A certificate of deposit (CD) is a savings product offered by banks and credit unions that pays a fixed interest rate in exchange for leaving your money on deposit for a specific period — typically anywhere from one month to five years. CDs are federally insured up to $250,000 and consistently pay higher rates than standard savings accounts, making them a reliable tool for money you do not need immediate access to.
How CDs Work
When you open a CD, you agree to deposit a set amount of money (the principal) for a set amount of time (the term). The bank pays you a fixed annual percentage yield (APY) for the duration of the term. At maturity — when the term ends — you receive your original deposit plus the interest earned.
The catch: if you withdraw the money before the term ends, you pay an early withdrawal penalty. This is usually 60 to 180 days of interest, depending on the CD’s term length. Because of this, CDs are best suited for money you are confident you will not need before the maturity date.
CD Terms and Rates
CD terms range from as short as one month to as long as 10 years. The most common terms are 3 months, 6 months, 1 year, 2 years, and 5 years. Generally, longer terms pay higher rates — though the relationship between term length and rate is influenced by the broader interest rate environment.
Rates vary significantly by institution. Online banks and credit unions typically offer significantly higher CD rates than traditional brick-and-mortar banks, which rely on convenience rather than rate competition. Comparing rates at a few institutions before opening a CD can add meaningful interest to your return.
Types of CDs
Beyond the standard CD, several variations exist:
- High-yield CD: Offered primarily by online banks, these pay rates well above the national average.
- No-penalty CD: Allows you to withdraw your money before maturity without paying a penalty. The rate is usually lower than a traditional CD, but the flexibility can be worth the trade-off.
- Bump-up CD: Allows you to request a rate increase once during the term if rates rise. Good when interest rates are expected to increase.
- Jumbo CD: Requires a larger minimum deposit (typically $100,000 or more) and may pay a slightly higher rate.
- Brokered CD: Purchased through a brokerage rather than directly from a bank. Can be sold on the secondary market before maturity, which avoids early withdrawal penalties but introduces some price risk.
CD Laddering: A Strategy for More Flexibility
One of the most common CD strategies is laddering — splitting your money across multiple CDs with staggered maturity dates. For example, instead of putting $20,000 into a single 5-year CD, you put $4,000 each into 1-year, 2-year, 3-year, 4-year, and 5-year CDs.
The benefits: every year a CD matures, giving you access to funds and the option to reinvest at current rates. You capture the higher rates of longer-term CDs without locking all your money up at once. This approach balances yield and liquidity effectively.
How CDs Compare to Other Savings Options
- High-yield savings account: More flexible than a CD — no penalty for withdrawals — but the rate is variable and can change. In a rising rate environment, a high-yield savings account may outperform a locked-in CD rate. In a falling rate environment, the locked-in CD rate wins.
- Treasury bills: Short-term US government securities (4, 8, 13, 26, and 52 weeks) that are exempt from state and local income tax. Rates are comparable to CDs. A good alternative if your state tax rate is high.
- Money market account: Insured like a CD, variable rate like a savings account, with limited check-writing access. Better for accessible funds; CDs are better for money you can lock up.
When a CD Makes Sense
A CD is a good fit when:
- You have a specific future expense (home purchase, car, college tuition) and know exactly when you will need the money
- You want to lock in a rate before rates fall
- You want guaranteed, risk-free growth with no chance of losing principal
- You have more cash than you need in a liquid emergency fund and want the excess to work harder
How to Open a CD
Opening a CD is straightforward. Compare rates at online banks, credit unions, and your existing bank. Once you choose, open the account online, fund it with a transfer from your bank account, and note the maturity date on your calendar. Set a reminder for a few weeks before maturity — most CDs auto-renew at the then-current rate unless you actively redirect the funds.
Bottom Line
CDs are a simple, risk-free way to earn more than a standard savings account on money you do not need for a defined period. They are not exciting, but they are reliable and predictable. For short-term savings goals or the portion of your emergency fund beyond your three-to-six-month buffer, a CD is often the right tool.