The 45 Day Identification Period

The forty-five day identification period is one of the two fixed clocks that govern every 1031 exchange, and it begins to run the moment title to the relinquished property transfers to the buyer, not on the date the investor signs the exchange agreement and not on the date funds arrive at the Qualified Intermediary. From that closing date, an investor in Jacksonville, Florida has exactly forty-five calendar days, including weekends and holidays, to identify in writing the real property or properties that may become the replacement for the exchange. There is no administrative process for extending this window absent a federally declared disaster affecting Duval, Clay, St. Johns, or Nassau County, so the count begins whether the investor is prepared or not.

The Internal Revenue Service recognizes three ways to satisfy the identification requirement, and an investor may use only one per exchange. Under the three property rule, an investor may identify up to three properties of any value without regard to their combined fair market value. Under the two hundred percent rule, an investor may identify more than three properties as long as the aggregate fair market value of everything identified does not exceed two hundred percent of the value of the relinquished property that was sold. Under the ninety-five percent rule, an investor may identify any number of properties of any value, but the exchange is only valid if the investor actually acquires at least ninety-five percent of the aggregate value of everything identified. Most investors working with our team in the Jacksonville market use the three property rule because it is the simplest to satisfy and leaves room to walk away from a property that does not survive due diligence.

Identification must be unambiguous. A legal description, an assessor parcel number, or a specific street address is sufficient. A general statement such as an intent to acquire a multifamily property somewhere in Duval County will not satisfy the requirement. The identification must be signed by the investor and delivered to a party involved in the exchange who is not a disqualified person, most commonly the Qualified Intermediary holding the exchange proceeds, before midnight of day forty-five. Delivery by fax, overnight courier, or email to the intermediary is generally acceptable as long as there is a clear, verifiable record of timely delivery.

A common misunderstanding is that the forty-five day period and the one hundred eighty day closing period run one after another. They do not. Both periods begin on the same closing date and run concurrently, which means an investor who uses the full forty-five days to identify property still has only one hundred thirty-five remaining days to close on whatever was identified. In a market like Jacksonville, where industrial space near JAXPORT and multifamily assets in growth corridors such as Nocatee and the Southside can move quickly, waiting until day forty of the identification window to start a property search materially increases execution risk.

Investors sometimes ask whether they can identify a property, then substitute a different one before day forty-five expires. Revocation and replacement are permitted at any time before the forty-five day deadline, provided the substitute identification is also delivered in writing before midnight of day forty-five. Once the deadline passes, the identification list is locked, and any property acquired after day forty-five that was not on the list cannot be part of the exchange.

We help investors in the Jacksonville metropolitan area build a working identification strategy before the relinquished property even goes under contract, so the forty-five day clock is a formality rather than a scramble. That includes assembling a shortlist of candidate replacement properties, confirming ownership and title status, and coordinating with the Qualified Intermediary on the format and delivery method for the written identification notice.

Timing the identification window against local market conditions matters as much as understanding the legal rules. Duval County and the surrounding submarkets of Clay and St. Johns counties have seen active investor demand for industrial and flex space tied to JAXPORT expansion, for multifamily assets in growth corridors such as Nocatee and the Southside, and for single tenant net lease properties along major retail corridors. In a market where well-priced properties can go under contract within days of listing, an investor who waits until the relinquished property closing to begin researching replacement candidates is working against both the calendar and competing buyers. We encourage investors to start compiling a realistic list of candidate properties, including backup options beyond the three primary identifications, well before the relinquished property sale is scheduled to close.

It is also worth understanding what the identification notice does not require. The investor does not need to have a signed purchase contract on an identified property by day forty-five, only a sufficiently specific written description delivered to the Qualified Intermediary or another eligible party. This distinction matters because it allows an investor to identify a property that is still being negotiated, still in early due diligence, or even a property the investor has not yet made an offer on, as long as the description is unambiguous. That said, identifying a property without having contacted the seller or confirmed basic availability carries practical risk, since the exchange still needs a completed closing within one hundred eighty days regardless of how the identification notice was worded.

Investors who are identifying multiple properties, whether under the three property rule or the two hundred percent rule, should also think through sequencing. If more than one identified property is likely to close, the exchange documentation, financing applications, and title work for each should proceed in parallel rather than sequentially, since all closings still need to fit inside the same one hundred eighty day period regardless of when identification occurred. We help investors sequence these parallel workstreams so that identifying multiple properties does not simply shift the bottleneck from finding property to closing on it in time.