Are Business Checking Accounts
FDIC Insured? The 2026 Rules
Yes, with conditions. The $250,000 per-depositor cap, the ownership-category rules that separate (or aggregate) business and personal funds, and how sweep networks extend coverage to $5 million per legal entity.
The one-paragraph answer
Yes. A business checking account at an FDIC-member bank is insured up to $250,000 per insured bank, per ownership category, per 12 CFR Part 330. Funds owned by a corporation, partnership, LLC (taxed as a corporation), or unincorporated association are insured in the corporation/partnership/unincorporated-association ownership category, separately from the owners' personal accounts. Sole proprietorship funds are insured in the single ownership category and aggregate with the owner's personal single accounts at the same bank. Coverage is automatic, no enrollment, and applies to checking, savings, money market deposit accounts, and CDs. It does not apply to money market mutual funds, securities, or balances at non-bank fintechs (which route to FDIC-member partner banks under separate sweep arrangements).
For businesses holding more than $250,000 in operating cash, the practical answer is a sweep network: IntraFi ICS, CDARS, or a fintech that uses one of these. Sweep networks spread deposits across many FDIC-member banks, presenting a single account to the customer while keeping every dollar under the per-bank cap. Most large fintech-style business accounts (Mercury, BlueVine, Relay, Brex) include sweep coverage of $3 million to $5 million automatically.
The ownership category rules (the part most people miss)
FDIC insurance is not "$250,000 per account" or "$250,000 per customer". It is $250,000 per ownership category per insured bank. The ownership categories that matter for business accounts are defined under 12 CFR Part 330 subparts B through I. The most common ones:
- Corporation, partnership, and unincorporated association accounts (12 CFR 330.11). Each separately chartered legal entity gets its own $250,000 cap, separate from the owners and from other entities. A corporation and a partnership at the same bank are two separately insured pools.
- Single accounts (12 CFR 330.6). All single-owner accounts at the same bank aggregate. Sole proprietorship accounts fall here, and aggregate with the proprietor's personal single accounts. This is the trap.
- Joint accounts (12 CFR 330.9). Each co-owner gets $250,000 per insured bank in this category, separate from single accounts. Rarely relevant for business banking but matters when the same person operates a sole proprietorship and a joint personal account.
- Revocable trust accounts (12 CFR 330.10). Each unique beneficiary gets $250,000 in this category up to a maximum of $1.25 million (5 beneficiaries). Relevant for business owners using estate-planning trusts.
- Government accounts (12 CFR 330.15). Municipal and state government deposit accounts. Not relevant for private business.
The FDIC's Electronic Deposit Insurance Estimator (EDIE) walks through ownership-category math for any specific account structure. For business owners with mixed personal and entity deposits at a single bank, running EDIE is the only reliable way to confirm coverage.
The single-member LLC trap
A single-member LLC that has not elected to be taxed as a corporation is a disregarded entity for federal income tax purposes under IRS Treas. Reg. 301.7701-3. The FDIC mirrors that treatment under 12 CFR 330.11(c): the disregarded SMLLC's deposits are insured as the personal funds of the sole member, in the single account category. Practically this means a sole-member LLC owner with $200,000 in a personal checking account at Bank X and $200,000 in the SMLLC checking account at the same Bank X only has $250,000 of the combined $400,000 insured.
The fix is simple and frequently overlooked: file IRS Form 8832 to elect corporate (or S-corp, via Form 2553) taxation, or operate the LLC and personal accounts at different FDIC-member banks. The corporate election moves the LLC into the corporation/partnership/unincorporated-association category and gives it its own $250,000 cap separate from the owner.
Multi-member LLCs are treated as partnerships by default (or as corporations if Form 8832 is filed). Either way they sit in a separate ownership category from the members' personal accounts, so the trap does not apply to multi-member LLCs.
What sweep networks actually do
A deposit sweep network is a service that automatically distributes a customer's deposit across many FDIC-member banks in increments below the $250,000 cap, while presenting the customer with a single statement and account interface. IntraFi (formerly Promontory Interfinancial Network) is the dominant operator, with two products commonly used for business checking: IntraFi Cash Service (ICS) for transaction accounts and CDARS for time deposits.
For a $2 million balance, ICS would split it across at least 9 partner banks (8 at $250,000 plus the originating bank holding the remainder up to $250,000). Each partner bank holds the deposit as its own FDIC-insured liability. If any partner bank fails, the FDIC pays out the insured portion held there; the customer's remaining $1.75 million at the other 8 banks is unaffected. Per FDIC sweep-arrangement guidance, the originating bank must disclose the partner-bank list (or the rule under which partner banks are selected) before deposits are accepted.
Common fintech sweep arrangements: Mercury Vault ($5M via Choice Financial + multiple partner banks), BlueVine ($3M via Coastal Community Bank + IntraFi), Relay ($3M via Thread Bank + IntraFi), Brex Cash ($6M via multi-partner programme). All four route through the bank-deposit version of a sweep, not a money market mutual fund.
Fintech vs bank: who actually holds the deposit?
The 2023 collapse of Synapse, a banking-as-a-service middleware company that sat between fintech apps and partner banks, exposed a structural risk in fintech business accounts. When Synapse failed, customer-facing fintechs lost the ledger reconciliation between what customers saw in their app and what was actually held at each partner bank. The FDIC pays the partner bank's insured liabilities, but if the per-customer allocation cannot be reconstructed from the failed fintech's records, individual customers may face delays or shortfalls. The CFPB and OCC issued joint guidance on this in 2024.
For business checking, the operational implication is to check three things on any fintech-style account before depositing large balances. First, the partner bank disclosure (a one-paragraph statement, usually in the terms, naming the actual FDIC-member institution holding the deposits). Second, the sweep network operator (IntraFi is mature and well-tested; a self-administered sweep is higher risk). Third, the FDIC certificate number of the partner bank, which can be cross-checked on FDIC BankFind to confirm active FDIC membership.
None of this is a reason to avoid fintech business accounts. Mercury, BlueVine, Relay, and Brex all use mature sweep arrangements with established partner banks. It is a reason to read the partner-bank disclosure before depositing significant treasury cash, and to favour fintechs that use IntraFi over those running self-administered sweeps.
What is and is not covered (checklist)
- Checking accounts
- Savings accounts
- Money Market Deposit Accounts (MMDA)
- Certificates of Deposit (CDs)
- Cashier's checks and certified checks
- Accrued but uncredited interest
- NOW accounts
- Money market mutual funds (different product)
- Stocks, bonds, mutual funds, ETFs
- Treasury bills (Treasury Direct or brokered)
- Annuities
- Cryptocurrency or stablecoin balances
- Safe deposit box contents
- Losses from fraud or unauthorised transactions (Reg E covers consumer, not commercial)
If your bank fails, what actually happens
For an insured business depositor, the practical experience of a bank failure is short. The FDIC's preferred resolution is a purchase-and-assumption transaction: another FDIC-member bank assumes the failed bank's deposits and reopens the branches under the new ownership, typically the next business day. Insured deposits transfer intact, and the depositor sees a name change on statements but no interruption of access. The Silicon Valley Bank failure on 10 March 2023 followed this pattern (assumed by First Citizens BancShares on 27 March 2023).
For uninsured deposits (balances above the per-ownership-category cap that are not in a sweep network), the FDIC issues a Receiver's Certificate for the uninsured portion and pays dividends as the failed bank's assets are liquidated, typically over several years. The SVB and Signature Bank failures in March 2023 were resolved under the systemic-risk exception that fully insured all deposits, but the FDIC has not committed to using this exception for future failures and generally treats it as exceptional.
The Federal Reserve's Federal Reserve Act Section 13(3) emergency lending authority and the FDIC's resolution authorities under Title II of Dodd-Frank are the broader policy tools, but for a business depositor the operative rule is: if the deposit is insured, the funds are available within one business day; if uninsured and not in a sweep network, recovery is partial and slow. Sweep network membership is the cheapest and easiest mitigation.
BSA and Reg E: related rules that are not FDIC insurance
FDIC insurance is sometimes confused with two adjacent banking rules. The Bank Secrecy Act (BSA) and FinCEN's beneficial ownership rule under the Corporate Transparency Act require businesses to report ownership information to FinCEN and require banks to collect that information during account opening. This is regulatory compliance, not deposit protection. The FinCEN BOI reporting deadlines for businesses formed after 1 January 2024 are 30 days from formation.
Regulation E (12 CFR Part 1005), which provides consumer protection for unauthorised electronic funds transfers, does not apply to commercial accounts. Business checking accounts are governed by Article 4A of the Uniform Commercial Code instead, which puts substantially more responsibility on the business to detect fraud quickly (often within 24 hours of statement availability). Bank fraud loss on a business account is not covered by FDIC insurance and is generally not recoverable from the bank unless the business can demonstrate the bank failed to follow commercially reasonable security procedures.
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Frequently Asked Questions
Are business checking accounts FDIC insured?
Yes, business checking accounts at FDIC-member banks are insured by the Federal Deposit Insurance Corporation, but with important nuances. Under 12 CFR Part 330, deposits owned by a corporation, partnership, or unincorporated association are insured up to $250,000 per insured bank, per ownership category. A sole proprietorship is treated as personal funds of the owner, so the proprietorship balance is aggregated with the owner's personal single accounts at the same bank for the $250,000 limit. Coverage is automatic, no enrollment is required.
Is the FDIC limit for business accounts the same as for personal accounts?
The dollar amount is the same, $250,000 per insured bank per ownership category. The distinction is in ownership category. Business deposits owned by a separate legal entity (corporation, LLC, partnership) have their own $250,000 cap, distinct from the personal accounts of the owners. A single-member LLC that has not elected corporate taxation is treated as the personal funds of the owner for FDIC purposes under 12 CFR 330.11, so its accounts aggregate with the owner's other single accounts.
Can a business have more than $250,000 in FDIC coverage at one bank?
Yes, in three ways. First, by maintaining accounts in multiple distinct ownership categories (for example, a corporation, a separate partnership, and a different LLC at the same bank each get a $250,000 cap). Second, by using a deposit sweep network such as IntraFi ICS or CDARS, which automatically spreads deposits across many FDIC-member banks while presenting a single account to the customer. Third, by opening accounts at different FDIC-member banks. Sweep networks are the most common solution for treasury balances of $250,000 to $5 million.
Are sole proprietorship accounts insured separately from the owner's personal accounts?
No. The FDIC treats sole proprietorship accounts as the personal funds of the owner. They are aggregated with the owner's other single ownership accounts at the same bank toward the $250,000 cap. This is per FDIC General Counsel Opinion No. 8 and 12 CFR 330.11. If a sole proprietor has $200,000 personal savings at Bank X and $200,000 in a sole proprietorship checking account at the same Bank X, only $250,000 of the combined $400,000 is FDIC-insured.
What is NOT covered by FDIC insurance on a business account?
FDIC insurance covers deposit products only. Money market mutual funds, securities, brokerage accounts, treasury bills held in a brokerage sub-account, cryptocurrency, and balances at non-bank fintechs that are not directly FDIC-member institutions are not insured. Fintechs like Brex Cash, Mercury Treasury, and similar yield products route balances to FDIC-member partner banks under sweep arrangements, in which case the underlying bank deposits are insured but the fintech itself is not. Always check the partner-bank disclosure.
Does FDIC insurance pay accrued interest?
Yes. FDIC insurance covers the principal plus accrued interest up to the date of the bank's failure, subject to the $250,000 per-ownership-category cap. Per 12 CFR 330.3, accrued but uncredited interest counts toward the insured balance.
What about overnight sweep into a money market fund?
A daily sweep from a business checking account into a money market mutual fund (a common arrangement at brokerages and some commercial banks) moves the cash out of the FDIC-insured deposit and into a securities product. The money market fund itself is not FDIC-insured; it may be SIPC-protected for custody risk but not for value. If the FDIC insurance is important to the business, an IntraFi-style insured cash sweep (ICS) into FDIC-member partner-bank deposits is the correct structure, not a money market fund sweep.