Question

in the red We need to do something to start making profits. If we're in the red for one more quarter, we're going to go out of business.

Accepted Answer

losing money; when expenses are greater than revenuesnote: This expression comes from the accounting practice of marking debits (subtractions to the account) in red and credits (additions to the account) in black. The opposite of "in the red" is "in the black," meaning profitable.

Idiom	in the red
Meaning	losing money; when expenses are greater than revenues note: This expression comes from the accounting practice of marking debits (subtractions to the account) in red and credits (additions to the account) in black. The opposite of "in the red" is "in the black," meaning profitable.
Example	We need to do something to start making profits. If we're in the red for one more quarter, we're going to go out of business.

Red Account Losing Money Expenses Greater Revenues Note