What Is a §1031 Like-Kind Exchange?
Internal Revenue Code §1031(a)(1) allows taxpayers to defer recognition of gain when real property held for productive use in a trade or business or for investment is exchanged for like-kind real property held for the same purposes.
This is a deferral provision, not an exclusion. The gain is postponed—not eliminated—by rolling the basis forward into replacement property.
Key Statute: IRC §1031(a)
Key Regulations: Treas. Reg. §1.1031(a)-1 through §1.1031(k)-1
What Changed After the Tax Cuts and Jobs Act (TCJA)?
Before 2018, §1031 applied to certain personal property exchanges (equipment, aircraft, franchise rights).
The Tax Cuts and Jobs Act of 2017 dramatically narrowed §1031 so that it now applies only to real property.
Authority: IRC §1031(a)(1), as amended by Pub. L. 115-97
Effective Date: Exchanges completed after December 31, 2017
Personal property exchanges no longer qualify—no matter how similar the assets may be.
What Counts as “Like-Kind” Real Property?
“Like-kind” is interpreted very broadly for real estate.
Under Treas. Reg. §1.1031(a)-1(b), real property is like-kind if it is of the same nature or character, even if it differs in grade or quality.
Examples of qualifying exchanges:
- Rental house → apartment complex
- Raw land → commercial building
- Warehouse → retail strip center
Examples that do not qualify:
- Primary residence (IRC §121 property)
- Property held primarily for resale (inventory)
- Partnership interests (IRC §1031(a)(2)(D))
Strict Timing Rules: 45 Days and 180 Days
A deferred exchange must comply with Treas. Reg. §1.1031(k)-1.
There are two non-negotiable deadlines:
- 45-Day Identification Period
The taxpayer must identify replacement property in writing within 45 days of transferring the relinquished property. - 180-Day Exchange Period
The replacement property must be received by the earlier of:- 180 days after transfer, or
- The due date of the taxpayer’s return (including extensions)
Failure to meet either deadline disqualifies the exchange entirely.
Qualified Intermediaries Are Mandatory
Taxpayers may not receive or control sale proceeds.
Under Treas. Reg. §1.1031(k)-1(g)(4), a Qualified Intermediary (QI) must:
- Hold exchange funds
- Acquire and transfer replacement property
- Be independent (not the taxpayer’s agent within the prior two years)
Constructive receipt of funds = immediate gain recognition.
Boot: When Gain Becomes Taxable
Any non-like-kind property received is called “boot” and is taxable to the extent of realized gain.
Boot includes:
- Cash received
- Debt relief not offset by new debt
- Non-real-estate property
Authority: IRC §1031(b)
Even a “mostly compliant” exchange can trigger partial taxation.
Basis Carryover Rules
Under IRC §1031(d), the basis of replacement property equals:
Adjusted basis of relinquished property
+ gain recognized
– boot received
This is how the gain remains embedded and deferred.
Common Audit Triggers and Mistakes
- Missing the 45-day identification deadline
- Improper identification descriptions
- Using related-party intermediaries
- Attempting to exchange dealer property
- Mixing §1031 with §121 improperly
The IRS routinely examines §1031 exchanges due to high dollar values and frequent technical failures.
Why §1031 Still Matters
Despite TCJA limitations, §1031 remains one of the most powerful tools for:
- Real estate investors
- Landlords
- Developers
- High-net-worth taxpayers restructuring portfolios
When executed correctly, it allows tax-efficient reinvestment at scale.
Final Thoughts
§1031 exchanges are procedural minefields. They are governed less by intent and more by precise compliance with statutory and regulatory mechanics.
Taxpayers should coordinate before closing, not after.
At Dino Tax Co, we help clients navigate tax matters ranging from unfiled returns to IRS letters and levies and everything in between with clarity and confidence. If you’d like guidance on your situation, schedule a consultation today. Call or text (713) 397-4678 or email davie@dinotaxco.com. We’re here to help you take the next step.

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