Banks and Credit Unions Offer the Simplest Route

Your own bank or credit union is usually the easiest place to open a CD. You walk in, call, or log into your online account, and you can often open one in minutes without leaving home. The rate they offer is set by that institution — it does not vary based on where you buy it.

Banks and credit unions are FDIC-insured (banks) or NCUA-insured (credit unions) up to $250,000 per account holder per institution. That insurance covers your principal and interest if the bank fails. If you already have a checking account somewhere, opening a CD there means one login, one statement, one place to manage your money.

The trade-off is that your bank's CD rate may be lower than what you can find elsewhere. Banks compete on convenience and relationship, not always on rate. If you have $50,000 to deposit, a 0.10% difference in rate costs you $50 per year — worth checking before you commit.

Online Banks Often Pay Higher Rates

Online-only banks (sometimes called direct banks) typically offer higher CD rates than brick-and-mortar banks because they have lower overhead. Banks like Marcus, Ally, American Express Personal Savings, and Discover have no physical branches, so they pass savings to depositors.

You open an account entirely online, fund it by transferring money from another bank account, and manage everything through a website or app. The process takes 10 to 15 minutes. These banks are also FDIC-insured, so your money is protected the same way.

The downside is that you cannot walk in and speak to someone in person. If you need to withdraw money early or have a problem, you contact them by phone, email, or chat. For most people this is fine; for those who prefer face-to-face banking, it is a real friction point.

Brokerage Firms Let You Compare Hundreds of CDs at Once

Brokerages like Fidelity, Charles Schwab, E-Trade, and Vanguard offer CDs from multiple banks on a single platform. Instead of calling ten banks to compare rates, you log in once and see hundreds of options side by side, filtered by term length and rate.

When you buy a CD through a brokerage, the brokerage does not hold your money — the underlying bank does. Your CD is still FDIC-insured up to $250,000 at each bank. The brokerage simply acts as the middleman, connecting you to the bank and handling the paperwork.

The advantage is speed and transparency: you see all rates at once and can compare terms without calling around. The disadvantage is that brokerage CDs sometimes have higher minimum deposits (often $1,000 or $2,500) and may charge a small fee if you sell before maturity (though you can always hold to maturity for free). Ask the brokerage about their fee structure before you buy.

Treasury Direct for U.S. Government-Backed Securities

If you want a savings vehicle backed directly by the U.S. government rather than a bank, you can buy Treasury bills, notes, or bonds through Treasury Direct, the government's own platform. These are not CDs, but they serve a similar purpose: you lock in a rate and get your money back at maturity.

You open an account at TreasuryDirect.gov, link a bank account, and bid on or purchase Treasury securities directly. There is no middleman, no bank, and no FDIC insurance needed — the U.S. government backs the full amount. Rates are set by auction and change weekly.

The trade-off is that Treasury securities are less liquid than CDs. If you need your money before maturity, you must sell on the secondary market (through a broker), which may mean selling at a loss if rates have risen. CDs, by contrast, have a fixed early withdrawal penalty you know upfront.

Money Market Accounts as an Alternative

A money market account (MMA) is not a CD, but it is worth knowing about if you are comparing savings options. MMAs pay interest like CDs but do not lock your money away — you can withdraw anytime without penalty. The rate is variable, meaning it can change monthly or quarterly.

You can open an MMA at any bank, credit union, or online bank. The rate is usually lower than a CD of the same term because you have the flexibility to withdraw. If you are not sure how long you can leave money untouched, an MMA may be safer than a CD, even if the rate is slightly lower.

Key Takeaways

  • Your own bank or credit union is the simplest option if you want convenience, but online banks typically offer higher rates for the same term.
  • Brokerages like Fidelity and Schwab let you compare hundreds of CDs from different banks on one screen, saving time if you want to shop rates.
  • All CDs bought through banks, credit unions, and brokerages are FDIC or NCUA-insured up to $250,000, so the bank's stability does not matter as much as the rate and term.
  • Treasury Direct offers government-backed securities as an alternative to bank CDs, but they are harder to sell early if you need the money before maturity.
  • Money market accounts are more flexible than CDs because you can withdraw anytime, but they usually pay a lower rate in exchange for that freedom.

Frequently Asked Questions

Do I need to have an account at a bank to buy a CD there?

No. You can open a CD at a bank where you have no other account. However, if you already have a checking or savings account there, the process is usually faster because the bank already has your information on file.

What is the difference between buying a CD at a brokerage and buying one directly from a bank?

The rate and term are the same either way — the brokerage does not change the terms. The difference is convenience: a brokerage shows you many banks' CDs at once, while buying directly means calling or visiting each bank separately. Both are FDIC-insured.

Can I buy a CD with less than $1,000?

Yes, but it depends on the bank. Most online banks and many traditional banks allow CDs with $500 or even $100 minimums. Brokerages often require $1,000 or $2,500. Call or check the website of the specific bank or brokerage to confirm their minimum.

Is my money safer in a CD at an online bank than at a traditional bank?

No. Both are FDIC-insured up to $250,000, so your principal and interest are protected equally. The bank's size or whether it has physical branches does not affect the insurance coverage.

What happens if I need my CD money before it matures?

You can withdraw it, but the bank will charge an early withdrawal penalty. The penalty varies by bank and CD term — it might be three months of interest or a flat fee. Read the CD's terms before you buy so you know the exact penalty.