Entrepreneurship June 4, 2026 0 Comments

Where Are the Top Startup CFOs Parking Idle Cash Right Now to Crush Risk and Boost Returns?

Ever wondered why a startup’s big pile of cash just sits there, twiddling its thumbs, in a checking account while the business world keeps spinning? It’s like having a high-performance sports car idling endlessly in neutral—burning fuel but not really getting you anywhere. That cash, though dormant, is runway in disguise, and letting it lounge around earning next to nothing is more than just a missed opportunity—it’s money down the drain. Now toss in the chaos post-Silicon Valley Bank collapse, and suddenly where you park that cash isn’t just about chasing yield; it’s a critical risk choice that can make or break your startup’s future. So how do you play this high-stakes game smartly? We tapped into the minds of five savvy finance leaders who’ve seen the battlefield up close. Their insights unravel the art of growing companies not just protecting but profiting from their idle cash safely—without turning your startup’s treasury management into a full-time job. Ready to stop leaving money on the table and start putting your funds to work? Let’s dive in. LEARN MORE

Every startup raises money to spend it, but not all at once. Between the funding round and the burn, there is usually a large balance sitting in a checking account doing nothing. With the average business checking account paying close to nothing and money market funds and Treasuries yielding far more, that idle cash represents a real lost runway. The challenge is earning a return without locking up money you might need next month, and without taking on risk that puts the principal in danger.

After the collapse of Silicon Valley Bank, that second concern became urgent. Startups learned that where you keep your cash is a risk decision, not just a yield decision. We asked five finance leaders how growing companies should think about parking idle cash safely.

1. Start with the tradeoff: safety, liquidity, then yield, in that order.

The single most important principle is sequencing. Preservation of principal comes first, liquidity second, and yield only after those two are handled. Founders who chase the highest rate first tend to learn this lesson the hard way. The practical version of this for most startups is keeping enough cash to cover several months of operations fully liquid, then putting the rest into low-risk instruments like government money market funds or a Treasury bill ladder where maturity dates are staggered so cash frees up in line with company milestones. Anything offering meaningfully higher yield than a Treasury money market fund is also carrying meaningfully more risk. There is no free lunch.

– Benjamin Döpfner, Founder and CEO, Vesto

2. Diversify where the cash sits, not just what it sits in.

The lesson startups took from Silicon Valley Bank was about concentration. It is not enough to pick the right instrument; you also have to spread cash across more than one institution, because the failure scenario is the bank itself, not the market. The companies that came through that period in good shape were the ones that had already spread deposits across multiple banks and kept a meaningful portion in short-term Treasury bills rather than sitting on account. Earlier-stage companies often think this kind of diversification discipline is not worth the time, until a crisis proves otherwise.

— Bill Hunter, President and CEO, Canary Medical

3. Look for same-hour access, not just same-day.

For startups, the trap with earning yield is that the moment you move cash somewhere productive, you lose fast access to it. That tension is the whole game. Most providers route trades through third parties, which means settlement happens once a day or less, so "liquid" cash can still take until tomorrow to reach you. The thing to look for is how fast you can actually get your money back when an unplanned expense lands, because a high yield is worth little if the cash is stranded for a day when you need it. Brex built its business account around exactly this. It states its direct treasury integration lets it trade throughout the day and offer same-hour liquidity rather than next-day, and it spreads deposits across more than 20 program banks for up to $6 million in FDIC protection. For a startup that wants its reserve earning yield but reachable on short notice, that is the combination to look for.

— Erik Zhou, Chief Accounting Officer, Brex

4. The best treasury setup is one you don't have to manage.

For a small team without a dedicated treasury function, the real cost of earning yield is the manual work. Getting the best rate traditionally means logging into multiple bank portals, modeling upcoming payments in a spreadsheet, and moving money between accounts by hand every week to make sure bills still get covered. That overhead is why a lot of idle cash never gets put to work at all. The setup worth wanting is one where the system knows how much operating cash you need for upcoming bills and leaves only the rest to keep earning, so optimizing your cash is not another job on someone's plate. Ramp's approach is to build this into the spending workflow it already runs. Because it sees all company spend, it calculates how much cash is needed for upcoming bills and card payments and leaves the remainder earning in an FDIC-insured account or a government money market fund.

— Eric Glyman, CEO and Co-founder, Ramp

5. Match the structure to your runway, and don't over-engineer it early.

The right setup scales with how much cash you have and how long it needs to last. A company with under a year of runway does not need a complicated structure; a high-yield sweep account connected to the operating bank, or an all-in-one platform, is usually the most efficient starting point. Companies sitting on a large balance after a sizable round can justify a tiered structure: a few weeks of burn in checking, a reserve in a money market fund, and strategic cash in a Treasury ladder that matures over the next couple of years. The mistake in both directions is the same, which is letting the cash sit in checking earning nothing because the setup felt like too much trouble.

— Alex Wu, Founder, CFO Advisors

The Bottom Line

Idle cash sitting in a checking account is lost runway, and in the current rate environment the gap between doing nothing and doing something is measured in months of extended runway. The job is to earn a return without giving up the safety of your principal or fast access to your money. The order matters: keep enough cash fully liquid to cover several months of operations, spread the rest across more than one institution so the bank itself is not a single point of failure, and put the remainder into low-risk instruments like government money market funds or a Treasury bill ladder.

For the portion you want earning yield without building a treasury operation from scratch, platforms like Brex and Ramp are built for this exact problem, with Brex leaning into fast liquidity and broad FDIC protection and Ramp automating cash management alongside the spending it already tracks. The biggest mistake is the simplest one, which is leaving the money in checking earning nothing because optimizing it felt like too much work.

This article describes how growing companies approach treasury decisions and is not financial or investment advice; readers should consult a qualified advisor for guidance specific to their situation

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