A CD is not a savings account, though both hold money at a bank

A certificate of deposit (CD) and a savings account are separate products with different rules. A savings account lets you deposit and withdraw money whenever you want, usually with a debit card or online transfer. A CD requires you to lock your money away for a set period—anywhere from three months to five years—and charges you a penalty if you take it out early. The tradeoff is that CDs pay higher interest rates than savings accounts because the bank knows your money will stay put.

The key difference comes down to access. With a savings account, your money is yours to use. With a CD, you're making a promise to leave it alone, and the bank rewards that promise with better interest. If you break that promise by withdrawing before the CD matures, you lose some or all of the interest you earned, and sometimes a portion of your principal too.

Key Takeaways

  • A CD locks your money for a fixed term (three months to five years), while a savings account lets you withdraw anytime without penalty.
  • CDs pay higher interest rates than savings accounts because your money stays with the bank longer.
  • Early withdrawal from a CD triggers a penalty that typically erases your interest earnings and may reduce your original deposit.
  • Both CDs and savings accounts are FDIC-insured up to $250,000 per depositor per bank, so your money is protected either way.
  • Choose a CD if you have money you won't need for several months or years; choose a savings account if you need access to your funds.

How CD terms and interest rates work

When you open a CD, you choose a term length. Common terms are 3 months, 6 months, 1 year, 2 years, 3 years, and 5 years. The longer the term, the higher the interest rate the bank offers—that's the incentive to lock your money away for longer. A 5-year CD might pay 4.5% annual interest, while a 6-month CD at the same bank might pay 4.0%.

The interest compounds (usually daily or monthly) and is added to your account throughout the term. When the CD reaches its maturity date, you get your original deposit back plus all the interest earned. At that point, you can withdraw the money, open a new CD, or move it to a savings account. Most banks give you a grace period—usually 7 to 10 days after maturity—to decide what to do without penalty.

Interest rates on both CDs and savings accounts change based on what the Federal Reserve does with its benchmark rate. When rates rise, banks offer higher rates on new CDs and savings accounts. When rates fall, new rates drop too. Your existing CD keeps its original rate locked in for the full term, which is why locking in a high rate matters.

What happens if you need the money early

Withdrawing from a CD before the maturity date triggers an early withdrawal penalty. The penalty amount varies by bank and by CD term. A common penalty is three to six months of interest, but some banks charge a percentage of your principal or a flat fee. A few banks charge no penalty on certain CD products, though those usually offer lower interest rates to compensate.

Here's a concrete example: You open a 2-year CD with $10,000 at 4.5% annual interest. After one year, you need the money. Your account has earned roughly $450 in interest. The bank's penalty is six months of interest, which is about $225. You get back your $10,000 principal plus $225 in interest, minus the $225 penalty—so you walk away with $10,000, having earned nothing for your year of waiting.

Some banks are more generous. A few offer "no-penalty CDs" where you can withdraw without losing interest, though the rate is lower than a standard CD. Read the fine print before you open any CD, because penalties vary widely and can eat into your earnings.

FDIC insurance protects both CDs and savings accounts the same way

Both CDs and savings accounts at FDIC-insured banks are protected up to $250,000 per depositor per bank. This means if the bank fails, the government guarantees you get your money back, up to that limit. The insurance covers your principal and any interest earned, whether the account is a CD or a savings account.

If you have more than $250,000 to store, you can open accounts at multiple banks to stay within the limit at each one. You can also open a CD at one bank and a savings account at another bank and both are fully insured. The $250,000 limit applies per institution, not per account type.

When to use a CD instead of a savings account

A CD makes sense if you have money you know you won't need for several months or years. Examples include money set aside for a down payment on a house in two years, a bonus you're saving for a future goal, or an emergency fund beyond what you keep in a checking account. The higher interest rate rewards you for committing to leave the money alone.

A CD also makes sense if you tend to spend money when it's easily accessible. The penalty for early withdrawal acts as a built-in barrier to impulse withdrawals. If you know you'll be tempted to raid your savings, a CD can help you stick to your goal.

A savings account makes more sense if you need the money within the next few months, if you're building an emergency fund you might need to tap quickly, or if interest rates are falling and you want to keep your options open. Savings accounts also work better for money you're adding to regularly, since CDs lock in a single deposit for the full term.

How to compare CD rates across banks

CD rates vary significantly between banks. A large national bank might offer 3.5% on a 1-year CD, while an online bank or credit union might offer 4.8% for the same term. Over a year, that difference adds up: $10,000 at 3.5% earns $350, while $10,000 at 4.8% earns $480—a $130 difference on the same deposit.

Check rates at multiple banks before you decide. Online banks and credit unions often pay higher rates than brick-and-mortar banks because they have lower overhead costs. Bankrate, DepositAccounts, and the banks' own websites all publish current CD rates. Compare the same term length across banks to see the real difference.

Also check whether the bank charges a monthly maintenance fee on the CD. Most don't, but some do, and that fee reduces your net earnings. A CD with a $10 annual fee and 4.5% interest is less valuable than one with no fee and 4.4% interest.

Frequently Asked Questions

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

No. A CD is a fixed deposit for a fixed term. Once you open it, you cannot add more money to that CD. If you want to deposit additional funds, you open a separate CD or use a savings account. Some banks let you open multiple CDs at different times.

What's the difference between a CD and a money market account?

A money market account is a hybrid: it pays interest like a CD but lets you withdraw money like a savings account, usually with a debit card or check. The tradeoff is that money market rates are typically lower than CD rates but higher than savings account rates. Money market accounts also often require a higher minimum deposit.

Do I pay taxes on CD interest?

Yes. CD interest is taxable income in the year it's earned. The bank sends you a 1099-INT form at tax time showing how much interest you earned. You report this on your tax return. This is true whether you withdraw the money or let it stay in the account.

What happens if I die before my CD matures?

Your CD becomes part of your estate and passes to your beneficiaries or heirs according to your will or state law. The CD continues to earn interest until maturity, and your beneficiaries can withdraw it then without penalty. If they need the money before maturity, they pay the early withdrawal penalty like anyone else would.

Can I use a CD as collateral for a loan?

Yes. Some banks let you borrow against a CD at a lower interest rate than an unsecured personal loan. The bank holds the CD as collateral, so if you don't repay the loan, they take the CD funds. This is called a CD-secured loan and can be useful if you need cash but don't want to trigger the early withdrawal penalty.