A 1031 exchange is one of the most choreographed fund-flow events in U.S. real estate law. The tax benefit — deferring capital gains on the sale of investment property — is real and substantial. But that benefit lives or dies on precisely who holds the money, when they hold it, for how long, and to whom they release it. Miss any one of those variables and the deferral collapses entirely, leaving the exchanger with an immediate tax bill.
This article is written for the professionals who sit at the center of that choreography: settlement agents, closing attorneys, escrow officers, title companies, and qualified intermediaries (QIs). The flow of funds in a 1031 exchange runs through your hands, your wire instructions, and your documentation. Understanding the mechanics at a granular level is what separates a clean, compliant exchange from an expensive mistake.
Deadlines run from Day 0, the closing of the relinquished property; each figure is detailed in the sections below.
The legal architecture that governs every dollar
Before tracing the path of money, it helps to understand the legal concept that governs everything: constructive receipt. A key requirement of a successful 1031 exchange is avoiding actual or constructive receipt of funds from the sale of the relinquished property. Constructive receipt occurs when the taxpayer has control of or rights to the funds, even indirectly.
This is not a technicality. An investor must not take constructive receipt of the proceeds from the sale of the relinquished property. If an investor were to receive any money — such as a wire from escrow to their bank account, or even an uncashed check with the closing proceeds — that capital becomes irreversibly taxable.
The entire structure of a 1031 exchange — the QI, the exchange agreement, the contract assignments, the wire sequencing — exists to ensure that the exchanger never crosses that line. To prevent constructive receipt, a QI establishes a "safe harbor" exchange, shielding taxpayers from constructive receipt through an agreement that restricts their access to proceeds during the exchange. This safeguard offers significant value by supporting compliance while reducing uncertainty.
The four exchange structures and why they change the fund flow
There are four main types of like-kind exchanges: simultaneous exchange, delayed exchange, reverse exchange, and construction or improvement exchange. Each structure routes money differently. Knowing which structure is in play before you touch the closing paperwork is essential.
Delayed exchange is by far the most common. The delayed exchange accounts for over 90% of all 1031 exchanges because it gives investors 45 days to identify and 180 days to close on replacement properties. In a delayed exchange, the relinquished property closes first, funds move to the QI, and the QI holds them until the replacement property is ready to close. This article focuses primarily on this structure, because it is where the multi-party fund flow is most complex — and where most errors occur.
Simultaneous exchange is rare. In a simultaneous exchange, the relinquished property is sold and the replacement property is acquired on the same day. This type of exchange is rare due to the logistical challenges of coordinating the sale and purchase simultaneously. When both legs close on the same day, the QI must still stand between the exchanger and the proceeds — no funds touch the exchanger's account at any point.
Reverse exchange flips the sequence. In a reverse exchange, the replacement property is acquired before the relinquished property is sold. This type of exchange is more complex and requires careful planning and coordination, as the taxpayer must purchase the replacement property with their own funds or secure financing before selling the relinquished property. Because title cannot sit with the exchanger during the holding period, a third-party Exchange Accommodation Titleholder (EAT) temporarily holds the replacement property until the relinquished property closes. Because the exchanger cannot simultaneously hold title to both properties, a third-party Exchange Accommodation Titleholder temporarily holds the new property until the original property is sold.
Improvement (build-to-suit) exchange uses exchange proceeds to fund construction on or improvements to the replacement property while title sits with an EAT. A construction or improvement exchange allows taxpayers to use 1031 exchange funds to make improvements or construct new structures on the replacement property, paying for construction costs or reimbursing the taxpayer for improvements within strict timelines set by the IRS.
The cast: who sits in the fund-flow chain
Before tracing the dollars, identify every party who touches, instructs, or receives the money:
- The exchanger — the taxpayer whose capital gains deferral is at stake. They must never directly receive proceeds.
- The buyer of the relinquished property — typically a third party with no exchange obligations, but whose wire timing matters enormously.
- The seller of the replacement property — the party who ultimately receives the exchange proceeds at the second closing.
- The qualified intermediary (QI) — the central fund-holding and document-management party.
- Settlement agents / closing attorneys / escrow officers — the professionals who execute closings on both ends, prepare settlement statements, coordinate wire instructions, and ensure the document trail is clean.
- Title companies — title companies often play a supporting role in this process, handling escrow, conducting title searches, and working with a qualified intermediary to ensure that the transaction closes properly. While not responsible for compliance, their coordination is often essential for a successful exchange.
- Real estate attorneys — real estate attorneys provide critical legal guidance, helping clients understand the requirements and risks involved in a 1031 exchange. Attorneys review contracts, advise on state-specific rules, and ensure compliance with both federal and local regulations.
Each party has a defined moment in the fund flow. The money moves linearly — but each handoff carries legal weight.
Step one: Before the relinquished property closes
The QI must be engaged before the relinquished property closes. A 1031 exchange must be structured before the original property closes. Once the sale has been completed and proceeds are received, the opportunity to complete a tax-deferred exchange is usually lost.
This is a hard deadline that settlement agents need to enforce with their clients. If a seller mentions a 1031 exchange after the closing has already occurred, it is too late.
Once the QI is engaged, several documents are executed before Day 0:
- A purchase agreement with a 1031 cooperation clause — allowing the contract to be assigned to a qualified intermediary.
- An exchange agreement — the agreement between the investor and the qualified intermediary outlining how the exchange will be structured.
- An assignment of contract — transferring the seller's interest in the purchase agreement to the qualified intermediary — and a notice of assignment, providing written notice to the buyer that the contract has been assigned as part of a 1031 exchange.
The QI will provide closing instructions to the title company — a letter that gives the closing agent detailed instructions about preparing documents for the closing, and includes wire instructions so that the funds can be wired directly to the QI's exchange account.
The settlement agent's job at this stage: confirm that the closing instructions from the QI are received and reviewed, and that the settlement statement reflects zero proceeds flowing to the exchanger. The settlement statement will reflect that no money is being sent to the exchanger. Instead, the sale proceeds will be shown as "Exchange Proceeds" on the settlement statement and sent to the QI by the closing agent.
Step two: The relinquished property closes — Day 0
This is the moment the clock starts. The sale closing is considered Day 0 for counting purposes. The following day is Day 1. This is when the real countdown begins, and every calendar day counts, including weekends and holidays.
At closing, the buyer's funds clear through the title company or settlement agent in the normal way. What changes is the destination of the net proceeds. The QI enters into an exchange agreement with the exchanger before closing. At closing, the sale proceeds transfer directly from the title company to the QI's exchange account.
The QI works closely with the closing agent, escrow officer, or title company, providing detailed written instructions to ensure the transaction is documented specifically as a 1031 exchange rather than a standard taxable sale. This distinction on the settlement statement is not cosmetic — it is part of the IRS compliance record.
The QI will review the closing statements in advance of the settlement date, carefully checking the numbers to verify that all exchange funds are routed correctly and that no non-allowable expenses accidentally trigger a taxable event.
Once the wire lands with the QI, a reputable intermediary holds exchange funds in a segregated account at a highly rated bank until the replacement property is acquired. The funds should never be co-mingled with the intermediary's operating funds or the funds of other clients.
Scenario: a $2.4 million relinquished property sale
Consider a concrete example. An investor sells a commercial warehouse in Phoenix for $2,400,000 USD (roughly $3,720,000 AUD at current rates). The property carries an outstanding mortgage of $800,000. After paying off the mortgage and allowable closing costs — real estate commission, transfer taxes, attorney fees, and the QI's engagement fee — the net exchange proceeds wired to the QI amount to approximately $1,500,000 USD (~$2,325,000 AUD).
That $1,500,000 sits in a segregated exchange account, tied to the exchanger's tax identification number, from the moment the wire settles. The exchanger has no access to it. The QI now holds it under the terms of the exchange agreement. Day 0 has begun.
Step three: The 45-day identification window
When doing a 1031 exchange, two important deadlines must be met. First, exchangers have 45 calendar days to identify up to three replacement properties from the date of closing on their relinquished asset. Second, exchangers must close upon one or more of those assets within 180 calendar days from the date of closing on the relinquished property.
There are no extensions granted for weekends, holidays, or unforeseen circumstances.
The identification must be specific and unambiguous, in writing, signed by the exchanger, and delivered to the qualified intermediary or another party to the transaction. Allowable recipients of the identification notice include the seller of the replacement property or the settlement agent. Delivery to the exchanger's attorney or broker would not qualify, since those parties are agents of the exchanger.
The list of identified potential replacement properties cannot be changed after the 45th day; the exchanger may only acquire from the list of identified properties.
No money moves during the identification window unless the exchanger closes on a replacement property within those 45 days — which is uncommon but permitted. If no property is identified by day 45, the exchange funds will be returned to the exchanger after the 45th day.
For settlement agents and closing attorneys coordinating the replacement-property side, this window is where pre-closing preparation begins. The QI must receive a copy of the replacement property purchase contract and execute a new assignment before the replacement closing can proceed.
Step four: The replacement property closing — before Day 180
Acquisition of the replacement property must be completed by the earlier of the 180th day after transfer of the first relinquished property, or the due date (including extensions) for filing the exchanger's tax return.
The fund-flow mechanics at the replacement closing are the mirror image of the relinquished closing. Once the qualified intermediary receives a copy of the contract to purchase the replacement property, the required assignment of contract, notification of assignment, and instructions to the settlement agent or attorney are prepared. Prior to settlement, the qualified intermediary wires the exchange escrow funds to the settlement agent or attorney.
Once it is time to close on the purchase, both the exchanger and the QI will review and sign a copy of the settlement statement. The qualified intermediary will need to send the exchange funds it is holding from the sale of the relinquished property to make the purchase of the replacement property. It is important to notify the QI at least a day in advance of closing to request the exchange funds. The QI can arrange for a wire transfer of the exchange funds or a bank check to make the purchase.
At closing, the QI transfers the 1031 exchange funds to the seller of the replacement property, and the exchanger then takes title ownership of the replacement property.
Scenario continued: closing the replacement
Returning to our $1,500,000 USD (~$2,325,000 AUD) exchange. The exchanger identifies a multi-family apartment building in Austin on Day 38 and goes under contract. The QI receives the purchase contract, prepares the assignment, and notifies the settlement agent.
The exchanger is bringing additional funds from outside the exchange (new financing and personal cash) to make up the difference above the exchange proceeds:
| Funds at the replacement closing | USD | AUD |
|---|---|---|
| Exchange proceeds wired by the QI | $1,500,000 | ~$2,325,000 |
| Additional funds from outside the exchange | $450,000 | ~$697,500 |
| Replacement property purchase price | $1,950,000 | ~$3,022,500 |
The QI wires the exchange proceeds to the settlement agent the morning before closing. The settlement agent combines that wire with the exchanger's supplemental funds, pays the seller, records the deed, and the exchange is complete. The exchanger takes title. The QI's role ends.
The boot problem: when funds go the wrong direction
Not every exchange closes cleanly. When exchange proceeds aren't fully reinvested, the excess is called boot — and it is taxable to the extent of realized gain.
If the investor receives cash or other non-like-kind property during the exchange, that portion may become taxable. This is commonly referred to as "boot."
Boot can arise in multiple ways that settlement agents and attorneys need to watch:
Cash boot: In a deferred exchange, gain can be recognized if the exchanger actually or constructively receives money or other property before they receive like-kind replacement property. In plain terms, if cash is pulled out of the exchange, that cash is generally taxable boot to the extent of gain.
Mortgage boot: If the exchanger paid off a loan on the relinquished property and takes on less debt on the replacement property, the reduction can create taxable boot unless cash is added to make up the difference.
Proration and credit boot: A common planning move is to review the settlement statement line by line with the intermediary and CPA to avoid accidental boot created by credits, prorations, or non-exchange expenses.
After the qualified intermediary receives the settlement statement for the final replacement property, they may pay any interest that has been earned and return any excess escrow funds. That returned amount — whatever was not deployed into replacement property — is boot, and the exchanger's CPA will need to account for it on Form 8824.
Settlement agents who review the closing disclosure before the closing date and flag any credits, prorated rents, or unallocated expenses do their clients a material service. Surprises on closing day cannot always be corrected in time.
The disqualified-person rule and why it shapes every party's role
Not everyone can serve as a QI. The IRS imposes strict independence requirements. To meet the legal definition of a qualified party, the intermediary must be completely independent. The party must not be the actual taxpayer, an employee of the taxpayer, or a close relative. Furthermore, the IRS restricts anyone who has acted as the taxpayer's agent within the two years preceding the exchange. This means the current accountant, attorney, real estate professional, or financial advisor cannot serve as the QI.
The practical implication: a closing attorney who has represented an exchanger on prior deals cannot step into the QI role for that same client. This rule is designed to prevent any relationship that might give the taxpayer "constructive receipt" or indirect control over the exchange funds.
That said, companies offering routine financial, title insurance, escrow, or trust services for the investor are not disqualified from serving as the QI in a 1031 exchange — meaning a title company that has not specifically acted as the exchanger's agent can, in some circumstances, structure itself as the QI. But most practitioners use independent QI firms to avoid any ambiguity.
Settlement agents must also be vigilant about disbursing funds only according to the QI's instructions. A settlement agent who wires closing proceeds to the exchanger's personal account — even by mistake, even briefly — may have just triggered a taxable event that cannot be undone.
What happens to funds if the exchange fails
If the exchanger fails to identify a replacement property within 45 days, or fails to close within 180 days, the QI returns the funds. Any unused exchange funds will be returned to the exchanger at termination of the exchange. Those returned funds are treated as proceeds received by the exchanger, and the full capital gains tax liability becomes due.
This is why both deadlines are set by statute, so the IRS cannot grant routine extensions — the narrow exception is federally declared disaster relief when the IRS issues specific guidance. This is why investors line up replacement candidates before they close the sale.
For QIs and settlement agents: a failed exchange is not just a client disappointment. It is a taxable event, and the documentation of exactly when funds moved and why will be scrutinized. Maintaining meticulous records of every wire confirmation, settlement statement, and assignment notice is not optional — it is the professional standard.
The coordination problem: why the fund flow breaks down in practice
Most 1031 exchanges that go wrong don't fail because of bad intent. They fail because of coordination gaps between the multiple professionals involved. Consider the most common failure points:
Wire timing misalignment. In instances where funds from a relinquished property are processed on the same day and the wire transfer isn't initiated on time, a delay could disqualify the exchange. The IRS may view the exchanger as taking receipt of the 1031 fund, which would likely void the exchange and leave the exchanger with a significant tax liability.
Late QI engagement. Setting up a QI account the day before — or even the same day — of a closing increases the risk that the close of escrow may be delayed, or that the escrow company may revert to sending the proceeds to the investor instead of to the QI.
Settlement statement errors. If the settlement statement at the relinquished closing incorrectly shows proceeds flowing to the exchanger, the paper trail creates a constructive receipt argument even if the wire itself went to the QI. The statement and the wire must tell the same story.
Inadequate replacement closing lead time. Real estate closings can be complex, and adding a 1031 exchange requires flawless coordination. The QI works closely with the closing agent, escrow officer, or title company, providing detailed written instructions to ensure the transaction is documented specifically as a 1031 exchange rather than a standard taxable sale. Replacement closings require the QI to execute a new set of assignments and notices before funds can be released. Scheduling the replacement closing without giving the QI adequate lead time — typically at least one business day, often more — creates unnecessary pressure.
Multiple replacement properties. An exchanger who acquires two or three replacement properties under the three-property rule must coordinate a separate closing, separate QI fund release, and separate settlement statement for each acquisition — all within the 180-day window. Each closing is an independent fund-flow event requiring its own instructions.
The settlement agent's practical checklist at each closing
For the settlement agent coordinating either leg of a delayed exchange, the following is the minimum documentation and fund-flow verification that should occur:
At the relinquished-property closing:
- Confirm the QI's wire instructions are in hand before the closing date.
- Confirm the settlement statement reflects zero proceeds to the exchanger and labels the outgoing wire as "Exchange Proceeds."
- Wire net proceeds to the QI's segregated account — not to any personal or attorney trust account of the exchanger.
- Retain wire confirmation and a copy of the executed settlement statement as part of the exchange file.
At the replacement-property closing:
- Confirm receipt of the QI's written disbursement authorization before the closing date.
- Confirm the settlement statement lists the QI as buyer or co-buyer and the exchanger as the beneficial acquirer.
- Receive the QI's incoming wire before releasing seller proceeds — don't close on the expectation that the wire is incoming.
- Retain all assignment documents, notices, and wire confirmations.
1031 exchanges offer significant tax advantages for real estate investors, but their benefits can only be realized through strict compliance with IRS regulations and careful coordination among all parties involved. Settlement agents and real estate attorneys are at the forefront of ensuring these transactions proceed smoothly and successfully.
Form 8824 and the paper trail that closes the loop
The fund flow doesn't end at the replacement closing. As part of the tax return for the year that the relinquished property was transferred, the exchanger will report the exchange on IRS Form 8824, Like-Kind Exchange.
Form 8824 requires the exchanger to document: the date the relinquished property was transferred, the date the replacement property was acquired, the fair market value of both properties, any boot received or paid, and the resulting deferred gain. Every number on that form traces back to settlement statements, wire records, and QI documentation that the professionals in the exchange chain produced.
This is why professional-grade documentation discipline pays dividends long after closing day. The QI, the settlement agent, and the closing attorney are the source of truth for the tax preparer completing Form 8824. Incomplete records mean estimates; estimates mean IRS exposure.
Where onchain settlement fits into this workflow
The 1031 exchange structure is built around one foundational challenge: ensuring that money moves between specific, identified parties in a specific sequence, with a documented, irreversible trail. Every procedural requirement — the QI, the exchange account, the assignment notices, the settlement statement labeling — exists to produce certainty about who held the money, when, and for how long.
That is also precisely the problem that onchain payment routing is designed to solve. A tool like shaka.deal functions as a non-custodial routing layer on Ethereum: one incoming payment, preset distribution shares, simultaneous release to all designated recipients, with settlement that is final from the moment the transaction confirms. It routes; it never holds.
In the context of a 1031 exchange, the application is clearest at the replacement closing. When the QI releases exchange proceeds to the settlement agent, and the settlement agent must in turn disburse to the seller, any lender payoffs, prorations to the exchanger's attorney, and title fees simultaneously, the coordination risk is real. Onchain routing allows those disbursements to be structured as preset shares in a single transaction — so the seller receives their proceeds, the title company receives its fee, and the attorney receives their disbursement in one settlement event rather than a sequence of sequential wires, each of which can fail, arrive late, or be misapplied.
For settlement agents and closing attorneys who manage high-volume commercial transaction flow, the certainty of simultaneous, final settlement is not a luxury — it is the difference between a clean exchange and an error that triggers a tax event. The 180-day clock does not stop for a failed wire.
Onchain settlement also produces a permanent, immutable record of every disbursement — which maps cleanly onto the documentation requirements for Form 8824 and any subsequent IRS inquiry. Every party in the fund flow can verify, in real time, that their allocation settled correctly. No waiting for the settlement agent's reconciliation call. No day-end confirmation email.
This is not about removing the professionals who run these closings. The QI, the settlement agent, the closing attorney, and the title company are indispensable — their judgment, their legal expertise, and their coordination are what make the exchange compliant. What onchain routing offers is a settlement layer that matches the speed and finality those professionals are already trying to achieve, without the friction and counterparty risk of chained bank wires.
The bottom line for professionals in the exchange chain
A 1031 exchange is, at its core, a fund-flow compliance exercise. The tax benefit is real and the rules are strict, but neither of those facts makes the work mysterious. What makes exchanges succeed or fail is the quality of coordination among the professionals who handle the money at each stage.
The exchanger cannot touch the proceeds. The QI must hold them in a segregated, independent account. The settlement agent must wire correctly at both closings. The attorney must ensure the contracts, assignments, and notices are in order before any money moves. The title company must document the closing in a way that leaves no ambiguity about the exchange character of the transaction.
When every party understands their moment in the fund-flow sequence — and executes it with precision — the exchanger defers their capital gains, rolls their equity forward, and the entire professional team delivers real value. That outcome is achievable. It requires discipline, lead time, and a shared understanding of exactly how the money moves.
