Types of savings accounts: what each one is actually for

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There is no single “best” savings account, because these accounts are not interchangeable. What separates them is how easily you can reach the money, how the interest works, and whether a tax rule is attached. This guide is written for someone who has money to set aside and wants to understand the choices before opening anything. A useful first step: write down what the money is for and when you might need it. That one answer narrows the field faster than any rate comparison.

A savings account, in plain terms, is a deposit account that keeps your principal secure and typically earns interest (FDIC). From that simple base, the options branch out. Some pay more. Some lock the money up. Some exist only to hold cash for a specific goal like medical bills, education, or an emergency reserve (CFPB). The rest of this guide walks through the main types so the differences are clear.

Contents

Traditional savings accounts

A traditional savings account is the plain-vanilla version: a deposit account that keeps your principal secure and usually earns some interest (FDIC). Its job is to give you a place to set money aside so it can grow over time with interest (CFPB).

The appeal is access and simplicity. The money is there when you want it, and at an insured bank or credit union it is backed by federal deposit insurance up to the applicable limit (CFPB). The trade-off is the rate. Traditional accounts often pay less than the accounts that follow. For an everyday cushion you dip into regularly, that may not matter much. For a larger balance sitting untouched, the gap between a traditional account and a higher-paying one can add up. Which is where the next type comes in.

High-yield savings accounts

A high-yield savings account is a bank account that often carries a higher interest rate, or annual percentage yield (APY), than a traditional savings account (CFPB). It is sometimes called a high-interest savings account. The core idea is right there in the name: more interest on the same dollars.

How much more? Regulators have described consumer understanding of these products bluntly. Consumers reasonably understand “high interest” savings accounts to be a distinct product whose rates are many times higher than traditional savings account rates (CFPB). That is the expectation the label sets.

Two things to hold onto. First, “high-yield” is a marketing label, not a fixed rate—the interest rate is variable and can move up or down. Second, a high-yield account is still a savings account. It carries the same deposit-insurance protection at an insured institution and the same everyday accessibility. The higher rate is the difference; it is not a different kind of risk. If a balance is sitting idle, the yield is the lever this account type pulls.

Money market accounts

A money market account (MMA) is a deposit account offered by banks and credit unions, and like other deposit accounts it is insured by the FDIC or NCUA up to $250,000 held by the same owner or owners (CFPB). So far, it sounds like a savings account with a fancier name. In practice, it sits between a savings account and a checking account.

Here is the give-and-take. Money market accounts tend to pay higher interest rates than other types of savings accounts (CFPB). In exchange, they usually limit the number of transactions you can make by check, debit card, or electronic transfer. You can generally make unlimited withdrawals and payments using an ATM or by withdrawing in person, by mail, or by telephone (CFPB).

Now the distinction that trips people up. A money market account is not a money market fund. These two products are easy to confuse because the names are so similar, but they are different animals. Money Market Deposit Accounts are deposits and are covered by FDIC insurance. Money market mutual funds are funds that invest primarily in short-term corporate bonds or government securities and are not deposit accounts insured by the FDIC (FDIC). Money invested in a money market fund is not guaranteed by the FDIC, and as with any investment there is a risk you may lose some or all of the money you invested (SEC). One word—account versus fund—changes whether your money is insured. Read the product name closely.

Certificates of deposit and share certificates

A certificate of deposit (CD) is a type of savings account where you generally agree to keep your money in the account without withdrawing for a set length of time. Withdrawing early means paying a penalty fee to the bank (CFPB). You give up easy access; in return the account typically offers a fixed rate for the term.

When comparing CDs, three things do the work: the term (how long you agree to leave the money in), the interest rate you earn, and the size of the penalty for withdrawing before the term ends (CFPB). Those three levers vary from one offer to the next.

Credit unions offer a close cousin. A share certificate is comparable to a bank CD—a term account that earns a dividend at a specified rate, either fixed or variable, and usually requires a minimum balance. The minimum term is typically three months and may extend up to five years or longer (NCUA). The mechanics are nearly identical; the vocabulary differs because credit unions pay “dividends” on “shares” rather than interest on deposits. A CD or share certificate rewards money you are confident you will not need soon, and penalizes you if you are wrong about that.

U.S. savings bonds: Series EE and Series I

A U.S. savings bond is a loan to the federal government. When you buy one, you lend money to the U.S. government, and in turn the government agrees to pay that money back later plus additional money in interest (TreasuryDirect). Two current series work differently enough to be worth separating.

A Series I savings bond has an interest rate that changes every six months, based on inflation. The rate can go up and the rate can go down (TreasuryDirect). You can cash in an I bond after 12 months, but if you cash it in before five years, you lose the last three months of interest—so cashing in after 18 months gets you the first 15 months of interest (TreasuryDirect).

A Series EE savings bond carries a specific Treasury commitment. For EE bonds bought now, the Treasury guarantees the bond will double in value in 20 years, adding money at the 20-year mark if needed to make that happen (TreasuryDirect). That doubling guarantee is a contractual term of the bond, and it hinges on holding for the full 20 years. Savings bonds are a place for money you can leave alone for years, not cash you might need next month.

Health savings accounts

A health savings account (HSA) is a tax-exempt trust or custodial account you set up with a qualified HSA trustee to pay or reimburse certain medical expenses you incur (IRS). What makes it distinctive is the tax treatment: the interest or other earnings on the assets in the account are tax free, and distributions may be tax free if you pay qualified medical expenses (IRS).

There is a gate on the front door. To be an eligible individual, you must be covered under a high deductible health plan (HDHP), have no other health coverage except what is permitted, not be enrolled in Medicare, and not be claimed as a dependent on someone else’s tax return (IRS). Miss any of those and the account is not available to you.

One behavioral wrinkle is worth naming. An HSA only delivers its tax benefit if money actually goes in—and many accounts sit empty. In one study, more than half of individuals with an HSA (55.0%) had not contributed money into it in the last 12 months (JAMA Network Open). That finding describes an association across a study population; it does not tell you what any individual should contribute or whether an HSA fits your situation. It simply shows that owning the account and using it are two different things. Contribution limits and eligibility rules are set by the IRS and change over time, so the current figures are worth confirming directly with the IRS before acting.

Education savings accounts: 529 plans and Coverdell ESAs

Two account types are built specifically for education costs, and both share a tax feature: earnings grow without annual tax while inside the account.

A 529 plan, formally a qualified tuition program (QTP), is a program set up to let you prepay or contribute to an account for a student’s qualified education expenses at an eligible educational institution (IRS). Earnings accumulate tax free while in the account, and the beneficiary generally doesn’t have to include those earnings as income (IRS).

A Coverdell education savings account (Coverdell ESA) is a trust or custodial account set up in the United States solely for paying qualified education expenses for the account’s designated beneficiary (IRS). It comes with a firm cap: total contributions for a beneficiary in any year can’t be more than $2,000, no matter how many separate Coverdell ESAs have been established for that beneficiary (IRS).

Research on who actually uses these accounts adds useful context. One study found that material hardship is negatively associated with 529-plan participation, meaning households under financial strain were less likely to participate (Social Science Research). That is a population-level association, not a rule about any single family, and it does not characterize a 529 as guaranteed to fund an education. Tax treatment can also vary by state and situation, which is worth checking before committing.

Commitment and prize-linked savings accounts

Some accounts are designed less around interest and more around behavior. A commitment savings account uses a self-imposed barrier—often an early withdrawal penalty—to help someone leave money alone. The evidence here is striking: across experimental treatments, higher early withdrawal penalties on a commitment account sometimes increased and never reduced allocations to that account (Journal of Public Economics). In one experiment, as the penalty moved from 10% to 20% to a complete prohibition on early withdrawals, the fraction allocated to the commitment account rose from 39% to 45% to 56% (Journal of Public Economics). People sometimes want the lock precisely because it protects them from themselves. Separate research on a commitment product concluded the savings response represented a lasting change in savings, not merely a short-term response to a new product (The Quarterly Journal of Economics).

A prize-linked savings (PLS) account takes a different tack, replacing guaranteed interest with a chance at a prize. Studying microlevel data from a bank in South Africa, researchers found PLS attractive to a broad group, with financially constrained individuals and those with no other deposit accounts particularly likely to participate (Management Science). By exploiting the random assignment of prizes, they presented causal evidence that PLS substitutes for lottery gambling but complements standard savings (Management Science). These are findings about study populations, not promises about your odds or your balance. Availability of PLS accounts is also limited and varies by location. The point is that the structure of an account—not just its rate—can change how much you actually save.

Pension-linked emergency savings accounts

A pension-linked emergency savings account (PLESA) is a newer option. In general, PLESAs are short-term savings accounts established and maintained within a defined contribution plan (U.S. Department of Labor). In other words, it is an emergency-savings bucket housed inside a workplace retirement plan rather than at a bank. Because it lives inside an employer’s plan, whether one is available to you depends on what your employer offers.

Cash sweep programs in brokerage accounts

If you have a brokerage account, the uninvested cash in it may not just sit there. Some broker-dealers offer programs that automatically transfer, or “sweep,” cash in your brokerage account into a bank deposit account or money market mutual fund; these are often called “bank sweep” or “cash sweep” programs (SEC).

Where the cash lands determines what protects it. If your cash is swept into a bank deposit account, it generally will be eligible for FDIC insurance, subject to applicable limits. If it is swept into a money market mutual fund, that investment generally will not be FDIC-insured but may be eligible for SIPC coverage (SEC). Those are not the same protection. SIPC coverage relates to a failing brokerage, not to guaranteeing the value of an investment. It is worth knowing which destination your sweep uses.

Interest, APY, and compounding

Rates are quoted as APY for a reason. The annual percentage yield measures the total amount of interest paid on an account based on the interest rate and the frequency of compounding (CFPB). Because APY folds in compounding, it lets you compare two accounts on the same footing, which a raw interest rate does not.

Compounding is the engine underneath. Compound interest is when you earn interest on the money you’ve saved and on the interest you earn along the way (CFPB). Interest earning interest is why time in the account matters.

Then there is the tax side. Most interest you receive, or that is credited to an account you can withdraw from without penalty, is taxable income in the year it becomes available to you—though some interest may be tax-exempt (IRS). This reaches further than people expect: certain distributions commonly called dividends are actually taxable interest, including dividends on deposits or share accounts at credit unions, cooperative banks, and mutual savings banks (IRS). So the “dividend” your credit union pays is, for tax purposes, generally interest. How much of the yield you keep depends partly on tax, which is worth factoring in.

FDIC and NCUA insurance: what is and is not protected

Deposit insurance is why an ordinary savings account is considered secure. The FDIC and NCUA guarantee that deposited money will be there when you want to withdraw it, so if you have less than $250,000 in a checking or savings account at an insured bank or credit union, you’ll get all your money back if the institution fails (CFPB).

The two systems mirror each other. The National Credit Union Share Insurance Fund was established by Congress in 1970 to insure member share accounts at federally insured credit unions, and it is similar to the deposit insurance the FDIC provides (NCUA). The Share Insurance Fund insures individual accounts up to $250,000, and a member’s interest in all joint accounts combined is insured up to $250,000 (NCUA). That coverage spans the common account types—regular shares, share drafts, money market accounts, and share certificates all fall under the $250,000 coverage for single ownership accounts (NCUA). Money market deposit accounts at banks carry the same FDIC or NCUA coverage up to $250,000 (CFPB).

The critical limit: this protection covers deposit accounts, not investments. A money market mutual fund swept from a brokerage account is not FDIC-insured (SEC). Deposit insurance protects the account against the institution failing; it does not turn an investment into a guaranteed one. Knowing which of your money is a deposit and which is an investment is the whole game here.

Regulation D and transfer limits

For years, savings accounts came with a monthly transfer cap. Two of the defining features of the “savings deposit” definition were the reservation of the right to require advance notice of withdrawal and a monthly limit on the number of “convenient” transfers or withdrawals from the account (Federal Reserve).

That changed in 2020. The Federal Reserve Board announced an interim final rule to delete the six-per-month limit on convenient transfers from the “savings deposit” definition, allowing depository institutions to immediately suspend enforcement of the six-transfer limit and let customers make unlimited convenient transfers and withdrawals (Federal Reserve). One caution: the rule removed the federal cap, but it did not force banks to drop their own limits. An individual institution may still impose a transfer limit, so it is worth checking your account’s terms rather than assuming the cap is gone everywhere.

How behavior shapes what a savings account can do

The account type is only half the story. How you use it is the other half, and here the research on saving behavior is genuinely useful.

Start with the simplest lever: automation. A common way to save is to set up recurring transfers so money moves automatically from checking to savings, and saving automatically is one of the easiest ways to make your savings consistent so you see it build over time (CFPB). Removing the monthly decision is often what makes saving stick.

Then there is how the mind treats money. Mental accounting is the set of cognitive operations individuals and households use to organize, evaluate, and keep track of financial activities (Journal of Behavioral Decision Making). Each component of mental accounting violates the economic principle of fungibility—the idea that a dollar is a dollar wherever it sits—and as a result, mental accounting influences choice; it matters (Journal of Behavioral Decision Making). In everyday terms, splitting money into labeled accounts—one for emergencies, one for a car, one for a trip—can change how you treat it, even though the dollars are technically identical.

Labeling reaches even into risk. In survey experiments, people were less risky with dollars earmarked for others, risk tolerance varied depending on for whom the dollars were earmarked, and labeling accounts for life-stage events like retirement or college also shaped risk tolerance (Social Forces). Timing helps too. The annual tax refund represents a prime opportunity for lower- and moderate-income households to save, and in one large experiment, filers exposed to behavioral nudges—anchoring, choice architecture, and persuasive messaging—were more likely than a control group to save their refund and, on average, saved more of it (Journal of Consumer Affairs).

All of these are associations observed across study populations, not guarantees that a given technique will work for you. What they suggest is consistent: the structure and labeling around an account can matter as much as which account you pick.

Emergency funds: the foundation

Before optimizing for yield, most savings plans start with a cash reserve. An emergency fund is a cash reserve set aside specifically for unplanned expenses or financial emergencies—common examples include car repairs, home repairs, medical bills, or a loss of income (CFPB).

The value of that reserve is liquidity. Access to liquidity—which can take the form of income flows, savings, credit, and social resources—has been shown to mitigate the effects of financial shocks on a range of household outcomes (Social Indicators Research). That is why an emergency fund usually belongs in an accessible account rather than one that locks the money up.

How much is enough is genuinely individual, and the data suggest many households are short: only 49 percent of families have three months of their normal, recurring expenses saved in liquid assets, and only 39 percent have six months (Journal of Accounting and Public Policy). Those figures describe how families are doing on average; they are not a prescription of what your target should be. Even a small reserve helps—a reserve for financial shocks can help you avoid relying on other forms of credit or loans that can turn into debt (CFPB).

When keeping what you have is the right answer

Opening a new account is not automatically progress. There are real reasons the account you already have may serve you better than a shiny alternative.

Chasing a higher yield can cost more than it earns if it means locking money you might actually need. A CD or savings bond penalizes early withdrawal, and for a Series I bond that penalty is losing the last three months of interest if you cash in before five years (TreasuryDirect). If there is any real chance you’ll need the cash, an accessible account maintained is often more useful than a locked one that forces a penalty. A specialized account you never fund does nothing either—more than half of HSA owners in one study hadn’t contributed in a year (JAMA Network Open), a reminder that opening an account is not the same as using it. And the money already sitting in an insured deposit account is already protected up to the applicable limit (CFPB); switching for a marginally higher rate is not always worth the friction. Doing nothing, deliberately, is sometimes the sound call.

How to match an account type to your goal

There is no universal right answer, so the useful move is not “which account is best” but “which questions sort the options.” A few factors do most of the sorting.

First, when will you need the money? For cash you might need at any moment, accessibility and deposit insurance matter more than rate—a traditional or high-yield savings account or a money market account keeps the money reachable (CFPB). For money you’re confident you can leave untouched, a term account like a CD trades access for a fixed rate (CFPB).

Second, is the money for a specific tax-favored purpose? Medical costs point toward the HSA rules, and education costs toward 529 or Coverdell rules—but each carries eligibility conditions and limits that have to be met (IRS). Third, is the reserve an emergency fund? If so, liquidity usually wins over yield (CFPB). These factors narrow the field; they do not resolve it. Because eligibility, tax treatment, and the right fit depend on circumstances that only you and a qualified professional can see, sizing and selecting an account is a conversation worth having with someone who can consider your full situation.

What research can and cannot tell you

Several sections above lean on studies—on commitment accounts, prize-linked savings, HSA usage, mental accounting, tax-time saving, and emergency-fund adequacy. It is worth being plain about what that research does and does not do.

These studies describe patterns across groups of people. When a study finds that higher penalties increased allocations to a commitment account, or that only 49 percent of families hold three months of expenses in liquid assets, it is reporting an association or a population statistic—not a determination about you. A population finding cannot tell you what to save, which account to open, or whether a given technique will work in your life. It can widen your sense of what is possible and common. Your own numbers, goals, and constraints—the things a study never sees—are what turn general information into a decision, ideally with a qualified professional.

Frequently asked questions

What is the difference between a savings account and a money market account? Both are deposit accounts insured up to $250,000 per owner at an insured institution. A money market account tends to pay higher interest than other savings accounts but usually limits transactions by check, debit card, or electronic transfer, while allowing unlimited withdrawals by ATM, in person, mail, or telephone (CFPB).

Are savings accounts FDIC insured? Deposits at an insured bank are covered by the FDIC, and accounts at insured credit unions are covered by the NCUA. If you have less than $250,000 in a checking or savings account at an insured institution, you’ll get all your money back if it fails (CFPB).

What is APY, and why does it matter? APY, the annual percentage yield, measures the total interest paid on an account based on the interest rate and how often interest compounds (CFPB). Because it includes compounding, APY lets you compare accounts on equal terms.

Is the money in a brokerage cash sweep FDIC insured? It depends where the cash is swept. Cash swept into a bank deposit account generally is eligible for FDIC insurance up to applicable limits; cash swept into a money market mutual fund generally is not FDIC-insured but may be eligible for SIPC coverage (SEC).

Can I still only make six transfers a month from savings? In 2020 the Federal Reserve deleted the six-per-month limit on convenient transfers from the savings-deposit definition, allowing institutions to permit unlimited transfers (Federal Reserve). But individual banks may still set their own limits, so check your account terms.

Key terms

  • Annual percentage yield (APY) — A measure of the total interest paid on an account based on the interest rate and the frequency of compounding (CFPB).
  • Compound interest — Interest earned on both the money you’ve saved and on the interest you’ve already earned (CFPB).
  • Certificate of deposit (CD) — A savings account holding money for a set term, with a penalty for early withdrawal (CFPB).
  • Share certificate — A credit union term account comparable to a bank CD, earning a dividend at a specified rate (NCUA).
  • Money market account (MMA) — A deposit account, insured up to $250,000 per owner, that often pays higher interest but limits certain transactions (CFPB).
  • Money market mutual fund — An investment fund holding short-term securities; not a deposit account and not FDIC-insured (FDIC).
  • Health savings account (HSA) — A tax-exempt account for qualified medical expenses, available to eligible individuals with a high deductible health plan (IRS).
  • 529 plan (qualified tuition program) — A program for prepaying or saving toward a student’s qualified education expenses, with tax-free earnings inside the account (IRS).
  • Coverdell ESA — A trust or custodial account for qualified education expenses, capped at $2,000 in contributions per beneficiary per year (IRS).
  • Mental accounting — The cognitive operations people use to organize, evaluate, and track financial activities (Journal of Behavioral Decision Making).

References

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Board of Governors of the Federal Reserve System. (2020). Federal Reserve Board announces interim final rule to delete the six-per-month limit on convenient transfers from the “savings deposit” definition in Regulation D. https://www.federalreserve.gov/newsevents/pressreleases/bcreg20200424a.htm

Consumer Financial Protection Bureau. (n.d.). An essential guide to building an emergency fund. https://www.consumerfinance.gov/an-essential-guide-to-building-an-emergency-fund/

Consumer Financial Protection Bureau. (n.d.). Appendix A to Part 1030—Annual percentage yield calculation. https://www.consumerfinance.gov/rules-policy/regulations/1030/A/

Consumer Financial Protection Bureau. (n.d.). How does compound interest work? https://www.consumerfinance.gov/ask-cfpb/how-does-compound-interest-work-en-1683/

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Consumer Financial Protection Bureau. (n.d.). Your money, your goals: Finding a place for savings. https://files.consumerfinance.gov/f/documents/cfpb_your-money-your-goals_place-for-savings_tool.pdf

Consumer Financial Protection Bureau. (2025). Consumer Financial Protection Bureau v. Capital One, N.A. and Capital One Financial Corporation. https://files.consumerfinance.gov/f/documents/cfpb_capital-one_complaint_2025-01.pdf

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Federal Deposit Insurance Corporation. (2001). FDIC Consumer News: A depositor’s guide to accounts and services. https://archive.fdic.gov/view/fdic/6635/fdic_6635_DS1.pdf

Internal Revenue Service. (n.d.). Topic no. 403, Interest received. https://www.irs.gov/taxtopics/tc403

Internal Revenue Service. (2025). Publication 969: Health savings accounts and other tax-favored health plans. https://www.irs.gov/publications/p969

Internal Revenue Service. (2025). Publication 970: Tax benefits for education. https://www.irs.gov/publications/p970

National Credit Union Administration. (n.d.). How your accounts are federally insured. https://ncua.gov/files/publications/guides-manuals/NCUAHowYourAcctInsured.pdf

National Credit Union Administration. (n.d.). Share certificates (Examiner’s Guide — Share Types). https://publishedguides.ncua.gov/examiner/Content/ExaminersGuide/Shares/ShareTypes/Certificates.htm

National Credit Union Administration. (n.d.). Share insurance coverage. https://ncua.gov/consumers/share-insurance-coverage

Sherraden, M. S., et al. (2015). Material hardship and 529 college savings plan participation: The mitigating effects of Child Development Accounts. Social Science Research. https://pubmed.ncbi.nlm.nih.gov/25592930/

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TreasuryDirect. (n.d.). Savings bonds overview. https://www.treasurydirect.gov/savings-bonds/

TreasuryDirect. (n.d.). Series EE savings bonds. https://www.treasurydirect.gov/savings-bonds/ee-bonds/

TreasuryDirect. (n.d.). Series I savings bonds. https://www.treasurydirect.gov/savings-bonds/i-bonds/

U.S. Department of Labor. (2024). Pension-linked emergency savings accounts (PLESAs): Frequently asked questions. https://www.dol.gov/agencies/ebsa/about-ebsa/our-activities/resource-center/faqs/pension-linked-emergency-savings-accounts

U.S. Securities and Exchange Commission. (2024). Money market funds: Investor bulletin. https://www.investor.gov/introduction-investing/general-resources/news-alerts/alerts-bulletins/investor-bulletins/updated-12

U.S. Securities and Exchange Commission. (2025). Cash sweep programs — uninvested cash in your investment accounts: Investor bulletin. https://www.investor.gov/introduction-investing/general-resources/news-alerts/alerts-bulletins/investor-bulletins/cash-sweep-programs-uninvested-cash-your-investment-accounts-investor-bulletin