pay into

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.
See also: pay

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.
See also: pay