HYSA or CD? It Depends on What You Need the Money For
A high-yield savings account (HYSA) lets you deposit and withdraw freely while still earning a competitive interest rate that's typically compounded daily. A certificate of deposit (CD), on the other hand, requires you to lock your money away for a fixed term, but usually pays a somewhat higher rate in exchange. If you know exactly when you'll need the cash and are confident you won't touch it before then, a CD is the more efficient choice. If there's a real chance you'll need the money sooner, a HYSA is the safer option since CDs typically charge an early withdrawal penalty that can wipe out several months of interest. This calculator compares the after-tax interest of both options for the same deposit amount and holding period. In practice, many people build up an emergency fund or short-term savings in a HYSA first, then move it into a CD once their plans firm up, or split the difference by keeping an emergency cushion in a HYSA while parking extra savings in a CD for a bit more yield.
How It's Calculated
| Product | Pre-Tax Interest Formula |
|---|---|
| HYSA | Deposit × Annual Rate × (Months/12) |
| CD | Deposit × Annual Rate × (Months/12) |
Frequently Asked Questions
Most HYSAs compound interest daily and pay it monthly, and this calculator shows a simplified estimate assuming a constant balance.
CD rates are generally higher, but HYSA rates can be competitive or higher during promotional periods, so compare current rates directly.
Early withdrawal from a CD usually triggers a penalty that eats into interest, so a HYSA is the safer choice if your timeline is uncertain.
※ Actual rates, promotions, and terms vary by bank, so treat this as a rough estimate.