1
general::
Phrase(s): pay into something
to pay money into an account. • I intend to pay into my vacation account until I have enough for a nice vacation. • We paid a lot into our savings account this month., Phrase(s): pay something into something [and] pay something
in to pay an amount of money into an account. • Mary paid forty dollars into my account by mistake. • She paid in a lot of money. • I have an account here and I want to pay something in.
McGrawhill's American Idioms And Phrasal Verbs