A checking account overdraft is when you spend more money than you have in your account, and your bank covers the difference

When you write a check, use your debit card, or set up an automatic payment for more than your balance, your bank can choose to process the transaction anyway. That shortfall — the negative balance — is the overdraft. Your bank has lent you that money for a few hours or days, and they charge you a fee for doing it. The fee is separate from the amount you owe back; you still have to deposit enough money to cover both the overdraft itself and the overdraft fee.

Not every bank handles overdrafts the same way. Some banks will decline the transaction and charge you a non-sufficient funds (NSF) fee instead. Others will process it and charge an overdraft fee. A few will do both. The key difference is whether the transaction goes through or gets rejected at the point of sale.

Key Takeaways

  • An overdraft occurs when a transaction exceeds your account balance, and your bank covers the difference by lending you money temporarily.
  • Overdraft fees typically range from $25 to $35 per transaction, though the exact amount depends on your bank and can vary by state.
  • You must repay the overdraft amount plus the fee; the fee is not a substitute for returning the money to your account.
  • Opting out of overdraft protection means transactions will be declined rather than processed, preventing overdraft fees but potentially causing other problems.
  • Multiple overdrafts in a short period can trigger account closure or reporting to ChexSystems, which affects your ability to open accounts elsewhere.

How overdraft fees work and what they cost

When your account goes negative, your bank charges you an overdraft fee. This fee is charged per transaction that overdrafts your account, not per day. If you overdraft by $5 on Monday and another $10 on Tuesday, you pay two overdraft fees — one for each transaction. Some banks cap the total number of overdraft fees they will charge in a single day (often three to five), but others do not.

The fee amount varies by bank. Most banks charge between $25 and $35 per overdraft, though some credit unions charge less and some banks charge more. A few banks offer a grace period — usually one business day — during which you can deposit money and avoid the fee. After that window closes, the fee posts to your account. You cannot avoid the fee by depositing money later; once the overdraft posts, the fee is charged regardless of whether you fix the balance afterward.

The total cost of an overdraft can compound quickly. If you overdraft by $50 and your bank charges a $35 fee, you now owe $85. If you do not have that $85 to deposit immediately, your account stays negative. Some banks will then charge you a daily fee for maintaining a negative balance — typically $5 to $10 per day — until you bring the account current.

Overdraft protection versus opting out

Overdraft protection is a service that allows transactions to go through even when your balance is insufficient. It is the default at most banks. When you have overdraft protection enabled and you overdraft, the transaction processes and you pay the overdraft fee. The alternative is to opt out of overdraft protection.

If you opt out, transactions that would overdraft your account are simply declined. You will not pay an overdraft fee, but the transaction fails — your check bounces, your debit card is rejected at the register, or your automatic payment does not go through. Some merchants will retry the payment, and some will charge you a returned-payment fee. Your utility company or loan servicer may report the missed payment to credit bureaus, which damages your credit score.

Opting out prevents overdraft fees but creates a different set of problems. Most people who opt out do so because they cannot afford overdraft fees, but then they face bounced checks, declined payments, and late-payment consequences. The choice depends on whether you think you are more likely to overdraft or more likely to miss a payment entirely.

When your bank can refuse to cover an overdraft

Banks are not required to honor overdrafts. They can decline any transaction, even if you have overdraft protection enabled. This is most common with large transactions — a bank might decline a $500 debit card purchase that would overdraft your account by $400, but process a $20 purchase that overdrafts by $15. Banks use internal rules to decide which overdrafts to cover and which to reject.

If your bank declines an overdraft, you will not pay an overdraft fee, but the transaction fails. You will get a declined message at the register or online. Some banks charge a non-sufficient funds (NSF) fee for declined transactions, typically $25 to $35 — the same amount as an overdraft fee, but charged for a rejected transaction rather than a covered one.

Banks are also more likely to refuse overdrafts if you have a history of overdrafting repeatedly or if your account is flagged for fraud. If you overdraft more than a few times per month, your bank may close your account or report you to ChexSystems, a database that other banks use to screen applicants. A ChexSystems report can make it difficult to open a checking account anywhere for up to five years.

How long you have to repay an overdraft

There is no legal deadline to repay an overdraft, but your bank can close your account if you do not. Most banks will close an account that remains negative for 30 to 60 days. Once your account is closed, your bank may send the debt to a collection agency or pursue it through small claims court, though this is rare for small overdrafts.

If you overdraft and cannot deposit money immediately, contact your bank and explain the situation. Some banks will waive one overdraft fee per year if you ask, especially if you have a good history with them. Others will not negotiate. It is worth asking, but do not assume the fee will be removed.

Once you deposit money to cover the overdraft and the fee, your account returns to normal. The overdraft itself does not appear on your credit report — it is not a loan, and it does not affect your credit score. However, if your bank sends the debt to a collection agency, that collection account will appear on your credit report and will damage your score.

Overdrafts versus NSF fees and bounced checks

These three terms are often confused because they all involve insufficient funds, but they are different transactions with different outcomes. An overdraft is when your bank covers the shortfall and charges you a fee. A non-sufficient funds (NSF) fee is charged when your bank declines the transaction because you do not have enough money. A bounced check is a specific type of NSF — a paper check that is returned unpaid.

The fee amount is usually the same ($25 to $35), but the outcome is different. With an overdraft, the transaction goes through and you owe the bank money. With an NSF fee, the transaction fails and the merchant may charge you an additional returned-payment fee. With a bounced check, the payee (the person or business you wrote the check to) may also charge you a returned-check fee, typically $25 to $50.

If you write a check and it bounces, the person who received it will see that the check was returned. This can damage your reputation with that person or business. If you use a debit card and it is declined, only you and the cashier know. If your bank covers an overdraft, the transaction goes through and nobody knows except your bank and you.

Steps to take if you overdraft

If you see a negative balance in your account, act immediately. First, check your bank's website or app to see the exact negative amount and any fees that have posted. Second, deposit money as soon as possible to cover both the overdraft and the fee. You can deposit cash at an ATM, transfer money from another account, or deposit a check through mobile banking.

Third, contact your bank if you see multiple overdraft fees posted in a short time. Some banks will reverse one fee if you ask, especially if the overdrafts were caused by a processing delay or a bank error. Fourth, review your recent transactions to understand what caused the overdraft. Was it a large purchase you forgot about? An automatic payment that posted earlier than expected? A check that cleared slower than you thought?

Fifth, set up a buffer in your checking account. Keep at least $100 to $200 more than you think you need, so small mistakes do not trigger overdrafts. Sixth, consider setting up low-balance alerts through your bank's app so you get notified when your balance drops below a certain amount. Most banks offer this for free.

Frequently Asked Questions

Can a bank charge me multiple overdraft fees for one transaction?

No. Each transaction that overdrafts your account triggers one overdraft fee. If a single large purchase overdrafts your account, you pay one fee, not multiple. However, if that purchase causes a chain reaction where other pending transactions also overdraft, each of those transactions may be charged separately.

Will an overdraft show up on my credit report?

An overdraft itself does not appear on your credit report and does not affect your credit score. However, if your bank sends the overdraft debt to a collection agency, that collection account will appear on your report and will lower your score. This is rare for small overdrafts but more common if the overdraft is large or remains unpaid for months.

What is the difference between overdraft protection and overdraft fees?

Overdraft protection is the service that allows transactions to go through when your balance is insufficient. Overdraft fees are the charges your bank imposes for using that service. You can opt out of overdraft protection to avoid the fees, but then transactions will be declined instead.

Can I get an overdraft fee waived?

Some banks will waive one overdraft fee per year if you call and ask, especially if you have a good account history. Others have strict policies and will not waive fees. It is worth calling your bank to ask, but do not assume the fee will be removed. If your bank refuses, you can dispute the fee through your state's banking regulator, though success is not may provide.

What happens if I ignore an overdraft and do not deposit money?

Your bank will eventually close your account, usually after 30 to 60 days of negative balance. After closure, your bank may send the debt to a collection agency or pursue it in small claims court. A collection account will appear on your credit report for up to seven years and will make it difficult to open new bank accounts.