A standard 1031 exchange requires you to acquire a replacement property that's already built and ready to generate income. But what happens when you find the right location with the wrong building? Or when you want to maximize your exchange by adding value through construction?
An Improvement Exchange -- formally known as a Build-to-Suit or Construction Exchange -- solves this problem. It allows you to use exchange funds not only to acquire a replacement property but also to pay for capital improvements completed after you take title.
Here's the key distinction: In a standard exchange, you must acquire property of equal or greater value. In an Improvement Exchange, the combined value of the acquired property plus the completed improvements must equal or exceed your relinquished property's value. This means you can buy a $400,000 property and spend $300,000 on construction, satisfying a $700,000 exchange requirement.
The IRS recognizes this strategy under Revenue Procedure 2000-37, but it comes with strict requirements. An Exchange Accommodation Titleholder (EAT) must take title to the property and hold it during construction. You cannot take title directly and reimburse yourself later.
Not every dollar you spend on a property counts toward your exchange value. The IRS draws a sharp line between capital improvements and repairs.
Capital Improvements (Qualify)
- Adding square footage through new construction
- Building additional units or structures
- Major renovations that transform functionality
- Installing new systems (HVAC, electrical, plumbing)
- Structural repairs extending building life
Repairs (Do Not Qualify)
- Routine maintenance and painting
- Fixing leaks or replacing worn fixtures
- Cosmetic updates that don't extend useful life
- Cleaning, landscaping, or minor touch-ups
- Removable equipment or appliances
The improvement must also be permanently affixed to the property. Equipment that can be easily removed -- like appliances or movable storage units -- typically doesn't qualify. When in doubt, ask yourself: "Does this become part of the real estate, or could I take it with me if I sold the property?"
If there's one rule that keeps Improvement Exchange investors awake at night, it's this: All improvements must be completed within 180 days of selling your relinquished property. Not 181 days. Not "substantially complete." Completed.
Critical Rule
Any improvements not completed by day 180 cannot be counted toward your exchange value. If you needed $800,000 in total value but only $600,000 of improvements were finished, you have a $200,000 taxable boot. The IRS doesn't care that the remaining work was "almost done" or that weather caused delays.
Strategies for Managing the Deadline
Start with Realistic Timelines
If your contractor says a project takes five months, don't assume you can squeeze it into 180 days. Build in buffer time for permits, inspections, and unexpected delays.
Consider Phased Approaches
Prioritize critical improvements that are essential to meeting your exchange value, with additional work planned for after the exchange concludes.
Get Permits Early
Permit delays are one of the most common reasons Improvement Exchanges fail. Start the permitting process before you even sell your relinquished property if possible.