What Is an FBO Account? Customer Funds in Custody

An FBO account, or For Benefit Of account, is a custodial account at a bank where a third party holds customer funds on behalf of beneficiaries. Fintech platforms use FBO accounts to pool customer deposits at FDIC-insured banks without becoming banks themselves. This structure allows payment and stablecoin platforms to offer customer fund safety while avoiding the cost and complexity of a banking charter.

How FBO Accounts Work

The structure is straightforward. Your fintech company maintains an FBO account at an FDIC-insured bank. Individual customers' funds flow into this account, but the bank's records clearly indicate that the money belongs to the beneficiaries, not to the fintech company.

The fintech acts as the custodian and administrator. It holds the legal title to the funds and manages all transactions. But from the bank's perspective and from a regulatory standpoint, the money is held for the benefit of the actual owners.

This distinction matters. It allows fintech platforms to operate payment features without holding banking licenses. Users can deposit money, move it around, and withdraw it. The platform handles the operational work while the bank provides the actual account and FDIC protection.

FDIC Insurance Coverage

The reason fintech companies use FBO accounts is FDIC deposit insurance. Regular bank deposits are insured up to $250,000 per depositor per institution. But if a fintech pools customer funds in a single account in its own name, each customer loses deposit protection.

FBO accounts enable pass-through insurance coverage. Each beneficial owner gets their own $250,000 insurance limit, even though all funds sit in one account at the bank. This is called FDIC pass-through deposit insurance.

Three conditions must be met for pass-through insurance to apply:

• The custodian must have actual ownership of the account
• The bank's records must clearly indicate the custodial nature of the account
• The beneficial owners must be identifiable in the bank's records

When a fintech uses an FBO account properly, each customer is insured separately. A user with $200,000 on a payment platform using a properly structured FBO account has full FDIC protection.

The Synapse Collapse: When Things Go Wrong

FBO accounts look safe on paper. The reality proved messier. In April 2024, Synapse, a cloud-based payment processor, suddenly shut down. Synapse operated an FBO account at Evolve Bank and Trust, holding funds for nearly 100,000 customers across multiple fintech platforms.

When Synapse failed, the connection between customers and their funds broke. The bank still had the money, but the platforms that customers used had lost access to the FBO account. No one could withdraw their funds. Approximately $85 million in customer money went untraced. Another $265 million was frozen.

It took weeks for customers to get clarity. Some eventually recovered their funds. Some didn't. The incident exposed a critical risk: even if the bank stays solvent and the money is physically safe, customers lose access if the intermediary fails.

Regulatory Response

The Synapse collapse prompted regulatory action. On June 14, 2024, the Federal Reserve announced enforcement action against Evolve Bank, citing failures in oversight of the FBO account structure. The Fed demanded improved controls and governance.

In October 2024, the FDIC proposed new rules for FBO accounts. The proposal requires daily reconciliation between the custodian's records and the bank's records. It also mandates standardized record-keeping formats so that beneficial ownership is always transparent and verifiable.

These rules aren't final yet, but they signal where regulators are headed. Future FBO structures will face stricter operational and record-keeping requirements.

Why Stablecoin Companies Use FBO Accounts

Circle, the issuer of USDC, uses FBO accounts for a portion of its reserves. As of early 2026, FBO accounts at various globally systemically important banks (GSIBs) hold approximately 10-15% of Circle's reserves. The rest are held in the Circle Reserve Fund, a money market fund managed by BlackRock.

For a stablecoin issuer, FBO accounts serve as one custody layer. They provide insurance coverage for individual holder funds and offer a clean audit trail. But relying entirely on FBO accounts creates concentration risk. If the custodian fails or the bank restricts access, the stablecoin loses backing.

This is why major stablecoin issuers use multiple custody approaches. FBO accounts at different banks, direct reserves with asset managers, and cash equivalents reduce any single point of failure.

The Core Risk

The fundamental weakness of FBO accounts is intermediary dependency. You own the money, but you can't access it without the intermediary. If the custodian disappears, becomes insolvent, or gets shut down by regulators, you're locked out. The bank may be solvent and the money may be there, but it's inaccessible.

For payment and stablecoin platforms, this risk is significant. A platform outage is bad. A platform outage combined with inability to access customer funds is catastrophic.

Looking Forward

FBO accounts remain the simplest way for fintech platforms to offer FDIC-insured fund custody without a banking license. But post-Synapse, they come with more regulatory scrutiny and operational burden.

Platforms using FBO structures now need daily reconciliation, documentation of beneficial owners, and clearer governance. This is more work but also more protection for customers.

For stablecoin and payment companies, the lesson is clear: FBO accounts are a tool, not a complete solution. They work best as part of a diversified custody strategy that reduces dependence on any single intermediary.