Defer recognition of gain on like-kind real-property exchanges using a qualified intermediary and strict 45-/180-day timelines — a deferral mechanism, not forgiveness.
What it is
A 1031 exchange defers recognition of gain when real property held for productive use in a trade or business or for investment is exchanged solely for other qualifying real property. Gain is recognized only to the extent the taxpayer receives money or non-like-kind property (boot). The deferred gain reduces basis in the replacement property, so future depreciation and exit economics must be modeled up front. Since 2017 it applies only to real property — it is a deferral mechanism, not forgiveness.
Where it fits
Exchanges are used to reposition capital while preserving tax efficiency — moving from active to passive, consolidating, diversifying, or shifting geography. The strongest exchanges reflect a real portfolio decision and still make sense on pre-tax fundamentals.
Eligibility & the deadline system
- Both relinquished and replacement property must be held for investment or business use; primary residences and property held primarily for sale do not qualify.
- The transaction must be structured as an exchange — constructive receipt of proceeds can turn it into a taxable sale.
- Identify replacement property within 45 days in a signed written document; receive it within the earlier of 180 days or the return due date (with extensions).
- Up to three properties regardless of value, or any number under the 200% rule, with a 95% fallback.
How it works in practice
Most deferred exchanges use a qualified intermediary (QI). The QI holds the funds and the exchange agreement must limit the taxpayer’s right to receive, pledge, or borrow them. Debt matters: if debt relief is not offset by qualifying replacement debt or additional capital, the economics can shift into recognized gain.
Documentation that holds up
- Pre-sale decision memo and QI engagement documents
- Assignment and notice documents; signed 45-day identification
- Financing and debt-replacement analysis; closing statements for both legs
- Basis and deferred-gain workpapers; related-party analysis if applicable; Form 8824 reporting
Edge cases & when another path fits
Related-party exposure, reverse and improvement exchanges (EAT structures), and “process leakage” — constructive receipt that quietly defeats deferral — are the recurring risks. A taxable sale with broader redeployment, or a charitable structure, may be better when the taxpayer wants to fully exit or the replacement universe is weak.
Frequently asked questions
Can I exchange a primary residence?
No — it must be real property held for business or investment use.
What are the main deadlines?
45 days to identify replacement property and 180 days (or the return due date) to receive it.
What is boot?
Money or non-like-kind property received in the exchange, which is taxable to that extent.
Specific eligibility and execution thresholds vary by transaction structure, jurisdiction, and basis composition. This is a starting point for documentation discipline — not a substitute for engaged tax counsel. Nothing here is tax, legal, or investment advice.