Is it too late to start a 1031 exchange if I close this week or already closed?

Three documents must exist before the deed passes, and all three can be signed on closing day

Reg. §1.1031(k)-1(g)(4) makes an intermediary qualified when it enters a written agreement with you and is treated as selling your property, which it can do if your rights under the sale contract 'are assigned to the intermediary and all parties to that agreement are notified in writing of the assignment on or before the date of the relevant transfer.' That yields three papers, the exchange agreement, the assignment and the notice to the buyer, plus revised settlement instructions so the closer wires the net proceeds to the QI.

None of them needs the buyer's consent, and none needs a cooperation clause in the contract, although one helps (exchange cooperation clause). 1031 CORP's FAQ says that if the seller decides 'even as late as at the closing table, contact us immediately and we can usually make the exchange work', and the Federation of Exchange Accommodators confirms an exchange can still be set up as long as title, or the benefits and burdens of ownership, have not transferred.

What the QI will ask you for, and how a same-week file is opened, is in what the qualified intermediary needs; what it does at the table is in does a 1031 delay my closing.

Where the money lands decides it: you, your attorney or an ordinary escrow is receipt

Under Reg. §1.1031(k)-1(f)(2) you are in constructive receipt when money is credited to your account, set apart for you, or otherwise made available to draw on, and paragraph (a) treats a transfer in which you receive the full consideration before like-kind property as a sale. An escrow qualifies as a safe harbor only if the holder is not a disqualified person and the agreement expressly limits your right to receive, pledge, borrow or benefit from the cash (paragraph (g)(3)).

Your closing attorney fails the first test: paragraph (k) makes anyone who has acted as your attorney or accountant within the two years before the closing a disqualified person, so proceeds parked in that attorney's trust account are yours for tax purposes (can my attorney or CPA be my QI). Asset Preservation's pitfalls list says the same of any 'escrow or trust account for the benefit of the taxpayer'.

The FEA draws the line at the closing itself: 'Once the closing occurs, it is too late to take advantage of a Section 1031 tax-deferred exchange (even if the taxpayer has not cashed the proceeds check).' Whether an undisbursed wire sitting with the title company can still be captured depends on whether the transfer has legally closed, so call a QI before anything is disbursed and read buyer wires to the title company instead of the QI.

Closing-week timeline: contract signed September 1, exchange opened September 24, deed on September 26

Hypothetical. You learn about 1031 on Tuesday, September 22, 2026, four days before a Friday closing; on Wednesday you pick a QI and send it the contract, the title company's contact and the closing date (choosing a safe QI). On Thursday you sign the exchange agreement and assignment, the QI sends the buyer the notice and gives the closer its wiring instructions, and on Friday the settlement statement shows the net proceeds going to the QI rather than to you.

From a September 26 transfer, day 45 is November 10, 2026 and day 180 is March 25, 2027, inside the April 15 return due date, so no extension is needed to use the full period (when the 45-day clock starts). Because the sale is in 2026 and the exchange period runs into 2027, a failure would be taxed in 2027 by default (the release-and-tax-year question).

• Do not accept a cheque or a wire in any amount at closing; a payment to you is boot even if the rest goes to the QI (deposits and early releases).
• Have the closer re-issue the settlement statement showing the QI as payee of the net proceeds.
• Ask the QI to confirm in writing that the notice reached the buyer before the deed was delivered.
• Start the replacement search the same day; the 45-day window opens at the transfer, not when you feel ready.

Already closed: the sale is taxable, and here is what still works

If the deed has passed and the money is in your account, no document can turn the sale into an exchange, and buying a replacement next month does not help (1031 on a property I already bought). The gain is reported on Form 4797 or Schedule D for the year of the sale, with the tax layers set out in what a taxable sale costs.

Two tools survive a cash closing. §1400Z-2(a)(1) allows the gain, not the whole proceeds, to go into a qualified opportunity fund during the 180-day period that begins on the sale date; for investments made after December 31, 2026 the deferred gain returns at the earlier of sale or five years with a 10% basis step-up (30% for a rural fund), while a fund investment made in 2026 must include the gain by December 31, 2026 under the older rule. A bonus-depreciation fund closed before the same December 31 can set a first-year passive loss against the passive gain, and Pub. 946 puts the special allowance back at 100% for qualified property acquired after January 19, 2025.

Neither is a 1031 and each has its own risks and paperwork; the order of operations is in our Plan B guide, and the products in opportunity zone funds and bonus depreciation funds. Have your CPA or attorney confirm the 180-day date from your own closing statement before you commit.

Next time: the exchange should be set up before you list, not the week you close

The closing-week rescue works, but it forces you to find replacement property in 45 days with no head start. Set the exchange up when you sign the listing, put a cooperation clause in the contract, and line up a DST or direct-title interest as a backup before the buyer's inspection period ends (pre-sale checklist).

Breakwater Exchange, a 1031 exchange broker licensed across all 50 states inside a regulated broker-dealer framework, can show you DST offerings that are open today, so a seller who reaches us on closing week has something concrete to identify by day 45.