Definition
A 1031 exchange — named for Section 1031 of the Internal Revenue Code — is a transaction that allows an investor to sell real property held for business or investment use and defer the federal capital gains tax by reinvesting the proceeds into like-kind replacement property. Rather than recognizing the gain in the year of sale, the investor rolls it forward: the deferred gain is carried into the new property through an adjusted (lower) basis. The mechanism defers tax; it does not eliminate it.
How a 1031 Exchange Works
A 1031 exchange follows a defined sequence and strict IRS deadlines. In a typical delayed exchange:
- Sale of the relinquished property. The investor sells the property they currently own. A qualified intermediary holds the proceeds so the investor never takes constructive receipt of the cash.
- 45-day identification. Within 45 days of the sale, the investor must identify candidate replacement property in writing.
- 180-day closing. The investor must close on the replacement property within 180 days of the sale. The two periods run concurrently.
- Reinvestment of value and equity. To fully defer the gain, the investor generally must reinvest all equity and acquire property of equal or greater value, replacing any debt that was paid off.
Why the Standards Matter
The exchange must involve like-kind property — since 2018, this means real property held for business or investment, exchanged for other such real property. Any cash or non-like-kind value the investor receives is called boot and is taxable to the extent of gain. Because the mechanics are unforgiving, most investors work with a qualified intermediary and their CPA to keep the transaction inside the safe harbor. Fractional structures such as a Delaware Statutory Trust or tenants-in-common interest can also serve as replacement property when time is short.
Key Characteristics
| Feature | 1031 Exchange |
|---|---|
| Authority | IRC §1031 |
| Eligible property | Real property held for business/investment |
| Identification deadline | 45 days |
| Closing deadline | 180 days |
| Tax effect | Deferral, not elimination |
| Intermediary | Qualified intermediary required (delayed exchange) |
| Basis | Carries forward at a reduced basis |
Important Considerations
A 1031 exchange is powerful but rule-intensive, and the deadlines are absolute. Failing to identify or close on time, taking constructive receipt of proceeds, or receiving boot can trigger some or all of the deferred tax. The strategy also carries the ordinary risks of real estate — market, tenant, and financing risk, including possible loss of principal — and later depreciation recapture may apply on an eventual taxable sale. Whether an exchange fits depends on your objectives and tax situation and should be reviewed with a qualified advisor and your CPA.
Related Terms
- Like-Kind Property — the qualifying standard for replacement real estate
- Qualified Intermediary — the third party that holds exchange proceeds
- Boot — taxable non-like-kind value received in an exchange
This definition is educational only and is not investment, tax, or legal advice. 1031 exchanges involve strict IRS deadlines and requirements, and real estate investments carry risk including possible loss of principal. Confirm current rules and your specific treatment with your CPA and a qualified advisor.
See How a 1031 Exchange Fits Your Sale
Estimate the capital gains you could defer by reinvesting into like-kind replacement property.