Most banks will let you overdraft, but only if you opt in or already have overdraft protection
Your bank can prevent overdrafts entirely—and many do by default. If you try to spend more than you have, the transaction simply declines. But most banks offer overdraft protection, a service that covers the shortfall instead, letting the transaction go through. The catch: you pay a fee, usually $25 to $35 per overdraft, and sometimes interest on the negative balance itself.
Whether overdrafting is even possible depends on your account type and what you've chosen. Checking accounts are the only accounts that typically overdraft. Savings accounts, money market accounts, and credit cards don't overdraft in the same way—they either decline or, in the case of credit cards, charge interest on a balance you've carried.
The decision to allow overdrafts is yours to make, though the default has shifted. Federal rules now require banks to get your permission before charging overdraft fees on debit card purchases and ATM withdrawals. Checks and ACH transfers (like bill payments) may overdraft without explicit permission, depending on your bank's policy.
Key Takeaways
- Overdraft protection is optional—you must turn it on, and most banks now require you to opt in separately for debit card and ATM overdrafts.
- Each overdraft typically costs $25 to $35, and fees can stack if multiple transactions post on the same day.
- Some banks offer overdraft lines of credit or links to savings accounts instead of charging per-transaction fees.
- Checks and ACH payments may overdraft your account without your permission, even if you've declined overdraft protection for card purchases.
- Turning off overdraft protection means transactions decline rather than charging you a fee, but it can damage your credit if checks bounce.
How overdraft protection actually works at your bank
When you overdraft, your bank covers the transaction and your balance goes negative. You then owe the bank that amount plus the overdraft fee. If your balance stays negative for several days, some banks charge a daily or weekly fee—often called a "sustained overdraft fee"—until you bring the account back to zero.
The timing matters. Banks process transactions in different orders, and some process larger transactions first. This can cause multiple overdrafts in a single day even if you only overspent by a small amount. For example, if you have $50 and a $100 charge posts before a $30 charge, you might be charged two overdraft fees instead of one, depending on the order your bank uses.
Some banks link overdraft protection to a savings account or a separate line of credit. If you overdraft, the bank automatically transfers money from savings to cover it, or draws from a credit line. These options usually cost less than per-transaction fees—sometimes nothing at all if it's your own savings account, or a small transfer fee of $1 to $5.
Opting in or out of overdraft protection for different transaction types
Banks distinguish between different ways you spend money, and overdraft rules vary by type. For debit card purchases and ATM withdrawals, federal law requires your bank to get your written permission before charging overdraft fees. This is the easiest protection to turn off: you can usually do it online, by phone, or in person, and it takes effect immediately or within one business day.
For checks and ACH transfers (bill payments, peer transfers, automatic payments), the rules are looser. Your bank may allow these to overdraft without your permission, though many now ask you to opt in. Check your account settings or call your bank to confirm what's allowed.
Wire transfers and some other payment types typically cannot overdraft at all—the bank will decline them if you don't have the funds, regardless of your overdraft settings.
What happens if you repeatedly overdraft
A single overdraft won't hurt your credit score. Overdraft fees don't report to credit bureaus. However, if your account stays negative and your bank closes it due to non-payment, that closure can appear on your banking history and make it harder to open accounts elsewhere.
Bounced checks are different. If a check bounces because of insufficient funds, the recipient may report it to ChexSystems, a banking history database. Multiple bounced checks can lock you out of opening new accounts at many banks for several years.
If you overdraft repeatedly and don't repay, your bank may freeze your account, send it to collections, or sue you for the balance. This is rare for small overdrafts but common for accounts that stay negative for months.
Alternatives to overdraft fees
If overdraft protection feels expensive or risky, you have other options. The simplest is to turn it off entirely and let transactions decline. This prevents fees but can be embarrassing at checkout and may cause checks to bounce.
Some banks offer overdraft lines of credit, a small loan that covers overdrafts automatically. These usually charge interest (often 15% to 25% annually) rather than flat fees, and they're cheaper if you overdraft frequently or by large amounts. Others offer savings account links, where overdrafts pull from your savings instead of triggering a fee.
A few banks and credit unions offer no-overdraft accounts or accounts with very low overdraft fees ($5 to $10 instead of $25 to $35). These are less common but worth asking about, especially if you bank with a credit union.
You can also prevent overdrafts by setting up account alerts. Most banks let you receive a text or email when your balance drops below a threshold you choose—$100, $50, or whatever works for you. This gives you time to transfer money in before a transaction posts.
How overdraft fees compare across banks
| Bank Type | Typical Overdraft Fee | Sustained Overdraft Fee | Overdraft Limit |
|---|---|---|---|
| Large national banks | $25–$35 per overdraft | $5–$10 per day or week | $100–$500 |
| Online banks | $0–$15 per overdraft | Rare or none | $0–$200 |
| Credit unions | $15–$25 per overdraft | $5–$10 per day | $100–$500 |
| Second-chance banks | $0–$10 per overdraft | Rare | $0–$100 |
Online banks and second-chance banking programs (designed for people with poor banking history) tend to charge less or nothing at all. Large national banks charge the most. Credit unions fall in the middle and often offer better terms if you maintain a minimum balance or set up direct deposit.
What to do if you've been charged overdraft fees
If you've been charged overdraft fees and believe they're unfair—because the bank processed transactions out of order, charged multiple fees for a single overspend, or you didn't opt in—you can dispute them. Call your bank's customer service line and explain what happened. Many banks will reverse one or two fees as a courtesy, especially if you've been a customer for a while and don't have a history of overdrafts.
If your bank won't reverse the fees, you can file a complaint with the Consumer Financial Protection Bureau (CFPB) at consumerfinance.gov. The CFPB investigates complaints about unfair banking practices and can pressure banks to refund fees or change their policies.
To prevent future overdrafts, turn off overdraft protection for debit cards and ATM withdrawals, set up low-balance alerts, or switch to a bank with lower fees or no overdraft charges.
Frequently Asked Questions
Can my bank overdraft my account without my permission?
For debit card purchases and ATM withdrawals, no—federal law requires your permission. For checks and ACH transfers, it depends on your bank's policy. Some allow these to overdraft automatically; others require opt-in. Call your bank to confirm what's allowed on your account.
What's the difference between overdraft protection and overdraft fees?
Overdraft protection is the service that lets transactions go through when you don't have enough money. Overdraft fees are what you pay for using that service. You can have overdraft protection turned on but still decline to pay fees by turning off the feature for specific transaction types.
If I turn off overdraft protection, will my credit score drop?
No. Turning off overdraft protection doesn't affect your credit. However, if checks bounce because you declined overdraft protection, the recipient may report it, which can show up on your banking history and make it harder to open accounts later.
Can I get overdraft fees refunded?
Many banks will reverse one or two overdraft fees if you call and ask, especially if you don't have a history of overdrafts. If your bank refuses, you can file a complaint with the Consumer Financial Protection Bureau. Some banks have also settled lawsuits over overdraft practices and refunded fees to customers.
Is overdraft protection the same as a line of credit?
No. Overdraft protection usually means per-transaction fees. An overdraft line of credit is a small loan that covers overdrafts and charges interest instead. Lines of credit are cheaper if you overdraft often or by large amounts, but more expensive if you rarely overdraft.