Miss. Code Ann. § 27-7-101

The definition of the terms “short-term capital gain,” “short-term capital loss,” “long-term capital gain,” “long-term capital loss,” “net short-term capital gain,” “net short-term capital loss,” “net long-term capital gain,” “net long-term capital loss,” “capital gain net income,” “net capital loss,” and “net capital gain” shall be the same as those terms are defined under the provisions of the Internal Revenue Code and the rules, regulations, rulings and determinations promulgated thereunder, unless such definitions are in conflict with other provisions of this chapter, in which case the provisions of this chapter shall control.