A CD locks in a fixed APY for a term and typically pays the highest available rate for that deposit size. A money market account pays a competitive variable rate with full liquidity and check-writing access. Pick a CD when you can commit to a term in exchange for a higher rate lock; pick a money market when you want competitive interest and the flexibility to access funds without penalty.
Banks and credit unions
Fixed APY for a defined term — guaranteed rate in exchange for locking your deposit.
Pros
Banks and credit unions
Competitive variable interest with check-writing and full liquidity.
Pros
| Spec | Certificate of Deposit (CD) | Money Market Account (MMA) |
|---|---|---|
| Best for | Savers who can commit to a 6-month to 5-year term and want a guaranteed, typically higher rate than variable-rate accounts. | Savers who want a rate competitive with CDs but need to keep the money accessible — especially for check-writing or debit needs. |
◈ marks the stronger option for that row.
Pick Certificate of Deposit (CD) if: Savers who can commit to a 6-month to 5-year term and want a guaranteed, typically higher rate than variable-rate accounts.
Pick Money Market Account (MMA) if: Savers who want a rate competitive with CDs but need to keep the money accessible — especially for check-writing or debit needs.
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CDs typically pay slightly more than money market accounts for the same deposit size because you give up liquidity in exchange for the rate lock. The gap narrows (or sometimes reverses) when market rates are rising and new MMA rates are updated faster than existing CDs. In a flat or falling rate environment, CDs usually win. Check current rates at each bank — the spread between CDs and MMAs changes with Federal Reserve policy. Source: Federal Reserve rate data at federalreserve.gov.
Both have the same FDIC protection — deposits at FDIC-member banks are insured up to $250,000 per depositor, per ownership category, for both CDs and money market accounts. Neither is 'safer' than the other in terms of deposit insurance. The difference is liquidity: a money market account gives you access to your funds without penalty; a CD charges an early-withdrawal penalty. Source: fdic.gov.
A CD ladder splits a deposit across multiple CDs with staggered maturity dates — for example, $5,000 each in 1-, 2-, 3-, 4-, and 5-year CDs. As each CD matures, you reinvest in a new long-term CD, maintaining exposure to higher long-term rates while ensuring funds become available at regular intervals. A CD ladder is useful when you want rates closer to long-term CDs but don't want all your money locked for years at a time. Source: FDIC consumer guides (fdic.gov); Federal Reserve.
Early-withdrawal penalties vary by bank and term. Common benchmarks: 3-month CD — typically 60–90 days of interest; 1-year CD — typically 90–180 days of interest; 2-year or longer CD — typically 180–365 days of interest. Some banks impose lower penalties, especially for shorter terms. Breaking a long-term CD can still result in net positive interest if the CD has been held long enough. Verify the specific penalty terms at your bank before opening a CD. Source: FDIC consumer guides (fdic.gov).
A money market account (or high-yield savings account) is better for an emergency fund. Emergency funds must be accessible without penalty — a CD charges an early-withdrawal fee if you need the money before maturity, defeating the purpose. The CFPB recommends keeping 3–6 months of expenses in an account you can access immediately. Use CDs only for money you won't need for a defined period beyond your emergency reserve. Source: consumerfinance.gov; fdic.gov.
No — they are different products with different risk profiles. A money market account (MMA) at a bank is an FDIC-insured deposit product; your principal is protected up to $250,000. A money market mutual fund is an investment product that holds short-term debt securities — it is NOT FDIC-insured and can theoretically lose value (as some funds did briefly in 2008 when they 'broke the buck'). This comparison covers bank-account MMAs only. Source: SEC investor.gov; fdic.gov.
A no-penalty CD lets you withdraw your full balance before maturity without an early-withdrawal penalty (typically after a 7-day initial lockout). In exchange, the APY is slightly below a standard CD of the same term. No-penalty CDs often pay more than money market accounts while offering similar withdrawal flexibility. The key difference: an MMA is fully open-ended (no maturity date), while a no-penalty CD still has a term end date and auto-renews unless you act. For money you won't touch for 6–12 months, a no-penalty CD can be a better rate without meaningfully more constraint. Source: CFPB at consumerfinance.gov.
Check-writing is a common feature of money market accounts at traditional banks, but not universal — especially at online banks where MMAs may be more savings-account-like. Some online bank MMAs (Ally Money Market, for example) do include check-writing; others do not. Always confirm check-writing availability and any per-check limits before choosing an MMA as a checking alternative. At credit unions, share draft accounts (the equivalent of checking) are distinct from money market share accounts. Source: CFPB bank account comparison tool at consumerfinance.gov.
Both are taxed identically as ordinary income at your federal marginal rate in the year the interest is credited to your account. Banks issue a Form 1099-INT for any account earning $10 or more in annual interest. For CDs that span multiple tax years, interest is generally taxed annually as it accrues — not just at maturity — even if the funds remain in the CD. State income tax treatment varies. Neither account type has a tax advantage over the other; for tax-advantaged savings, consider an IRA or HSA instead. Source: IRS Publication 550 at irs.gov.
Minimum deposit requirements vary significantly. Many online bank money market accounts have no minimum opening deposit — you can open with any amount. Traditional bank MMAs often require $1,000–$2,500 to earn the top rate or waive fees. CDs at online banks often have low minimums ($0–$500 for standard terms), while jumbo CDs (typically defined as $100,000 or more) offer higher rates in exchange for the larger deposit. Credit union share certificates (the equivalent of CDs) often have a minimum deposit of $500–$1,000. Always verify the minimum deposit and balance tiers at each institution before choosing. Source: FDIC at fdic.gov; NCUA at mycreditunion.gov.
Independent editorial comparison. ClearValue Lending is not the issuer of any product compared here; affiliate links may pay a referral commission at no cost to you — selection is independent of compensation.