What happens when you overdraft your account
When you spend more money than you have in your checking account, your bank can cover the difference—that is called an overdraft. The bank lends you that money for a few days or hours, then charges you a fee (usually $25 to $35 per transaction) when the overdraft settles. You do not trigger an overdraft by accident; your bank has to have overdraft protection turned on, and you have to make a transaction that exceeds your balance.
The transaction goes through even though you do not have the funds. A few hours or days later, depending on when the bank processes it, the overdraft fee hits your account. If you do not deposit money to cover the negative balance within a set time—usually 5 to 10 business days—the bank may close your account and report you to ChexSystems, a checking account history database that other banks use to decide whether to open accounts for you.
Not all banks offer overdraft protection. Some decline transactions that would overdraft you instead, which means your debit card is simply refused at the register. Others allow overdrafts only on certain transaction types: checks and ACH transfers often overdraft, while debit card purchases sometimes do not.
Key Takeaways
- Overdraft protection must be turned on in your account settings; it is not automatic at most banks, though some enable it by default.
- Each overdraft transaction triggers a separate fee, so spending $5 over your balance on three different purchases costs three fees, not one.
- You have a grace period—usually 5 to 10 business days—to deposit money and bring your account positive before the bank closes it or reports you.
- Overdraft fees compound quickly; a single $100 overdraft can cost $25 to $35 in fees plus interest if you carry the negative balance for weeks.
- Some banks cap overdraft fees per day or per month, and some waive one or two per year if you have a good history.
How to turn overdraft protection on or off
Log into your bank's website or mobile app and look for account settings, preferences, or protection options. Most banks have a toggle or checkbox labeled "overdraft protection" or "overdraft coverage." Turning it on means the bank will cover transactions that exceed your balance. Turning it off means transactions will be declined instead.
Some banks also offer overdraft lines of credit, which work differently from standard overdraft protection. Instead of charging a per-transaction fee, the bank treats the overdraft like a small loan with interest. You pay interest on the negative balance, not a flat fee. This can be cheaper if you overdraft for only a day or two, but more expensive if the negative balance sits for weeks.
If you cannot find the setting online, call your bank's customer service line. They can tell you whether overdraft protection is currently on, what your overdraft limit is (if any), and what fees apply. Write down the fee amount and the grace period—both vary by bank.
Why overdraft fees add up so fast
Each separate transaction that overdrafts your account triggers its own fee. If you make three purchases on the same day and all three overdraft you, you pay three fees—not one. Some banks process transactions in the order that costs you the most fees: they post the largest transaction first, then smaller ones, so more of them overdraft.
A fee waiver or courtesy overdraft is when your bank forgives one or two overdraft fees per year if you have a clean history. This is not a right; it is a discretionary decision the bank makes. If you call and ask politely after your first overdraft, many banks will remove the fee once. After that, they usually will not.
Interest also accrues on negative balances. If you overdraft $100 and do not deposit money for two weeks, you pay the overdraft fee plus interest on that $100 for 14 days. The interest rate varies by bank but is usually 18% to 24% annually, which means you owe roughly $0.50 to $0.70 in interest per week on a $100 overdraft.
What to do if you overdraft and cannot cover it immediately
Contact your bank as soon as you realize you are negative. Explain what happened and ask whether they can waive the fee or extend your grace period. Banks are more likely to help if you have been a customer for years, have no history of overdrafts, or if the overdraft was caused by a bank error (a delayed deposit, for example).
Deposit money to cover the negative balance before the grace period ends. If your grace period is 10 business days and today is Monday, you have until the following Monday to get your account positive. If you miss that deadline, the bank will close your account and may report you to ChexSystems, which makes it harder to open a checking account elsewhere for up to five years.
If you cannot deposit enough to cover the full negative balance, deposit what you can. The bank will apply it to the overdraft first, then to the fee. This reduces the interest that accrues on the remaining negative balance.
How overdrafts affect your banking future
A single overdraft does not appear on your credit report and does not affect your credit score. However, if your account goes unpaid and the bank closes it, they report you to ChexSystems. When you try to open a new checking account at another bank, that bank checks ChexSystems and may decline you.
Some banks have a second-chance checking program for people with ChexSystems records. These accounts often have higher fees, lower balance limits, and require a deposit to open. You can remove yourself from ChexSystems by disputing the record if you believe it is inaccurate, or by waiting for it to age off (usually five years).
If the bank sells your unpaid overdraft debt to a collection agency, that can appear on your credit report and hurt your credit score. This usually happens only if you owe several hundred dollars and ignore the bank's attempts to collect.
Alternatives to overdraft protection
Turn overdraft protection off and let transactions decline instead. This stops you from spending money you do not have, though it can be embarrassing at the register. Many people find this the cheapest option because they avoid fees entirely.
Link a savings account to your checking account for overdraft transfer protection. When you overdraft your checking account, the bank automatically transfers money from savings to cover it. You pay a small transfer fee (usually $10 to $15) instead of an overdraft fee, and you avoid going negative.
Use a prepaid debit card or a bank account designed for people who overdraft frequently. These accounts have lower fees, smaller overdraft limits, or no overdraft option at all. They are meant to prevent you from going deep into the red.
How to avoid overdrafting in the first place
Keep a buffer in your checking account—money you do not spend. Many people keep $100 to $500 as a cushion so that small mistakes do not overdraft them. This is the simplest way to avoid fees.
Check your balance before making large purchases or paying bills. Many banks offer balance alerts: you can set the app to notify you when your balance drops below a certain amount (say, $200). This gives you time to deposit money before you overdraft.
Understand the timing of your deposits and withdrawals. If you are paid on Friday but your rent check clears on Thursday, you will overdraft unless you keep extra money in the account. Knowing your paycheck schedule and your bill due dates prevents surprises.
Turn off overdraft protection if you do not need it. If your bank allows declined transactions instead, that is often the cheapest option. You can always turn protection back on later if you need it.
Frequently Asked Questions
Can a bank force me to have overdraft protection?
No. Federal law requires banks to ask your permission before turning on overdraft protection for debit card and ATM transactions. However, some banks enable it by default for checks and ACH transfers. Check your account settings or call your bank to confirm what is turned on.
How long do I have to pay back an overdraft?
Most banks give you 5 to 10 business days to bring your account positive before they close it or report you. After that, the debt may go to a collection agency. The exact timeline is in your account agreement or the bank's overdraft policy.
Will an overdraft hurt my credit score?
A single overdraft does not appear on your credit report. However, if the bank closes your account and reports you to ChexSystems, you may be denied when you try to open a new checking account. If the debt goes to a collection agency, that can hurt your credit score.
Can I overdraft my savings account?
Most banks do not allow overdrafts on savings accounts. Savings accounts are regulated differently than checking accounts, and overdraft protection typically applies only to checking. If you need overdraft protection, use your checking account.
What is the difference between overdraft fees and NSF fees?
An overdraft fee is charged when the bank covers a transaction that exceeds your balance. An NSF (non-sufficient funds) fee is charged when the bank declines a transaction because you do not have enough money. If overdraft protection is off, you pay NSF fees. If it is on, you pay overdraft fees.