### Question
How is the term taxable period defined?


### Answer
The term **taxable period** is defined in *26 U.S.C. § 4980I* as the following:

> the calendar year or such shorter period as the Secretary may prescribe

#### Citation:
  - *26 U.S.C. § 4980I*
  - Heading: **Subtitle D-Miscellaneous Excise Taxes > CHAPTER 43-QUALIFIED PENSION, ETC., PLANS**

