ATM stands for Automated Teller Machine

An ATM is a machine that lets you withdraw cash, check your account balance, and move money between accounts without going inside a bank branch or talking to a teller. The word "automated" means the machine does the work instead of a person. "Teller" is the bank job title for someone who handles cash transactions. "Machine" is the physical device you interact with.

Most ATMs are owned by banks, but some are owned by independent companies that place them in grocery stores, gas stations, bars, and other locations. When you use an ATM that does not belong to your bank, you usually pay a fee — often $2 to $3 per transaction. Your own bank's ATM is almost always free.

You access an ATM using a debit card or credit card and a personal identification number, called a PIN. The machine reads your card, verifies your PIN, and connects to your bank's computer system to confirm you have money available. Once confirmed, the machine dispenses cash or performs whatever transaction you requested.

Key Takeaways

  • ATM stands for Automated Teller Machine, a device that performs banking transactions without requiring you to speak to a bank employee.
  • You access an ATM using a debit card or credit card and your PIN, which is a four- to six-digit code only you should know.
  • Using an ATM at a bank other than your own usually costs $2 to $3 per transaction, while your bank's ATM is typically free.
  • ATMs can withdraw cash, deposit checks or cash, transfer money between accounts, and show your current balance, depending on the machine and your bank.
  • ATMs are available 24 hours a day, seven days a week, even when bank branches are closed.

What you can do at an ATM

The most common ATM function is cash withdrawal. You insert your card, enter your PIN, select the amount you want, and the machine counts out bills and returns your card. Most ATMs dispense cash in $20 increments, though some offer $5 or $10 bills as well.

Many ATMs also let you deposit checks. You place the check in an envelope, insert it into the machine, and the ATM scans it and credits the amount to your account. Some newer ATMs can deposit cash as well, though this is less common. Deposits made at an ATM may take one to two business days to post to your account, depending on your bank.

You can also use an ATM to transfer money between your own accounts — for example, moving funds from savings to checking. Many ATMs show your account balance without requiring a withdrawal. Some machines let you change your PIN or print a mini statement showing recent transactions.

How ATM fees work

Your bank does not charge you to use its own ATMs. However, if you use an ATM owned by a different bank or an independent operator, you will see a fee. This fee comes from one of two places: your bank charges you for using an out-of-network machine, or the ATM owner charges you, or sometimes both.

Out-of-network fees typically range from $2 to $3 per transaction. Some banks charge higher fees, and some charge nothing. If you travel frequently or live far from your bank's branches, ask your bank about its out-of-network fee policy. Some banks reimburse out-of-network fees if you maintain a high balance or have a premium account.

To avoid fees, use your bank's ATM network whenever possible. Many banks belong to shared networks — for example, if you bank with a credit union, you may be able to use ATMs from other credit unions in the same network for free. Ask your bank which networks it participates in.

ATM security and protecting your PIN

Your PIN is the only thing protecting your money if someone steals your card. Never share your PIN with anyone, including bank employees, family members, or friends. Your bank will never ask for your PIN by phone, email, or text message.

When you use an ATM, shield the keypad with your hand or body so nearby people cannot see you enter your PIN. Look at the card slot before inserting your card — if it looks loose, cracked, or like it has been tampered with, use a different machine. Criminals sometimes attach devices called skimmers to ATMs to read card information.

Use ATMs in well-lit, populated areas when possible. Avoid using ATMs late at night or in isolated locations. If you notice unusual activity on your account — withdrawals you did not make, or a missing card — contact your bank when ready. Most banks limit your liability for fraudulent ATM withdrawals if you report them promptly.

ATM networks and finding machines

Large banks operate their own ATM networks across multiple states or nationwide. Regional banks and credit unions often belong to shared networks that let their customers use other members' ATMs without paying a fee. The two largest shared networks in the United States are Allpoint and MoneyPass, which together operate hundreds of thousands of ATMs.

You can find ATMs near you using your bank's website or mobile app, which usually has a locator tool. Google Maps and Apple Maps also show nearby ATMs. When you search, you can filter by bank name or network to find machines where you will not pay a fee.

If you travel internationally, ask your bank which ATM networks operate in your destination country. Using an out-of-network ATM abroad usually costs more than using one domestically, and your bank may also charge a foreign transaction fee on top of the ATM fee.

What happens when an ATM malfunctions

If an ATM takes your card, does not dispense cash after you requested it, or shows an error message, contact your bank as soon as possible. Most banks have a phone number on the back of your debit card for customer service. Explain what happened and when.

If the machine kept your card, your bank can cancel it and issue a replacement, usually within five to ten business days. If the machine took your money but did not dispense it, your bank will investigate the transaction. The bank reviews the ATM's internal records and video footage to confirm whether cash was actually dispensed. If the investigation confirms the machine malfunctioned, the bank will refund the amount.

Investigations typically take five to ten business days. During this time, keep your receipt from the transaction. Do not assume the money is lost — banks take ATM malfunctions seriously because they are liable for the machine's errors.

Frequently Asked Questions

Can I withdraw money from an ATM without a debit card?

Some banks offer cardless ATM withdrawal through their mobile app. You request cash in the app, the bank generates a one-time code, and you enter that code at the ATM instead of inserting a card. Not all banks offer this feature, so check with yours to see if it is available.

What is the daily limit on ATM withdrawals?

Most banks set a daily ATM withdrawal limit, commonly $300 to $500, though this varies by bank and account type. You can request a higher limit by contacting your bank, though some banks will not increase it. The limit protects you if your card is stolen, because a thief cannot drain your entire account in one day.

Why did my ATM withdrawal get declined?

A withdrawal can be declined if you do not have enough money in your account, you have reached your daily withdrawal limit, your card is expired or blocked, or the ATM is temporarily offline. If you entered your PIN incorrectly three times, the machine will usually lock you out for security reasons. Try again later or contact your bank.

Do I earn interest on money I withdraw from an ATM?

No. Interest is earned on money that stays in your account. Once you withdraw cash, it is no longer in the bank and earns nothing. The interest rate depends on your account type and your bank's rates, not on how you withdraw the money.

Is it safe to use an ATM at night?

ATMs in well-lit, busy locations are generally safe at night. Avoid isolated ATMs, especially in unfamiliar areas. Trust your instincts — if a location feels unsafe, find a different machine. Many banks place ATMs inside their branches or in find lobbies that are accessible 24 hours, which are safer than outdoor machines.