Every deferred exchange under Section 1031 runs on two deadlines, and the shorter one is the 45-day identification period. It starts the day after the relinquished property closes and gives the investor a fixed window to name, in writing, the replacement property or properties they intend to acquire. There is no grace period for a busy closing calendar or a search that started late.
When the Clock Starts and How It Is Counted
The 45 days begin on the day after the sale of the relinquished property closes, not on the day the exchanger decides to start looking or the day the qualified intermediary receives the proceeds. Counting runs on straight calendar days, so weekends and federal holidays are included rather than skipped. If day 45 lands on a Saturday, the deadline does not move to the following Monday.
Because the count is unforgiving, most exchangers who work with a qualified intermediary get a written confirmation of the exact identification and closing dates within a day or two of the relinquished sale, rather than estimating from memory later in the process.
The Three Identification Rules
An investor has to identify replacement property under one of three published rules, and the choice determines how many properties can go on the list. The three-property rule allows up to three properties to be named regardless of their combined value, which covers the large majority of exchanges involving a single relinquished asset. The 200% rule allows more than three properties as long as their combined fair market value does not exceed twice the value of what was sold. The 95% rule removes the count and value caps entirely, but only if the exchanger actually closes on at least 95% of the identified value, a standard that is difficult to meet if the list includes long-shot candidates.
Picking a rule is not optional paperwork. It shapes how the search is built from the start, since a list assembled under the three-property rule looks very different from one built to satisfy the 200% rule.
What Counts as a Valid Written Identification
Identification has to be unambiguous and in writing, signed by the exchanger, and delivered to the qualified intermediary or another party permitted under the exchange agreement before midnight on day 45. Each property needs enough detail to remove any doubt about what was named, which in practice means a legal description or a specific street address rather than a general description of the type of property being sought.
A phone call to a broker, a text message describing a neighborhood, or an email that says the exchanger is considering a property without naming it does not satisfy the requirement. If the correct written notice does not reach the correct party in time, the exchange fails on that basis alone, regardless of how close the investor was to a signed contract.
Where Tennessee Exchangers Run Into Trouble
Timing pressure varies across the state. Investors searching in Nashville and the surrounding Middle Tennessee counties are often competing for the same well-priced multifamily and industrial listings as other 1031 buyers, which can force decisions inside 45 days that would normally take longer. Memphis and Knoxville see similar competition in certain asset classes, while Chattanooga and smaller markets tend to move at a more negotiable pace, though inventory can still be thin for a specific property type.
A search that begins only after the relinquished property closes is starting the clock and the due diligence at the same time, which leaves little room to recover if a preferred property falls through mid-search.
How the Identification List Feeds the Rest of the Exchange
Once day 45 passes, the list is locked for the remainder of the exchange. The task shifts from finding candidates to closing on one or more of the properties already named, inside the 180-day period that started on the same day as identification. A property that surfaces after the window closes cannot be substituted onto the list, no matter how much stronger it looks than what was already named.
An identification can be revoked and replaced with a new written notice any time before the 45-day deadline itself, which gives some room to swap in a better candidate discovered late in the search, as long as the replacement notice reaches the qualified intermediary before the window closes.
Common 1031 Exchange Questions
Does the 45-day period ever get extended?
Only in narrow, federally declared disaster relief situations. Outside of those circumstances, investors should plan as if no extension will be granted.
Which identification rule should most exchangers use?
The three-property rule covers most single-relinquished-property exchanges. The 200% and 95% rules matter more for investors identifying several smaller properties or diversifying into multiple replacements.
Can an identification be changed after it is submitted?
Yes, as long as the change happens before day 45. A new written notice delivered before the deadline replaces an earlier list entirely.
What happens if the 45-day deadline is missed?
The exchange fails and the transaction is treated as a taxable sale. There is no way to identify replacement property after the window closes.
Does a verbal agreement with a seller count as identification?
No. Identification must be a signed written notice describing the property with a legal description or unambiguous address, delivered to a permitted party before the deadline.
