When does the QI release my funds if my exchange fails, and when is the tax due?

Reg. §1.1031(k)-1(g)(6) names three release points, and a dead deal on day 90 is not one of them

Your money is shielded from constructive receipt only because the exchange agreement says you have no right 'to receive, pledge, borrow, or otherwise obtain the benefits' of it before the exchange period ends. Treas. Reg. §1.1031(k)-1(g)(6) then lists the only moments the agreement may let the funds go. A QI that wires early because your buyer walked would breach that clause and put any property you did close at risk.

If you identified two properties and one collapses, the other is still property you are entitled to receive, so the QI must hold everything until it closes, fails under a written contingency, or day 180 passes. What you can still buy in that window is covered in my identified property fell through after day 45.

• After the identification period, if you identified nothing by day 45: QIs describe paying out on written request from day 46.
• After you have received all the replacement property you are entitled to under the agreement, even if that happens on day 70.
• After a material and substantial contingency arises after day 45 that relates to the exchange, was provided for in writing and is beyond your control.
• Otherwise, after the exchange period ends: day 181, or the day after your return due date if that comes first (do I need a tax extension).

The contingency exception needs a written clause, an outside cause and a date after day 45

The regulation does not define 'material and substantial', but it does fix the three conditions the QI will check against your file. The contingency must relate to the deferred exchange, be provided for in writing, and be beyond your control, and it must occur after the identification period has ended.

In practice that means a termination letter tied to a contingency that was already in the purchase contract, such as the seller's failure to deliver clean title or a lender's refusal under a financing clause you did not waive. Your own change of heart, a price you decided not to pay, or an inspection you chose to fail are within your control and do not qualify.

Expect the QI to want the contract, the contingency language and the termination notice before releasing anything, and to hold the money if any other identified property remains alive. Confirm the release logic with your CPA or attorney before you sign a termination, because the wording of that notice is what the QI relies on.

The gain is fixed on the sale date but taxed in the year the QI pays you

For §453 purposes, Reg. §1.1031(k)-1(j)(2) disregards a qualified escrow and treats the intermediary as not your agent, so cash sitting with the QI is not a payment received. The regulation's own Example 2 has a transfer on September 22, 1994, $100,000 held by the intermediary, identification made, and the cash paid on March 11, 1995; the taxpayer 'may report the $20,000 gain in 1995 under the installment method.'

That default applies only if you had a bona fide intent to exchange when the exchange period began, judged on whether it was reasonable to believe replacement property would be acquired. A December closing with an empty list and no search behind it invites the IRS to say there was never an exchange, only a sale in December.

Two pieces never move to the second year. Rev. Rul. 2003-56 treats a net decrease in liabilities as money received in the year of the transfer, and §453(i) requires ordinary recapture income to be recognized in the year of disposition; the wider planning is in our tax-year straddle guide.

Worked example: a December 10, 2026 closing whose only identified property dies on February 20, 2027

Hypothetical, round numbers, debt-free sale. You close on December 10, 2026 with $800,000 of net proceeds wired to the QI, an adjusted basis of $450,000 and $120,000 of depreciation claimed, so the realized gain is $350,000. Day 45 falls on January 24, 2027, you identify one building, and its seller defaults on February 20 under a title contingency written into the contract.

The QI releases the $800,000 on February 27, 2027 once it has the termination file. Under the installment default the $350,000 gain goes on your 2027 return: 25% on the $120,000 of unrecaptured §1250 gain is $30,000, 15% on the remaining $230,000 is $34,500 for joint filers under the $613,700 breakpoint in Rev. Proc. 2025-32, and the 3.8% net investment income tax on $350,000 is $13,300, a federal total of $77,800 before state tax.

If 2026 was a low-income year and 2027 will not be, you can elect out under §453(d) by reporting the sale on your 2026 return by its due date including extensions (Pub. 537). Nothing about the amount changes; only the year and, with it, the brackets and the estimated-tax timetable.

Estimated tax: the quarter the money lands sets the payment date, not the closing date

Once the gain is taxable, the 2026 Form 1040-ES rule applies: you must pay estimated tax if you expect to owe at least $1,000 after withholding and your withholding covers less than the smaller of 90% of this year's tax or 100% of last year's tax, 110% if last year's adjusted gross income was over $150,000 ($75,000 married filing separately). The 2026 instalments are due April 15, June 15 and September 15, 2026 and January 15, 2027.

A payout in the fourth quarter belongs in the January 15 instalment, and Form 2210 Schedule AI lets you annualize so the earlier quarters are not charged for income you had not yet received. The underpayment charge is figured from the IRS's quarterly rate, which is 7% for October to December 2026, the federal short-term rate plus three points.

The simplest protection is the prior-year safe harbor: if your 2026 withholding and instalments already equal 100% or 110% of your 2025 tax, the balance on the sale is due with the return on April 15, 2027 and no underpayment charge applies. Whether that beats paying in the quarter is a cash-flow question, not a tax one.

Forms: Form 6252 for the payout year, Form 4797 or Schedule D for the sale, Form 8824 only if something closed

A wholly failed exchange is reported as a sale, on Form 4797 for rental or business property or Form 8949 and Schedule D for investment land; the Form 6252 instructions say not to file that form unless a payment lands in a year after the year of sale. When the QI pays you in the following year, Form 6252 goes with both returns: gross profit and contract price in Part I, the payment received on line 21, and any ordinary recapture on line 25.

If one identified property closed and the rest of the money came back, the transaction is a partial exchange reported on Form 8824, with the leftover cash on line 15 and recognized gain on line 20 (one replacement closes, another doesn't, filling out Form 8824). Boot and recapture then flow to Form 4797 or Schedule D as described in where boot and recapture go.

Breakwater Exchange is a 1031 exchange broker, not a preparer; what we can do while the clock is still running is show you Delaware Statutory Trust interests that close on subscription documents rather than inspections, so an identified DST can rescue an exchange that a building could not.