What Is the FDIC and What Does FDIC Deposit Insurance Cover?
The Federal Deposit Insurance Corporation, known as the FDIC, is the independent federal agency that insures deposits at banks and savings associations. The FDIC states that its mission is to maintain stability and public confidence in the nation's financial system. It describes itself as an independent agency of the federal government that was established in 1933 in response to the thousands of bank failures of the preceding decades.
For a securities student, the FDIC matters for a practical reason. Customers often hold cash at a bank and investments at a brokerage firm, and the protections that apply to each are different. A bank deposit can be FDIC insured. A stock, a bond or a mutual fund bought through a bank or a broker is not a deposit, and the FDIC's own consumer materials say deposit insurance does not cover those investments. This entry explains what the FDIC does, how its deposit insurance works, what it covers and does not cover, how it differs from SIPC protection, and how the two fit together when cash sits in a brokerage account.
What the FDIC Does
The FDIC's description of its work lists three main activities. The first is deposit insurance. The FDIC states that the standard insurance amount is two hundred and fifty thousand dollars per depositor, per insured bank, for each account ownership category. The second is supervision and examination. The FDIC states that it directly supervises and examines banks and savings associations for safety and soundness. The third is the handling of failures. The FDIC states that when an institution fails, it responds immediately and typically sells the deposits and loans of the failed institution to another institution.
The FDIC also describes how it is funded. It states that it receives no Congressional appropriations and is funded by assessments that banks and savings associations pay for deposit insurance coverage. The practical meaning is that the cost of the insurance system is carried by the institutions that are insured, and not by an annual appropriation from Congress.
How Deposit Insurance Works
The core rule is the standard insurance amount: two hundred and fifty thousand dollars per depositor, per FDIC-insured bank, for each account ownership category. Each of the three phrases limits the coverage in a different way.
Per depositor means that coverage is calculated for each person who owns the deposits. Per insured bank means that the limit applies separately at each FDIC-insured bank, so deposits at two different insured banks are insured separately. For each account ownership category means that the same person can have separate coverage in different categories, because the categories are treated separately.
The FDIC lists seven ownership categories: single accounts, joint accounts, certain retirement accounts, trust accounts, employee benefit plan accounts, corporation, partnership and unincorporated association accounts, and government accounts. For single accounts the FDIC states the limit is two hundred and fifty thousand dollars per owner, for joint accounts it is two hundred and fifty thousand dollars per co-owner, and for retirement accounts it is two hundred and fifty thousand dollars per owner. The FDIC explains that trust accounts are calculated by multiplying the number of owners, the number of distinct beneficiaries and the standard amount, subject to a maximum of one million two hundred and fifty thousand dollars per owner for all trust accounts as of April 1, 2024. The rules for each category have conditions, and a reader with a specific account should use the FDIC's own tools and guidance.
The FDIC states that deposit insurance covers deposits in all types of accounts at FDIC-insured banks, and it advises people to make sure their bank is FDIC-insured by using its BankFind Suite search tool. The insurance is automatic. A person does not purchase it separately, and if the person opens an account at an FDIC-insured bank, the account is covered.
The FDIC also states that since it was founded in 1933, no depositor has lost a penny of FDIC-insured funds. The statement is about insured funds. It does not say that amounts above the insurance limit are protected.
What Is Covered
The FDIC lists the types of deposits that are protected. They are checking accounts, savings accounts, money market deposit accounts, and time deposits such as certificates of deposit.
The phrase money market deposit account deserves attention, because it sounds like a money market fund. They are not the same thing. A money market deposit account is a bank deposit and appears on the FDIC's list of covered deposits. A money market fund is an investment company product, and it is not on that list.
What Is Not Covered
The FDIC's materials list products that deposit insurance does not cover. They include stock investments, bond investments, mutual funds, annuities, life insurance policies, crypto assets, United States Treasury bills, bonds or notes, and municipal securities. Another FDIC page adds safe deposit boxes and their contents.
The list is useful because it shows how deposit insurance is built. The FDIC insures deposits. It does not insure investments, even when the investment is bought through a bank or when the investment is itself safe in the ordinary sense of the word. The FDIC's list includes Treasury bills, bonds and notes, which are backed by the United States government but are not deposits at an insured bank, so the FDIC does not insure them.
An Illustration
An illustration shows the limit at work. Suppose a depositor has three hundred thousand dollars in a single account at one FDIC-insured bank, and no other accounts at that bank in the same ownership category. Under the standard rule, two hundred and fifty thousand dollars of the deposit would be within the insurance limit and fifty thousand dollars would be above it. If the same depositor instead kept one hundred and fifty thousand dollars at each of two different FDIC-insured banks, each amount would be within the limit at its own bank, because the limit applies per insured bank. This illustration is simplified and does not describe any actual account. Interest, joint ownership and other accounts at the same bank can change the result, and a depositor should check the FDIC's guidance for the actual figures.
The FDIC and SIPC Compared
Securities students most often meet the FDIC next to SIPC, and the two are easy to confuse. FINRA states that SIPC coverage should not be confused with FDIC protection, and that the FDIC insures assets in bank accounts in the event of a bank's failure.
SIPC protects customer securities and related cash held by a SIPC-member brokerage firm. Investor.gov states that protected securities include stocks, Treasuries, bonds, CDs, options on securities, and investment company shares such as mutual funds, exchange-traded funds and money market funds. It states that SIPC protection advances funds of up to five hundred thousand dollars per customer, including a limit of two hundred and fifty thousand dollars for cash claims.
The two kinds of protection answer different failures. The FDIC insures deposits if a bank fails. SIPC applies when a brokerage firm fails and customer assets are missing. FINRA states that SIPC coverage applies when a firm closes due to financial hardship and customer assets are missing or at risk, and that SIPC does not protect against ordinary market loss. Investor.gov likewise states that SIPC does not protect against the decline in value of securities, against losses due to a broker's bad investment advice, or against assets held outside of a SIPC-member brokerage firm.
The comparison can be put in two sentences. A deposit at an FDIC-insured bank is protected by the FDIC if the bank fails, up to the limit. A security held at a SIPC-member brokerage firm is protected by SIPC if the firm fails and the assets are missing, up to its limit. Neither protects an investor against the loss in value of an investment that results from market movements.
Where the Two Meet: Cash Sweep Programs
Cash in a brokerage account is where a student can see both protections in one place. The SEC's investor bulletin on cash sweep programs describes them as services that investment firms offer to manage uninvested cash in client accounts. It describes three main types. In money market fund sweeps, cash is automatically transferred to one or more money market funds. In bank sweeps, cash is moved into a deposit account at one or more banks that may or may not be affiliated with the investment firm. In free credit balances, cash simply remains on deposit at the investment firm.
The bulletin states that bank sweep programs provide FDIC insurance up to the two hundred and fifty thousand dollar limit per customer at each FDIC-insured bank. It states that money market funds and free credit balances may be protected by SIPC. The SIPC bulletin explains the reason for the difference: cash in bank sweep programs is held outside the brokerage firm, where SIPC would not protect it, and it receives FDIC coverage instead.
The SEC's bulletin also gives a caution. It states that bank sweep programs also often pay less interest than money market fund sweep programs and encourages investors to compare rates against outside accounts. A reader should find out which sweep option applies to an account, because the protections differ.
Bank Failures
The FDIC's description of how it handles a failed institution is short. It states that it responds immediately and typically sells the deposits and loans of the failed institution to another institution. The FDIC's description does not give a timetable, and a reader should not assume how quickly access is restored in a particular failure.
The FDIC Compared With Other Regulators
The FDIC is one of several agencies in the financial system, and each has a different focus. The FDIC insures deposits and supervises banks and savings associations for safety and soundness. The SEC regulates the securities markets and broker-dealers. FINRA is a self-regulatory organization for broker-dealers. SIPC protects customers when a brokerage firm fails. A bank that also offers investment products falls under more than one of these frameworks, and the protections attach to the product and not to the building where it was bought.
Common Misunderstandings
One misunderstanding is that FDIC insurance covers anything sold by a bank. It covers deposits. The FDIC's own list excludes stock investments, bond investments, mutual funds, annuities, life insurance policies and crypto assets.
A second misunderstanding is that the FDIC insures Treasury securities. The FDIC lists United States Treasury bills, bonds and notes among the products it does not cover.
A third misunderstanding is that a money market deposit account and a money market fund are the same. The first is a bank deposit that the FDIC lists as covered. The second is an investment product, and SIPC lists money market funds among the investment company shares it protects when held at a member brokerage firm.
A fourth misunderstanding is that FDIC insurance and SIPC protection are interchangeable. FINRA states that they should not be confused. The FDIC insures deposits if a bank fails, and SIPC addresses missing customer assets if a brokerage firm fails.
A fifth misunderstanding is that SIPC or the FDIC protects against investment losses. SIPC does not protect against the decline in value of securities, and the FDIC's insurance concerns deposits and not investments.
A sixth misunderstanding is that the two hundred and fifty thousand dollar limit is a total for the person. The FDIC states that it applies per depositor, per insured bank, for each account ownership category.
A seventh misunderstanding is that a person must apply or pay for deposit insurance. The FDIC states that it is automatic when an account is opened at an FDIC-insured bank, and that banks pay assessments to fund it.
Key Points
The FDIC is the independent federal agency that insures deposits and supervises and examines banks and savings associations. It was established in 1933 and is funded by assessments paid by banks and savings associations and not by Congressional appropriations.
The standard insurance amount is two hundred and fifty thousand dollars per depositor, per insured bank, for each account ownership category. It covers checking accounts, savings accounts, money market deposit accounts and time deposits such as certificates of deposit, and it applies automatically.
It does not cover stocks, bonds, mutual funds, annuities, life insurance policies, crypto assets, Treasury bills, bonds or notes, or municipal securities.
SIPC addresses a different failure. It protects customer securities and related cash at a SIPC-member brokerage firm, up to five hundred thousand dollars including two hundred and fifty thousand dollars for cash, and does not protect against market loss. In a brokerage account, cash in a bank sweep program receives FDIC coverage, while other cash and securities may be protected by SIPC.

