### Question
How is the term disputable item defined?


### Answer
The term **disputable item** is defined in *26 U.S.C. § 6603* as the following:

> any item of income, gain, loss, deduction, or credit if the taxpayer—


(i) has a reasonable basis for its treatment of such item, and


(ii) reasonably believes that the Secretary also has a reasonable basis for disallowing the taxpayer's treatment of such item

#### Citation:
  - *26 U.S.C. § 6603*
  - Heading: **Subtitle F-Procedure and Administration > CHAPTER 67-INTEREST > Subchapter A-Interest on Underpayments**

