The best rate depends on what you're willing to do to get it

There is no single bank with the best interest rate for everyone. The highest rates change weekly, and they vary by account type—savings accounts, money market accounts, and certificates of deposit each have different rates. Online banks almost always pay more than brick-and-mortar banks because they have lower overhead costs. But the bank with the highest rate today might drop its rate next week, and you might not be able to move your money without penalty.

The practical answer is this: check the current rates at online banks first (Ally, Marcus, American Express Personal Savings, Discover, and Capital One 360 are common starting points), compare them to your current bank, and move money only if the rate difference is large enough to justify the effort of opening a new account and transferring funds. A 0.10% difference on $10,000 is $10 per year—probably not worth switching for. A 1.5% difference is $150 per year, which might be.

Key Takeaways

  • Online banks typically offer rates 4 to 10 times higher than traditional banks because they don't operate physical branches.
  • Rates change frequently and are set by each bank independently, so the highest rate today may not be the highest next month.
  • Money market accounts and high-yield savings accounts at online banks often pay the same rate, but money market accounts may require a higher minimum balance.
  • Certificates of deposit lock your money for a set period (three months to five years) in exchange for a may provide rate, which is useful only if you won't need the cash.
  • The Federal Reserve's interest rate decisions affect all bank rates, so rates tend to move together across the industry rather than one bank pulling ahead permanently.

How to compare rates across banks

Start by visiting the bank's website directly and looking for the annual percentage yield (APY) on savings or money market accounts. The APY is the rate you actually earn per year, including compounding. Do not rely on a third-party comparison site alone—rates change daily, and a site updated weekly will show stale numbers.

Write down the APY, the minimum balance required to earn that rate, and any fees (monthly maintenance, overdraft, transfer fees). Some banks advertise a high rate but charge fees that eat into your earnings. Others require you to maintain a minimum balance or make a certain number of deposits per month to keep the rate. Read the account terms, not just the headline rate.

Use a calculator to see what your money will actually earn. If you have $5,000 and Bank A pays 4.50% APY with no minimum, and Bank B pays 4.75% APY but requires a $25,000 minimum balance, Bank A is the only option unless you can meet Bank B's requirement. The difference between 4.50% and 4.75% on $5,000 is $12.50 per year anyway.

Why online banks pay more than traditional banks

Online banks have no physical locations, no tellers, and no branch staff. They spend far less money on operations than a bank with hundreds of branches. That savings gets passed to depositors in the form of higher interest rates. A traditional bank might pay 0.01% to 0.05% APY on a savings account; an online bank might pay 4.00% to 5.00% on the same type of account.

The trade-off is convenience. You cannot walk into a branch to deposit cash or speak to a banker face-to-face. Most online banks accept mobile check deposits and transfers from other banks, but if you need to deposit cash regularly, you may need to keep a small account at a traditional bank or use an ATM network partner. Check whether the online bank you're considering has ATM access in your area.

Understanding rate changes and lock-in options

Banks change their savings account rates whenever they choose. There is no notice period, and you have no contract protecting you from a rate cut. If you open a high-yield savings account at 4.75% and the bank drops it to 3.50% next month, you have no recourse except to move your money elsewhere. This is why rates that seem high may not stay high.

Certificates of deposit (CDs) are different. When you open a CD, the bank locks in a rate for a specific term—three months, six months, one year, three years, or five years. You cannot withdraw the money before the term ends without paying a penalty, usually a few months' worth of interest. But the rate is may provide and will not change. If you know you won't need money for two years and want to lock in the current rate, a two-year CD protects you if rates fall. If rates rise, you're stuck with the lower rate.

Comparing savings accounts, money market accounts, and CDs

Account TypeTypical Rate RangeMinimum BalanceAccess to MoneyBest For
High-Yield Savings Account4.00% to 5.35% APY$0 to $25,000Withdraw anytime, no penaltyEmergency funds, money you might need soon
Money Market Account4.00% to 5.35% APY$2,500 to $25,000Limited withdrawals per month; may come with debit cardLarger balances where you want check-writing access
Certificate of Deposit (CD)4.50% to 5.50% APY$500 to $10,000Locked until maturity; early withdrawal penalty appliesMoney you won't touch for months or years

High-yield savings accounts and money market accounts often pay the same rate at the same bank. The difference is usually in the minimum balance and the number of withdrawals allowed per month. Money market accounts sometimes come with a debit card or checkbook, which is useful if you want to access the money quickly without transferring it first.

CDs pay slightly higher rates than savings accounts because your money is locked away. The longer the term, the higher the rate usually is. A three-month CD might pay 4.50%, while a five-year CD at the same bank might pay 5.35%. But you cannot touch the money without a penalty, so only use a CD for money you genuinely will not need.

What the Federal Reserve's rate decisions mean for your savings

The Federal Reserve sets a target interest rate that banks charge each other for overnight loans. When the Fed raises its rate, banks tend to raise the rates they pay on savings accounts. When the Fed cuts its rate, banks tend to cut savings rates. This is why all bank rates move in the same direction at roughly the same time, rather than one bank pulling ahead permanently.

If the Fed is expected to cut rates soon, locking in a CD now protects you from lower rates later. If the Fed is expected to raise rates, keeping money in a flexible savings account lets you move it to a higher-paying bank when rates climb. Check the Federal Reserve's website or financial news sites to see what the current rate is and what economists expect next.

Frequently Asked Questions

Can I move money between banks without losing interest?

Yes. Transferring money from one bank to another does not trigger a penalty or forfeit interest you've already earned. You earn interest up to the day you transfer. If you move money mid-month, you'll receive a prorated amount of interest for the days you held the money. There is no tax consequence to moving money between your own accounts.

What happens if a bank fails after I deposit money?

The Federal Deposit Insurance Corporation (FDIC) insures deposits up to $250,000 per depositor per bank. If a bank fails, the FDIC pays you back up to that limit. This protection applies to savings accounts, money market accounts, and CDs. If you have more than $250,000, split it across multiple banks to keep all of it insured.

Do I have to pay taxes on interest I earn?

Yes. Interest earned on savings accounts, money market accounts, and CDs is taxable income. The bank will send you a 1099-INT form at the end of the year showing how much interest you earned. You report this on your tax return. The higher the rate, the more interest you earn, and the more you owe in taxes—though the tax is usually small unless your balance is very large.

Is it worth switching banks for a 0.5% higher rate?

It depends on your balance and how long you plan to keep the money there. On $10,000, a 0.5% difference is $50 per year. On $100,000, it's $500 per year. If you're moving a large balance and plan to keep it there for years, the difference adds up. If you have a small balance or might need the money soon, the hassle of opening a new account and transferring funds probably isn't worth $50.

Should I open a CD if rates might go higher?

Only if you won't regret being locked in at a lower rate. If you open a one-year CD at 4.75% and rates rise to 5.50% in three months, you're stuck earning 4.75% for the rest of the year. Some banks offer "CD ladders"—opening multiple CDs with different maturity dates so some money becomes available to reinvest at higher rates if rates rise. This strategy works only if you have enough money to split across multiple CDs.