The 45-day identification period is the first hard deadline in a delayed 1031 exchange, and it starts counting the moment the relinquished property closes escrow, not when the investor feels ready to search. By day 45, one or more replacement properties have to be described in writing and delivered to the qualified intermediary, and that clock runs on calendar days including weekends and holidays. There is no extension for a slow closing on a Franklin office building or a stalled negotiation on a Murfreesboro retail center. Understanding exactly what counts as identification, and which counting rule applies to a given list, is what separates a clean exchange from one that unravels in week seven.
When The Clock Actually Starts
The 45-day count begins on the closing date of the relinquished property, the same day title transfers to the buyer. Investors sometimes assume the window opens once the sale proceeds land with the qualified intermediary, but the IRS ties the deadline to the closing date itself. A Nashville seller who closes on a Wednesday has identification due 45 calendar days later, and that date does not shift because the intermediary was slow to set up the exchange account or because a holiday fell inside the window.
Because the count is unforgiving, the search for replacement property should start well before the relinquished sale closes. Touring candidates, reviewing rent rolls, and narrowing a shortlist during the due diligence period on the sale gives an investor real options on day one instead of a blank search against a running clock.
The Three Rules For Building A Valid List
The IRS allows three different ways to structure an identification list, and choosing the right one depends on how many properties an investor wants to consider. The three-property rule lets an investor identify up to three replacement properties of any value, with no cap on combined price. The 200% rule allows more than three properties as long as their combined fair market value does not exceed 200% of what the relinquished property sold for. The 95% rule removes both the count and value caps, but only if the investor ends up acquiring at least 95% of the total value of everything identified.
- Three-property rule: up to three properties, any value, most commonly used
- 200% rule: unlimited properties if combined value stays under twice the sale price
- 95% rule: unlimited properties, but nearly everything identified must actually close
What Counts As A Valid Written Description
Identification has to be unambiguous, meaning a legal description or a street address that matches title records, delivered in writing to the qualified intermediary before the deadline. A verbal mention to a broker, a text message describing a property in general terms, or an email discussing possibilities with an agent does not satisfy the requirement. We see this trip up investors who assume that because their intermediary was copied on a chain of emails somewhere, the property was properly identified. It was not, unless a specific, signed description was delivered directly to the QI.
In a market like Middle Tennessee, where a Green Hills medical office or a Mount Juliet retail pad can go under contract with a competing buyer while an investor's own sale is still pending, having pre-vetted candidates ready to name in writing on day one, rather than day 40, protects against losing the top choice on the list.
Choosing The Right Rule For The Situation
Most single-replacement exchanges fit cleanly under the three-property rule. An investor comparing a Brentwood industrial building against a Spring Hill flex space and a DST allocation as a backup rarely needs more than three named candidates. The 200% rule earns its keep when an investor is spreading proceeds across several smaller properties, such as multiple net-lease pads, and wants room to name more than three without tying success to any single deal closing. The 95% rule is rare in practice because it requires acquiring almost everything named, which removes the flexibility that makes identification useful in the first place.
What Happens After Day 45
Once identification is delivered, the list locks except for narrow revocation rights that only apply before the deadline itself. After day 45 passes, the remaining balance of the 180-day exchange period goes entirely to due diligence, financing, and closing on whatever survived the list. An investor who names a single property under the three-property rule with no backup, and then loses financing on that property in week nine, has no fallback left and the exchange fails outright. Naming at least one realistic backup, even under the simplest rule, is the difference between a setback and a failed exchange.
Common Questions
Does the 45-day clock start at closing or when funds reach the intermediary?
It starts on the closing date of the relinquished property, the day title transfers. It does not depend on when the sale proceeds actually arrive at the qualified intermediary.
Can an identified property be swapped for a different one after day 45?
No. Revocation and changes are only allowed before the 45-day deadline passes. Once the deadline closes, the list is final regardless of what happens to a named property afterward.
Is a signed letter of intent enough to identify a property?
No. Identification requires an unambiguous written description, typically a legal description or address, delivered directly to the qualified intermediary, not a letter of intent or a verbal understanding with a broker.
Which identification rule do most Nashville investors use?
The three-property rule covers most single-replacement exchanges cleanly. The 200% rule tends to come up when proceeds are being split across several smaller properties.
Can a DST interest be named alongside a direct property purchase?
Yes. DST interests can sit on the same identification list as a direct purchase, which is a common way to give an exchange a predictable backup option.