Calculate CD maturity value, interest, APY, after-tax growth, inflation-adjusted value, early-withdrawal penalties, CD ladder results and CD vs HYSA comparisons.
| Initial Deposit | $10,000 |
| Pre-Tax Total Interest | +$500 |
| Tax Drag (24%) | -$120 |
| Net After-Tax Interest | +$380 |
| Real Inflation Balance | $10,126.83 |
| Month | Interest Earned | Ending Balance | After Tax Balance | Real Value |
|---|---|---|---|---|
| Mo 1 | +$40.74 | $10,040.74 | $10,030.96 | $10,010.34 |
| Mo 2 | +$40.91 | $10,081.65 | $10,062.05 | $10,020.73 |
| Mo 3 | +$41.07 | $10,122.72 | $10,093.27 | $10,031.15 |
| Mo 4 | +$41.24 | $10,163.96 | $10,124.61 | $10,041.62 |
| Mo 5 | +$41.41 | $10,205.37 | $10,156.08 | $10,052.13 |
| Mo 6 | +$41.58 | $10,246.95 | $10,187.68 | $10,062.68 |
| Mo 7 | +$41.75 | $10,288.7 | $10,219.41 | $10,073.26 |
| Mo 8 | +$41.92 | $10,330.62 | $10,251.27 | $10,083.9 |
| Mo 9 | +$42.09 | $10,372.7 | $10,283.25 | $10,094.57 |
| Mo 10 | +$42.26 | $10,414.96 | $10,315.37 | $10,105.28 |
| Mo 11 | +$42.43 | $10,457.4 | $10,347.62 | $10,116.03 |
| Mo 12 | +$42.6 | $10,500 | $10,380 | $10,126.83 |
| Annual Cash Liquidity Event | $5,000 |
| Compounded 5-Year Ladder Value | $28,954.78 |
| Single CD 5-Year Value | $32,288.7 |
| Total CD Return (5.25%) | $22,155.13 |
| Total HYSA Return (Decaying) | $21,465.75 |
| Rate Lock Benefit | +3.45% |
Locking in a fixed CD at 5.25% APY protects your capital against expected market rate cuts, yielding an extra +$689.38 compared to a variable HYSA.
| Gross Interest Earned | +$355.78 |
| Penalty Fee (180 Days) | -$355.07 |
| Net Interest Received | $0.71 |
| Break-Even Period for New Rate | 29 months |
Gross interest accrued so far exceeds penalty charges. Cashing out to move to 5.8% APY will recover the penalty fee within 29 months.
| Target Final Balance | $50,000 |
| Total Interest to be Earned | +$6,808.12 |
| Percentage Yield Growth | +15.76% |
Depositing $43,191.88 today into a 5.0% APY CD will grow to your goal of $50,000 over 3 years.
| Standard Fixed CD Balance | $10,475 |
| Specialty CD Balance | $10,450 |
| Variance | $-25 |
No-Penalty CD gives full liquidity after 7 days without penalty, with slightly lower yield.
Calculate CD maturity value, interest, APY, after-tax growth, inflation-adjusted value, early-withdrawal penalties, CD ladder results and CD vs HYSA comparisons.
A CD calculator estimates how a certificate of deposit can grow over a defined term using the starting deposit, annual rate or APY, compounding frequency, and other assumptions. A more advanced CD calculator goes beyond the maturity balance to estimate after-tax interest, inflation-adjusted purchasing power, CD ladder outcomes, early-withdrawal costs, break-even periods, and the starting deposit required to reach a target balance.
A certificate of deposit is generally a time-deposit product where money is committed for a specified period in exchange for a stated or otherwise defined return. The trade-off is usually liquidity: a conventional CD can provide a predictable return under the selected assumptions, while accessing the money before maturity may involve product-specific penalties or restrictions.
For a broader comparison of flexible savings strategies, the Savings Calculator can be used alongside this calculator. For pure return comparisons across different asset classes, our ROI Calculator provides a useful companion scenario.
Start by entering the amount you plan to deposit. Then select the CD term, enter the rate or APY used by the model, and choose the compounding frequency.
Review final balance, gross pre-tax interest, effective APY, tax drag, net after-tax return, and real purchasing-power balance.
Spread capital across multiple staggered maturities to balance long-term yields with annual liquidity events.
Test rate-lock protection against a modeled decaying savings account yield path during central bank rate cuts.
Calculate accrued interest, penalty deductions, net early payout, and break-even months for switching to a higher rate.
Work backward from a target maturity sum to find the exact initial principal required today.
Compare No-Penalty liquid CDs and Bump-Up CDs against traditional fixed-rate certificates.
For a standard fixed-rate compound-growth model:
A daily-compounded CD uses 365 compounding intervals per year, producing slightly higher terminal growth than monthly or annual compounding under the same nominal rate.
A CD's nominal rate and APY are related, but they are not identical metrics. The nominal annual rate does not reflect intra-year compounding, while APY reflects the true effective annual yield:
When comparing CD offers across different banks, always verify whether quotes represent nominal APR or APY. For general rate conversions, use our Interest Rate Calculator.
Interest earned on CDs held in standard taxable accounts is subject to federal and state income tax as ordinary income in the year it is credited.
Holding CDs inside tax-advantaged accounts (such as Traditional or Roth IRAs) defers or eliminates this annual tax drag.
A CD can grow in nominal dollars while adding much less purchasing power in real terms:
For standalone purchasing power analyses across historical and custom inflation scenarios, explore the Inflation Calculator.
For amortized loan schedules where balances decrease rather than compound upward, see the Amortization Calculator.
A CD ladder divides a larger cash balance across several CDs with staggered maturity dates (e.g. 1-year, 2-year, 3-year, 4-year, and 5-year CDs). This provides predictable annual cash liquidity while capturing higher long-term fixed rates.
When central banks cut interest rates, variable HYSA yields drop automatically, whereas a fixed CD locks in guaranteed interest:
For flexible deposits where liquidity is paramount, compare with the Savings Calculator.
Breaking a CD before maturity triggers early withdrawal penalties (typically 90 to 180 days of simple interest):
Solve backward to determine how much capital must be deposited today to achieve a specific future balance:
For recurring contribution schedules, model projections with the Future Value Calculator.
Allows penalty-free withdrawals after 7 days from funding in exchange for a modest yield spread ($10,000 at 4.75% standard vs 4.50% liquid yields $10,450 vs $10,475, a -$25 liquidity cost).
Permits a one-time interest rate increase if prevailing market yields rise during the term, providing upside protection in rising-rate environments.
For international or country-specific fixed-term bank deposits, see our FD Calculator.
This CD calculator is an educational mathematical modeling tool. Eligible deposits at participating banks and credit unions may qualify for deposit insurance through the FDIC or NCUA subject to applicable $250,000 coverage limits and ownership-category rules. Exact CD terms, early-withdrawal penalties, renewal grace periods, and tax obligations depend on your specific financial institution and individual tax circumstances.