Cash Flow and the Cash Flow Statement: What It Is and How to Calculate It

"I had a P&L. I had a bank balance. And I had no idea why one said I was profitable and the other said I had no money. The cash flow statement is the page that explains the difference."

A founder of a ₴12M services business described the moment she stopped pretending to understand cash flow. She had a P&L showing ₴1.8M annual profit. She had a bank balance of ₴240K. The accountant was telling her the year was successful. Her body was telling her something was off because she'd taken out a personal loan three months earlier to cover a payroll gap.

She asked her accountant to "show me where the profit went." He sent her a one-page document she'd seen before but never really read: the cash flow statement. Twenty minutes with him going through it line by line, and she understood the year for the first time.

The profit was real. Most of it was tied up in receivables (clients hadn't paid yet), inventory (working capital), and one piece of equipment she'd bought outright. The accountant hadn't been hiding anything. The information had been on a page she'd been ignoring because nobody had explained what it was for.

This article is the explanation. The cash flow statement is not a duplicate of the P&L. It is the document that translates the P&L's "profit" into the bank account's "balance" — and it is the single most useful report a small business owner can learn to read.

What Cash Flow Actually Is

Cash flow is the movement of cash in and out of the business over a period of time. It is not the same as profit, and it is not the same as revenue. Profit can be high while cash flow is negative. Revenue can be growing while cash flow is shrinking. Both have happened to most growing businesses at least once.

There are three reasons cash flow and profit diverge:

• Timing. A sale recorded as revenue this month may not be paid for another 30, 60, or 90 days. The profit is on this month's P&L. The cash is not in this month's bank account.
• Working capital changes. Inventory bought but not sold ties up cash. Receivables outstanding tie up cash. Payables outstanding free up cash. None of these movements appear on the P&L, but all of them appear on the bank balance.
• Non-operating cash flows. Buying equipment, taking out a loan, paying back a loan, distributing profits to the owner — all of these change the bank balance, but none of them are operating profit or loss.

The cash flow statement is the document that accounts for all three sources of divergence in a structured, readable way.

The Three Sections of a Cash Flow Statement

The cash flow statement always has the same three sections, in the same order, on every business in the world. Learning to read it once means being able to read it everywhere.

Section one — Cash from operating activities. This is the cash actually generated (or consumed) by running the business day to day. Money received from clients. Money paid to suppliers. Salaries. Taxes. Rent. Operating expenses. This is the most important section for most owners, because it is the single best indicator of whether the core business is healthy on a cash basis.

Section two — Cash from investing activities. This is the cash spent on or received from long-term assets. Buying a piece of equipment. Selling a vehicle. Acquiring software with a multi-year license. Investing in another business. For most small businesses, this section is small and infrequent. When it's large, it usually means a major decision happened that should be visible.

Section three — Cash from financing activities. This is cash from sources other than operations or investments. Taking out a loan. Repaying a loan. The owner injecting money into the business. The owner taking dividends or draws. For small businesses, this section is where owner-business cash mixing usually appears, and it's the section that explains "where did the profit go if it's not in the bank?"

The three sections sum to the net change in cash for the period. That net change, added to the beginning bank balance, equals the ending bank balance. The cash flow statement is the bridge between the P&L (which shows operating profit) and the bank statement (which shows the actual cash position).

How to Calculate Each Section (Direct vs Indirect Method)

There are two methods for building the operating section. Investors prefer one. Small business owners are better served by the other. Both arrive at the same number.

Indirect method. Start with net profit from the P&L. Add back non-cash expenses (depreciation, amortization). Adjust for changes in working capital (increase in receivables = subtract; increase in payables = add; increase in inventory = subtract). The result is operating cash flow. This is the method most accountants prepare by default because it's auditor-friendly and connects directly to the P&L.

Direct method. List actual cash received from clients. Subtract actual cash paid to suppliers, employees, the tax office, and for operating expenses. The result is operating cash flow. This is more useful for small business owners because it reads like a bank statement and the numbers correspond to things you can recognize.

For the founder in the opening example, switching from indirect to direct in her monthly statement was the single change that made cash flow intuitive. She could see, on one page, that ₴8.6M had come in from clients and ₴7.3M had gone out to suppliers, salaries, and taxes — operating cash flow of ₴1.3M. Then she could see ₴480K spent on equipment (investing) and a ₴560K loan repayment (financing). Net change in cash: ₴260K. Beginning balance ₴480K, ending balance ₴740K. Reconciled, transparent, intuitive. The indirect method is technically correct and audit-ready. The direct method is owner-friendly and decision-ready. Most accounting software can produce both. Ask for the direct format if you're the one reading the statement.

What the Cash Flow Statement Actually Tells You

Once you can read it, the cash flow statement answers questions that no other report can. Is the core business generating cash? Operating section, top number. If it's negative for more than a quarter or two, the business is consuming cash to operate — which only works if the financing or investing sections are bringing cash in, and that's not sustainable.

Where did the profit go? Compare net profit from the P&L to net change in cash from the statement. If profit is significantly higher than cash growth, look at working capital (probably receivables tied up) and financing (probably loan repayment or owner draws).

Was a big purchase the right call? Investing section. The cash impact of a major asset purchase is visible separately from operating performance, so it doesn't make the year look worse than it was.

How dependent am I on external financing? Financing section. If financing is regularly positive (you're regularly borrowing or contributing cash), the core business isn't self-sustaining yet.

Is this year better than last year operationally? Compare operating cash flow year over year. This is a cleaner comparison than profit because it strips out non-cash and non-operating effects.

For a small business owner, reviewing the cash flow statement once a month — for thirty minutes, with the bookkeeper if needed — converts a confusing document into a navigation instrument. Most owners who do this for three months stop asking "where did the profit go?" — because they now have a page that answers it.

📌 Want to see your cash flow statement built automatically from your bank and operations data — direct method, three sections, monthly reconciled? Book a 20-minute Finmap demo. [Book a Finmap demo →]

Read also

• Cash Flow Gap: How to Identify It and How to Prevent It
• How to Read a P&L Report — And Why Most Owners Miss the Real Signal
• The Friday Question: Which Supplier Gets Paid This Week?