Key Takeaways

  • Section 1031 provides TAX DEFERRAL (not tax-free)—gain is recognized when the replacement property is eventually sold without another exchange.
  • Since the TCJA (2018), Section 1031 applies ONLY to real property; personal property exchanges (vehicles, equipment, artwork) no longer qualify.
  • The 45-day identification rule requires written identification of replacement property within 45 days of transferring the relinquished property.
  • The exchange must be completed within 180 days of the transfer OR by the tax return due date (with extensions), whichever is earlier.
  • "Boot" (cash or non-like-kind property received) triggers gain recognition to the extent of the boot received or the realized gain, whichever is less.
Last updated: January 2026

Like-Kind Exchanges (Section 1031)

A Section 1031 like-kind exchange allows taxpayers to defer recognition of gain when exchanging real property held for productive use in a trade or business or for investment. This provides tax deferral, not tax elimination.


Post-TCJA Changes: Real Property Only

The Tax Cuts and Jobs Act (TCJA) of 2017, effective for exchanges after December 31, 2017:

Before TCJA (2017 and earlier)After TCJA (2018 and later)
Real property AND personal property qualifiedOnly real property qualifies
Vehicles, equipment, artwork could be exchangedPersonal property NO LONGER qualifies

What Qualifies as "Like-Kind" Real Property?

For real property, "like-kind" is interpreted very broadly:

Relinquished PropertyReplacement PropertyQualifies?
Office buildingApartment complexYes
Vacant landShopping centerYes
Industrial warehouseFarmlandYes
Rental houseCommercial buildingYes

Important: U.S. real property is NOT like-kind to foreign real property.


Timeline Requirements: The 45/180 Day Rules

45-Day Identification Period

Within 45 calendar days of transferring the relinquished property, you must identify replacement property in writing.

180-Day Exchange Period

You must acquire the replacement property within the earlier of:

  • 180 calendar days after the transfer, OR
  • The due date (including extensions) of your tax return

These deadlines cannot be extended except in cases of federally declared disasters.


Property Identification Rules

RuleRequirements
3-Property RuleIdentify up to 3 properties of any value
200% RuleIdentify any number, but total FMV cannot exceed 200% of relinquished property's value
95% RuleIdentify any number, but must acquire at least 95% of total value identified

Boot: Taxable Portion of the Exchange

"Boot" is any cash or non-like-kind property received. Boot triggers immediate gain recognition.

Gain Recognition Rule

Recognized Gain = Lesser of:

  1. Boot received, OR
  2. Realized gain

Boot Example

ItemAmount
FMV of relinquished property$500,000
Adjusted basis$200,000
FMV of replacement property$450,000
Cash received$50,000
  • Realized gain: $500,000 – $200,000 = $300,000
  • Boot received: $50,000
  • Recognized gain: Lesser of $50,000 or $300,000 = $50,000
  • Deferred gain: $250,000

Basis of Replacement Property

Replacement Property Basis = FMV of Replacement Property – Deferred Gain

Or equivalently: Basis = Adjusted Basis of Relinquished Property + Recognized Gain


Qualified Intermediary Requirement

A Qualified Intermediary (QI) is essential for most 1031 exchanges. The following are disqualified persons:

  • The taxpayer
  • The taxpayer's agent (broker, attorney, accountant)
  • Anyone who has acted in the above capacities within the prior 2 years
  • Related parties

Related Party Rules

If either party to a related-party exchange disposes of the property within 2 years, the original exchange is disqualified.


EA Exam Tips

  1. Post-TCJA = Real property ONLY: Personal property no longer qualifies after 2017
  2. Deferral, not exclusion: Section 1031 defers gain; it does not eliminate it
  3. 45/180 are concurrent: The 180-day period includes the 45-day identification period
  4. Boot = taxable: Any cash or non-like-kind property received triggers recognition
  5. Basis preserves deferred gain: Replacement property basis is reduced by deferred gain
  6. Domestic/foreign mismatch: U.S. and foreign real property are NOT like-kind
Test Your Knowledge

Which of the following exchanges qualifies for Section 1031 treatment in 2024?

A
B
C
D
Test Your Knowledge

Marcus transfers his relinquished property on March 15, 2024. By what date must he identify potential replacement properties?

A
B
C
D
Test Your Knowledge

Jennifer exchanges a commercial building (FMV $800,000, adjusted basis $300,000) for a smaller office building worth $650,000 plus $150,000 cash. What is her recognized gain?

A
B
C
D
Test Your Knowledge

In a Section 1031 exchange, David exchanges property with an adjusted basis of $250,000 and receives replacement property worth $400,000. He also receives $30,000 cash. His realized gain is $180,000. What is his basis in the replacement property?

A
B
C
D