by the month

by the month

Per month; at a monthly rate. I'm renting this apartment by the month because I could get my next travel assignment at any time.
See also: by, month
Farlex Dictionary of Idioms.

by the month

one month at a time. Not many apartments are rented by the month. I needed a car for a short while, so I rented one by the month.
See also: by, month
McGraw-Hill Dictionary of American Idioms and Phrasal Verbs.
See also:
  • month by month
  • rabbit, rabbit(, rabbit)
  • somewhere between
  • hang out one's shingle, to
  • go bust
  • at this/that rate
  • at that rate
  • be (something) to the good
  • be to the good
  • fudge factor