retire on

retire on (some amount of money)

To have a certain amount of money in one's savings or pension on which one will survive during retirement. I've been putting together a sizable nest egg to retire on once I turn 65. More and more people are finding out that you can't realistically retire on the state-funded pension alone.
See also: amount, of, on, retire
Farlex Dictionary of Idioms.

retire on something

to quit working and live on something or a particular amount of money. I already have enough money to retire on. I cannot retire on a sum like that!
See also: on, retire
McGraw-Hill Dictionary of American Idioms and Phrasal Verbs.
See also:
  • retire on (some amount of money)
  • fly the nest
  • feather nest
  • feather one's nest
  • feather your nest
  • feather (one's) (own) nest
  • a nest egg
  • nest egg
  • break (one's) egg
  • feather (one's) own nest