Every deferred exchange runs on two federal clocks, and the shorter one is the 45-day identification period. It begins the moment the relinquished Louisville property closes and gives an investor exactly 45 calendar days to put specific replacement candidates in writing. There is no grace period for a holiday weekend and no extension for a slow escrow officer, so the rule rewards investors who start scouting before their sale even reaches the closing table. Understanding exactly how the window is measured, and which of the three identification methods applies to a given deal, is the difference between a list that holds up and one that quietly disqualifies the whole exchange.
How the Clock Actually Starts
The 45 days begin counting on the closing date of the relinquished property, not the date an exchange agreement is signed or the date funds land with the qualified intermediary. Weekends and federal holidays count against the total, and the only recognized extension applies to investors in a federally declared disaster area. An investor who spends the first two weeks after closing celebrating a sale rather than touring replacement candidates has effectively shrunk a 45-day window down to 31, which is rarely enough time in a competitive corridor like the East End or the Airport submarket near UPS Worldport.
Three Ways to Build the List
The IRS offers an investor three distinct methods for naming candidates, and only one applies to any given exchange. The three-property rule allows up to three replacement properties to be identified regardless of their combined value, which covers the large majority of straightforward exchanges. The 200% rule permits naming more than three properties as long as their combined fair market value does not exceed twice the value of the relinquished property, useful for an investor spreading proceeds across several smaller Bullitt County or Oldham County parcels. The 95% rule removes the count and value caps entirely, but only if the investor actually acquires at least 95% of the total value identified, a threshold that punishes an overly ambitious list severely if even one deal falls apart. Choosing the wrong one of the three at the outset can quietly cap an investor's options for the rest of the exchange without them realizing it until day 40.
Why Louisville Investors Default to the Three-Property Rule
Most single-replacement exchanges out of a Louisville rental or small commercial building use the three-property rule because it is the least restrictive when only one purchase is intended. An investor names a primary candidate, a backup in a different submarket, and a third slot as insurance against financing or inspection surprises, all without worrying about a combined-value ceiling. The 200% rule tends to surface when an investor is deliberately diversifying, say trading one aging strip center on Dixie Highway for interests in three smaller retail parcels across Jeffersontown, St. Matthews, and Middletown, since a fourth or fifth candidate would otherwise be off limits under the three-property cap.
What a Valid Identification Actually Requires
The identification must be a signed written document delivered to the qualified intermediary or another party specified under the regulations, describing each property unambiguously, typically a legal description or unambiguous street address. A text message to a broker, a verbal mention on a phone call, or a draft sitting unsent in an email folder does not satisfy the rule no matter how clearly the investor intended it. Because the delivery itself is what counts, confirming receipt in writing before day 45 closes matters just as much as drafting the list in the first place. Investors sometimes assume the qualified intermediary will chase down a missing confirmation on their behalf, but making sure the list actually arrives on time is the investor's responsibility, not the QI's.
Common 1031 Exchange Questions
Can I identify more than three properties in a Louisville 1031 exchange?
Yes, but only under the 200% rule, which caps the combined value of all identified properties at twice the value of the relinquished property, or the 95% rule, which removes the cap but requires acquiring nearly everything named on the list.
What happens if I miss the 45-day deadline?
The exchange fails and the sale of the relinquished property becomes a taxable event, with capital gains and any depreciation recapture due as if no exchange had been attempted at all.
Does the 45-day period run at the same time as the 180-day deadline?
Yes, both clocks start on the same closing date and run concurrently, so the 45-day identification window is really a shorter deadline sitting inside the larger 180-day exchange period rather than a separate sequential step.
Can I revise my identification list after submitting it?
Only before day 45 passes. Properties can be added, dropped, or swapped freely while the window is still open, but the list locks permanently once the deadline arrives, even if a stronger candidate turns up the next day.
Which identification rule fits a single-replacement purchase best?
The three-property rule almost always fits best, since it lets an investor name a primary target plus two backups without triggering any combined-value ceiling that the 200% and 95% rules impose.
