An improvement exchange lets exchange proceeds pay for construction or renovation on your replacement property — solving the 'my sale nets more than the replacement costs' problem without eating boot. The catch: the property parks with an EAT while work happens, only what's built by day 180 counts, and you generally can't improve land you already own. Costs run several thousand more than a standard exchange, and the construction calendar becomes your tax calendar.
You sell for $1.2M and find the right replacement at $900K. In a standard exchange, that $300K difference is heading toward taxable boot. But what if the $900K property needs a new roof, a build-out, or an addition? An improvement exchange (also called a build-to-suit or construction exchange) lets exchange dollars pay for those improvements — so the full $1.2M lands in qualifying real estate: $900K of purchase plus $300K of construction.
Same tool works in the other direction: buying raw land and building on it, or buying a shell and finishing it, all inside the exchange.
Here's the wrinkle: you can't do an exchange into property you already own — and money spent improving a property after you take title is just spending money, not acquiring like-kind property. So, exactly like a reverse exchange, an Exchange Accommodation Titleholder steps in under the Rev. Proc. 2000-37 safe harbor: the EAT takes title to the replacement property, your exchange funds flow through the QI to pay the purchase and the construction, and when the work is done (or the clock runs out), the EAT transfers the improved property to you.
Only what exists by day 180 counts. The property you receive — land plus whatever improvements are physically in place — is valued as of the transfer. Unspent construction budget doesn't count; work finished on day 195 doesn't count. Improvement exchanges are won and lost on construction scheduling, which means your general contractor is now, functionally, part of your tax team. Weather delays have created boot.
Identification gets specific. Within your normal 45 days, you identify not just the property but a description of the improvements to be made — as much detail as practical. Funds flow through the structure: the QI funds the EAT's purchase; draws pay contractors as work progresses. Value must still add up: to fully defer, the property's value at transfer (land + completed improvements) must meet the equal-or-greater tests, same as any exchange. The 180 days is combined — purchase and construction share the same window that started when your relinquished property closed. Practical translation: have plans, permits, and a mobilized contractor before day zero, because a permit office does not care about your exchange deadline.
Between EAT setup, title work, and added legal structure, expect fees in the $5,000–$10,000+ range — several times a standard exchange, in line with reverse exchanges. Worth it when the improvement budget is meaningful relative to the deferral at stake (using $300K of would-be boot to build equity you wanted anyway, versus paying ~30% of it in tax, is easy math). Not worth it for a $40K renovation you could simply fund after closing with outside cash.
Improving property you (or a related party) already own — "leasehold improvement exchanges" using long-term ground leases to a parking entity — occupies the aggressive frontier of this strategy. Structures exist; some have survived scrutiny; all of them are specialist territory with real audit risk. If an advisor pitches one breezily, that breeziness is data. Get a second, independent opinion from a tax attorney who does exchanges for a living.
No. Plans, deposits, and stockpiled materials don't count — only improvements actually made to the property by transfer. This is the single most misunderstood rule in the structure.
Generally yes — the EAT holds title but you can supervise construction. Your labor itself isn't exchange value; the built improvements are.
They come back through the QI as cash boot — taxable. Budget the construction draw schedule against the calendar from day one.
A free, no-obligation introduction to a vetted 1031 or DST partner — with our referral relationship disclosed in writing. On the 45-day clock? Same-day attention.