How to adopt an effective cash management strategy for your startup

CFO at Mercury.
What you need to know
- Startup cash management is the practice of preserving, protecting, and growing your company's capital by balancing liquidity (i.e., your access to cash), risk (i.e., your exposure to loss), and yield (i.e., your returns on idle funds).
- Split your cash into liquid (FDIC-insured operating cash), short-term (excess cash stored in government-backed securities), and strategic (long-term capital in diversified investments) buckets.
- While early-stage companies typically keep 6-12 months of burn liquid and limit short-term savings to near-dated Treasuries, growth-stage companies often operate with 3–6 months of liquid cash and deploy larger balances into laddered Treasuries and money market funds (MMFs).
- Safe instruments for each liquidity type: Liquid: FDIC-insured checking with sweep networks; Short-term: U.S. Treasury bills and government money market funds; Strategic: laddered Treasuries, agency securities, and diversified mutual funds.
Jump to: Why it matters · Key considerations for startup cash management · Strategies
Cash flows in and out of your business every day. Handling these inflows and outflows, along with your cash balance at any point in time, is called cash management. But to do it well goes beyond just the daily administration of capital to meet short-term obligations. Strong cash management requires a careful financial strategy that scales alongside your company and strikes a balance between earning, storing, spending, and investing for continued growth. A good cash management strategy is also an important part of ensuring that your startup’s money is well-protected and adequately insured.
Why is cash management important for startups?
You’ve heard it before: Cash is the lifeblood of your business. That makes proactive cash management a critical component of business health, one that ensures your startup’s sustainability by preserving, protecting, and growing capital.
A good cash management strategy matters in any environment, but it can be especially crucial during periods of macroeconomic uncertainty that may precipitate inflation and interest rate fluctuations. When interest rates are low, an effective cash management strategy can mean monitoring cash flow trends and optimizing the use of working capital so that you require less cash to actually operate your business. When interest rates are high, it can mean making sure your cash is working harder for you and earning meaningful yield.
And in any climate, a sound cash management strategy helps make sure that your money is held in the safest place — or places — possible, and allocated in a way that reduces your exposure to unforeseen risk, such as in the case of a bank failure. Diversifying your cash across different accounts — much as you would diversify your assets when investing — can help safeguard your funds by eliminating the risk of encountering a single point of failure.
As you mull over what cash management approach makes the most sense for your startup in any given climate, your best bet is to think carefully about:
- How well-insured, diversified, and protected your funds are.
- When you might need access to cash in order to meet your obligations.
- How you want to invest your money so that you can earn the safest yield.
Key considerations for startup cash management
Raising money for your startup is no easy feat — and poor cash management, or a total lack of cash management strategy, can leave your hard-earned (or hard-raised) cash in a risky position. Rather than operate without a plan in place, you want to manage each dollar responsibly and make it go further. Mastering this requires striking a dynamic balance between three main factors: liquidity, risk, and yield.
Let’s take a look at each of these.
Factor and definition | Ask yourself | Recommended instruments and time horizon | How to decide |
|---|---|---|---|
Liquidity: How quickly you can access cash without losing value | "Can I cover payroll and vendors for the next 6 months without selling anything?" |
| For cash flow forecasts under 6 months, keep it liquid |
Risk: The chance of losing principal or access to your cash | "What happens to this money if my bank, broker, or issuer fails?" |
| Cap any single third-party (bank or issuer) at your insured limit, plus what you can afford to lose |
Yield: The return your cash earns while it sits | "Am I being paid enough to justify tying this cash up — and for how long?" |
| Only extend maturity when you have high-confidence forecasts beyond that maturity date |
Insurance and protections to safeguard your cash and securities
- FDIC deposit insurance covers deposits at insured banks up to $250,000 per depositor, per insured bank, and per ownership category if the bank fails.
- SIPC protection covers up to $500,000 (including a $250,000 cash limit) of securities and cash held at a SIPC-member brokerage if that broker-dealer fails. However, SIPC does not protect against fluctuations in the market.
- SEC Customer Protection Rule (Rule 15c3-3) requires broker-dealers to segregate customer securities and cash from the firm's own assets, so customer property is protected in the event of the broker-dealer's failure.
What you should remember: FDIC insurance protects your bank deposits against bank failure; SIPC and Rule 15c3-3 protect your brokerage holdings against broker-dealer failure. Neither protects against investment losses from market movements or issuer default.
Cash management strategies for startups
Depending on your company’s stage, the balance between liquidity, risk, and yield may look different. For example, if you’re an early-stage company, you might start with a simple strategy of using sub-accounts to store cash and manage expenses. On the other hand, if your company has reached a high-growth stage, you might opt for a more mature cash management solution, such as an automated treasury account.
As you determine which approach makes the most sense for protecting and growing your startup’s cash, it helps to have the following three categories of cash inform your strategy:
- Liquid: This is your cash for the next 3–6 months (payroll, rent, vendor payments) held in FDIC-insured checking accounts using sweep networks that extend coverage across partner banks; anything you won't touch for more than 6 months belongs elsewhere, and when your liquid balance exceeds 6 months of burn by more than 25%, consider moving the surplus to short-term instruments.
- Short-term: This applies to any cash above your liquid reserve that you'll need within 3–12 months, held in U.S. Treasury bills, government money market funds, and short-duration Treasury ladders; keep anything needed within 30 days liquid and anything earmarked for 2+ years in strategic, and reassess your spending projections before reinvesting as your short-term securities mature. Only consider extending maturities when your forecast confidence has grown.
- Strategic: This is your excess capital beyond 12 months of forecasted needs — typically relevant for well-capitalized Series B+ companies — deployed into laddered Treasuries across 1–3 year maturities, agency securities, or diversified mutual funds structured to match your long-horizon forecast; exclude any capital tied to known near-term obligations, and revisit quarterly alongside your runway and fundraising planning.
How two different companies could manage their cash
Company A is an early-stage startup with $500k total cash, burning ~$50k/month.
Cash type | Amount | Instrument | Maturity |
|---|---|---|---|
Liquid | $300k | FDIC-insured checking with sweep network | On-demand |
Short-term | $200k | T-bill ladder: $100k at 3 mo., $100k at 6 mo. | 3–6 months |
Strategic | $0 | N/A — runway too short to commit | — |
In this scenario, 6 months of burn ($300k) stays liquid, while the remaining $200k earns yield on near-dated T-bills that mature in time to fund their operations in months 7–10.
Company B is a growth-stage startup with $5M total cash, burning ~$300k/month.
Cash type | Amount | Instrument | Maturity |
|---|---|---|---|
Liquid | $1.8M | FDIC-insured checking with sweep network (6 months burn) | On-demand |
Short-term | $2.2M | T-bill / MMF ladder: $700k at 3 mo., $750k at 6 mo., $750k at 9 mo. | 3–9 months |
Strategic | $1.0M | Treasury ladder: $500k at 12 mo., $500k at 18 mo. | 12–18 months |
For a larger, growth-stage company, 6 months of liquid cash covers operating needs, while the short-term ladder produces quarterly maturities to replenish the “liquid” bucket as needed, and your strategic capital earns a higher yield that won't be needed for a year or more.
Here are a few effective strategies you can apply to your own cash management playbook:
1. Calculate how many months of operating expenses you need to keep readily accessible.
Part of maintaining healthy liquidity — and properly allocating funds into the three categories mentioned above — is making sure you have enough cash available to meet your ongoing obligations, such as your operating costs. This begins with forecasting your cash flows and needs over the next 12–15 months by understanding your revenue outlook and expected expenses.
Having a strong budgeting and spend control process can increase your likelihood of sticking to your forecasts and help you catch things before they veer you off course. Keep in mind that because the goal of runway forecasting is to inform real-world cash management decisions, it pays to be realistic as opposed to aspirational. This helps ensure that you don’t find yourself in a tight position if things don’t go according to plan.
Truthfully, most companies need more margin for error in case something unexpected arises. In those cases, roughly six months of burn is recommended. The important thing is to make sure you’re always taking your company’s working capital needs into consideration. For example, if the turnaround for getting paid by your clients can interfere with your deadlines for paying upfront costs like inventory, plan to have more operating funds available so that you don’t have to wait for your customers to pay up.
2. Open multiple checking accounts or sub-accounts for different designated purposes.
As a company grows, so does the number of functions it executes. With higher volumes and an expanding team, incoming and outgoing payments begin branching off into operations/payroll, accounts receivable, and accounts payable. Increasingly, it may make more sense to silo these activities into different buckets rather than try to command them from a single checking account. Although it seems contradictory, this separation can give you a more complete picture of your overall spending and ensure that you don’t overspend in any one area. It also gives you the visibility necessary to make accurate cash flow projections, which is important for planning around liquidity needs.
To separate your cash flows, you can either open sub-accounts under your existing checking account or — if your bank or banking partner offers the option, like in the case of Mercury accounts — you can open multiple business checking accounts. It could be as simple as separating your incoming and outgoing payments, or as sophisticated as creating different accounts for rent, office expenses, and employee spending. You can even arrange joint accounts to co-manage with your business partners.
Armed with the right approach to organization, you’ll be able to match your various sources of funding to your capital flows, allowing you to monitor your cash flow in real time, maintain a healthier bottom line, and even get a head start on setting aside money for your taxes.
3. Put your idle cash to work with automated treasury management.
For most companies, your cash position will change daily, meaning it can be tough to constantly stay on top of when you should or shouldn’t invest your cash. On the one hand, not taking action could mean leaving excess idle cash in accounts that don’t earn yield for you. On the other, defaulting to a strategy that calls on you to take frequent manual actions could mean making emotional decisions rather than carefully considered ones.
If you truly want to make your money work for you, find something you can just set and forget so that you have more time to build and run your company. For this, a treasury management account may be your top horse. Unlike a savings account, where you’re setting aside cash reserves that you don’t expect to make returns on, the purpose of a treasury account is to help you earn yield on your idle cash by investing it in money market funds. These are mutual funds that include securities that offer high liquidity, short-term maturity, and low risk, such as U.S. Treasury bills.
In particular, you’ll want to look for a treasury account with a trustworthy provider that offers competitive yield, high liquidity, and low fees while still keeping your cash safe in conservative funds. Money market funds are a notably safe option because they offer minimal risk and mature within a short period of time. In the case of Mercury Treasury, for example, we offer access to a J.P. Morgan Asset Management money market fund that is 99.5% invested in cash, U.S. Treasury securities and/or repurchase agreements and held 100% in the customer’s name.
In addition to selecting a treasury solution that balances yield, liquidity, and risk, you should also ideally look for a solution that allows you to schedule auto-transfers and create rules to automate more of the money movements between different accounts, with the ability to top off funds when needed.
Keep in mind: An important aspect of treasury management goes back to having a strong handle on your runway projections. By understanding how much cash you’ll require over time, you can ladder maturities according to when you need to access that cash.
Say you currently have $5M in cash today. Based on your burn rate, you need $1M to cover burn for the next three months, $2M for the three months afterward, and another $1M for the three months after that. You’d want to invest $2M in short-term securities that’ll mature in three months’ time and $1M in securities that’ll mature in six months’ time. That way, you can earn yield on those amounts you don’t need immediate access to, but they’ll be available when you expect to need them.
Again, you’ll typically earn a higher yield for longer maturities, but you don’t want to over-allocate to long-term maturities if you don’t have strong certainty in your forecasts. Having to sell before securities mature subjects you to market price fluctuations — even traditionally stable securities, like U.S. treasuries, can see meaningful volatility in certain market environments. The best way to shield yourself from volatility is to minimize frequent buying and selling.
4. Avoid chasing higher yields through high-risk investments.
It may be tempting to seek out non-traditional cash vehicles that promise high yields, but as the saying goes, there’s no such thing as a free lunch. If you’re dead set on chasing higher returns at all costs, it's important to acknowledge the risk that you — and by extension, your company and investors — would be taking on as a result.
A good example of this is cryptocurrency. While traditional bank and brokerage accounts are usually FDIC- or SIPC-insured so that some portion of your money is protected in a broker default, high-yield crypto accounts are often completely uninsured. This means that if any of the crypto company’s institutional investors fail or go bankrupt, you could suffer serious losses as a result. Additionally, cryptocurrencies make poor savings accounts because they suffer from high price volatility, fluctuating in accordance with market conditions. In that regard, they can expose you to unnecessary potential losses that will be difficult to explain to your own investors, lenders, and employees.
Accessing your cash can also be its own headache — rather than allowing you the freedom to withdraw your money and close your account at your choosing, some “crypto savings accounts” impose withdrawal limits and restrictions that could jeopardize your liquidity in an emergency. They may also charge fees for withdrawals, which can add up if you have a high transfer volume. Ultimately, your risk is your own, so it’s up to you to do your research and understand what’s at stake.
Common pitfalls and red flags
Pitfall | Why it's risky | What you can do to mitigate |
|---|---|---|
Holding your cash at one bank | Balances above $250k at one bank are uninsured if that bank fails. | Use a banking partner with sweep networks, or spread deposits across multiple insured institutions. |
Your instruments have maturities that don’t align with your actual cash needs | Selling securities early because you need the cash can expose you to market price swings. | Build a maturity ladder that aligns cash availability with forecasted spending. |
Relying on your team to manually transfer funds | Manual money movement can lead to missed yield on uninvested cash or unnecessary risk exposure | Automate sweeps, top-offs, and transfers between operating and treasury accounts. |
Chasing higher yields that may be too risky for your cash management strategy | Non-traditional vehicles (including crypto products) often lack FDIC or SIPC coverage and carry hidden liquidity restrictions. | Benchmark any high-yield option against government MMFs and T-bills before committing. |
Unclear insurance status | Funds held without FDIC-insurance or SIPC-protection can mean a real loss of capital if the institution gets into trouble. | Confirm in writing which protections apply to each account before funding it. |
From leveraging a banking approach that maximizes FDIC insurance on your funds, to investing idle cash in a secure money market fund through an automated treasury account like Mercury Treasury, a sound cash management strategy ensures that your startup’s money is well-protected, adequately insured, and thoughtfully allocated.
To learn more about how Mercury helps startups of all sizes and stages manage bank risk and protect more of their cash, discover Mercury Vault.
About the author
CFO at Mercury.
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