CD rates vary by bank, term length, and deposit size—and the highest rates are usually at online banks, not branches

The banks offering the best CD rates change week to week, but online banks consistently beat brick-and-mortar branches by 0.5% to 1.5% annually. Banks like Marcus, Ally, and American Express Personal Savings regularly top the rate lists for 3-month, 6-month, 1-year, and 5-year terms. Traditional banks—Chase, Bank of America, Wells Fargo—typically offer rates 1% to 2% lower because they spend more on physical locations and advertising.

The catch: you cannot walk into a branch to open an account. You apply online, fund the CD by transferring money from another bank, and manage everything through a website or app. If you need to withdraw early, you pay a penalty—usually three to six months of interest, depending on the term.

Rate shopping matters. A 5-year CD at 4.50% annual percentage yield (APY) versus 3.75% APY means an extra $375 on a $10,000 deposit over five years. That gap widens with larger amounts.

Key Takeaways

  • Online banks offer the highest CD rates because they have lower overhead costs than branches; check Marcus, Ally, American Express, and Discover for current rates.
  • Rates change weekly, so the "best" rate today may not be the best next week—compare at least three banks before committing.
  • Shorter terms (3 to 12 months) usually pay less than longer terms (3 to 5 years), but rates can invert if the economy shifts.
  • Early withdrawal penalties typically cost three to six months of interest, so only lock money in a CD if you will not need it before maturity.
  • All deposits up to $250,000 per bank are insured by the FDIC, so a higher rate does not mean higher risk as long as you stay within that limit.

How to compare rates across banks

Do not rely on a single website to show you the best rates. Rate aggregators like Bankrate, DepositAccounts, and NerdWallet update daily, but they do not always include every bank, and they may lag by a few hours. Open a new browser tab and visit the CD pages of at least three banks you are considering, then write down the APY for each term length you care about.

Pay attention to the fine print. Some banks offer a higher rate for the first 30 days, then drop it. Others require a minimum deposit of $25,000 or more. A few allow you to add money to the CD after opening (called a "bump-up" CD), which costs you a lower starting rate but lets you lock in a higher one if rates rise. Read the terms before you fund the account.

Timing matters less than you might think. CD rates do not move in lockstep with the Federal Reserve's rate decisions—banks adjust their own rates based on how much money they need to attract. You will not miss out by waiting a week to compare, but you will lose money by opening a CD at a bank offering 3.50% when another is paying 4.50%.

Online banks versus credit unions and regional banks

Online banks dominate the rate rankings because they have no branch network to maintain. Marcus (owned by Goldman Sachs), Ally, American Express Personal Savings, and Discover all operate online only and compete aggressively on rates to attract deposits. They pass the savings to you.

Credit unions sometimes offer competitive rates, especially if you are a member. Navy Federal Credit Union, Connexus Credit Union, and others occasionally top the rate lists for specific terms. The catch: you have to be a member, which usually means meeting an employment or location requirement. Check your employer or local credit union to see if you may have access to.

Regional banks—like some local institutions—occasionally offer rates as high as online giants, but you have to search for them. They do not have the marketing budget to appear first in search results, so they stay off most people's radar.

What happens when rates are falling versus rising

When the Federal Reserve is cutting rates (as it did in late 2023 and early 2024), CD rates fall across the board. If you lock in a 5-year CD at 4.50% and rates drop to 3.00% within six months, you have made a good decision—you are earning more than new CDs will pay. If you wait and rates fall further, you lose out.

When rates are rising, the opposite happens. A 1-year CD at 4.00% looks good until rates jump to 5.00% three months later. You are now earning less than you could if you had waited. Some banks offer "bump-up" CDs that let you lock in a higher rate once during the term, but the starting rate is usually lower to compensate.

The safest approach: if you do not know which direction rates are heading, split your money across multiple terms. Put one-third in a 1-year CD, one-third in a 3-year CD, and one-third in a 5-year CD. You will earn more than a savings account on all of it, and you will have money maturing at different times so you can reinvest at whatever rates are available then.

Minimum deposits and account requirements

Most online banks require a minimum deposit of $500 to $1,000 to open a CD. A few, like Ally, have no minimum. Others, like American Express Personal Savings, require $10,000. Check the bank's website before you start the application—it will tell you the minimum upfront.

You will need a checking or savings account at the same bank to fund the CD, or you will need to transfer money from another bank using ACH (Automated Clearing House). ACH transfers usually take one to three business days. Some banks let you fund a CD with a wire transfer, which is faster but may cost $10 to $25.

Once the CD matures, the bank will either automatically renew it at the current rate or return your money to your linked savings account. Read the renewal terms when you open the account so you know what to expect. If rates have fallen and you do not want to renew, you can withdraw the money without penalty once it matures.

Early withdrawal penalties and what they cost

If you need the money before the CD matures, you will pay an early withdrawal penalty. For a 1-year CD, the penalty is usually three months of interest. For a 5-year CD, it is often six months of interest. A few banks charge a flat fee ($25 to $50) instead.

The math: if you open a $10,000 CD at 4.50% APY for one year and withdraw after six months, you earn $225 in interest (half of $450). The penalty is three months of interest, or $112.50. You walk away with $10,112.50—still more than you would have earned in a savings account, but less than if you had left it alone.

Some banks offer "no-penalty" CDs that let you withdraw early without a penalty, but the rate is lower—usually 0.5% to 1.0% less than a standard CD. They make sense if you are not sure you will need the money, but if you are confident you can leave it alone, a standard CD with a higher rate is the better choice.

FDIC insurance and keeping your money safe

All deposits at FDIC-insured banks are protected up to $250,000 per depositor, per bank, per account type. A CD at Marcus is insured separately from a savings account at Marcus, so you could have $250,000 in a CD and $250,000 in a savings account at the same bank and both would be fully insured.

If you have more than $250,000 to invest in CDs, open accounts at multiple banks. A $500,000 deposit split between Marcus ($250,000) and Ally ($250,000) is fully insured. A $500,000 deposit at a single bank is only half-insured.

Online banks are just as safe as branch banks under FDIC insurance. The rate difference has nothing to do with risk—it is purely about operating costs. A higher rate does not mean the bank is taking more risk with your money.

Frequently Asked Questions

Can I add money to a CD after I open it?

Most banks do not allow it. You deposit the full amount when you open the CD, and that is what earns interest for the term. Some banks offer "add-on" or "bump-up" CDs that let you deposit more money or lock in a higher rate once, but these are less common and usually pay a lower starting rate.

What if I need the money before the CD matures?

You can withdraw it, but you will pay an early withdrawal penalty—usually three to six months of interest. Some banks offer no-penalty CDs with lower rates if you want the option to withdraw without cost. Check the penalty amount before you open the account.

Do I have to use the same bank for my checking account and CD?

No. You can fund a CD at one bank by transferring money from a checking account at another bank using ACH. The transfer usually takes one to three business days. Some banks also accept wire transfers, which are faster but may charge a fee.

What happens to my CD when it matures?

The bank will either automatically renew it at the current rate or return your money to your linked savings account. Check the renewal terms when you open the account. If rates have fallen and you do not want to renew, you can withdraw the money without penalty once it matures.

Is a higher CD rate worth switching banks?

Yes, if the difference is 0.5% or more and you have at least $5,000 to deposit. A 0.5% difference on $10,000 over five years is $250 in extra earnings. Switching takes 10 minutes online, so the math usually works in your favor.