The phrase "augment income" is correct and usable in written English.
You can use it when you want to refer to increasing or boosting one's income. For example: "I want to augment my income by taking on some freelance work."
Perhaps the greatest positive force to appear in some time are the Indian tribal councils and economic development boards, many of which support the arts in their own areas, not only to augment income but also out of an awareness of the cultural value of those arts.
Farm households' ability (capability) to make use of adaptation strategies for managing or maintaining mainly farm production and thereby augment income could be influenced by many unobservable factors.
Although the FF2200 monthly salary for 64 hours a year of teaching may augment income, it is not necessarily time well spent if a teaching career is not the ultimate goal, the CEC says.
Investigators are able to participate in international collaborations, contribute to the advancement of therapies and scientific progress, increase skill levels of themselves and their teams, may augment income and may experience increased prestige and credibility.
Education may increase women's opportunities for wage labor and augment incomes.
"You need to augment his income.
Divorced, Arbus continued to take commercial jobs to augment her income.
Danny and Leanna Marley, the owners, raise chickens -- 60,000 of them -- to augment their income from pottery.
He would presumably have endorsed, and collaborated in, any reasonable effort to augment his income.
Mr Ayala and his wife augment their income with two market shops.
Birthday parties being in short supply, Will decides to augment his income by working the bachelor-party circuit.
