An overdraft occurs when you don't have enough money in your account to cover a purchase or payment, and the bank allows that purchase or payment to go through.
Discover does not charge fees if we pay, return, or decline a transaction. Discover does not charge overdraft fees, insufficient funds fees, and returned item fees. There are also no fees for enrolling in or using any of Discover's Overdraft Services. You can avoid declined transactions by signing up for Discover's Overdraft Services like Overdraft Protection and Balance+.
Balance+ is a no-fee overdraft coverage that applies to your debit card transactions. It is not available to cover checks, ATM/Cash withdrawals, or other electronic payments, such as Zelle®. Repayment is due immediately. Balance+ is provided at our discretion, and we may decline to cover any debit card transaction, for example, if we suspect the transaction is fraudulent. Please review the agreement as other terms and conditions apply.