TV series example of the word

Breaking Bad Season 4, Episode 9
How gross income for a business is defined, you're not allowed to do that.

Breaking Bad Season 4, Episode 9
income is income. You're not allowed to not declare it.

Breaking Bad Season 4, Episode 3
So between his pension and the income l bring in from hand modeling,

The Big Bang Theory Season 8, Episode 6
Money's a sensitive subject for Howie because of the difference in our income.

Game of Thrones Season 3, Episode 4
And what did Littlefinger say about this loss of income?