### Question
How does the law define disputable item?


### Answer
Under *26 U.S.C. § 6603*, **disputable item** is defined as:

> 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**

