You’ve sold an investment property. You’re sitting on a significant capital gain—and a significant tax bill is headed your way unless you act. Now imagine taking that equity and channeling it into something you’ve wanted for years: a custom-built home on a piece of land you’ve carefully chosen, designed exactly the way you want it.
That’s not a fantasy. It’s a legitimate real estate strategy, and a 1031 exchange is what makes it possible.
Most people think of 1031 exchanges as a tool for swapping one rental house for another. But with the right structure—specifically the Build-to-Suit (or Construction) Exchange—you can use a 1031 exchange for a land purchase and finance a custom home build on that land, all while deferring capital gains taxes. At Kalen Development, we work with clients who are exploring exactly this path. It’s nuanced, it has strict rules, and it requires the right team. But when it works, it’s one of the most powerful moves in real estate.
Here’s everything you need to know.
Understanding 1031 Exchanges
A 1031 exchange—named after Section 1031 of the IRS tax code—allows a real estate investor to sell an investment property and reinvest the proceeds into a “like-kind” property, deferring federal capital gains taxes in the process.
The core principle is simple: instead of cashing out and paying taxes on your gains, you roll those gains into a new qualifying property. The taxes don’t disappear—they defer until you eventually sell the replacement property without doing another exchange.
Key legal facts to understand:
- The exchange must involve properties held for investment or business use—not personal residences.
- “Like-kind” is broader than most people assume. You can exchange a commercial building for raw land, or a rental duplex for a larger apartment complex.
- The transaction must be managed by a Qualified Intermediary (QI)—a neutral third party who holds the sale proceeds and facilitates the exchange. You cannot take receipt of the funds yourself.
- The IRS governs all of this under Revenue Procedure 2000-37, which specifically addresses build-to-suit (improvement) exchanges.
What makes the custom home scenario interesting—and complicated—is that raw land by itself may not equal the value of the property you sold. That’s where the construction exchange structure comes in.
Applicable Scenarios for Custom Home Building
Not everyone should pursue this strategy. But for the right investor, it’s a game-changer.
Who benefits most from a 1031 exchange into land and construction?
- Investors transitioning from active management: You’ve spent years managing rental properties and want to convert that equity into a high-value asset—perhaps a luxury home on acreage in the Pacific Northwest—without triggering a large tax event.
- Investors with significant appreciation: The bigger your unrealized gain, the more valuable deferral becomes. If you’re looking at a $500,000+ gain, the tax savings from a successful exchange are substantial.
- Buyers who want to build, not buy: If the ready-built luxury home market isn’t offering what you want—the right lot, the right layout, the right finishes—building custom gives you control. A 1031 exchange can fund that.
- Those thinking long-term: If you intend to hold the new property as a rental, vacation home with rental income, or as part of an estate, this strategy aligns well with long-term financial planning.
What doesn’t work: If your primary goal is to build a personal residence you’ll move into immediately with no investment intent, a standard 1031 exchange won’t qualify. However, there are hybrid strategies (including the Section 121 exclusion) worth discussing with your tax advisor.
Step-by-Step Guide to Using a 1031 Exchange for Land Purchase and Custom Home Construction
This is where most people get lost. The construction exchange has more moving parts than a standard 1031. Here’s how it works in practice.
Step 1: Sell Your Relinquished Property
Start by selling your existing investment property. Before the sale closes, you need a Qualified Intermediary in place. This is non-negotiable. The QI must be engaged before closing—not after.
The QI holds the sale proceeds in a segregated account. You never touch the money.
Step 2: Identify Replacement Property Within 45 Days
You have 45 calendar days from the close of your relinquished property sale to formally identify replacement properties. In a construction exchange, you’re identifying both the land and describing the improvements you intend to build.
The IRS allows you to identify up to three properties (or more under certain rules). Be specific and realistic—vague descriptions can disqualify your exchange.
Step 3: Create a Build-to-Suit Exchange Structure
This is what separates a construction exchange from a standard exchange. Because you’re building improvements on land you don’t technically own yet during the exchange period, the IRS requires an Exchange Accommodation Titleholder (EAT)—usually an LLC set up by your QI—to hold title to the land while construction occurs.
The EAT:
- Takes title to the land at purchase
- Enters into construction contracts with your builder
- Holds the property while improvements are completed
- Transfers title to you at the end of the exchange period
This structure exists because the IRS does not allow you to build improvements on land you already own and count that as “replacement property.” The EAT arrangement solves that problem legally.
Step 4: Begin Construction
With the land under EAT ownership and your exchange funds flowing through the QI, construction begins. Your builder—ideally one experienced with this structure, like the team at Kalen Development—works under contracts executed through the EAT.
All construction costs funded by the exchange proceeds count toward your reinvestment total. This is critical for matching or exceeding the value of your relinquished property.
Step 5: Complete the Exchange Within 180 Days
You have 180 calendar days from the sale of your relinquished property to close on your replacement property. In a construction exchange, this means the EAT must transfer the improved property to you within that window.
Whatever improvements are completed by day 180 count. Whatever isn’t done yet does not count toward the exchange value—which is why construction planning and timeline management matter enormously.
Step 6: Receive the Property and File Properly
Once the exchange completes, title transfers from the EAT to you. Your QI closes out the exchange account. You’ll report the exchange on IRS Form 8824 when you file your taxes for the year the exchange occurred.
Work with a CPA who has experience with 1031 exchanges. The reporting has specific requirements.
Eligibility Criteria and Requirements
Not every property or investor qualifies. Here’s the checklist:
The relinquished property must:
- Be held for investment, trade, or business use (not personal use)
- Be real property (Section 1031 now applies only to real property after the 2017 Tax Cuts and Jobs Act)
The replacement property must:
- Also be real property held for investment or business use
- Be “like-kind” to the relinquished property (almost any real property for real property qualifies)
- Equal or exceed the value of the relinquished property to fully defer taxes
Critical deadlines:
- 45 days: Identify replacement property in writing
- 180 days: Close on replacement property (or receive completed improved property from EAT)
- These deadlines run concurrently—they both start on the sale date and do not reset
The “equal or greater value” rule: To defer 100% of your capital gains, the replacement property value (land + completed improvements) must equal or exceed the net sale price of your relinquished property. If it’s less, the difference (“boot”) is taxable.
What doesn’t qualify:
- Properties outside the United States
- Personal residences (with limited exceptions)
- Inventory or property held primarily for resale
- Stocks, bonds, or personal property
Potential Challenges and How to Overcome Them
The 180-Day Construction Timeline
Custom home construction rarely moves fast. Permitting delays, supply chain issues, and design changes can push timelines out. In a 1031 exchange, you can’t extend the 180-day deadline—it’s statutory.
Solution: Begin pre-construction work (design, permitting, site prep) before your relinquished property closes. Many experienced builders and QIs will help you sequence this carefully. Identify a parcel where permitting is predictable.
Finding Qualified Intermediaries Experienced with Construction Exchanges
Not all QIs handle build-to-suit exchanges. Standard QIs may not have the legal infrastructure to set up and manage the EAT.
Solution: Vet your QI specifically for construction exchange experience before you engage them. Ask how many they’ve managed. Get references.
Matching or Exceeding Replacement Value
Raw land alone is rarely worth as much as a completed investment property. If the land is $400,000 and your relinquished property sold for $1,200,000, you need $800,000 in completed improvements to fully defer.
Solution: Work with your builder to develop a construction budget that aligns with your exchange requirements before you identify the property. Kalen Development helps clients map this out during project planning.
Dual Intent: Investment vs. Personal Use
The IRS scrutinizes properties where the taxpayer’s primary intent is personal use. A custom home you plan to live in full-time faces a higher bar.
Solution: Document investment intent clearly—rental history plans, LLC holding structures, etc. Consult with a tax attorney before structuring the exchange if personal use is part of your plan.
Tax Benefits and Financial Implications
The headline benefit is obvious: deferred capital gains taxes. But the full picture is worth understanding.
Capital gains deferral: Federal long-term capital gains rates are 0%, 15%, or 20% depending on income. For high earners, add the 3.8% Net Investment Income Tax. On a $700,000 gain, that’s potentially $165,000+ deferred.
Depreciation recapture avoidance: When you sell a rental property, the IRS “recaptures” depreciation you took at a 25% rate. A 1031 exchange defers this too.
Step-up in basis at death: If you hold the replacement property until death, your heirs receive a stepped-up cost basis—potentially eliminating the deferred tax. This makes 1031 exchanges a meaningful estate planning tool.
Compounding reinvestment: Instead of paying $150,000+ in taxes and investing the remainder, you reinvest the full amount. That compounding effect over years can be significant.
The trade-off: Your tax basis in the replacement property carries over from the relinquished property (adjusted). When you eventually sell, you’ll owe taxes on the full deferred gain plus any new appreciation—unless you do another exchange.
Case Study: A Pacific Northwest Build with a 1031 Exchange
Consider this hypothetical but realistic scenario:
A couple in the Pacific Northwest has held a small commercial property for 12 years. They purchased it for $350,000, and it’s now worth $1,150,000. They want to exit active commercial real estate and build a custom home on a forested parcel they’ve found—something they could eventually rent as a luxury retreat or pass to their children.
Facing roughly $200,000+ in combined federal capital gains and depreciation recapture tax if they sell outright, they engage a QI experienced in construction exchanges.
What they do:
- Sell the commercial property and have the QI hold the $1,150,000 proceeds
- Within 45 days, identify a $275,000 forested parcel and submit a description of planned improvements
- The EAT takes title to the land; construction contracts are executed
- Kalen Development is engaged to design and build a 4,200 sq ft luxury retreat home
- Over 170 days, the home is framed, finished, and substantially complete
- The EAT transfers the property—land plus completed home—to the couple before day 180
Result: The full exchange value is met. Capital gains taxes are deferred. They now own a custom-built luxury home with clear investment documentation, positioned for both rental income and long-term appreciation.
No single outcome is guaranteed—every exchange depends on specific facts and current tax law. But this scenario illustrates why the strategy is worth serious consideration.
How It Works: From Land Purchase to Custom Home Completion
Here’s a condensed timeline of the full process:
| Phase | Action | Timeline |
| Pre-sale | Engage QI, begin land search, pre-design work | Before closing |
| Sale closes | Relinquished property sells; QI holds proceeds | Day 0 |
| Property ID | Formally identify land + planned improvements | By Day 45 |
| Land acquisition | EAT purchases land using exchange funds | Days 30–60 |
| Construction begins | Builder starts work under EAT contracts | Days 45–90 |
| Construction phase | Active building, inspections, finishes | Days 60–170 |
| Exchange closes | EAT transfers completed property to investor | By Day 180 |
| Tax filing | Report exchange on IRS Form 8824 | Tax year of exchange |
The most important variable: construction speed. Everything else in this process is sequenceable. Construction timelines are the wildcard. Work with a builder who understands the constraints and has the team to execute.
Ready to explore whether a 1031 exchange is the right move for your next custom home? The Kalen Development team works with investors and builders throughout the Pacific Northwest to structure projects that meet both your lifestyle and investment goals. Schedule a consultation today.
Key Takeaways
- A build-to-suit (construction) 1031 exchange lets you use exchange funds to purchase land and build improvements, not just buy existing properties.
- The 45-day identification and 180-day completion deadlines are strict and run concurrently—plan your construction timeline before your sale closes.
- An Exchange Accommodation Titleholder (EAT) must hold title to the land during construction. You can’t own the land yourself while building and count it as a 1031 replacement.
- To fully defer taxes, the combined value of land plus completed improvements must equal or exceed the value of your relinquished property.
- The strategy works best when the replacement property is held for investment or business purposes—not immediate personal use.
- Work with a Qualified Intermediary experienced in construction exchanges, a qualified CPA, and a builder who understands how these deals are structured.
FAQs
What is a 1031 exchange and how does it work for new construction?
A 1031 exchange lets you defer capital gains taxes by reinvesting proceeds from a sold investment property into a like-kind replacement property. For new construction, a “build-to-suit” or “improvement exchange” structure allows you to use exchange funds for both land purchase and construction—as long as a qualified EAT holds title during the building process and the exchange completes within 180 days.
Can you use a 1031 exchange to buy land and build a custom home?
Yes, using a construction exchange. The key is that the land must be purchased by an Exchange Accommodation Titleholder (not you directly), improvements must be completed within the 180-day exchange window, and the completed property must be held for investment or business purposes—not solely as a personal residence.
How long do you have to build a house with a 1031 exchange?
You have 180 calendar days from the sale of your relinquished property to complete the exchange—including receiving the improved property. Only improvements completed before that deadline count toward your exchange value. There are no extensions available.
What are the penalties for failing a 1031 exchange?
If an exchange fails or is disqualified, the IRS treats the original sale as fully taxable in the year it occurred. You’d owe capital gains tax plus depreciation recapture, potentially with interest if you underpaid estimated taxes. This is why choosing an experienced QI and tax advisor matters.
Can a 1031 exchange be used for any type of property?
Since the 2017 Tax Cuts and Jobs Act, 1031 exchanges apply only to real property. You cannot exchange vehicles, equipment, artwork, or other personal property. Within real property, almost any type qualifies as “like-kind”—residential, commercial, land, industrial—as long as both properties are held for investment or business use.
What are the 1031 exchange rules for property held for personal use?
Property held primarily for personal use does not qualify. However, vacation homes and properties with mixed-use histories may qualify under certain conditions (IRS Revenue Procedure 2008-16 provides a safe harbor). If you plan to eventually live in a property you’re acquiring via a 1031 exchange, consult a tax attorney before structuring the exchange.
Are there limits on how much you must reinvest?
To defer 100% of your capital gains, you must reinvest all net proceeds into replacement property of equal or greater value. If you reinvest less, the shortfall (“boot”) is taxable. You can still do a partial exchange—you’ll just owe taxes on the boot portion.
Do I need a lawyer to complete a 1031 exchange?
Not legally required, but strongly recommended for construction exchanges specifically. The EAT structure involves legal entities, contracts, and coordination that benefit from legal oversight. A tax attorney combined with an experienced QI and CPA is the standard professional team for these transactions.
THINKING ABOUT BUILDING?
Planning a Custom Home in the Pacific Northwest?
Kalen Development has built custom homes across Vancouver, Portland, Lake Oswego, and Bend for more than 20 years. If you’re starting to plan a project, we’re glad to talk it through — budget, timeline, and what your lot can support.