Key Takeaways
- A 1031 exchange defers capital gains and depreciation recapture tax when investment real property is exchanged for like-kind real property.
- Deferral is not forgiveness. The deferred gain carries into the replacement property’s basis and surfaces on a later taxable sale.
- Two deadlines control the transaction: 45 days to identify replacement property and 180 days to close. Neither is extendable in ordinary circumstances.
- A qualified intermediary must hold the proceeds. Taking control of the funds generally disqualifies the exchange.
- Since 2018, only real property qualifies. Primary residences, property held for resale, and partnership interests are excluded.
Introduction
A 1031 exchange is a provision of the Internal Revenue Code that lets an owner sell investment or business real property and reinvest the proceeds in like-kind real property without recognizing capital gains tax at the time of sale. The tax is deferred rather than cancelled, and it moves into the replacement property.
For business owners and high earners, the appeal is straightforward. Tax paid at closing is capital that leaves the portfolio permanently, while deferred tax stays invested.
The rules are narrow and the deadlines are firm. Most failed exchanges fail on mechanics rather than on strategy, which makes the procedural detail as important as the concept itself.
What Is a 1031 Exchange?
Section 1031 allows an owner to exchange real property held for productive use in a trade or business, or for investment, for other like-kind real property. When the requirements are met, gain is not recognized at the time of the exchange.
What “like-kind” means in practice
Like-kind is broader than most people expect. For real property, nearly any United States real property held for investment or business use is like-kind to other such property.
Raw land can be exchanged for an apartment building, or a retail unit for a warehouse. Quality, grade, and level of improvement do not control the analysis.
United States real property is not like-kind to foreign real property, so cross-border exchanges do not qualify.
What does not qualify
Since the 2017 tax law took effect, only real property is eligible. Equipment, vehicles, and other personal property no longer qualify.
A primary residence does not qualify. Neither does property held primarily for resale, which is how most short-term flips are characterized.
Partnership interests are also excluded, although the underlying real property may qualify if ownership is restructured well in advance of a sale.
How Does a 1031 Exchange Work?
Most exchanges are delayed exchanges. The relinquished property sells first, and the replacement property is acquired afterward within two fixed deadlines.
The 45-day identification period
Replacement property must be identified in writing within 45 days of transferring the relinquished property. The clock starts at closing.
Three identification rules are commonly used. You may identify up to three properties of any value, or any number of properties whose combined value does not exceed 200 percent of the relinquished property.
A third option allows identification beyond those limits if at least 95 percent of the identified value is actually acquired. It carries little margin for error.
The 180-day exchange period
The exchange must be completed within 180 days of the transfer, or by the due date of that year’s tax return including extensions, whichever comes first.
Both periods run concurrently. The 45-day window sits inside the 180-day window rather than adding to it.
Why the proceeds cannot pass through your hands
A qualified intermediary holds the sale proceeds and acquires the replacement property on your behalf. Actual or constructive receipt of the funds generally defeats the exchange.
The intermediary cannot be a disqualified person. That generally includes an agent, attorney, accountant, or broker who has served you within the prior two years.
Reverse and improvement exchanges
When the replacement property must be acquired first, a reverse exchange uses an accommodation titleholder to park title. An improvement exchange funds construction on the replacement property inside the same window.
Both are more complex and more expensive than a delayed exchange, and both are bound by the same deadlines.
How Much Tax Is Actually Deferred?
Full deferral generally requires reinvesting all net proceeds and replacing debt at an equal or greater level.
Boot: cash and debt relief
Anything received that is not like-kind property is boot, and it is taxable to the extent of gain. Cash boot is leftover proceeds.
Mortgage boot arises when debt on the replacement property is lower than debt on the relinquished property, because debt relief is treated as value received.
Adding cash at closing can offset debt relief. Partial exchanges are permitted, so the transaction is not all-or-nothing, but the boot portion is recognized.
Basis and depreciation
The replacement property generally takes a carryover basis, adjusted for additional cash invested. Deferred gain reduces the basis, which is how the liability follows the asset.
Depreciation continues rather than restarting. The exchanged basis generally keeps its remaining recovery period, and only new investment above that amount starts a fresh schedule.
Prior depreciation is deferred, not erased. It remains subject to depreciation recapture on an eventual taxable sale.
What Are the Risks and Limitations?
A failed exchange is a taxable sale
If either deadline is missed, the transaction is treated as a sale and the gain is recognized. Deadlines are not extended for financing delays, failed inspections, or a seller who withdraws.
Identifying more than one viable replacement property is a common way to reduce that exposure.
Related parties, states, and reporting
Exchanges between related parties are restricted, and a two-year holding requirement generally applies on both sides.
Exchanges are reported on Form 8824. Some states require continued reporting after an out-of-state exchange and tax the deferred gain when the replacement property is later sold.
Proposals to limit 1031 deferral have been introduced periodically, so the rules for the year of the transaction should be confirmed.
When Might a 1031 Exchange Not Fit?
Deferral has a cost. Intermediary fees, transaction costs, and a compressed timeline can push buyers toward property they would not otherwise select.
If the gain is small, if capital losses are available to offset it, or if the current-year rate is unusually low, recognizing the gain may be the simpler path.
An exchange also keeps capital concentrated in real estate. Liquidity and diversification goals belong in the analysis alongside the tax result.
Conclusion
A 1031 exchange defers capital gains and depreciation recapture tax when investment real property is exchanged for like-kind real property. It works through a carryover basis, so the liability follows the replacement asset rather than disappearing.
Execution matters as much as eligibility. The 45-day and 180-day deadlines, the qualified intermediary requirement, and the treatment of boot determine whether deferral is full, partial, or lost entirely.
Deciding whether to exchange means weighing deferral against transaction costs, timeline pressure, replacement property quality, and long-term portfolio goals, with an accurate view of the liability being carried forward.
