What an overdraft is and how it happens

An overdraft occurs when you withdraw or transfer more money than you have in your account, and your bank covers the difference. Your account balance goes negative. The bank is lending you that money, and you owe it back—usually within a few days, though the timeline depends on your bank and the type of transaction.

Overdrafts happen in several 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 transfer money to another account. Each of these can trigger an overdraft if your balance is too low. Some banks process transactions in an order that maximizes overdrafts—for example, posting large transactions before small ones, even if you made the small purchase first—though federal rules now limit this practice.

Not every bank covers overdrafts automatically. Some will decline the transaction instead, which stops the overdraft from happening but may frustrate you at the checkout counter. Others offer overdraft protection, which links your checking account to a savings account or credit line so that money transfers over if you go negative. That transfer usually costs a fee, but it is smaller than an overdraft fee.

Key Takeaways

  • An overdraft means your account balance went negative because your bank covered a transaction you could not afford, and you now owe that money back to the bank.
  • Banks charge overdraft fees—typically $25 to $35 per transaction—and may charge additional fees if your account stays negative for several days.
  • You can opt out of overdraft coverage so transactions decline instead of overdrawing, though this may cause problems at checkout or with automatic bills.
  • Overdraft protection links your checking account to savings or a credit line so money transfers automatically if you go negative, usually for a smaller fee than a full overdraft.
  • If you cannot pay back an overdraft quickly, the bank may close your account and report you to ChexSystems, making it harder to open accounts elsewhere.

How overdraft fees work and what they cost

When your account goes negative, your bank charges an overdraft fee. This fee is separate from the amount you owe back. Most banks charge between $25 and $35 per overdraft transaction, though some charge more. If your account stays negative for several days, many banks charge a second fee—sometimes called a "sustained overdraft fee" or "extended overdraft fee"—which can be $5 to $15 per day or per week depending on the bank.

The fees add up quickly. If you overdraft on a Monday with a $30 fee, then your account stays negative through Friday, you might owe another $25 to $35 in sustained fees on top of the original overdraft amount. A $50 overdraft can cost you $80 to $100 in fees alone. Some banks cap the total fees you can be charged in a single day or month, but not all do.

Federal law does not set a maximum overdraft fee, so banks set their own amounts. However, the Consumer Financial Protection Bureau has stated that overdraft fees should reflect the actual cost to the bank, and some states have begun limiting what banks can charge. Check your bank's fee schedule to see what you would owe if you overdraft.

Opting out of overdraft coverage

You have the right to opt out of overdraft coverage for debit card and ATM transactions. This means if you try to spend more than you have, the transaction will be declined instead of going through and creating an overdraft. You will not be charged an overdraft fee, and you will not owe the bank money.

The catch is that a declined transaction can be embarrassing or inconvenient. Your card will be rejected at the register, or your ATM withdrawal will not go through. For automatic bill payments and checks, opting out does not always prevent overdrafts—some banks still cover these transactions even if you have opted out of debit card coverage, though this is changing under newer rules.

To opt out, contact your bank directly. You can usually do this online, by phone, or in person. Ask them to turn off overdraft coverage for debit card and ATM transactions. Some banks make this easy; others bury the option in their account settings. If you cannot find it, call customer service and ask them to do it for you. You can change your mind and opt back in at any time.

Overdraft protection as an alternative

Overdraft protection is a service that automatically transfers money from another account—usually your savings account at the same bank, or a credit line—if your checking account would go negative. Instead of paying a $30 overdraft fee, you pay a much smaller transfer fee, often $0 to $12 per transfer.

This works only if you have money in the linked account or a credit line available. If your savings account is also empty, the transfer cannot happen and you will overdraft anyway. Some banks offer overdraft protection through a credit card or line of credit, which means you are borrowing at credit card interest rates rather than paying a flat fee—this can be more expensive if you do not pay back the borrowed amount quickly.

Overdraft protection is not automatic. You have to set it up with your bank, and you have to link it to an account you control. Ask your bank what accounts they can link and what the transfer fee is. Compare this to their overdraft fee to see whether protection makes sense for you.

What happens if you cannot pay back an overdraft

If your account stays negative and you do not deposit money to cover it, your bank will eventually take action. Most banks give you a grace period—usually 5 to 10 business days—before they close your account. During this time, they may charge additional fees each day your balance remains negative.

Once your bank closes your account, they will send you a notice. You will owe them the full negative balance plus all fees. They may pursue collection, which means they could sue you, garnish your wages, or report the debt to a collection agency. This debt can stay on your record for years.

Your bank will also report the closed account to ChexSystems, a banking history database. This report makes it very difficult to open a new checking account at another bank for several years. Many banks check ChexSystems before opening an account, and a negative report is often an automatic rejection. Some banks specialize in second-chance accounts for people with ChexSystems records, but these accounts often have higher fees and lower limits.

How to recover from an overdraft

The fastest way out is to deposit money equal to the negative balance plus all fees. Once your account is positive again, the overdraft is resolved. If you cannot deposit the full amount immediately, deposit what you can. Your bank will continue charging daily fees until the account is positive, so even a partial deposit stops the bleeding.

If you have been charged overdraft fees and believe they were unfair or the result of a bank error, you can dispute them. Call your bank's customer service and explain the situation. Ask them to review the transaction order and the fees charged. Some banks will reverse one or two overdraft fees as a courtesy, especially if you have been a customer for a long time or if this is your first overdraft. There is no may provide, but asking costs nothing.

If your account has been closed and reported to ChexSystems, you can request a copy of your report to verify what was reported. You can also dispute inaccurate information. Once you have paid off the overdraft debt, ask your bank in writing to remove the ChexSystems report. Some banks will do this; others will not. The report will eventually age off on its own, usually after five years.

Overdraft vs. other ways to cover a shortfall

When you are short on money, overdraft is not your only option. A personal loan from a bank or credit union typically charges interest but no per-transaction fee, making it cheaper than multiple overdrafts. A credit card advance or purchase also costs interest but gives you a grace period before interest accrues if you pay in full. A payday loan is fast but extremely expensive—often 400% annual interest or higher.

Asking family or friends for a short-term loan costs nothing if they agree. Some employers offer paycheck advances. Some nonprofits and community organizations offer emergency assistance or small loans. None of these are perfect, but each has a lower cost than overdraft fees if you cannot pay back quickly.

The best strategy is to avoid overdraft altogether by tracking your balance, setting up account alerts when your balance drops below a certain amount, and keeping a small buffer of money you do not spend. If you overdraft frequently, it is a sign that your income and expenses are not aligned, and you may need to cut spending or find additional income.

Frequently Asked Questions

Can a bank charge me an overdraft fee if I did not opt in?

For debit card and ATM transactions, no—you must opt in to overdraft coverage, and banks cannot charge overdraft fees if you have opted out. For checks and automatic bill payments, the rules are less clear, and some banks still cover these even if you have opted out. Contact your bank to confirm what is covered under your current settings.

How long do I have to pay back an overdraft?

Most banks expect you to pay back the negative balance within 5 to 10 business days, though they do not always enforce this strictly. The longer your account stays negative, the more fees you accumulate. Your bank's account agreement will specify the exact timeline.

Will an overdraft hurt my credit score?

An overdraft itself does not appear on your credit report unless your bank reports it to a collection agency. However, if your account is closed and the debt is sent to collections, that will damage your credit. Paying back the overdraft quickly prevents this from happening.

Can I overdraft my savings account?

Most savings accounts do not allow overdrafts. If you try to withdraw more than your balance, the transaction will be declined. However, some banks offer overdraft protection that links your savings to your checking account, so money transfers from savings to checking if you go negative.

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

An overdraft means your bank covered the transaction and you owe them money. A bounced check means your bank declined the check because you did not have enough money, and the check was returned to the person who tried to cash it. A bounced check may result in a returned-check fee from your bank and a fee from the other person's bank.