Compare the exact dollar yield, rate-lock protection, and early withdrawal penalties between high-yield savings accounts and fixed certificates of deposit.
| Feature | HYSA | Certificate of Deposit |
|---|---|---|
| APY Rate | 4.25% (Floating) | 5.10% (Locked) |
| Final Account Balance | $26,070 | $26,288 |
| Liquidity & Access | Immediate (No Fees) | Locked until maturity |
| Early Break Penalty | $0 | -$319 (3 mo interest) |
Both High-Yield Savings Accounts (HYSAs) and Certificates of Deposit (CDs) calculate interest using monthly compounding:
Where P is deposit principal, r is the annual APY rate, and n is the number of months held.
The Early Withdrawal Penalty Risk: If you withdraw money from a CD prior to maturity, the financial institution imposes a penalty (typically 90 days of interest on a 1-year CD). On a $25,000 deposit at 5.10% APY, a 3-month penalty equals $318.75. If you break the CD at month 6, your net earned interest drops from $637 to $319, which is significantly worse than the $531 you would have earned in a penalty-free HYSA!
* Disclaimer: APY rates and early withdrawal penalties vary by bank and credit union. This tool is for educational comparison purposes only.
Model exponential long-term asset growth with recurring monthly contributions.
Calculate your ideal 3 to 6-month cash safety net size for an HYSA.
Compute Future Value (FV) and see how inflation erodes cash purchasing power.
Model financial independence milestones and safe portfolio withdrawal rates.