for somebody's benefit

for (one's) benefit

Largely (or solely) to help one. I hope you're not doing that for my benefit—I don't really have a preference at all. I only said that for your sister's benefit, so she won't worry. Honestly, I don't expect this situation to get better any time soon.
See also: benefit
Farlex Dictionary of Idioms.

for somebody’s ˈbenefit

especially in order to help or be useful to somebody: There’s no need to repeat everything for my benefit. I have produced some notes for the benefit of those people who weren’t at the meeting.
See also: benefit
Farlex Partner Idioms Dictionary
See also:
  • for (one's) benefit
  • of benefit
  • plant pears for your heirs
  • (one) would do well to (do something)
  • can do with
  • be in well (with)
  • be well in
  • be well in (with)
  • muscle in on (someone or something)
  • be left (out) in the cold
References in periodicals archive
A legal duty to act for somebody's benefit may arise from 1) statute, ordinance, or other legislative enactment; 2) contract; or 3) the common law.