How much cash should your business actually keep?

ARTICLE | October 01, 2026

Most business owners know they need cash reserves. The harder question is how much.

Rules of thumb like “three to six months of expenses” can be useful as a starting point, but they are too simplified for many established businesses. Two companies with the same revenue can have very different liquidity needs depending on their margins, customer mix, debt, seasonality, growth plans, and access to capital.

A better way to think about cash is to separate your bank balance into the different jobs that money needs to do. 

Start with the operating floor

Every business needs a minimum level of cash to operate without creating unnecessary stress. That floor should reflect the obligations that continue even when revenue slows. Payroll, rent, debt service, insurance, software, and other fixed commitments all matter.

The operating floor is not just a multiple of monthly expenses. Timing matters too. If your customers generally pay within ten days, you may need less liquidity than a company that routinely waits 60 or 90 days. A seasonal business may need to build cash for months before its busiest period. If you carry inventory, cash may leave the business well before the related sale occurs.

Your cash target should reflect how money actually moves through your business, not just what appears on the income statement.

Separate cash on hand from cash that is already committed

A large bank balance can create a false sense of flexibility if some of that cash already has a job.

You may be holding money for quarterly tax payments, bonuses, equipment purchases, debt reduction, expansion, or an upcoming acquisition. Customer deposits can also make the balance look stronger even though you still have an obligation to perform the related work.

That distinction can sound obvious, but it’s easy to look at a healthy bank balance and mentally treat all of it as available. One practical way to avoid that is to track committed cash separately from operating cash. Depending on how you manage the business, that could mean separate bank accounts for certain purposes or simply clearer internal reporting that shows which portion of the balance is already spoken for.

For example, if you have $1 million in the bank but $300,000 is reserved for taxes, equipment, and planned bonuses, your actual flexibility is much lower than the headline balance suggests. Decisions about distributions, hiring, debt repayment, or investment should be based on the cash that is truly available after those commitments are considered.

Build for stress, not just the normal month

Another layer is contingency liquidity. Your reserve should reflect the risks that could disrupt the business, not only what the company normally spends.

If one customer represents a large share of your revenue, you have a different liquidity risk than a company with hundreds of smaller accounts. If you depend heavily on one supplier, an interruption may require you to carry more inventory or source materials at a higher cost. A highly leveraged company also has less room for error because debt payments continue even when revenue falls.

This is where scenario planning becomes more useful than a generic reserve formula. Instead of asking only, “Do we have enough cash?” ask what happens if a major customer pays 30 days late, revenue declines for a quarter, or you have to replace an important piece of equipment unexpectedly.

You don’t need to model every possible crisis. You do need to understand which disruptions would put real pressure on the business and how much liquidity would give you enough time to respond without making rushed decisions.

Treat credit as backup liquidity, not cash

Access to a line of credit can reduce the amount of cash you need to hold, but credit should not be treated as a perfect substitute for cash.

Borrowing capacity can change. Lenders may tighten terms, ask for updated financial information, or become more cautious when the business is already under pressure. The moment when you most want additional borrowing flexibility may also be the moment when a lender is looking more closely at your financial condition.

A strong banking relationship can still be an important part of your liquidity plan. For some companies, the right answer is a combination of cash reserves and unused borrowing capacity rather than simply holding the largest possible cash balance. The important distinction is between liquidity you control directly and liquidity that still depends on someone else extending credit.

Know when cash truly becomes excess

Once your operating needs, upcoming commitments, and contingency reserves are covered, you can begin asking a different question: how much of the remaining cash is actually excess?

That’s where capital allocation becomes relevant. Excess cash could be used to reduce debt, fund growth, make distributions, purchase equipment, acquire another company, or invest outside the operating business. But “excess” should be evaluated with a forward-looking view, not simply based on what is sitting in the account today.

A business may look overcapitalized now but have a major hiring plan, tax obligation, debt maturity, or expansion project coming within the next year. On the other hand, you may continue accumulating cash long after the major risks and planned uses are adequately covered.

Holding too little cash creates fragility. Holding too much can also carry an opportunity cost if capital remains idle when it could be used more productively elsewhere.

Use ranges and triggers instead of one magic number

For an established business, it can be more useful to define a liquidity range than a single target.

You might identify a minimum level that should rarely be crossed, a target level that supports normal operations and expected volatility, and a higher level where you begin evaluating whether some cash can be put to another use.

The value of that framework is not the exact numbers themselves. It’s the decisions attached to them. If cash falls below your minimum, you might pause distributions or discretionary spending. If cash rises materially above your target, that may prompt a discussion about debt reduction, reinvestment, distributions, or other uses of capital.

That gives you a clearer system for managing liquidity instead of reacting to whatever the bank balance happens to be on a given day.

Put cash balance in context

There is no universal answer to how much cash your business should keep. The more useful approach is to understand what each portion of that cash is expected to do.

Start with what you need to operate. Account for money that is already committed. Add enough contingency liquidity to address the risks that could realistically disrupt the business. Then consider how reliable your outside financing would be if conditions changed.

Only after those layers are accounted for can you begin to identify true excess cash and decide whether that capital belongs in the operating business, should be used to reduce obligations, or can be deployed elsewhere.

For many established businesses, this is also where an outside advisor can be helpful. Liquidity does not exist in isolation. Cash decisions often intersect with taxes, debt, owner distributions, growth plans, capital spending, and the broader financial position of both the business and its owners. For more personalized guidance, please contact our office.