What is a checking account and how does it work?

Checking accounts are bank accounts maintained by financial institutions in which a customer can deposit and withdraw money. Checking accounts work by quickly and easily letting you add and deposit money in a variety of ways, including with checks, online and mobile banking, including mobile check deposit, with a teller, at ATMs and by using electronic debits or ACH payments. With checking accounts, there is no limit on the number of deposits and withdrawals that can be made in a month.