Key takeaways
Here's a quick look at what this guide covers.
Overdraft protection is an optional service that moves money from a linked savings account, credit card or line of credit to cover a shortfall.
It can help you skip pricey overdraft fees, but it may carry its own transfer fees and interest charges.
Overdraft coverage works differently because your bank pays the shortfall itself and often charges a fee for each transaction.
You can usually set up overdraft protection online, in your bank's app or by phone, and simple habits can help you avoid overdrafts too.
Overdraft protection can offer peace of mind when your checking account balance dips below zero. You link a backup account, and your bank pulls money from it to keep your purchases and bills going through. It can help you avoid declined transactions and hefty fees, but it may come with costs of its own.
What is overdraft protection?
Overdraft protection is an optional banking service that covers transactions when they exceed your available checking balance. You link a second account, such as a savings account, credit card or line of credit, to your checking account.
When your balance goes negative, your bank automatically moves money from the linked account to cover the gap. The service can help you avoid declined purchases, returned payments and overdraft fees.
Without overdraft protection, your bank might still cover the difference through overdraft coverage, but it may charge a hefty fee. Your bank might also reject the transaction completely.
That doesn't mean overdraft protection comes at no cost. Some banks charge a fee per transfer. If you use a credit card or line of credit, you may also pay fees and interest on the amount you move.
How does overdraft protection work?
Overdraft protection automatically moves money from a linked account to your checking account to cover a negative balance. Let's say you have $80 in your account and swipe your debit card for $100. With overdraft protection, your bank would pull the missing $20 from your backup account.
You can choose from a few kinds of backup accounts, such as:
Savings account: You can typically link a savings account at the same financial institution to your checking account to cover overdrafts. Bankrate notes that most banks don't charge for these transfers.
Credit card: Your card issuer typically treats each transfer as a cash advance. Citi notes that cash advance interest starts right away.
Line of credit: This account lets you borrow up to a set limit. You'll usually owe interest and maybe fees on what you use.
Each option comes with its own trade-offs. This table shows how the three account types compare.
Linked account | How it works | Typical cost |
Savings account | Your bank moves your own money from a linked savings account at the same financial institution into checking, so you need enough saved to cover the charge. | Many banks charge no fee |
Credit card | Your card issuer adds the amount to your card balance as a cash advance. | May include a cash advance fee, plus interest from day one |
Line of credit | Your bank draws the amount from a credit line you've already opened. | Interest on what you borrow, plus fees at some banks |
Overdraft protection can carry fees and interest charges. Still, those costs may run lower than what you'd pay in overdraft fees if your bank covered the negative balance.
Overdraft protection vs. overdraft coverage
Overdraft protection and overdraft coverage sound similar, but they work in different ways. With overdraft protection, you cover a negative balance with your own savings or credit.
With overdraft coverage, your bank pays the transaction itself when your account falls below $0. Your bank then typically charges an overdraft fee. These fees can add up quickly if you overdraw several times.
Federal rules give you some control here. The Consumer Financial Protection Bureau, or CFPB, explains that banks can't charge an overdraft fee on one-time debit card purchases unless you opt in. Some banks may still charge fees on checks and recurring payments without your opt-in.
The two services differ in a few key ways, as this table shows.
Feature | Overdraft protection | Overdraft coverage |
Who pays the shortfall | Your linked savings, credit card or credit line | Your bank |
Typical cost | Often no fee for transfers from a linked savings account; possible fees and interest for transfers from a linked credit card or line of credit. | Bankrate's 2025 survey found an average fee of $26.77 per overdraft |
How you turn it on | You link an account and accept your bank's terms | You opt in for one-time debit card purchases |
Chance of a declined purchase | Possible if your linked account runs low | Possible if your bank chooses not to pay |
Pros and cons of overdraft protection
Overdraft protection can help you out in a financial squeeze, but it also has some potential downsides. Weigh both sides before you opt in.
Pros
Overdraft protection offers a few clear upsides.
Avoid overdraft coverage fees: Overdraft protection can help you skip overdraft coverage fees when you overdraw your account.
No cost in some cases: You may not pay any fees if you use a savings account as your linked account.
Fewer rejected transactions: A funded backup account can help you avoid declined purchases or bounced checks.
Cons
Keep these drawbacks in mind, too.
Could add fees and interest charges: Some banks charge a fee each time you use it. Credit cards and credit lines may also add interest.
Still possible to have transactions rejected: If your linked savings account runs low, you could still see declined transactions.
Could lead to more overspending: Fewer declines might give you a false sense of financial security. That could feed a cycle of overspending.
Overdraft and related fees still bring big banks significant revenue. Reuters reported that the 20 largest U.S. retail banks collected $2.99 billion in overdraft and nonsufficient funds fees over 2025's first nine months. A nonsufficient funds fee is what some banks charge when they decline a payment you can't cover.
Chime® takes a different approach. SpotMe® (see disclosure 1) lets eligible members overdraw on debit card and credit card purchases and cash withdrawals with no overdraft fees, starting at $20 and up to $200. To qualify, you need $200 or more in qualifying direct deposits to your Chime Checking Account each month.
How to set up overdraft protection
Setting up overdraft protection usually takes a few minutes. These steps can walk you through it.
Check what your bank offers: Visit your bank's website or app to see which accounts you can link.
Choose the account to link: A savings account often costs the least, while credit cards and credit lines may add interest.
Review fees and terms: Ask about transfer fees, interest rates and any limits before you sign up.
Opt in online, in the app or by phone: Your bank will typically ask you to confirm the linked account and accept its terms.
Keep the linked account funded: Overdraft protection works only when your backup account has enough money or available credit.
Other ways to avoid overdrafts
Overdraft protection is one safety net, but a few daily habits can keep your balance above zero in the first place. Try these tips.
Set up low-balance alerts: Many banking apps can notify you when your balance drops below an amount you choose.
Keep a cushion: Leave a small buffer, such as $50 or $100, in checking to absorb surprise charges.
Track pending transactions: Pending charges and recurring bills can shrink your available balance before they fully process.
Decline overdraft coverage: Without your opt-in, your bank generally declines one-time debit card purchases that would overdraw your account.
Compare account policies: Some financial companies offer fee-free overdraft options, so read the terms before you choose an account.
SpotMe (see disclosure 1) is one option to consider. Eligible members can overdraw on debit and credit card purchases and cash withdrawals up to their limit without paying overdraft fees.
Protect your account from overdrafts
Overdraft protection can be a useful tool if your checking account tends to run low. Rather than paying your bank to cover overdrafts on your checking account, you'll tap your own savings or credit. Before you opt in, review what the service may cost.
Pair it with simple habits like low-balance alerts and a small cushion. If you often go into the red, a few ways to stop spending money can help you get your budget back on track. Every step toward a positive balance counts as progress.