A good APY depends on what you're comparing it to, not on a fixed number

There is no universal "good" APY. What matters is how much a bank is paying you compared to what other banks are paying right now, and whether that rate is stable or temporary. A 4.5% APY on a savings account is excellent if most competitors are offering 0.5%, but it's ordinary if they're all at 4.5%. The real question is not whether a number is good in the abstract—it's whether you're getting a competitive rate for today's market.

APY (annual percentage yield) tells you what you'll earn in a year if you deposit money and leave it untouched. The rate changes based on what the Federal Reserve does with interest rates, which means "good" shifts every few months. A rate that was competitive six months ago might be below average now.

Key Takeaways

  • A competitive APY is one that matches or beats what at least five other banks are offering at the same moment you're comparing.
  • High-yield savings accounts typically pay 2 to 5 percentage points more than traditional bank savings accounts, depending on the Federal Reserve's current rate environment.
  • Online banks and credit unions often post higher APYs than brick-and-mortar banks because they have lower overhead costs.
  • Promotional rates that are advertised as temporary will drop after a set period, so read the fine print before opening an account.
  • The difference between a 4% APY and a 5% APY on $10,000 is $100 per year, which is real money but not transformative—choose based on both rate and account features.

How to find what's competitive right now

Check at least five banks on the same day, because rates change weekly. Look at online banks first—they almost always pay more than traditional banks. Ally Bank, Marcus by Goldman Sachs, American Express Personal Savings, and Discover Bank are common reference points, but there are dozens of others. Write down the APY each one shows, and note whether it says "promotional" or "limited time" anywhere on the page.

The highest rate you find is usually competitive. If one bank is at 4.75% and the next highest is 4.5%, the 4.75% is good. If you find five banks all between 4.4% and 4.6%, then anything in that range is competitive. The goal is not to find the single best rate—it's to land within the cluster where most serious banks are sitting.

Credit unions sometimes pay higher rates than banks, but only to members. If you belong to one, check what it offers. The National Credit Union Administration (NCUA) insures deposits at credit unions the same way the FDIC insures them at banks, up to $250,000 per account owner.

Why online banks pay more than traditional banks

Online banks have no branches, no tellers, and no physical real estate. They spend less money to operate, so they pass some of that savings to customers through higher interest rates. A traditional bank with 500 branches across the country has to pay rent, utilities, and staff at every location. An online bank pays for servers and customer service phone lines. The math is straightforward: lower costs mean higher rates.

This does not mean online banks are riskier. They are insured by the FDIC the same way traditional banks are. Your money is just as protected at Ally as it is at Chase. The trade-off is convenience—you cannot walk into a branch and withdraw cash, though most online banks let you transfer money to an external account within one to three business days.

The difference between permanent rates and promotional rates

Some banks advertise a high APY but only for the first three or six months. After that, the rate drops to a lower permanent rate. This is called a promotional or introductory rate. It is legal and common, but it matters for your decision.

If a bank shows 5.0% APY but the fine print says "5.0% for the first 6 months, then 4.0%," you need to know that before you open the account. A promotional rate can still be worth it if the permanent rate is competitive, but you should not choose a bank based on a temporary number. Read the terms and conditions, or call the bank and ask directly: "What is the rate after the promotional period ends?"

How much difference does 1% actually make

The gap between a 4% APY and a 5% APY sounds small, but it compounds. On $10,000, the difference is $100 per year. On $50,000, it is $500 per year. On $100,000, it is $1,000 per year. Over five years, that $100,000 at 5% instead of 4% earns you an extra $5,000 in interest.

That said, the difference between 4.5% and 4.6% is negligible—$50 per year on $10,000. If you like a bank's app, its customer service, or its other features, a 0.1% difference is not a reason to switch. But if you are choosing between two banks with similar features and one pays 4.3% while the other pays 4.8%, the higher rate is worth the move.

What happens when the Federal Reserve changes rates

The Federal Reserve sets a target range for the federal funds rate, which is the interest rate banks charge each other for overnight loans. When the Fed raises or lowers this rate, savings account APYs usually follow within days or weeks. Banks compete for deposits by raising rates when the Fed goes up, and they cut rates when the Fed goes down.

This means a "good" APY today might not be good in six months if the Fed cuts rates. A 5% APY in a high-rate environment might drop to 3.5% if the Fed lowers rates significantly. This is not the bank's fault—it is how the system works. If you are saving for something you need in the next year or two, lock in a good rate now. If you are saving long-term, expect the rate to move up and down over time.

Comparing accounts with different features

Some savings accounts come with perks that affect their real value. A few banks offer slightly lower APY but include a debit card, ATM access, or the ability to write checks. Others charge monthly fees if your balance drops below a certain amount. A high APY means nothing if you pay $10 per month in fees.

When you compare accounts, look at the full picture: the APY, any monthly fees, minimum balance requirements, how quickly you can access your money, and whether the bank offers other products you might use (like checking accounts or credit cards). A 4.5% APY with no fees and no minimum balance is usually better than a 4.7% APY with a $25,000 minimum and a $5 monthly fee if your balance drops below $10,000.

Frequently Asked Questions

Is 4% APY good right now?

It depends on the current market. Check five online banks on the same day. If most are between 4% and 4.5%, then 4% is slightly below average but not bad. If most are between 4.5% and 5%, then 4% is below competitive. Rates change frequently, so what is good shifts every few weeks.

Should I move my money to a new bank for a higher APY?

If your current bank pays 0.5% and you find one paying 4.5%, the move is worth it—that is a $4,000 per year difference on $100,000. If the difference is 0.2%, it probably is not worth the hassle of transferring and updating automatic payments. Calculate the annual difference and decide if it is meaningful to you.

Can a bank lower my APY after I open the account?

Yes. Banks can change rates at any time unless you have a fixed-rate product (which savings accounts are not). They usually give notice before lowering rates, but they are not required to. If your rate drops and you do not like it, you can move your money to another bank.

Why do some banks offer much higher APY than others?

Online banks have lower operating costs and pay more to attract deposits. Some banks also use high rates as a temporary strategy to grow their customer base. A bank might offer 5.5% for six months to get new customers, then lower it to 4.5% once they have the deposits they need.

Does APY include the money I deposit, or just the interest I earn?

APY is the rate at which your deposit grows. If you deposit $10,000 at 4% APY, you earn $400 in interest over one year, giving you $10,400 total. The APY applies to your principal, and the interest compounds (usually daily), so you earn a tiny bit of interest on your interest too.