Once the relinquished property closes, an investor has exactly 45 calendar days to identify replacement property in writing to the qualified intermediary. There is no extension for weekends, holidays, or a slow South Carolina real estate market. The clock starts on the day title transfers, not the day the investor decides to begin looking, and it runs whether or not a suitable replacement has actually been found. Missing it does not shrink the exchange, it ends it, and the deferred gain becomes taxable in the year of the sale.
How the 45-Day Clock Actually Starts
The identification period begins on the closing date of the relinquished property, the same day the deed records at the county courthouse. If a Charleston condo sells on a Tuesday, day one of the 45 is that Tuesday, not the following Monday. Investors who assume the clock starts once the exchange paperwork is fully processed by the qualified intermediary are working from the wrong date, and that misunderstanding is one of the more common ways a deadline gets missed.
Because the count includes every calendar day, a sale that closes in mid-November pushes the identification deadline into the very end of the year, which compresses an already tight search window against the holidays. Investors selling in the fourth quarter should treat that overlap as a planning problem, not an afterthought.
The Three-Property Rule
Most exchanges use the three-property rule, which allows an investor to identify up to three replacement properties without regard to their combined value. An investor selling a single Greenville rental could name a duplex in Spartanburg, a small retail building in Anderson, and a condo in Myrtle Beach, and closing on any one, two, or all three would satisfy the identification requirement. The rule exists precisely because deals fall through, and having backup identifications protects the exchange if the first-choice property loses financing or an inspection turns up a problem.
The 200% Rule
An investor who wants to identify more than three properties can do so under the 200% rule, as long as the combined fair market value of everything identified does not exceed 200% of what the relinquished property sold for. This rule tends to come up when an investor is casting a wider net across South Carolina markets, naming properties in both the Charleston coastal corridor and the Upstate around Greenville, and is not yet sure which market will produce a closable deal first.
The 95% Rule
The 95% rule is the fallback for an investor who identifies more properties than the 200% rule allows. It requires acquiring at least 95% of the total value of everything identified, which in practice means closing on nearly every property named. Because that bar is difficult to clear, the 95% rule is rarely chosen on purpose. It usually surfaces as a correction after an investor has already exceeded the three-property and 200% limits and needs a way to keep the exchange valid.
Why South Carolina Closings Complicate the Count
South Carolina requires an attorney to conduct real estate closings, and attorney scheduling in smaller Midlands and Upstate counties can move slower than in Charleston or Columbia, where exchange work is more routine. An investor who identifies a replacement property in a county with limited closing-attorney availability should confirm early that a closing date inside the 180-day window is realistic, since a tight identification list built around a property that cannot close on time defeats the purpose of the backup rules described above.
Frequently Asked Questions
Does the 45-day period pause for weekends or holidays in South Carolina?
No. The count runs on calendar days with no adjustment for weekends, state holidays, or closing-office availability, so the deadline date is fixed the moment the relinquished property closes.
Can an identification be changed after it is submitted?
Yes, as long as the change is made and delivered to the qualified intermediary before the 45-day window closes. Once the deadline passes, the list is locked.
What happens if none of the identified properties can be purchased?
The exchange fails and the deferred gain becomes taxable for the year of the relinquished property sale, which is why most investors identify more than one property under the three-property or 200% rule.
Does identifying a property mean the investor is obligated to buy it?
No. Identification is a notice requirement, not a purchase commitment. An investor can identify three properties and close on only one without violating the exchange rules.
How does a South Carolina statewide search affect the identification strategy?
Casting a search across markets like Charleston, Columbia, Greenville, and Myrtle Beach gives more backup options, but it also means confirming closing-attorney availability in each county before relying on any single identification.