Construction & Improvement 1031 Exchange

What a construction exchange is

In a standard forward exchange, you sell, then buy an existing replacement property within 180 days. But IRC Section 1031 has a quirk: you can only exchange into property — not into services or future improvements on property you already own. Once title is in your name, every renovation dollar you spend is just ordinary spending, not exchange value.

The construction exchange solves this with the same safe harbor that powers reverse exchanges: Revenue Procedure 2000-37. An Exchange Accommodation Titleholder (EAT) takes title to the replacement property, your exchange funds pay for construction while the EAT holds it, and the property — land plus completed improvements — is transferred to you before day 180. Because the improvements exist before you take title, they count as like-kind replacement value.

When a construction exchange makes sense

• Your replacement costs less than your sale. The classic trigger. Sell for $2M, find the right property at $1.5M — the $500K difference would be taxable boot. Improvements absorb it: buy at $1.5M and put $500K of exchange-funded construction in place before closing the exchange.
• The right property needs work to perform. A dated multifamily building that rents 30% under market after renovation is often a better exchange target than a stabilized asset at full price — if the renovation can be exchange-funded.
• You're exchanging into ground-up construction. Land plus a build can qualify, but only the value completed by day 180 counts — so this works best for fast builds, substantial site work, or phased structures planned with the deadline in mind.
• You want a build-to-suit asset. Net-lease investors sometimes exchange into a property constructed to a specific tenant's requirements — the “build-to-suit” in the name.

If your replacement property costs more than what you sold and needs no work, you don't need this structure — a standard exchange is simpler and cheaper. Run your numbers in the 1031 exchange calculator first.

How it works: the EAT parking structure

The sequence in a typical forward construction exchange:

1. Sell the relinquished property. Proceeds go straight to your qualified intermediary — you never touch them.
2. The EAT acquires the replacement property. A special-purpose entity (usually a single-member LLC) takes title using your exchange funds, a loan, or both.
3. Construction runs while the EAT holds title. Your QI disburses exchange funds for the work through construction draws. You can supervise the project — the safe harbor allows it — but the EAT is the owner of record.
4. The improved property transfers to you by day 180. The EAT conveys land plus completed improvements, closing the exchange at the improved value.

A construction exchange can also be combined with a reverse structure (a “reverse improvement” exchange): the EAT buys and holds the replacement before your sale closes, construction starts immediately, and your sale proceeds reimburse the structure. It's the most flexible — and most involved — format in the 1031 toolbox.

The 180-day build constraint — the rule that shapes everything

The deadlines are the same as every exchange — 45 days to identify, 180 days to close — but they bite differently here, because only the value in place by day 180 counts.

• If you identified $500K of improvements and only $300K is built by day 180, you receive the property with $300K of improvement value. The $200K shortfall doesn't transfer — and the unspent exchange funds come back to you as taxable boot.
• “In place” means actually constructed — not contracted for, not deposited with the builder, not materials sitting on site.
• Permits, weather, and contractor delays don't extend the deadline. The IRS does not grant extensions (outside of federally declared disasters).

Identifying property that isn't built yet

Your 45-day written identification has to describe both the land and the improvements to be constructed — in as much detail as practicable. In practice that means:

• The legal description or address of the land, plus
• Architectural plans, a scope-of-work summary, or a written description of the building to be constructed.

The standard the IRS applies at the end: what you receive must be substantially the same as what you identified. Minor variations in the build are fine; receiving a fundamentally different property than described is not. This is one of the places where an experienced QI earns their fee — identification language that's specific enough to be valid but flexible enough to survive real-world construction changes.

Pitfalls to avoid

• Improving property you already own. The deal-killer. Once title is in your name, further improvements don't count. The structure must be in place before the EAT-to-you transfer — which means before you're tempted to “just close and renovate after.”
• Underestimating the construction timeline. The most common failure mode. NYC and northeast permitting alone can eat half the exchange window. Have permits filed (ideally issued) before the exchange clock starts whenever possible.
• Vague identification. “Land at 123 Main St plus improvements” invites a challenge. Identify the build with plans or a detailed scope.
• Construction draws that bypass the QI. Exchange funds must flow through the exchange structure to the work. Paying the contractor from your own account and “reimbursing later” breaks the chain.
• Holding costs surprise. While the EAT owns the property you're typically covering its mortgage, taxes, insurance, and utilities through the parking arrangement — on top of the build budget.
• State transfer taxes on the intermediate title transfer. As with reverse exchanges, some states tax the EAT acquisition and the EAT-to-you transfer separately. New York investors: model this before structuring — it changes the math on smaller deals.

Frequently asked questions