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If you're looking for the best possible return on your savings, there's a good chance you'll find it at an online bank. And the reason largely comes down to how they operate. Here's why online banks can afford to pay more interest on your deposits — and where to find the best rates.

Read more: The 10 best online banks of 2026

Every bank is different, but the reasons online banks typically pay higher savings rates often comes down to a combination of lower costs and more competition.

Online banks typically face lower overhead costs than traditional banks. This is because they don't maintain physical branches, which means they don't have to pay to lease buildings, heat and cool them, pay people to clean at the end of the day, and so on. Simply put, there are far fewer expenses when banks aren't paying to run hundreds or even thousands of branches five to six days a week.

Online banks don't pocket the entirety of the cost savings they achieve through lower overhead. They often pass those savings on to consumers, which is one reason for the higher deposit rates and lower fees.

One of the primary ways banks make money is by using customer deposits to fund revenue-generating loans and investments.

For example, say customers deposit money into savings accounts at a bank that pays an average rate of 4% APY. The bank can use some of those available deposits to fund mortgages and charge borrowers an average rate of 7% APR. The difference between what the bank pays on savings accounts and what they earn back on loans contributes to the bank's net interest income.

So, banks need to encourage customers to keep money in their accounts. However, online banks are often relatively newer companies without the brand loyalty of big banks, so they may need to pay higher interest rates to encourage new business.

Competition can be fierce in banking, which is only amplified with online banks. Customers can now use more than just a handful of banks near home; they can open an account with an online bank from anywhere, within minutes.

There are dozens of online banks, all vying for deposits from the same customers. As a result, there can be a race to the top. In theory, the bank that pays the highest rates can win over more customers from competing banks.

The national average savings account rate is just 0.38%, according to the FDIC. However, many online banks pay interest rates upwards of 4% APY on high-yield savings accounts.

Here's a look at some of today's top savings account rates from online banks:

Online banks can offer many benefits, including high interest rates, few fees, and low minimum balance requirements. These perks can be attractive to consumers who want to get the most out of their money, especially if they already do most of their banking from a mobile device.

However, online banks can have drawbacks. For one, they don't have physical branches, which means you can't meet with someone in person if you need help (though many online banks offer 24/7 customer support via phone, email, or live chat). You may be able to find competitive savings account rates at your local community bank or credit union, where you'll receive more personalized attention as well.

Many online banks also have a convenient mobile check deposit feature. However, it may be tougher to deposit cash. And when you can, you may need to pay a fee.

Similarly, while some online banks give you access to vast ATM networks, not all have this benefit. Those that don't may reimburse you (up to a limit) for third-party ATM fees, but you still have to pay the fee up front.

Overall, online banks have several benefits and drawbacks to consider. If you feel the pros outweigh the cons, they can be a great place to keep your money. However, you can always keep your traditional bank account active alongside an online savings account. That way, you will still have access to in-person services should you need them, along with the benefits online savings accounts offer.

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