Savings accounts, certificates of deposit, and money market deposit accounts can all hold cash at a bank. Their main differences involve access, account conditions, and how interest is offered. This comparison uses those features to help explain which questions to ask before opening an account. FDIC deposit-account guide
Here, "high-yield savings" means a savings account marketed for its yield. The comparison evaluates account terms rather than naming a winning bank or quoting an unverified current rate. An attractive advertised yield needs to be considered alongside the conditions required to receive it.
Compare access before comparing interest
| Feature | High-yield savings account | Conventional CD | Money market deposit account |
|---|---|---|---|
| Fixed holding term | Usually no stated maturity | Has a stated term | No required fixed holding period |
| Access question | Check withdrawal and transfer arrangements | Check early-withdrawal terms | Check withdrawal and transaction arrangements |
| Balance conditions | Check opening and ongoing requirements | Check opening deposit requirements | Check minimum-balance requirements |
| Interest question | Can the offered rate change? | Is the rate fixed or variable? | Can the offered rate change? |
| Deposit insurance | Eligible at an insured bank, within applicable limits | Eligible at an insured bank, within applicable limits | Eligible at an insured bank, within applicable limits |
The FDIC explains that a CD typically requires money to stay on deposit for a specified period. Early withdrawal can involve a penalty or losing interest. Money market deposit accounts do not require the same designated holding period.
That distinction matters when deciding whether the money has a predictable use date. The ability to earn interest and the ability to reach the money when needed deserve separate checks.
Savings accounts: check how access works
A savings account can hold money for future use without the stated maturity of a conventional CD. Read how money moves into and out of the account, including the available transfer arrangements and any account conditions.
An emergency reserve needs access that works when an unexpected bill arrives. It can also be useful to keep that reserve distinct from everyday spending so the balance has a clear purpose.
The emergency-fund budgeting guide explains how to connect a reserve with bill timing and realistic contributions. Account selection comes after understanding that purpose.
CDs: examine the commitment and exit terms
A CD is a deposit with a stated term. Before opening it, read the maturity information, whether the rate is fixed or variable, the early-withdrawal terms, and what happens when the term ends.
A quoted yield does not explain the cost of needing the money sooner. The FDIC notes that withdrawing early can mean a penalty or the loss of some or all interest earned. The actual product agreement determines the terms.
If the money has a planned use date, compare that date with the CD's maturity. If access may be needed earlier, examine the exit conditions as part of the initial decision.
Money market accounts: identify the actual product
A money market deposit account is a bank deposit product. The FDIC says these accounts may have higher minimum-balance requirements than some other account options. Check the actual requirements and available services for the account being considered.
A money market mutual fund is different. Mutual funds are investments outside FDIC deposit insurance, even when purchased through a bank. Similar wording can make this distinction easy to miss. FDIC covered and excluded products
Ask whether the product is a deposit account or an investment before comparing its yield with a savings account or CD.
Read APY together with the conditions
Annual percentage yield, or APY, reflects interest and the frequency of compounding. The CFPB's calculation rules also address variable rates, introductory rates, and balance tiers. Those details help explain why an advertised yield needs its surrounding terms. CFPB APY rules
Compare APY with fees, minimum balances, and the period for which any promotional terms apply. Check whether the quoted return can change and whether your intended balance receives the advertised terms.
Finish with an insurance check
The standard FDIC limit is $250,000 per depositor, per insured bank, for each ownership category. Eligible deposits in the same category at the same bank are combined, even when they are spread across different deposit products. FDIC insurance rules
Our FDIC insurance guide explains that calculation. For this comparison, the practical sequence is purpose, access, terms, and coverage. A yield is useful information within that decision, rather than a complete measure of the account's suitability.
If you are also paying down balances, our comparison of the debt snowball and avalanche methods explains two ways to organize extra payments. For long-term savings with tax rules attached, see our Roth vs. traditional IRA comparison.
