Keeping Cash Safe When a Banking Partner Fails

Many popular startup banking products aren't banks themselves; they're technology companies that hold your deposits at one or more partner banks behind the scenes. That arrangement is usually fine, but it adds a step: if the partner bank fails, your claim runs through the fintech's sweep program and the FDIC's resolution process, not straight to you.

Ask directly which bank or banks actually hold your deposits, and whether that's disclosed anywhere you can check on your own rather than having to take support's word for it. If the answer changes without notice, that's worth flagging to whoever owns the banking relationship internally.

FDIC insurance covers deposits up to a per-depositor, per-bank limit, per ownership category, and that limit doesn't move just because your company is large. If you have $5M sitting in a single account at a single bank, only the insured portion is guaranteed; the rest is an unsecured claim against that bank in a failure. Multi-bank sweep programs exist specifically to spread deposits across several partner banks so more of the balance stays under the insured limit at each one.

Check your current coverage rather than assuming it: ask your provider for a breakdown of which bank holds how much of your balance today, not from a marketing page. If you can't get a specific breakdown in writing within a business day, treat that as a signal on its own.

The single biggest lesson from recent regional bank failures is that companies who only found out how concentrated their cash was during the failure had far worse outcomes than ones who'd already split reserves across more than one banking relationship. Waiting until a bank looks shaky to start diversifying usually means moving money during the exact week wire transfers are slowest and everyone else is trying to do the same thing.

A reasonable target is at least two genuinely separate banking relationships for any balance above your immediate operating needs, with neither one holding a share large enough to threaten payroll if it froze for a week. Say your monthly payroll runs $400,000; no single bank relationship should hold so much of your liquid cash that a week-long freeze there would put that payroll run at risk.

If your primary operating account froze tomorrow, you need to know, in writing, which account covers payroll, which vendors get paid from where, and who has the authority to move fast without waiting on a board vote. Companies that survived recent bank runs with the least disruption were the ones who'd already tested this plan, not the ones improvising it during a bank's collapse weekend.

Run a tabletop version of this once a year: pick a random Friday, ask "if this account froze right now, what breaks first," and fix whatever the answer exposes. Write the answer down, not just discuss it, since the person who improvised it in the room might not be the person handling it when it actually happens.

Put these points in writing before an account ever freezes:

• Which account covers payroll if the primary operating account freezes, with the backup account already open and tested.
• Which vendors get paid from which account during a freeze, so critical payments are not improvised under pressure.
• Who has authority to move money quickly without waiting on a board vote, including a named backup for that person.
• A test run of the plan, since companies that had already tested it saw the least disruption during recent bank runs.

Diversification tends to erode quietly. A new fundraise gets wired into whichever account is easiest to set up fast, a vendor integration only works with one specific bank, and eighteen months later you're concentrated again without anyone deciding to be. Review the actual split across banking relationships on the same schedule you review your treasury policy, not only after news of another bank in trouble.

How much cushion you can afford to hold at a slightly lower-yielding, more diversified split instead of chasing the best rate at one bank also comes back to your burn: a leaner burn multiple gives you more room to prioritize safety over yield¹.

A polished app and a well-known brand name tell you nothing about which bank actually holds your deposits or how that bank is doing. Treat the fintech layer and the underlying bank as two separate questions, and research both. A fintech can be a genuinely good product built on a bank that's under stress, and the product experience will not warn you about that on its own.