Can the FDIC fail? In any practical sense, no. Since it began operating in 1933, no depositor has lost a penny of insured funds, and the structure behind that promise runs far deeper than the cash the agency happens to be holding at any given moment.1FDIC.gov. Understanding Deposit Insurance For insured depositors to actually lose money, the United States government would essentially have to become insolvent.
That’s a strong claim, so it’s worth walking through what actually stands behind your deposits, what has happened when the system was pushed hard, and where the guarantee stops.
The Four Layers Standing Behind Insured Deposits
The FDIC’s ability to pay depositors doesn’t rest on a single pot of money. It rests on four layers, each one available if the one before it isn’t enough.
The Deposit Insurance Fund
The first layer is the Deposit Insurance Fund itself, built from premiums paid by every insured bank and savings institution. As of the second quarter of 2025, the fund held roughly $145.3 billion, with a reserve ratio of 1.36 percent of insured deposits. The FDIC does not run on taxpayer money or annual appropriations; it runs on industry assessments.2FDIC.gov. What We Do
Federal law requires the reserve ratio to stay at or above 1.35 percent of estimated insured deposits. When it drops below that floor, the FDIC has 90 days to adopt a formal restoration plan, which typically raises assessment rates on member banks over several years until the fund is rebuilt.3Office of the Law Revision Counsel. 12 USC 1817 – Assessments
The Power to Raise Fees on Banks
If the fund is drained faster than routine premiums can refill it, the FDIC can impose special one-time assessments on the banking industry. Surviving banks are legally required to pay whatever adjusted rates the board sets. This is how the agency kept operating in 2008 when the fund balance actually went negative: it collected higher premiums from banks that were still standing.
A $100 Billion Credit Line at the Treasury
Behind bank assessments sits a permanent line of credit. The FDIC can borrow up to $100 billion directly from the U.S. Treasury, with a repayment schedule and market-rate interest, funded over time from future assessment income. During the 2008 crisis, Congress temporarily raised that cap to $500 billion through the end of 2010; the temporary authority has since expired, but Congress could authorize another increase if a future crisis demanded it.4Office of the Law Revision Counsel. 12 USC 1824 – Borrowing Authority
This layer matters because it separates the FDIC’s ability to pay depositors from the current balance of the fund. Even a fully drained fund does not stop payments.
The Full Faith and Credit of the United States
Behind all of that sits the strongest guarantee in American finance. The FDIC’s own materials state that the Deposit Insurance Fund is backed by the full faith and credit of the United States government.1FDIC.gov. Understanding Deposit Insurance That’s the same backing that stands behind U.S. Treasury bonds. It means the federal government’s taxing power stands behind every dollar of insured deposits.
Credit union deposits sit under a parallel arrangement: the National Credit Union Share Insurance Fund, administered by the NCUA, also carries the full faith and credit of the United States and insures deposits up to $250,000 per member per ownership category.5National Credit Union Administration. Share Insurance Coverage
What Happened When the System Was Actually Tested
The layered structure isn’t theoretical. It has been tested twice in recent memory.
In 2008, dozens of banks failed in rapid succession and the fund balance went negative. The FDIC never stopped paying depositors. It kept operating by collecting higher future premiums from surviving banks and eventually rebuilt the fund.
The more recent test came in March 2023, when Silicon Valley Bank and Signature Bank collapsed within days of each other. Both held large volumes of uninsured deposits, and regulators feared runs at other banks. On March 12, 2023, the Secretary of the Treasury invoked the systemic risk exception after receiving two-thirds supermajority recommendations from both the FDIC board and the Federal Reserve Board of Governors.6Federal Register. Special Assessment Pursuant to Systemic Risk Determination That let the FDIC protect all depositors at both banks, not only those under the $250,000 limit.
Protecting the uninsured depositors cost the fund an estimated $16.7 billion.7FDIC.gov. Special Assessment Pursuant to Systemic Risk Determination To recover it, the FDIC imposed a special assessment on larger banks, collected in quarterly installments. The eighth collection occurred in the first quarter of 2026 at a rate of 2.97 basis points, and the agency retained authority to add a one-time shortfall assessment with 45 days’ notice if the total collected falls short of final losses.8Federal Register. Special Assessment Collection
The reserve ratio dipped below the 1.35 percent statutory floor after those failures and has since recovered above it. The FDIC projects it will continue rising ahead of the statutory restoration deadline of September 30, 2028.9FDIC.gov. FDIC Board of Directors Releases Semiannual Update on Deposit Insurance Fund Restoration Plan
What both episodes show is the same pattern. The fund took a serious hit. Insured depositors were paid without interruption. The industry, not taxpayers, refilled the pot.
Where the Guarantee Stops: Deposits Over $250,000
The question “can the FDIC fail” is often really the question “can I lose my money at an FDIC-insured bank.” Those aren’t the same. Standard coverage is $250,000 per depositor, per bank, per ownership category.1FDIC.gov. Understanding Deposit Insurance Anything above that limit is not guaranteed unless the systemic risk exception is invoked, and that exception has a high legal bar: two-thirds supermajority votes from both the FDIC and Federal Reserve boards, plus a determination by the Secretary of the Treasury, after consulting the President, that following normal rules would cause serious harm to economic conditions or financial stability.10FDIC. Systemic Risk Exception Recommendation Memorandum
Without that exception, uninsured depositors become creditors of the failed bank’s receivership. By law they are paid after insured depositors but before general creditors and stockholders.11FDIC.gov. Priority of Payments and Timing Recovery depends on what the FDIC gets from selling the failed bank’s assets, paid out proportionally, sometimes over months or years. In some failures uninsured depositors recover most of their money. In others they take significant losses.
If you hold more than $250,000 in deposits, spreading funds across multiple banks or across different ownership categories at the same bank is the straightforward way to stay fully covered.
The Realistic Worst Case
A simultaneous collapse of many large banks could drain the Deposit Insurance Fund again. It has happened before. What it did not do, and what the structure is designed to prevent, is stop payments to insured depositors. The fund balance is the first line of defense. Behind it sit higher assessments on surviving banks, a $100 billion Treasury credit line, and ultimately the government’s full faith and credit.
A crisis large enough to defeat all four layers would require the U.S. government to lose its ability to borrow and tax. At that point, the solvency of the FDIC would be the least of anyone’s problems. Short of that scenario, the ninety-plus-year record of zero losses to insured depositors reflects a system built with enough redundancy that no single catastrophe can break it.