Certificates of Deposit
The plain answer
Section titled “The plain answer”A certificate of deposit, or CD, is a deposit account that holds your money for a set term and usually pays a stated yield. In exchange for rate certainty, you may owe a penalty if you withdraw before the term ends. Use a CD for money with a known timeline, not for cash you may need without warning.
How it actually works
Section titled “How it actually works”The term is the period you agree to leave the deposit in the account. Maturity is the date that period ends. At maturity, you can usually withdraw the balance, move it, or let the CD renew under the institution’s terms.
Many CDs pay a fixed rate for the term, meaning the institution does not change it as market rates move. Annual percentage yield, or APY, shows the return after compounding is included. Some CDs have different rate structures, so confirm whether the APY can change.
An early withdrawal penalty is a charge for taking money out before maturity. The penalty may reduce the interest you earned and, under some terms, may affect principal. Principal is the amount you originally deposited.
After maturity, a renewing CD may enter a grace period, which is a window when you can withdraw or change it without the usual early penalty. If you do nothing, the institution may renew the CD at the term and rate then available.
Eligible CDs at insured banks and credit unions receive federal deposit protection subject to current coverage rules. The CD is counted with your other deposits at the same institution under the applicable ownership category.
What this means for you
Section titled “What this means for you”A fixed APY protects you if market rates fall, but it can leave you earning less if rates rise. The withdrawal penalty also reduces flexibility. Choose a term that ends before you expect to need the money.
Before opening a CD, check:
- The APY and whether it is fixed
- The maturity date
- The early withdrawal penalty
- Whether partial withdrawals are allowed
- Renewal terms and the grace period
- Federal deposit insurance
Keep emergency savings outside a CD unless you have enough accessible cash elsewhere. Use the CD only when the added yield or rate certainty is worth giving up access.
Common mistakes
Section titled “Common mistakes”One mistake is choosing the highest APY without considering the term. A longer commitment can create trouble if your goal arrives sooner or your plans change.
Another mistake is forgetting automatic renewal. Record the maturity date and review the renewal notice so your money does not enter a new term you did not choose.
Do not assume every CD has the same penalty or rate structure. Read the deposit agreement before funding it.
Related pages
Section titled “Related pages”Educational content, not personalized financial, tax, or legal advice. No affiliate relationships. Figures are for tax year 2026 and change annually.Read the full disclaimer.