IPA: /ˈkæriˌbæk/
KK: /ˈkɛriˌbæk/
A tax loss or credit that can be used to reduce the amount of income or taxes from a previous year.
The company was able to use a carryback to reduce its tax liability from last year.
Carryback → It is formed from "carry" (from Old English "carian", meaning to transport or bear) and "back" (meaning to return to a previous position). The word "carryback" refers to the act of transporting something back to a previous place or time.
Think of 'transporting' something ('carry') 'back' to where it was before — that's what carryback means.