Overdrafting usually happens by accident: an automatic bill comes out a day earlier than expected, a hotel holds more money than you thought, or a deposit hasn't cleared yet. What happens next depends far more on your bank's policy than on the amount you overspent.
How an overdraft works
An overdraft occurs when a payment is larger than your available balance. The bank can refuse the payment, or it can pay it anyway and lend you the difference for a short time. When it pays, a traditional bank charges an overdraft fee for each transaction it covers. A $4 coffee can therefore cost $30 or more.

In the US, banks generally can't charge overdraft fees on everyday one-time debit card purchases and ATM withdrawals unless you have opted in to that coverage. Checks, automatic bill payments and recurring debits can still trigger fees without opting in.
What it costs now
Overdraft fees have shifted a lot in the past few years. Several large banks — including Capital One, Citi and Ally — have eliminated overdraft fees on consumer accounts, while others cut them to around $10 or added grace periods. A federal rule that would have capped overdraft fees at large banks was overturned in 2025, so traditional fees of around $35 still exist at some banks. Bankrate's 2025 checking survey put the average at about $27.

What happens if you don't fix it
A negative balance doesn't go away by itself. Some banks charge an extended overdraft fee after several days. If the account stays negative for weeks, the bank may close it and send the amount to a collection agency. Banks also report closed accounts with unpaid balances to consumer reporting agencies such as ChexSystems, which can make it harder to open a new checking account for years.
How to get an overdraft fee refunded
Call or chat with your bank as soon as you've deposited enough to cover the negative balance. Explain what happened and ask if they can waive or refund the fee. Many banks will do this once, particularly for long-standing customers. Be polite and specific — "I've brought the account back to positive; could you refund the overdraft fee from Tuesday?" works better than a general complaint.
How to avoid it next time
Low-balance alerts by text or app are the simplest fix. Linking a savings account for overdraft protection usually costs little or nothing. If you'd rather have a payment declined than pay a fee, don't opt in to debit card overdraft coverage — or switch to a bank that doesn't charge overdraft fees at all.



