An online bank is a financial institution that operates entirely or mostly through the internet, with no physical branches you can walk into

You open an account, deposit money, transfer funds, pay bills, and manage your account through a website or mobile app instead of visiting a building. The bank holds your money in the same way a traditional bank does—your deposits are insured by the Federal Deposit Insurance Corporation (FDIC) up to $250,000 per account type—but you never hand cash to a teller or sit across a desk from a loan officer.

Some online banks are entirely digital: no branches anywhere. Others are subsidiaries of larger banks that also operate physical locations. Either way, the core difference is that you conduct all your business remotely. You deposit checks by photographing them with your phone, you call customer service by phone or chat, and you access your money through ATMs that belong to other networks.

Key Takeaways

  • Online banks have no physical branches, so all account management happens through a website or app.
  • Your deposits are FDIC-insured up to $250,000 per account type, the same as at a traditional bank.
  • Online banks typically offer higher interest rates on savings accounts because they have lower overhead costs than brick-and-mortar banks.
  • You access cash through ATM networks rather than teller windows, and you deposit checks by taking a photo with your phone.
  • Customer service is available by phone, email, or chat, but not in person.

How you deposit money at an online bank

Most online banks let you deposit checks using mobile check deposit: you photograph the front and back of the check with your phone, upload the images through the app, and the bank processes it. The funds typically appear in your account within one to two business days. Some online banks also accept wire transfers, ACH transfers from another bank, or direct deposit from your employer.

If you need to deposit cash, you cannot do it directly at an online bank because there is no teller window. Some online banks partner with retail locations—CVS, Walgreens, or local credit unions—where you can deposit cash into your account. Others require you to transfer cash through a third party or use a different method entirely. Check your bank's website for which deposit methods they accept before you open an account.

How you access your money

Online banks do not issue their own ATMs, so you access cash through ATM networks. Many online banks reimburse you for out-of-network ATM fees—meaning if you use an ATM that is not part of their network, they refund the fee the ATM operator charged. Some banks reimburse all fees; others cap the reimbursement at a certain amount per month or per transaction. A few online banks partner with specific ATM networks so you can withdraw cash for free at thousands of locations.

You can also get cash back when you use a debit card at a store that offers it. This is free and does not require you to make a purchase, though some retailers may have policies about minimum transactions.

Interest rates and fees at online banks

Online banks typically offer higher interest rates on savings accounts than traditional banks because they have lower operating costs—no rent for branches, no salary for as many employees. The rate varies by bank and changes over time as the Federal Reserve adjusts interest rates. You can compare current rates on financial websites or by visiting each bank's website directly.

Many online banks charge no monthly maintenance fee, no minimum balance requirement, and no overdraft fees. Some charge fees for specific services—like wire transfers or expedited check processing—but the fee structure is usually simpler than at a traditional bank. Read the fee schedule before you open an account so you know what to expect.

Security and FDIC insurance at an online bank

Your deposits at an online bank are protected by FDIC insurance the same way they are at a traditional bank. If the bank fails, the FDIC will reimburse you up to $250,000 per account type (checking, savings, money market, and so on). This protection applies whether the bank has branches or not.

Online banks use encryption, two-factor authentication, and fraud monitoring to protect your account from unauthorized access. If someone uses your debit card or account number without permission, you can report it to the bank and dispute the transaction. Your liability for fraudulent charges is limited: if you report the fraud within two business days, you are responsible for no more than $50 of unauthorized transactions; if you report it later, your liability can be higher but is still capped by federal law.

When an online bank makes sense for you

An online bank works well if you rarely need to deposit cash, do not mind managing your account through an app, and want a higher interest rate on savings. It also works if you travel frequently or live far from a physical bank branch—you can manage everything from anywhere with internet access.

An online bank may not be the right choice if you regularly deposit cash, prefer to speak with someone in person, or need a safe deposit box or other services that require a physical location. Some people use both: an online bank for savings because of the higher interest rate, and a traditional bank or credit union for checking and cash deposits.

How online banks differ from credit unions and traditional banks

A traditional bank has physical branches where you can deposit cash, speak with a banker, and access services like safe deposit boxes. A credit union is a member-owned financial institution that also typically has branches and may offer lower fees or better rates to members. An online bank has no branches and operates only through digital channels.

All three are insured by the FDIC or the National Credit Union Administration (NCUA) up to $250,000 per account type. The choice between them depends on what services you need and how you prefer to manage your money. Some people maintain accounts at all three.

Frequently Asked Questions

Is my money safe at an online bank?

Yes. Your deposits are FDIC-insured up to $250,000 per account type, the same as at a traditional bank. Online banks use encryption and fraud monitoring to protect your account. If someone commits fraud on your account, you can dispute it and your liability is limited by federal law.

How do I deposit cash if the bank has no branches?

Most online banks do not accept cash deposits directly. Some partner with retail locations or other banks where you can deposit cash into your account. Others require you to transfer money from another account or use alternative methods. Check your bank's website for their specific cash deposit options before you open an account.

Can I get a loan from an online bank?

Some online banks offer personal loans, auto loans, and mortgages. Others offer only deposit accounts like checking and savings. Check the bank's website to see what loan products they offer. The application process is typically online, and approval decisions may take a few days to a week.

What happens if an online bank goes out of business?

The FDIC will reimburse you up to $250,000 per account type. If you have more than $250,000 in one account type at that bank, the amount over $250,000 is not protected. To protect larger balances, you can spread money across multiple banks or multiple account types.

Do online banks offer customer service?

Yes, but not in person. Most online banks offer customer service by phone, email, or chat. Response times vary by bank and by how busy they are. Some offer 24/7 support; others have limited hours. Check the bank's website for their customer service hours and contact methods before you open an account.