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Mapleton, Utah
Morkel Financial & Tax Services

Reverse 1031 Exchange Rules: Buy First, But Never in Your Own Name.

By Ewan Morkel, EA6 min read

You can buy the replacement property before you sell the old one, but only if an exchange accommodation titleholder takes title instead of you. Rev. Proc. 2000-37 gives you 5 business days for the paperwork, 45 days to name what you are selling, and 180 days to finish.

Contemporary residential home behind a green yard and trees

A landlord finds the fourplex he has wanted for three years, and the seller wants to close in 30 days. His duplex is not listed yet. He has the cash to buy first and sell second, so he signs in his own name, closes, and calls me two weeks later to ask how to structure the 1031. That call is three weeks late. Reverse 1031 exchange rules let you buy the replacement property before you sell the old one, but somebody other than you has to take title on the day of the purchase.

Why parking

Section 1031 needs an exchange, so somebody else holds one side.

Section 1031 defers gain only on an exchange, meaning a reciprocal transfer, and you cannot swap a property with yourself. That is why this is called a parking arrangement. Rev. Proc. 2000-37, 2000-2 C.B. 308, is the safe harbor: hold the property in a qualified exchange accommodation arrangement (a QEAA) and the IRS will treat the titleholder as the beneficial owner of the parked property for federal income tax purposes. Section 4.01(2) defines what it has to hold as qualified indicia of ownership: legal title, other indicia treated as beneficial ownership under commercial law, or interests in an entity disregarded as separate from its owner. That last option is why nearly every parking deal runs through a new single-member LLC.

Section 4.02(1) rules out you and any disqualified person under Treas. Reg. §1.1031(k)-1(k): your accountant, attorney, or broker, anyone else who has been your agent in the past two years, and anyone related to you under §267(b) or §707(b) with 10% substituted for 50%.

The clocks

In a reverse 1031 exchange the 45 days identify what you are selling.

A forward exchange is not a useful model here: every deadline runs from the day the titleholder takes title, and no sale has happened yet. Section 4.02(3) gives you 5 business days after that transfer to sign a written qualified exchange accommodation agreement stating that the titleholder holds the property for your benefit to facilitate a §1031 exchange. Section 4.02(4) gives you 45 days from the same date to identify the relinquished property, in a manner consistent with the principles in Treas. Reg. §1.1031(k)-1(c), so the 3-property and 200% limits apply to what you intend to sell. Section 4.02(5) requires the parked property to reach you no later than 180 days after the titleholder took title, and section 4.02(6) caps the combined time both properties spend in the arrangement at 180 days. Calendar days, and nothing in the revenue procedure stretches for a slow buyer.

Which property gets parked decides who carries the risk: park the replacement, the usual structure, and the old one has to sell inside those 180 days. Park the relinquished property instead and you take the new one immediately, but section 4.02(5)(b) still requires the parked property to go within 180 days to somebody who is not you or a disqualified person, and you have to fund the purchase without the sale proceeds. Either way the statutory deadlines in IRC §1031(a)(3) run from the transfer of the relinquished property and end at the earlier of 180 days or your return due date including extensions. In practice the parking clock binds first.

Already closed

Owning it first kills the safe harbor for that property.

Rev. Proc. 2004-51 added section 4.05, one sentence long: the safe harbor "does not apply to replacement property held in a QEAA if the property is owned by the taxpayer within the 180-day period ending on the date of transfer of qualified indicia of ownership of the property to an exchange accommodation titleholder." That has been the rule since July 20, 2004. So the landlord cannot hand a titleholder the fourplex he closed on three weeks ago and call it parked, and deeding it into a new LLC changes nothing, because a disregarded entity is still him. His gain on the duplex is taxable when it sells, and a forward exchange into a different property is what is left.

Parking a $1,150,000 fourplex on March 3, 2026 to sell an $840,000 duplex.
Titleholder takes title to the fourplex
March 3, 2026
Accommodation agreement signed, 5 business days
by March 10, 2026
Duplex identified as the property to sell, day 45
by April 17, 2026
Both legs closed, day 180
by August 30, 2026
Duplex sale price
$840,000
Adjusted basis, $620,000 cost less $185,000 depreciation
$435,000
Realized gain
$405,000
Unrecaptured §1250 gain of $185,000 taxed at 25%
$46,250
Remaining $220,000 of long-term gain taxed at 20%
$44,000
Net investment income tax, 3.8% of $405,000
$15,390
Federal tax if the duplex is simply sold
$105,640
Federal tax deferred by the reverse exchange
$105,640
Basis in the fourplex after the exchange
$745,000

Tax year 2026, married filing jointly. Assumes the duplex was held more than a year, that only straight-line depreciation was claimed so the $185,000 is unrecaptured §1250 gain taxed at a maximum of 25% under §1(h)(1)(E) rather than ordinary recapture, taxable income above the $613,700 threshold where the 20% capital gain rate starts for joint filers in 2026 under Rev. Proc. 2025-32, modified AGI above the $250,000 §1411 threshold, and no state income tax. Day 45 and day 180 are calendar days counted from the March 3, 2026 transfer of title to the titleholder, and the 5 business days assume no intervening federal holiday. Assumes all net proceeds are reinvested, the debt on the fourplex is at least the debt paid off on the duplex, and no boot is received, so the whole gain is deferred and basis in the fourplex is its $1,150,000 cost less the $405,000 deferred.

Outside the safe harbor

Bartell won in Tax Court and the IRS still refuses to follow it.

The case people cite for running long is Estate of Bartell v. Commissioner, 147 T.C. 140 (2016). An accommodator took title on August 1, 2000, six weeks before the safe harbor took effect on September 15, 2000, and held it 17 months while the taxpayer built and opened a drugstore on the land. A qualified intermediary sold the old property and delivered the parked one in December 2001. The Tax Court held it was still a §1031 exchange even though the accommodator never had the benefits and burdens of ownership. The IRS answered with Action on Decision 2017-06 on August 14, 2017, announcing nonacquiescence: outside the safe harbor it will argue the titleholder has to actually bear those benefits and burdens. Bartell is a litigating position, not a plan.

What it costs

Two closings, a new entity, and a lender who has to play along.

Accommodation fees run well above a forward exchange, plus entity formation, a second closing when the parked property comes to you, and in some states a second round of transfer tax and title insurance. The titleholder has no money of its own, so you fund the purchase, which section 4.03 expressly permits: you may lend it funds, guarantee its debt, indemnify it for costs, and lease the parked property back without breaking the safe harbor. The bottleneck is usually the lender, since the borrower on the note is an LLC owned by the titleholder rather than you, and not every bank will write that loan even with your guarantee. Ask before you sign. At $105,640 of deferred tax the friction is noise. At $15,000 it is not worth doing.

Two mechanical notes. Because the safe harbor treats the titleholder as the beneficial owner while the property sits parked, your depreciation and any cost segregation study start when title comes to you, not at the parking closing. Park in December and take title in February and those deductions land in the later year. Report the exchange on Form 8824 with the return for the year you transferred the relinquished property, where basis in the replacement is its cost less the gain deferred, the same bargain described in how to avoid depreciation recapture on a rental property.

Frequently asked

Quick answers on this topic.

Can I still do a reverse 1031 exchange if I already closed on the new property?

Not with that property. Section 4.05 of Rev. Proc. 2000-37, added by Rev. Proc. 2004-51 for transfers on or after July 20, 2004, denies the safe harbor to replacement property the taxpayer owned within the 180-day period ending on the date title goes to the exchange accommodation titleholder. Moving it into a single-member LLC does not help, since a disregarded entity is still you. What is left is a forward exchange into a different property.

How long do I have to sell my old property in a reverse 1031 exchange?

180 calendar days from the day the titleholder takes title to the parked property, under section 4.02(5) of Rev. Proc. 2000-37, with the relinquished property identified in writing by day 45 under section 4.02(4). Section 4.02(6) also caps the combined time both properties sit in the arrangement at 180 days. There is no extension for a buyer who backs out, so price the old property to move rather than to test the market.

Is a reverse 1031 exchange legitimate, or does it invite an audit?

It is a published IRS safe harbor, in effect for arrangements entered into on or after September 15, 2000, and it gets reported on the same Form 8824 as any other like-kind exchange. The exposure is in falling outside it. In Action on Decision 2017-06 the IRS announced nonacquiescence in Estate of Bartell v. Commissioner, 147 T.C. 140 (2016), and said that outside the safe harbor it will argue the titleholder needs the actual benefits and burdens of ownership. Stay inside the 180 days and there is nothing unusual to defend.

Who can act as the exchange accommodation titleholder?

Anyone who is not you and not a disqualified person under Treas. Reg. §1.1031(k)-1(k), and who is subject to federal income tax, or, if it is a partnership or S corporation, has more than 90% of its interests held by owners subject to federal income tax. That excludes your accountant, attorney, or broker, anyone who has been your agent in the past two years, and people and entities related to you under §267(b) or §707(b) at the 10% level. In practice it is a single-member LLC formed by a national exchange company.

Does a reverse 1031 exchange cost more than a regular one?

Yes, and the gap is not small. You are paying accommodation fees, forming an entity, closing twice, sometimes paying transfer tax and title insurance twice, and carrying the parked property until the sale funds. That is fine when the deferral is six figures and a bad trade when it is $10,000 or $15,000. Run the deferred tax first, then decide.

Real estate tax planning

Modeling the after-tax outcome before you buy.

If a cost segregation study or a 1031 exchange is on your radar, the most valuable conversation is the one before the closing. We model the numbers, coordinate the cost seg, and file the elections, so the strategy survives the IRS, not just the spreadsheet.

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