Suppose you sell a house and park $600,000 in a single savings account while you figure out what comes next. The FDIC sticker on the bank’s door feels like a blanket guarantee. It is not. If that one bank failed, $250,000 of that money would be fully insured, and the rest would depend on how the accounts were titled.
Deposit insurance is one of the most dependable promises in American finance. Since the FDIC was created in 1933, no depositor has lost a penny of FDIC-insured funds. But the promise has precise edges, and the people most likely to bump into them are savers with large balances, retirees consolidating accounts, and anyone who bought an investment product at a bank and assumed it was covered. Here is where the protection starts and stops.
The basic promise
The rule fits on an index card: deposits are insured up to $250,000 per depositor, per FDIC-insured bank, for each account ownership category. The insurance is automatic when you open a deposit account at an insured bank. There is no form to file and nothing to buy, and the fund behind it is backed by the full faith and credit of the United States government.
Every part of that sentence carries weight. “Per depositor” means each person, not each account. “Per bank” means spreading money across different insured banks multiplies coverage. And “per ownership category” is the piece most people have never heard of, which we will get to below.
What counts as a deposit
FDIC insurance covers money in checking accounts, savings accounts, money market deposit accounts, and time deposits such as certificates of deposit, along with NOW accounts and official items a bank issues, like cashier’s checks and money orders. The full list is on the FDIC’s deposit insurance page.
The pattern is simple: if it is money the bank is holding for you as a deposit, it is covered. Interest that has been credited to the account counts too, up to the limit.
What is never covered
The boundary that surprises people is this one: coverage follows the product, not the building. Buy a mutual fund, stocks, bonds, an annuity, or a life insurance policy through your bank, and none of it is FDIC-insured, even though you signed the papers under the same roof as your insured checking account. The same goes for municipal securities, crypto assets, and the contents of a safe deposit box.
U.S. Treasury bills, notes, and bonds are not FDIC-insured either. They carry the federal government’s own separate backing, so they are hardly risky, but they are not deposits.
One more edge case: money held at a nonbank financial technology app is not FDIC-insured while the app holds it. Insurance can apply only if and when the money actually lands in a deposit account at an insured bank, so it is worth knowing where a fintech app says it keeps customer funds.
How coverage multiplies: ownership categories
The $250,000 limit applies separately to each ownership category you hold at a bank. The main categories are single accounts, joint accounts, certain retirement accounts such as IRAs, trust accounts, business accounts, and government accounts.
This is how careful savers keep far more than $250,000 fully insured at one bank. Take a married couple. Each spouse can have a single account insured to $250,000. Their joint account is insured separately, at $250,000 per co-owner, which is another $500,000. That is $1 million of coverage at one institution before anyone touches an IRA, which sits in its own retirement category with its own $250,000 limit. Deposits held in trust accounts are insured per eligible beneficiary, which can raise the ceiling further for people who have named beneficiaries on payable-on-death accounts.
The couple from the opening paragraph could fix their problem in an afternoon: retitle the account jointly, or move part of the balance to a second insured bank.
Check your own numbers in minutes
You do not have to guess how the categories apply to you. The FDIC’s Electronic Deposit Insurance Estimator (EDIE) lets you enter your actual accounts and shows exactly what is insured and what is over the line. To confirm a bank is insured in the first place, look it up in the FDIC’s BankFind tool; do not rely on a logo on a website.
Credit unions have the same deal under a different name
Credit unions are not FDIC-insured, and that is fine. Federally insured credit unions carry equivalent coverage from the National Credit Union Administration’s Share Insurance Fund: $250,000 per member, per credit union, per ownership category, also backed by the full faith and credit of the U.S. government. The NCUA explains the rules and offers its own coverage calculator on its share insurance page.
The bottom line
For most households, deposit insurance quietly does its job and never needs a thought. The exceptions are predictable: a windfall sitting in one account, an investment product wearing a bank’s logo, or cash parked in an app that is not a bank. Ten minutes with EDIE covers all three. The guarantee is real, but it protects exactly what the rules say it protects, and not a dollar more.
This article was produced with AI assistance and reviewed by a human editor. Figures are linked to their primary sources; where a claim could not be verified from the public record, we say so.
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