CD Maturity Calculator
Enter the amount you deposit, the APY and the term. You get the value at maturity, the interest earned, and how it compares to a simple no-interest account.
Assumes annual percentage yield (APY) compounding; the value shown is before taxes. Early withdrawal usually triggers a penalty.
Frequently asked questions
What is a CD and how does maturity work?
A certificate of deposit (CD) is a bank product that pays a fixed rate for a fixed term. "Maturity" is the date the term ends and you can take out your principal plus the interest earned. Withdraw early and most banks charge a penalty — often several months of interest — so a CD is best for money you will not need until the maturity date.
APY vs interest rate — which should I enter?
Enter the APY (Annual Percentage Yield). APY already accounts for how often interest compounds, so you can compute the final value with the simple formula principal × (1 + APY)^(years). If you only have a nominal rate, use our APY Calculator first to convert it.
How much interest will I actually keep?
CD interest is taxable in the year it is earned, even if you leave it in the CD. A $10,000 CD at 5% APY for one year earns $500, but a taxpayer in the 22% federal bracket keeps about $390 after federal tax (state tax may add more). The calculator shows the gross value before tax.
Is a CD better than a high-yield savings account?
A CD locks the rate for the term, which protects you if rates fall. A savings account rate can drop at any time but keeps your money liquid. CDs often pay a bit more for the same institution, in exchange for giving up access to the cash until maturity.