Think in terms of acquisition and disposition dates. With covered calls, your opening transaction is the short sale of the call option. That is the date you opened the position, or your acquisition date. If you closed the position by buying the call back, that is your disposition date. With a long position of a stock, your acquisition date is the date you bought the stock, and the disposition date is the date you sell the stock the stock. With a short option position, your acquisition date is the date you sell, the disposition date is the date you buy back the option or when it expires.