The Certificate of Deposit (CD) Calculator can help determine the accumulated interest earnings on CDs over time. It also takes into consideration taxes to provide more accurate results.
• Enter your Initial deposit, annual Interest rate, and CD duration in Years and Months.
• Select the bank's Compound Frequency (e.g. daily, monthly, or annually) to compute exact APY.
• Provide your Marginal tax rate to account for federal and state tax liability on interest gains.
Configure your upfront deposit amount, rates, duration, and tax settings.
Periodic interest accretion and ending balance breakdown.
| Year | Deposit | Interest | Ending balance |
|---|---|---|---|
| Year 1 | $10,000.00 | +$500.00 | $10,500.00 |
| Year 2 | $0.00 | +$525.00 | $11,025.00 |
| Year 3 | $0.00 | +$551.25 | $11,576.25 |
A Certificate of Deposit is a federally insured savings instrument offered by banks and credit unions with a fixed term and guaranteed interest rate. In exchange for locking in your principal until maturity, CDs generally pay higher yields than standard savings accounts.
The nominal interest rate is the base percentage before compounding. Annual Percentage Yield (APY) reflects the true annual return accounting for intra-year compounding (daily, monthly, or quarterly).
CD interest is taxed as ordinary income at your marginal federal and state tax rates in the year it accrues, even if the CD has not yet matured and the funds remain locked in the account.
Withdrawing funds prior to maturity typically incurs an early withdrawal penalty (often 3 to 12 months worth of interest). For liquid needs, consider building a multi-tranche CD ladder.
Universal interest rate engine supporting simple and compound accumulation.
Calculate compound returns with various compounding frequencies and monthly additions.
Plan your regular savings contributions to hit milestone financial goals.