Under provisions predating the constructive sale rules (see Q 7617 to Q 7621) to prevent individuals from using short sales to convert short-term gains to long-term gains or long-term losses to short-term losses, and to prevent the creation of artificial losses, the IRC and regulations provide special rules as follows:
(1) If on the date the short sale is closed, any “substantially identical property” (see Q 7528) has been held by the seller for a period of one year or less, any gain realized on property used to close the sale will, to the extent of the quantity of such substantially identical property, be short-term capital gain.2 This is true even though the stock actually used to close the short sale has been held by the seller for more than one year. This rule does not apply to losses realized on the property used to close the sale.
(2) If any substantially identical property is acquired by the seller after the short sale and on or before the date the sale is closed, any gain realized on property used to close the sale will, to the extent of the quantity of such substantially identical property, be short-term capital gain.3 This is true regardless of how long the substantially identical property has been held, how long the stock used to close the short sale has been held, and how much time has elapsed between the short sale and the date the sale is closed. This rule does not apply to losses realized on the property used to close the sale.