Profitable on Paper, Short on Cash: Why Profit and Cash Flow Tell Different Stories

If every customer stopped paying tomorrow, how long could your business keep paying its bills? For the typical U.S. small business, the answer in 2025 was about 17.6 days. That is the median "cash buffer" across roughly 2.1 million small businesses analyzed by the JPMorgan Chase Institute.^[1] A business can report a healthy profit and still be sitting on a buffer that thin. That is the puzzle this article is about: how a company can make money and still run short of it.

Two different questions

Profit and cash flow are often used interchangeably, but they answer different questions.

• Profit asks: over a given period, did the business earn more than it cost to earn it?
• Cash flow asks: did more money actually arrive in the bank than left it, and will there be enough on hand when bills come due?

The gap between them is mostly about timing, and it is not a niche problem. In the Federal Reserve Banks' 2024 Small Business Credit Survey, 51% of small employer firms reported uneven cash flow as a financial challenge in the prior 12 months, and 56% reported difficulty paying operating expenses. Among firms that faced financial challenges, 51% dipped into the owner's personal funds and 48% drew down cash reserves in response.^[2]

Why the two numbers drift apart

The starting point is the accounting method. Under the accrual method, income is generally recorded when it is earned and expenses when they are incurred, regardless of when money changes hands. Under the cash method, income is recorded when it is received and expenses when they are paid.^[3] Most growing businesses that report on an accrual basis will see profit and cash diverge for several recurring reasons:

• Receivables. A sale invoiced on 60-day terms counts toward profit today but adds nothing to the bank balance for two months.
• Inventory. Cash spent on stock sits on the shelf as an asset; it does not show up as an expense until the goods are sold.
• Equipment and other long-lived assets. A large purchase leaves the bank account at once but is typically expensed gradually through depreciation.
• Debt principal. Loan repayments reduce cash, but only the interest portion is an expense on the income statement.
• Owner distributions and taxes. Money taken out by owners and tax payments that come due on their own schedule can drain cash in months when profit looks steady.

A worked example: three profitable months, one cash problem

Consider a hypothetical services firm that starts the quarter with $80,000 in the bank. Each month it completes a $100,000 project and invoices the client on 60-day terms. Each project costs $70,000 in payroll and materials, paid in the month the work is done. For simplicity, the example ignores taxes, financing, and other expenses.

On paper, the quarter was a success: $90,000 of profit on a 30% margin. In the bank, the business needed $110,000 more than it collected, and it would have had to cover the February and March shortfalls with a credit line, owner funds, or late payments to suppliers. Nothing about the work was unprofitable. The problem was entirely timing, and it gets larger, not smaller, as the business wins more work on the same terms.

The reverse is also true

A rising bank balance does not necessarily mean a business has become more profitable. Loan proceeds, customer deposits for work not yet delivered, the sale of equipment, or simply delaying payments to vendors can all lift cash without improving the underlying economics. Several of those sources also create obligations that will need to be paid back later. Reading cash flow alongside the income statement shows where the money actually came from.

Three measures that make the gap visible

Cash buffer days

Divide the average cash balance by average daily cash outflows. The result estimates how many days the business could keep operating if inflows stopped. This is the measure behind the JPMorgan Chase Institute figure above. In the Institute's earlier, smaller study, the median varied widely by industry, from 16 days for restaurants to 47 for real estate businesses.^[4] There is no single "right" number; what matters is whether the buffer fits the business's own payment cycles and risks.

Days sales outstanding (DSO)

Divide accounts receivable by revenue for a period, then multiply by the number of days in that period. DSO estimates how long, on average, it takes to turn a sale into cash. A rising DSO often signals a cash squeeze before it shows up in the bank balance.

A rolling cash forecast

A weekly forecast of expected receipts and payments, commonly built over a 13-week (one-quarter) horizon, shows when shortfalls are likely before they arrive. Its value comes from updating it regularly and comparing it with what actually happened, so the assumptions improve over time.

Questions to ask of your own numbers

1. When are customer payments actually expected, and how reliable have those dates been historically?
2. Which large payments (payroll, rent, taxes, loan installments) fall due in the next 90 days?
3. How much cash is tied up in receivables and inventory right now, and is that amount growing faster than sales?
4. If the business wins a large new contract on its usual terms, how much cash would it need to carry the work until payment arrives?
5. What assumptions sit behind the current forecast, and when were they last checked against reality?

For owners who want to build these skills themselves, the FDIC and the U.S. Small Business Administration publish a free Money Smart for Small Business module on managing cash flow, including worksheets for building projections.^[5]

Key takeaways

• Profit measures whether the business earns money; cash flow measures whether it has money when it needs it.
• Receivables, inventory, equipment purchases, loan principal, and owner distributions are the most common reasons the two diverge.
• Growth can widen the gap: more profitable work on slow payment terms can consume more cash, not less.
• Tracking cash buffer days, DSO, and a rolling forecast makes timing problems visible before they become urgent.

About the author

David Montegari, CFA, is a fractional CFO based in New York. He began his career as a derivatives trader, then spent 15 years in corporate finance. He is a CFA® charterholder and holds an MBA from New York University and an undergraduate degree from Johns Hopkins University. Learn more about David or get in touch.

Sources

1. JPMorgan Chase Institute. "Denver Small Business Snapshot." May 27, 2026. Nationwide median of 17.6 cash buffer days in 2025, based on about 2.1 million small businesses with Chase Business Banking accounts. jpmorganchase.com
2. Federal Reserve Banks. "2025 Report on Employer Firms: Findings from the 2024 Small Business Credit Survey." March 2025. Survey of 7,653 small employer firms fielded September–November 2024. doi.org/10.55350/sbcs-20250327
3. Internal Revenue Service. "Publication 538: Accounting Periods and Methods." irs.gov/publications/p538
4. JPMorgan Chase Institute. "Cash Is King: Flows, Balances, and Buffer Days — Evidence from 600,000 Small Businesses." September 2016. jpmorganchase.com
5. FDIC and U.S. Small Business Administration. "Money Smart for Small Business, Module 10: Managing Cash Flow." fdic.gov

Disclosure: This article is for general educational purposes only. It is not accounting, tax, legal, or investment advice, and it does not create an advisory relationship. The example above is hypothetical and simplified for illustration; it does not represent any actual client or result. Every business's circumstances differ; consult qualified professionals before making financial decisions. Statistics are cited from the sources listed as of their publication dates and may have been updated since.