The interest rate is what makes you money, and it varies by bank and account type

A savings account makes you money through interest—a percentage of your balance that the bank pays you regularly, usually monthly or daily. The higher the interest rate, the more you earn. A $10,000 balance at 0.01% annual interest earns about $1 per year. The same $10,000 at 4.5% annual interest earns about $450 per year. The difference between a low-rate account and a high-rate account is real money.

Banks set their own rates based on what the Federal Reserve does with its benchmark rate. When the Fed raises rates, banks eventually raise what they pay depositors. When the Fed cuts rates, banks cut what they pay you. Right now, high-yield savings accounts at online banks pay between 4% and 5.35% annually, while traditional brick-and-mortar banks often pay 0.01% to 0.05%. The gap exists because online banks have lower overhead costs and pass some of that savings to depositors.

The money you earn is taxed as ordinary income at your federal tax rate, and sometimes at your state rate too. If you earn $450 in interest, you'll report that on your tax return. This matters more if you have a large balance or a very high rate.

Key Takeaways

  • High-yield savings accounts at online banks currently pay 4% to 5.35% annually, while traditional banks pay closer to 0.01% to 0.05%.
  • The interest rate is the only thing that makes you money in a savings account—higher rates mean more earnings on the same balance.
  • Interest compounds daily or monthly depending on the bank, so money earned yesterday starts earning interest today.
  • You pay income tax on the interest you earn, so the after-tax return is lower than the advertised rate.
  • Rates change frequently and are not locked in, so the account that pays the most today may not pay the most next month.

How compound interest works in your favor

Compound interest means you earn interest on the interest you've already earned. If your account compounds daily, the bank calculates interest on your balance every single day and adds it to your account. Tomorrow, you earn interest on that slightly larger balance. Over months and years, this compounds into real growth.

A concrete example: $10,000 at 4.5% annual interest, compounded daily, earns about $459 in the first year. In year two, you earn interest on $10,459, so you make about $471. The difference is small in year two, but over 10 years the compounding effect becomes visible. The same $10,000 grows to about $14,533 instead of $14,500 if interest were straightforward rather than compound.

The frequency of compounding matters most when rates are high and balances are large. At 0.01%, the difference between daily and monthly compounding is pennies. At 5%, it's noticeable. Always check whether the bank compounds daily or monthly—daily is better.

Where to find the highest rates right now

Online banks consistently offer the highest rates because they don't maintain physical branches. Banks like Marcus, Ally, American Express Personal Savings, and Wealthfront Cash Account have historically been among the highest payers, though the specific rates change weekly. You can compare current rates on sites like Bankrate, DepositAccounts, or the banks' own websites.

Credit unions sometimes offer competitive rates, especially if you're a member. Some credit unions pay 4% to 5% on savings accounts, though often with limits—you might earn the high rate only on balances up to $25,000, then a lower rate on anything above that. Call your credit union and ask what they're currently paying.

Traditional banks (Chase, Bank of America, Wells Fargo, Citibank) typically pay 0.01% to 0.05%. You might use them for checking and keep your savings elsewhere. Some regional banks fall in the middle, paying 1% to 2%. The tradeoff is convenience: a big bank near your home might be worth a lower rate if you need to deposit cash frequently.

What happens when the Federal Reserve changes rates

The Federal Reserve sets a target range for the federal funds rate—the rate at which banks lend to each other overnight. When the Fed raises this rate, banks eventually raise the interest they pay on savings accounts. When the Fed cuts rates, banks cut what they pay you. The lag between a Fed move and a bank's response is usually a few weeks to a few months.

Rates are not locked in. Your 4.5% account could become 4.2% next month if the Fed cuts rates and your bank follows. This is different from a certificate of deposit (CD), where the rate is fixed for a set term. In a savings account, you have flexibility—you can move your money if another bank offers more—but you have no rate may provide.

If you think rates will fall, moving money to a high-paying account now locks in the current rate for as long as you keep the money there. If you think rates will rise, you might wait, but banks usually raise rates slowly and incompletely, so the advantage of waiting is often small.

Fees that eat into your earnings

Some savings accounts charge monthly maintenance fees, overdraft fees, or fees for falling below a minimum balance. A $10 monthly fee on an account earning $5 per month in interest means you're losing money. Always check the fee schedule before opening an account.

Most online banks charge no monthly fee and no minimum balance. Some traditional banks charge $5 to $15 per month unless you maintain a certain balance (often $500 to $2,500). A few banks waive fees if you set up direct deposit or maintain a linked checking account. Read the terms carefully—a slightly lower interest rate with no fees can beat a higher rate with a $10 monthly charge.

FDIC insurance protects your money up to $250,000

The Federal Deposit Insurance Corporation (FDIC) insures deposits at member banks up to $250,000 per depositor, per bank, per account type. This means if the bank fails, you get your money back up to that limit. Nearly all banks are FDIC-insured, but verify it on the bank's website or the FDIC's bank search tool before you open an account.

If you have more than $250,000 to save, you can spread it across multiple banks to stay fully insured. Some people keep $250,000 at one bank and $250,000 at another. Money market accounts and CDs are also FDIC-insured under the same $250,000 limit.

Credit unions use a similar system called NCUA (National Credit Union Administration) insurance, also up to $250,000 per member, per credit union. If you use both a bank and a credit union, the limits are separate.

Savings accounts versus money market accounts and CDs

A money market account is a hybrid between a savings account and a checking account. It usually pays interest similar to a savings account but lets you write checks or use a debit card. The tradeoff is that some money market accounts have higher minimum balances or lower interest rates than savings accounts. Compare the rate and fees before choosing one.

A certificate of deposit (CD) locks your money away for a set term—3 months, 6 months, 1 year, 5 years—in exchange for a fixed interest rate. If you withdraw early, you pay a penalty, usually a few months' worth of interest. CDs pay more than savings accounts when rates are stable, but you lose flexibility. Use a CD if you know you won't need the money for a specific period.

For most people, a high-yield savings account is the best choice because it pays well, has no withdrawal penalties, and lets you access your money anytime. Use a CD only if you have money you genuinely won't touch for months or years.

Frequently Asked Questions

How much money do I need to open a savings account?

Most online banks require no minimum deposit to open an account. Some traditional banks require $25 to $500 to start. A few high-yield accounts require $1,000 or more. Check the bank's website for the specific requirement—it's usually listed under "Account Requirements" or "Getting Started".

Can I move my money between banks if rates change?

Yes. You can transfer money from one bank to another anytime with no penalty. The transfer takes one to three business days via ACH (automated clearing house). There's no fee to move your money, and you don't have to close the old account if you don't want to. Many people keep multiple accounts open to compare rates.

What's the difference between APY and APR?

APY (annual percentage yield) includes the effect of compound interest, so it's the real return you'll get. APR (annual percentage rate) does not include compounding. Banks advertise savings accounts using APY, which is the number to compare. A 4.5% APY is what you actually earn.

Do I have to report savings account interest on my taxes?

Yes. Banks send you a 1099-INT form if you earn $10 or more in interest during the year. You report this as income on your tax return. Even if the bank doesn't send a form, you're required to report the interest. Keep your own records of what you earned.

Is a savings account a good place for an emergency fund?

Yes. A high-yield savings account is one of the best places for an emergency fund because the money is safe, insured, earns interest, and you can withdraw it within a day or two. Keep three to six months of expenses in a savings account, then invest anything beyond that in longer-term accounts.