### Question
How is the "accident year" defined?


### Answer
The term **accident year** is defined in *26 U.S.C. § 846* as follows -

> the calendar year in which the incident occurs which gives rise to the related unpaid loss

#### Citation:
  - *26 U.S.C. § 846*
  - Heading: **Subtitle A-Income Taxes > CHAPTER 1-NORMAL TAXES AND SURTAXES > Subchapter L-Insurance Companies > PART III-PROVISIONS OF GENERAL APPLICATION**

