得とくになる

expression, godan verb (-ru)

be beneficial; do good; bring profit

Describes a situation or action that results in a gain or advantage for someone. Often used in the pattern ～は（人）の得になる.

• この経けい験けんはきっと君きみの得とくになるよ。

  This experience will definitely be beneficial for you.

• 早はやく申もうし込こめば割わり引びきがあり、得とくになる。

  If you apply early, there is a discount, so it is beneficial.