net proceeds via the closing agent. The deed transfers, the buyer takes title, and the day the deed records is day zero of the exchange.

From day zero, two deadlines run in parallel:

• 45 calendar days to deliver a written identification of the replacement property (or properties, under the formal identification rules) to the QI.
• 180 calendar days to close on the replacement property.

The windows are not extended for weekends, holidays, financing delays, due diligence surprises, title issues, or seller-side foot-dragging. A federally declared disaster in the affected zone is the only material exception. If day 180 falls on a Sunday, day 180 is still the deadline.

There is also a tax-filing constraint that catches investors who close late in the year: the replacement must close before the earlier of day 180 or the due date of the taxpayer's return for the year of the exchange, including extensions. A relinquished closing in late October can compress the working window to roughly the calendar-year boundary unless the return is extended.

Days 1 through 45: the identification window

This is the window where most exchanges go wrong, but not because the rule is hard. The rule is mechanical: deliver a signed, unambiguous written notice to the QI within 45 days identifying replacement candidates under one of three IRS identification rules.

• Three-Property Rule. Identify up to three properties, regardless of total value. The most common path.
• 200% Rule. Identify more than three properties, provided the aggregate fair market value of the identified list does not exceed 200% of the relinquished property's value.
• 95% Rule. Identify more than three properties exceeding 200% of the relinquished value, and actually close on at least 95% of the identified value. Rarely used; one missed closing destroys the exchange.

The rule is mechanical. What is hard is finding three properties worth identifying in 45 days. The next section gets into that.

Days 46 through 180: closing the replacement

Once the list is locked at day 45, the taxpayer can only close on properties already on the list. After day 45 the only flexibility is which of the identified properties to close on, not which properties to consider.

The replacement closing is structurally similar to the sale: the QI holds the proceeds, the QI funds the purchase, the deed records in the taxpayer's name. The taxpayer needs to deliver any additional cash required (boot, closing costs, lender fees) outside the exchange account. The replacement must be at least equal in value and in debt relief to the relinquished, or the difference is recognized as boot.

Plan the replacement closing inside day 180, not against it. Title issues that would take 20 days to clear on a standard purchase have to clear in the days you have left. A replacement closing scheduled for day 178 with no buffer is a deal at the edge of the cliff.

Like-kind, in working terms

For a real estate property held for investment or productive use in a trade or business, the like-kind requirement is broad. Almost any investment-use US real estate exchanges for almost any other investment-use US real estate. The constraint is the intent of holding, not the asset class.

A multi-tenant retail strip exchanges for a net-leased single-tenant property. Raw investment land exchanges for an industrial flex building. An apartment building exchanges for a fractional interest in a larger asset structured as a Delaware Statutory Trust. A long-term leasehold (30+ years) exchanges for a fee interest. None of these combinations are exotic.

Three exclusions are worth memorizing because they catch investors who assume "real estate" is enough:

Primary residences are out. A property used as the taxpayer's primary residence does not qualify under Section 1031. The Section 121 exclusion ($250k / $500k of gain) is the parallel mechanic for owner occupancy. The two regimes can interact in mixed-use cases (one unit of a duplex rented, one owner-occupied) but only the investment portion is exchange-eligible.

Vacation property needs the rental safe harbor. Revenue Procedure 2008-16 lays out the test: at least 24 months of ownership before the exchange, with each of the two 12-month periods showing at least 14 days of fair-market rental and personal use no greater than the larger of 14 days or 10% of rental days. The same tests apply after the exchange for a replacement vacation property. A second home that fails this test is treated as personal-use property.

Personal property has been out since 2018. The Tax Cuts and Jobs Act of 2017 limited Section 1031 to real property. Equipment, vehicles, artwork, and intangibles are no longer exchange-eligible. The pre-2018 transition rules are not relevant to any sale closing today.

Title and entity traps worth flagging before the sale

The taxpayer who sells the relinquished property must be the same taxpayer who acquires the replacement property. "Same taxpayer" is read strictly: an LLC that sells must be the LLC that buys; a joint-titled property must take title in the same form on the replacement.

A few configurations that catch investors mid-exchange:

• Single-member LLC. Treated as a disregarded entity for federal tax purposes. The member can sell as the LLC and buy in their own name (or vice versa) without breaking the exchange.
• Partnerships and multi-member LLCs. The entity is the taxpayer, not the individual partners. A partner cannot exit by taking their share of proceeds and rolling them into a separate replacement property. The "drop and swap" pattern attempts to convert partnership interests into tenancy-in-common interests before the sale; it works in some jurisdictions, requires careful sequencing, and benefits from time the partnership rarely has if the question comes up close to closing.
• Trusts. Revocable trusts generally pass through to the grantor. Non-grantor irrevocable trusts are typically separate taxpayers. Trust classification matters and is not always obvious.

If the title structure on the relinquished property is anything other than a clean single owner or single-member LLC, get a tax adviser into the deal before the sale contract is signed, not after. Restructuring during the 45-day window is structurally hard and frequently disqualifying.

The four ways a 1031 exchange dies

The deadlines are public. The identification rules are mechanical. What actually kills exchanges, in our experience working with buyers and brokers, falls into four patterns. None of them are obscure.

1. Constructive receipt of proceeds. The taxpayer touches the cash, even briefly, even by direction. Sale proceeds wire to the taxpayer's account instead of the QI's. The closing agent is not notified about the exchange and routes the funds as a normal sale. The taxpayer accepts a "convenience" wire and intends to forward it to the QI. Each of these ends the exchange immediately. The fix is upstream: engage the QI before the sale contract, make sure the closing agent has the exchange paperwork, and confirm wire instructions point at the QI before the closing date.

2. Weak identification. A vague or oral identification, an unsigned list, an identification delivered to the wrong party, or a list that fails the chosen identification rule. The IRS treats the identification rules as bright lines. "I am pretty sure I told the broker about three properties" is not an identification. Deliver a signed written list to the QI inside day 45, every time.

3. Replacement closing slips past day 180. Typically driven by financing surprises, title issues, or seller delay. Investors who plan the replacement closing for day 165 with a clean target and a clean title have time to absorb a 10-day surprise. Investors who plan for day 178 do not.

4. Replacement property that does not actually qualify. A property closer to personal use than investment use; a property acquired through a related-party transaction that fails the related-party hold rule; a property the taxpayer's intent makes hard to defend (a rapid post-acquisition resale to a developer, for example). Qualifying intent is judged on the facts at the time of acquisition. Document the investment purpose contemporaneously.

The fixes for all four are pre-closing. Once the exchange is in motion, the recovery options narrow fast.

The inventory problem the textbook overviews skip

The four failure modes above are operational. The fifth thing that kills exchanges does not appear in the IRS rules at all, and it is the failure pattern Exchango is built around: buyers cannot identify three properties worth identifying inside 45 days because the inventory they need is not on the public market.

By the time a property is listed publicly, it has typically been worked by the listing broker's relationship network for weeks. The properties that fit a credible 1031 buyer's criteria (the right asset type, the right geography, the right price tier, with a workable closing timeline) tend to move inside that pre-market window. A buyer looking for Texas retail inventory, for example, will find that most of the credible deals are already worked privately by the time anything reaches the public sites. The buyer competing only on what is publicly listed is fishing in a shallow pool against the clock.

The standard advice is "build relationships with brokers in your target market." That advice is correct and slow. A 1031 buyer with a 45-day window does not have time to build the relationship before the clock runs out. The buyers who close clean are the ones whose criteria were already in front of the relevant brokers when the clock started.

Exchango exists to close that gap. A verified buyer posts the exchange profile once (legal entity, dates, equity, target asset type, geography, lender pre-qualification). An Exchango admin reviews the 1031 document. Every broker in the relevant network holding matching pre-market inventory sees the profile the same day. The buyer's existing relationships keep working as they did before. The platform covers the brokers and the properties the buyer has not met yet.