What a high yield savings account actually pays you

A high yield savings account (HYSA) pays interest on the money you deposit. The amount you earn depends on the annual percentage yield (APY) the bank offers and how much money sits in your account. Banks change their rates frequently — sometimes weekly — so the rate you see today may be different next month.

As of early 2024, high yield savings accounts at online banks typically pay between 4.5% and 5.35% APY. Banks that offer rates at the higher end of that range include Marcus, Ally, and American Express Personal Savings. Traditional brick-and-mortar banks usually pay much less — often under 0.5% APY. The difference matters: on $10,000, a 5% account earns roughly $500 per year, while a 0.5% account earns $50.

The interest compounds daily or monthly, depending on the bank. That means you earn interest on your interest. On a $10,000 deposit at 5% APY compounded daily, you would have approximately $10,512.68 after one year, not exactly $10,500, because of compounding.

Key Takeaways

  • High yield savings accounts currently pay between 4.5% and 5.35% APY at online banks, while traditional banks often pay under 0.5%.
  • Banks change their rates frequently, so the APY you see when you open an account may be lower or higher within a few months.
  • Interest compounds daily or monthly, meaning you earn small amounts of interest on the interest you have already accumulated.
  • The amount you earn depends only on the APY rate and your account balance — there are no hidden fees or minimum earnings requirements at most online banks.

How the math works: calculating your earnings

The formula for interest earned is straightforward: multiply your account balance by the APY, then divide by 365 (or 12 for monthly compounding). Banks do this calculation automatically, but understanding it helps you compare accounts.

If you have $5,000 in an account paying 5% APY, you earn roughly $250 per year. That breaks down to about $20.83 per month or $0.68 per day. If you add another $5,000 to the account partway through the year, the second deposit earns interest only from the day you deposit it forward.

Compounding means the bank calculates interest on your growing balance. After one month at 5% APY, your $5,000 becomes $5,020.83. In month two, you earn interest on $5,020.83, not just the original $5,000. Over a year, this compounds to $5,256.33 instead of $5,250. The difference is small on modest balances but grows as your account gets larger.

Why rates vary so much between banks

Online banks pay higher rates because they have lower overhead costs — no physical branches, fewer employees, and lower rent. They pass those savings to customers through higher interest rates. Traditional banks maintain thousands of branches and pay for in-person staff, so they keep more of the interest spread for themselves.

Banks also adjust rates based on what the Federal Reserve does. When the Fed raises its benchmark interest rate, banks can afford to pay more on savings accounts. When the Fed cuts rates, banks lower what they pay. This is why HYSA rates have dropped from 5.35% in late 2023 to the 4.5% to 5.35% range in 2024 — the Fed has signaled it may cut rates later in the year.

Competition also drives rates. When one major online bank raises its APY, others often follow within days to avoid losing customers. This means the highest-paying accounts change frequently, and you may benefit from moving your money if a new bank offers a significantly better rate.

What happens to your earnings over time

The longer your money sits in a high yield savings account, the more interest accumulates. On $25,000 at 5% APY, you earn approximately $1,250 per year. After five years, assuming the rate stays constant and you make no additional deposits, you would have roughly $31,888 — the original $25,000 plus $6,888 in accumulated interest.

In reality, rates will change. If your bank drops its rate to 4% in year two, your earnings slow. If you add money to the account, you earn interest on the new balance. If you withdraw money, your earnings decrease proportionally. Most banks do not penalize you for withdrawals, so you can move money in and out without losing the interest you have already earned.

The Federal Deposit Insurance Corporation (FDIC) insures deposits up to $250,000 per account holder per bank. This means your money and all the interest it earns are protected if the bank fails, though this is extremely rare at established online banks.

Comparing a high yield account to other places to keep money

A regular savings account at a traditional bank might pay 0.01% to 0.5% APY. On $10,000, that is $1 to $50 per year. A money market account sometimes pays slightly more than a regular savings account but often requires a higher minimum balance and may limit how often you can withdraw. A certificate of deposit (CD) locks your money away for a set period — three months, one year, five years — but currently pays rates similar to or slightly higher than HYSAs, often between 4.75% and 5.5%.

The main trade-off is access. A HYSA lets you withdraw money whenever you need it. A CD penalizes you if you withdraw early, usually by taking away some of the interest you earned. If you know you will not need the money for a year or more, a CD might pay slightly more. If you want to keep the money accessible, a HYSA is the better choice.

Checking accounts almost never pay meaningful interest — most pay 0% or close to it. Some online banks offer checking accounts that pay 1% to 2% APY, but these usually require direct deposit or a minimum balance. For money you are saving rather than spending, a HYSA is almost always better than a checking account.

Taxes on the interest you earn

The interest you earn in a high yield savings account is taxable income. If you earn $500 in interest in a calendar year, you must report that $500 as income on your federal tax return. The bank will send you a Form 1099-INT in January showing how much interest you earned in the previous year.

The tax you owe depends on your overall income and tax bracket. If you are in the 22% tax bracket, earning $500 in interest costs you roughly $110 in federal taxes. This is why high yield savings accounts are best for money you are saving for a specific goal or emergency fund — the interest helps your money grow, but it is not a substitute for investing in stocks or bonds if you have a longer time horizon.

Some people keep money in a HYSA for a few months while they decide what to do with it, or while they wait for a large purchase. Others keep a portion of their savings in a HYSA permanently as an emergency fund. The interest you earn is a bonus, not the primary reason to use the account.

How to find the highest-paying account right now

Websites like Bankrate, DepositAccounts, and NerdWallet track HYSA rates across dozens of banks and update them daily. You can sort by APY to see which banks are currently paying the most. Most of the highest-paying accounts are at online-only banks like Marcus, Ally, American Express, and LendingClub.

Before you open an account, check whether the bank requires a minimum deposit and whether there are any monthly fees. Most online banks have no minimum and no monthly fees, but it is worth confirming. Also check how the bank handles deposits and withdrawals — most allow unlimited transfers, but some limit you to six withdrawals per month (though this rule is less common now than it used to be).

Once you open an account, your rate is not locked in. Banks can lower their rates at any time, usually with a few days' notice. If your bank drops its rate significantly and another bank is paying more, you can move your money. There is no penalty for switching, and moving money between banks typically takes three to five business days.

Frequently Asked Questions

Can the bank lower my interest rate after I open the account?

Yes. Banks can change their APY at any time, usually with a few days' notice. You are not locked into the rate you see when you open the account. If your bank lowers its rate and you find a better option elsewhere, you can move your money without penalty.

How often does interest get added to my account?

Most banks add interest monthly, though some add it daily. The difference is small — daily compounding earns slightly more because you earn interest on your interest more frequently. Check your bank's terms to see how often they credit interest.

What if I withdraw money before the end of the year?

You can withdraw money anytime without penalty. You simply stop earning interest on the amount you withdraw. If you withdraw $5,000 from a $10,000 account, you earn interest only on the remaining $5,000 going forward.

Is the interest I earn considered income for government benefits?

Yes, interest income counts as income for most means-tested benefits like Medicaid or SNAP. If you are receiving benefits and earn significant interest, report it to the program administrator. The impact depends on your total income and the program's rules.

Should I move my money if another bank offers a higher rate?

If the difference is significant — for example, 5.35% versus 4.5% — moving makes sense. On $50,000, that is a $425 annual difference. The transfer takes three to five business days and costs nothing. If the difference is small, staying put may be simpler.