dual-income couple; both spouses working
Refers to a married couple where both partners are employed. Often used in discussions of household finances, childcare, and work-life balance.
Recently, the number of dual-income households has been increasing.
When both spouses work, sharing household chores is important.
共働き alone means 'both working' and can refer to any couple or pair, while 夫婦共働き explicitly specifies a married couple.
専業主婦 refers to a full-time homemaker, the opposite situation where one spouse (typically the wife) does not work outside the home.
Compound of 夫婦 (ふうふ, 'married couple') and 共働き (ともばたらき, 'both working').