provizija

1. (of a bank) bank fee; commission
   Banka naplaćuje proviziju za svaku uplatu na šalteru. — The bank charges a fee for every payment at the counter.
   Na bankomatu druge banke plaćaš veću proviziju. — At another bank's ATM you pay a higher fee.
2. (of an agent) commission; agent's fee
   Agencija za nekretnine je uzela proviziju od pola kirije. — The real estate agency took a commission of half a month's rent.

The usual verbs are naplatiti/platiti proviziju; bank documents often call the same thing naknada.