### Question
How is the "controlled group of corporations" defined?


### Answer
The term **controlled group of corporations** is defined in *26 CFR § 1.1563-1* as follows -

> any group of corporations which is—

(A) A *parent-subsidiary controlled group* (as defined in paragraph (a)(2) of this section);

#### Citation:
  - *26 CFR § 1.1563-1*
