What an overdraft is and how it happens

An overdraft occurs when you withdraw or spend more money than you have in your account. Your bank covers the shortfall temporarily, but you now owe that money back to the bank. The bank is essentially giving you a short-term loan without you formally asking for one.

Overdrafts happen in different ways. You might write a check for more than your balance, use your debit card at a store, set up an automatic bill payment, or withdraw cash from an ATM. In each case, if your account balance drops below zero, you have overdrawn your account.

Not every transaction that would overdraw your account actually does. Some banks decline the transaction and charge you a fee for the attempt. Others allow it to go through and charge you a separate overdraft fee. The rules depend on your bank and the type of account you have.

Key Takeaways

  • An overdraft means your account balance went negative because you spent more than you had, and your bank covered the difference.
  • Banks charge overdraft fees (typically $25 to $35 per transaction) when they allow a transaction to go through on an overdrawn account.
  • You can opt out of overdraft coverage for debit card and ATM transactions, which means those transactions will be declined instead of triggering a fee.
  • The money you overdrawn is a debt you owe the bank and must repay, separate from any fees charged.
  • Overdraft protection, offered by some banks, links your checking account to a savings account or credit line to prevent overdrafts automatically.

How overdraft fees work

When your bank allows a transaction to go through on an overdrawn account, they charge you an overdraft fee. This fee is separate from the amount you overdrawn. If you spend $50 more than you have and your bank charges a $35 overdraft fee, you now owe the bank $85 total: the $50 you spent plus the $35 fee.

The fee amount varies by bank. Most banks charge between $25 and $35 per overdraft transaction. Some banks charge a lower fee for the first overdraft in a statement period, or a higher fee if you overdraw multiple times in a short window. A few banks charge no overdraft fees at all, though this is less common.

Banks also set limits on how many overdraft fees you can be charged in a single day. Federal rules require banks to cap overdraft fees at a reasonable amount, but the specific cap depends on your bank's policies. If you overdraw your account five times in one day, you might be charged five separate fees, or your bank might cap it at two or three.

Opting out of overdraft coverage

Federal law gives you the right to decline overdraft coverage for debit card purchases and ATM withdrawals. If you opt out, transactions that would overdraw your account will simply be declined at the point of sale. You will not be charged an overdraft fee, but the transaction will not go through.

This is different from checks and automatic bill payments. You cannot opt out of overdraft coverage for those — your bank can still cover them and charge you a fee if your balance is too low. The opt-out right applies only to debit card swipes and ATM cash withdrawals.

To opt out, contact your bank directly. You can usually do this by phone, in person at a branch, or through your online banking portal. Ask to decline overdraft coverage for debit and ATM transactions. Your bank is required to honor this request, though it may take a few business days to take effect.

Overdraft protection as an alternative

Some banks offer overdraft protection, which automatically prevents overdrafts by linking your checking account to another account you own. When a transaction would overdraw your checking account, the bank transfers money from your linked savings account, money market account, or credit line instead.

This protects you from overdraft fees, but it comes with its own costs. If you transfer from a savings account, you may lose interest on that money. If you transfer from a credit line, you pay interest on the borrowed amount. Some banks charge a small fee (usually $5 to $10) for each transfer, even though you avoid the larger overdraft fee.

Overdraft protection only works if your linked account has enough money in it. If you link your checking account to a savings account with $200, and you overdraw by $500, the bank will transfer the $200 and you will still overdraw by $300 on top of that. You will then owe the overdraft fee on the remaining $300.

What happens after you overdraw

After your account goes negative, you have a window of time to bring it back to zero or positive. Most banks give you a few business days. During this time, the negative balance is still your debt to the bank. If you deposit money before the deadline, the overdraft is resolved and you pay only the overdraft fee (if one was charged).

If you do not repay the overdrawn amount within the bank's timeframe, the bank may close your account and report you to a checking account reporting system called ChexSystems. This makes it harder to open a new checking account at other banks for several years. Some banks also pursue collection action or small claims court for larger overdrafts.

Banks are required to notify you when your account is overdrawn. They typically send an email, text message, or paper notice. Read these notices carefully — they tell you the deadline to repay and what happens if you do not.

Overdraft fees and your budget

Overdraft fees add up quickly if you overdraw repeatedly. A single $35 fee is manageable, but if you overdraw three times in a month, you have paid $105 in fees alone — money that goes to the bank, not toward the debt you actually owe. Over a year, repeated overdrafts can cost hundreds of dollars.

The best way to avoid overdraft fees is to keep a buffer in your checking account — money you do not plan to spend. Even $100 or $200 cushion prevents most accidental overdrafts. Set up account alerts through your bank's app or website to notify you when your balance drops below a certain amount, like $200 or $500.

If you find yourself overdrawing regularly, it usually signals that your spending is outpacing your income. In that case, overdraft fees are a symptom of a larger budget problem. Consider tracking your spending for a month to see where your money goes, and look for areas where you can cut back.

How overdrafts appear on your banking record

Overdrafts do not appear on your credit report, so they do not directly damage your credit score. However, if your bank closes your account due to repeated overdrafts and reports you to ChexSystems, future banks will see that record when you try to open a new account.

Your current bank will see all overdrafts in your account history. If you apply for a loan or credit card, the lender may pull your banking history and see overdraft patterns. This can influence their decision, though it is not as serious as a missed credit card payment or loan default.

If an overdraft goes unpaid long enough, your bank may send it to a collection agency. At that point, it can appear on your credit report as a collection account, which does damage your credit score significantly.

Frequently Asked Questions

Can I get an overdraft fee reversed?

Many banks will reverse one overdraft fee per year if you ask, especially if you have been a customer for a while and do not overdraw often. Call your bank's customer service line and explain the situation. There is no may provide they will reverse it, but it is worth asking. Banks are more likely to help if the overdraft was caused by a bank error rather than your own mistake.

What is the difference between an overdraft and a bounced check?

A bounced check occurs when your bank declines to cover an overdraft — the check is returned unpaid. You pay a bounced check fee (usually $25 to $35) and the person or business you wrote the check to may also charge you a fee for the returned check. An overdraft means the bank covered the check and you pay an overdraft fee instead.

Does overdraft protection cost money?

Overdraft protection itself is usually free to set up, but using it costs money. If you transfer from a savings account, you lose interest on that money. If you transfer from a credit line, you pay interest. Some banks charge a small transfer fee ($5 to $10) each time the protection kicks in.

Will an overdraft affect my ability to open a new bank account?

A single overdraft will not prevent you from opening a new account. However, if your bank closes your account due to repeated overdrafts and reports you to ChexSystems, other banks will see this record and may deny your application. You can still open an account at some banks even with a ChexSystems record, but your options are more limited.

How long does a bank have to notify me about an overdraft?

Banks must notify you of an overdraft, but the timing varies. Most banks send notification within one business day of the overdraft occurring. Check your bank's account agreement or contact them directly to learn their specific notification timeline and preferred method (email, text, phone call, or paper mail).