The 45-day identification period starts on the day the relinquished property closes and gives the investor a fixed window to name replacement candidates in writing to the qualified intermediary. In Kansas City that window moves fast whenever a candidate sits along an active industrial corridor, and a list built after day thirty is often working against properties that already went under contract to someone else.
Why 45 Days Moves Fast in This Metro
Industrial product along the I-35 and I-70 corridors, and particularly anything near the Edgerton rail intermodal, tends to draw multiple offers quickly once it hits the market, which means a Kansas City investor who waits until the third or fourth week of the identification period to start touring candidates is often choosing from what remains rather than what was originally available.
Johnson County office and retail space moves on a different rhythm, with more availability and slower lease-up in some corridors, but even there a strong replacement candidate at the right price can disappear inside the 45-day window if a search does not start on day one.
Building the Identification List
A working list gets built in stages rather than all at once.
Written Notice Requirements
The identification has to be in writing, signed, and delivered to the qualified intermediary before midnight on the 45th day, and a verbal mention of a property to a broker or an email that does not reach the intermediary does not satisfy the requirement. Kansas City investors working candidates on both sides of the state line should confirm the notice references full addresses or legal descriptions precise enough to remove any doubt about which property was named.
A revised notice can replace an earlier one as long as it is delivered before the 45-day deadline, which gives an investor room to swap a candidate that fell out of contract for a new one discovered later in the window, provided the replacement is identified before the clock runs out rather than after.
Corridor-by-Corridor Timing
A Crossroads or downtown multifamily search can often move efficiently within 45 days because comparable buildings trade with some regularity and pricing data is easier to confirm quickly, while a specialized industrial parcel near Logistics Park KC may need additional time for rail access or environmental review before an investor feels confident naming it, which argues for starting industrial due diligence in the first week rather than waiting. A Johnson County office search sits somewhere between the two, since lease-up data takes longer to confirm than a multifamily rent roll but rarely carries the rail or environmental review an industrial site requires.
Starting Before the Clock Starts
Because the 45-day period cannot be extended, the most effective preparation happens before the relinquished property even closes, with a preliminary candidate list, lender conversations, and broker relationships in Missouri and Kansas already underway. An investor who begins that groundwork during the marketing period of the START EXCHANGE REVIEW enters the 45-day window with real candidates rather than a blank search, since the search itself does not need to wait for the sale to record before it can start in earnest.
Once the 45-day window is running, a Kansas City investor comparing candidates in both states is really managing two separate broker relationships, two sets of closing customs, and sometimes two different appraisal panels, all against one shared deadline. Keeping a simple tracker that shows each candidate's state, expected closing timeline, and financing status side by side makes it easier to see which properties are genuinely ready to be named and which still need more diligence before the notice goes out. That tracker also helps when a candidate falls out of contention late in the window, since the investor can see immediately which backup on the list has the shortest remaining path to closing rather than starting the comparison over from scratch with only a handful of days left.
Common 1031 Exchange Questions
It begins on the day the relinquished property closes, counted as day one, and runs for 45 calendar days with no extension for weekends or holidays.
Yes, as long as a revised written notice reaches the qualified intermediary before the 45-day deadline expires, an earlier identification can be replaced or supplemented.
No, only a signed written notice delivered to the qualified intermediary within the 45-day window satisfies the identification requirement, regardless of how many properties were toured or discussed.
Rail-served industrial sites near the Logistics Park KC corridor draw strong investor demand, so listings in that submarket tend to attract offers sooner, which shortens the effective shopping window inside the 45-day period.
Yes, and doing so is common practice, since preliminary touring, lender conversations, and broker outreach can begin during the marketing period of the sale, leaving only the formal written identification for after closing.
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