§ 1.1361-2. Definitions relating to S corporation subsidiaries.

X, an S corporation, owns 100 percent of Y, a corporation for which a valid QSub election is in effect for the taxable year. Y owns 100 percent of Z, a corporation otherwise eligible for QSub status. X may elect to treat Z as a QSub under section 1361(b)(3)(B)(ii).

Assume the same facts as in Example 1, except that Y is a business entity that is disregarded as an entity separate from its owner under § 301.7701-2(c)(2) of this chapter. X may elect to treat Z as a QSub.

Assume the same facts as in Example 1, except that Y owns 50 percent of Z, and X owns the other 50 percent. X may elect to treat Z as a QSub.

Assume the same facts as in Example 1, except that Y is a C corporation. Although Y is a domestic corporation that is otherwise eligible to be a QSub, no QSub election has been made for Y. Thus, X is not treated as holding the stock of Z. Consequently, X may not elect to treat Z as a QSub.

Individuals A and B own 100 percent of the stock of corporation X, an S corporation, and, except for C's interest (described below), X owns 100 percent of corporation Y, a C corporation. Individual C holds an instrument issued by Y that is considered to be equity under general principles of tax law but would satisfy the definition of straight debt under § 1.1361-1(l)(5) if Y were an S corporation. In determining whether X owns 100 percent of Y for purposes of making the QSub election, the instrument held by C is not considered outstanding stock. In addition, under § 1.1361-1(l)(5)(v), the QSub election is not treated as an exchange of debt for stock with respect to such instrument, and § 1.1361-1(l)(5)(iv) applies to determine the tax treatment of payments on the instrument while Y's QSub election is in effect.