A depository institution is a financial company that accepts deposits from the public and uses that money to make loans. Under federal law, the term covers banks and savings associations, and credit unions do the same work under a separate regulatory framework.1Office of the Law Revision Counsel. 12 U.S. Code 1813 – Definitions If you have a checking account, a savings account, or a certificate of deposit, you are a customer of one. The status matters because these institutions come with federal deposit insurance and standardized consumer disclosures that other financial companies don’t have to offer.
How the Business Model Works
A depository institution pays you a small amount of interest to hold your money, then lends that money at a higher rate. The spread between the two is its main source of revenue. Your account balance sits on the institution’s books as a liability, because it owes you that money on demand or at maturity. The loans it writes with those pooled deposits are its assets.
This is what makes long-term borrowing possible for ordinary people. Without depository institutions, someone who needed a mortgage would have to find individual lenders willing to tie up their money for fifteen or thirty years. Instead, thousands of short-term deposits get pooled and transformed into longer-term loans, with the institution absorbing the risk in the middle.
The Three Types You’ll Encounter
Commercial Banks
Commercial banks are the largest category by total assets and offer the widest menu of services: personal and business checking, loans of every type, credit cards, wealth management, foreign exchange, and international wires. They are usually organized as stock-owned corporations, so shareholders own the bank and expect a return. National banks receive their charter from the Office of the Comptroller of the Currency; state-chartered banks are licensed by their state banking authority.2Office of the Comptroller of the Currency. About Us
Savings Institutions
Savings institutions include savings and loan associations and savings banks. They historically concentrated on residential mortgage lending, and many still lean heavily toward home loans. A number operate under a mutual ownership structure, meaning the depositors themselves are the legal owners rather than outside shareholders. That structure tends to push the institution toward community-based lending and slower, more conservative growth.
Credit Unions
Credit unions are not-for-profit cooperatives owned and run by their members.3National Credit Union Administration. Not-for-Profit and Tax-Exempt Status of Federal Credit Unions Federal law requires that membership be limited to people who share a common bond, which can take one of three forms: a single occupational or associational group, multiple groups each with their own occupational or associational bond, or a well-defined local community or neighborhood.4GovInfo. 12 U.S. Code 1759 – Membership Because there are no shareholders demanding profits, credit unions can often pay higher rates on deposits and charge lower rates on loans than commercial banks. Federal tax-exempt status supports that pricing.5Internal Revenue Service. Other Tax-Exempt Organizations
How This Differs From Non-Depository Financial Companies
The defining feature is right in the name: a depository institution accepts deposits. Non-depository financial institutions extend credit or provide other services but do not take deposits from the public. Mortgage companies, payday lenders, insurance companies, and brokerage firms all fit here. They may lend money, but they fund those loans through capital markets, insurance premiums, or investor money instead of customer deposits.
The distinction has real consequences. Depository institutions carry mandatory federal deposit insurance and sit under a more intensive regulatory regime. Money you put into a non-depository firm’s investment product typically has no government insurance backstop if that firm fails.
Where Neobanks Fit In
Digital-only financial apps have muddied this picture. Most neobanks are not themselves depository institutions. They are technology companies that provide the app and the interface, while a traditional chartered bank behind the scenes actually holds your money and provides the banking infrastructure. Any deposit insurance you have flows through that partner bank, not the app.
A small number of fintechs have obtained their own bank charters and operate as full depository institutions. The vast majority have not. Before depositing money through any digital financial app, confirm which FDIC-insured or NCUA-insured institution actually holds your funds. The FDIC has taken enforcement action against companies that misrepresented their insurance status to consumers.6Federal Deposit Insurance Corporation. Financial Products That Are Not Insured by the FDIC
What Deposit Insurance Actually Covers
At FDIC-insured banks, standard coverage is $250,000 per depositor, per insured bank, for each ownership category. A single person with a checking account, a savings account, and a CD at the same bank is covered up to $250,000 across all three combined. But if that same person also has a joint account or a trust account at the same bank, each ownership category gets its own separate $250,000 limit.7Federal Deposit Insurance Corporation. Deposit Insurance FAQs
Credit unions insured through the NCUA provide equivalent protection. The National Credit Union Share Insurance Fund covers individual accounts up to $250,000, joint accounts up to $250,000 per member’s interest, and IRA and Keogh retirement accounts up to $250,000 separately.8National Credit Union Administration. Share Insurance Coverage
Several products sold at an insured bank are not protected by deposit insurance, even though you bought them there:
- Stocks, bonds, and mutual funds
- Crypto assets
- Annuities and life insurance policies
- Municipal securities
- Contents of safe deposit boxes
U.S. Treasury securities are also not FDIC-insured, though they carry their own backing from the full faith and credit of the federal government.6Federal Deposit Insurance Corporation. Financial Products That Are Not Insured by the FDIC
Disclosures You’re Entitled To
Federal law requires depository institutions to give you clear, standardized information about your accounts. Regulation DD, which implements the Truth in Savings Act, requires disclosure of the interest rate, annual percentage yield, fees, and other key terms for every deposit account. You are entitled to receive these disclosures when an account is opened, whenever the terms change, with each periodic statement, and upon request.9Federal Reserve. Regulation DD Truth in Savings
Standardization is the point. Every institution has to use the same annual percentage yield formula, which reflects total interest paid based on the interest rate and compounding frequency over a 365-day period. Institutions must also disclose aggregate overdraft and returned-item fees on periodic statements, so you can see what those services cost you over time.9Federal Reserve. Regulation DD Truth in Savings