FDIC deposit insurance up to $250,000 per depositor per insured bank, per ownership category. For chartered banks, cover is direct. For fintechs operating under a partner-bank (BaaS) model, cover is "pass-through" and applies at the partner bank, not at the fintech.
Important. This product is offered through a partner-bank (BaaS) model. Customer deposits are held at Choice Financial Group, N.A. and Evolve Bank & Trust and Patriot Bank, N.A., FDIC-insured to $250,000 per depositor on a pass-through basis. The fintech itself is NOT a chartered bank and is NOT separately FDIC-insured — verify the partner bank's FDIC certificate via BankFind before relying on the cover.
Primary source: https://banks.data.fdic.gov/bankfind-suite/bankfind
A fintech, not a bank
Mercury Technologies, Inc. is not a chartered bank. It is a financial technology company that operates a B2B banking experience for US startups on top of FDIC-insured partner banks: Choice Financial Group, N.A., Evolve Bank & Trust, and Patriot Bank, N.A.. Like Chime, but for B2B and US startups rather than consumers — the same BaaS arrangement, with a different customer profile and a different FDIC mechanic on top.
The IntraFi sweep mechanic
What makes Mercury distinctive on FDIC isn't the partner-bank model — it's the IntraFi sweep layered on top. Customers who opt in have deposits auto-distributed across the IntraFi (formerly CDARS / ICS) deposit network at multiple FDIC-insured partner banks. Each $250,000 bucket sits at a different bank and gets full FDIC coverage in its own right.
Mercury markets this as up to $5M of effective FDIC pass-through at the customer level, achievable via roughly twenty partner allocations. Two pre-conditions apply: (a) the customer must opt in to the sweep program, and (b) the customer must monitor for partner-bank overlap — if you already hold deposits at one of the IntraFi partner banks under your own relationship, those balances aggregate against the $250,000 ceiling for that bank. Verify the current allocation list against your other banking relationships before treating the headline figure as load-bearing.
Post-2023 SVB lessons
Mercury has been transparent about partner-bank diversification since the March 2023 Silicon Valley Bank failure. Customer accounts that previously sat at one or two partner banks are now spread across the IntraFi network for sweep-enrolled customers; this is a deliberate post-SVB risk-management posture, codified in the sweep mechanic. The structural lesson — that operating-cash concentration at a single partner bank is the material risk for venture-funded balances — is the reason the IntraFi layer exists at Mercury at all.
Operational track record
Mercury's status page and support response times are publicly tracked, and the company has been broadly transparent about partner-bank changes through 2024–2026 — including the addition of Patriot Bank to the partner roster and ongoing rotation of IntraFi allocations. The most-discussed compliance event in this window was Evolve Bank & Trust's 2024 ransomware incident, which affected several Evolve-fronted fintechs and prompted regulatory attention to partner-bank security posture; Mercury disclosed exposure and adjusted partner allocations accordingly. None of these events affected FDIC coverage, but they reinforce the operational-fragility tradeoff inherent to multi-party BaaS stacks.
Verdict
Mercury is safe in the FDIC sense for US startups, and the IntraFi sweep is a genuine competitive advantage — not just marketing. For a $1–3M corporate operating-cash balance, the sweep mechanics are functionally superior to a single chartered bank, where a depositor would be limited to $250,000 of FDIC coverage and forced to manage multiple bank relationships manually. The fintech-via-partner-bank model is real and the structural caveats apply (sweep opt-in required, partner-bank overlap aggregates, an extra operational link in the chain), but for the target B2B customer the FDIC posture is materially stronger than the consumer-fintech baseline.
FDIC pass-through coverage is per partner bank, not per fintech. If you hold funds at multiple Chime-style fintechs that share the same partner bank, your $250,000 FDIC limit aggregates across those balances. Crypto holdings, brokerage cash awaiting investment, and overdraft-protection lines are NOT FDIC-insured — verify product type before assuming cover. Reg E provides limited-liability rights for unauthorised electronic-fund transfers when reported within the statutory window.