Your bank will charge you an overdraft fee, usually $25 to $35 per transaction that pushes the account below zero

When you spend more money than you have in your checking account, the bank covers the difference temporarily. That service costs money. Most banks charge an overdraft fee — a flat amount per transaction that goes negative, not a percentage of how far over you went. A single purchase that takes your account from $10 to -$15 triggers one fee. If three transactions all post on the same day and all go negative, you may face three separate fees.

The fee amount varies by bank. Chase charges $35 per overdraft. Bank of America charges $35. Smaller regional banks and credit unions often charge $25 to $30. Some online banks charge nothing at all, or charge only if you stay negative for more than a day. Your account agreement or the bank's fee schedule will list the exact amount.

The bank does not have to cover the overdraft at all. They choose to, and they charge you for choosing to. If they decline to cover it, the transaction simply fails and you get a non-sufficient funds (NSF) fee instead — usually the same price as an overdraft fee, but the merchant never receives the money.

Key Takeaways

  • Each transaction that takes your account negative triggers a separate overdraft fee, typically $25 to $35, even if you go negative by just a few dollars.
  • Multiple transactions posted on the same day can each generate their own fee, sometimes totaling $100 or more in a single day.
  • Your bank can refuse to cover overdrafts, in which case the transaction fails and you get an NSF fee instead.
  • Overdraft protection linked to a savings account or credit line can prevent fees, but you pay interest on the borrowed amount.
  • Opting out of overdraft coverage stops the fees but means your debit card will decline at the register instead of going negative.

How overdraft fees stack up when multiple transactions post the same day

Banks process transactions in a specific order, usually largest to smallest rather than the order you made them. This matters because it determines which transactions trigger fees. If you have $50 in your account and three transactions post — one for $20, one for $30, and one for $15 — the bank may process the $30 first, leaving you with $20. Then the $20 transaction leaves you with $0. Then the $15 transaction takes you to -$15, triggering one overdraft fee.

But if the bank processes them differently — say, the $15 first, then the $20, then the $30 — you could face three separate fees. The order is not random; it is set by the bank's processing rules. Some banks process in the order transactions actually occurred. Others process largest first. Check your account agreement or call the bank to learn their specific order.

The result is that a single day of spending can generate multiple fees even though you only went negative once. A customer who goes $5 over their balance with three small purchases might pay $75 in fees on a $5 overage. This is why overdraft fees are the largest source of bank revenue from checking accounts — they are not proportional to the actual problem.

What happens to your account while it is negative

Your account stays negative until you deposit money or the bank reverses a transaction. During that time, you cannot use your debit card for new purchases (most banks block it once you are negative). Checks you write will bounce. Automatic bill payments may fail. The bank will not close your account immediately, but they will continue to charge overdraft fees for any new transactions that post while you are negative.

If you stay negative for an extended period — usually 30 to 60 days depending on the bank — the bank may close your account and send the negative balance to a collections agency. This does not happen overnight, but it does happen. The bank reports the closed account to ChexSystems, a checking account history database that other banks check before opening new accounts for you. A closed account for negative balance can make it harder to open a new checking account elsewhere for several years.

Interest does not accrue on the negative balance the way it does on a credit card, but the fees keep coming. If you are negative for a week and three more transactions post, you face three more overdraft fees on top of the original ones.

Overdraft protection as an alternative to fees

Overdraft protection is a service that automatically transfers money from another account (usually a savings account at the same bank) or borrows from a credit line when your checking account would go negative. Instead of paying a $35 overdraft fee, you pay interest on the borrowed amount — typically 7% to 12% annually, calculated daily.

The math usually favors overdraft protection if you stay negative for more than a few days. A $100 overdraft that lasts one week costs roughly $0.13 in interest versus $35 in fees. But if you go negative for just one day, the fee is cheaper. Overdraft protection also requires you to have a linked savings account with a balance, or to be approved for a credit line, which not all customers have.

You can set up overdraft protection through your bank's website or by calling customer service. Some banks offer it automatically; others require you to request it. Ask whether the bank charges a fee just to set it up, and whether there is a minimum transfer amount (some banks will not transfer less than $25, which means small overages still trigger fees).

Opting out of overdraft coverage to avoid fees entirely

You have the right to opt out of overdraft coverage for debit card and ATM transactions. When you do, the bank will decline the transaction instead of covering it and charging a fee. Your card simply will not work at the register. You will not go negative, and you will not pay a fee.

Opting out does not protect you from overdraft fees on checks or automatic bill payments — those can still trigger fees even if you have opted out of debit card coverage. But it stops the most common source of overdrafts: small debit card purchases that you did not realize would push you over.

To opt out, contact your bank directly. Some banks let you do it online through your account settings. Others require a phone call or a visit to a branch. Ask for written confirmation that you have opted out, and keep it. If the bank later charges you an overdraft fee on a debit transaction after you have opted out, you can dispute it and request a refund.

Disputing overdraft fees and requesting refunds

Banks sometimes refund overdraft fees if you ask, especially if it is your first time or if the fee was caused by a bank error. Call the bank and explain the situation. Be specific: "I went $12 over on March 15 and was charged $35. I would like to request a refund of that fee." Banks are more likely to refund if you have been a customer for years, if your account is otherwise in good standing, or if the overdraft was caused by a delayed deposit or paycheck.

If the bank refuses, you can file a complaint with the Consumer Financial Protection Bureau (CFPB) at consumerfinance.gov. The CFPB does not refund fees directly, but it investigates complaints and can pressure banks to change practices. A complaint takes several weeks to process and does not may provide a refund, but it creates a record that may help if you have a pattern of unfair fees.

Some states have laws limiting overdraft fees or requiring banks to offer low-cost alternatives. Check your state's banking regulator website to learn whether your state has protections beyond federal law. A few states cap overdraft fees at one per day or require banks to process transactions in the order received rather than largest-first.

How to avoid going negative in the first place

The simplest approach is to keep a buffer in your checking account — money you do not spend, so that small mistakes do not push you negative. A $100 to $200 buffer catches most accidental overages. This is not always possible if you live paycheck to paycheck, but even $20 or $30 helps.

Set up balance alerts through your bank's app or website. Most banks let you choose a threshold — say, $50 — and will text or email you when your balance drops below it. This gives you time to move money in or pause spending before you go negative. Alerts are usually free.

Track your spending in real time. Do not rely on the balance shown in your app if you know you have pending transactions that have not posted yet. Debit card purchases often take a day or two to show up, so your available balance may be lower than your current balance. Many banks show both; check the "available balance" rather than the "current balance" before you spend.

If you are paid weekly or bi-weekly, time your bills to post after payday. Set up automatic bill payments to run a day or two after you expect your paycheck to land, not before. This reduces the chance of a timing mismatch that leaves you negative between paychecks.

Frequently Asked Questions

Can the bank charge me multiple overdraft fees for a single purchase?

No. One transaction that goes negative generates one fee. But if you make three separate purchases on the same day and all three go negative, you face three separate fees. The bank charges per transaction, not per day.

What is the difference between an overdraft fee and an NSF fee?

An overdraft fee is charged when the bank covers your negative balance. An NSF (non-sufficient funds) fee is charged when the bank refuses to cover it and the transaction fails instead. Both usually cost the same amount, around $25 to $35, but only the overdraft fee results in money leaving your account.

If I go negative, do I have to pay the bank back?

Yes. The negative balance is money the bank lent you. You must deposit enough to bring the account back to zero. If you do not, the bank will eventually close the account and send the debt to collections. This can affect your credit and make it harder to open a new bank account.

Will going negative hurt my credit score?

Not directly. Overdrafts do not appear on your credit report unless the account is closed and sent to collections. But a collections account will hurt your credit. If you stay negative for 30 to 60 days without paying it back, the bank may close the account and report it, which does damage your score.

Can I get a refund if the bank charged me overdraft fees unfairly?

Sometimes. Call the bank and ask. They may refund one or two fees if you have a good history or if the overdraft was their error. If they refuse, you can file a complaint with the Consumer Financial Protection Bureau, though this does not may provide a refund.