The key idea is that net income is calculated using accrual accounting, while the Statement of Cash Flows measures actual cash moving into and out of the business. As a result, profitable companies can still experience declining cash balances.
In your example:
- Net income: +$2.0 million
- Change in cash: –$0.5 million
This means that, after adjusting for non-cash items and investing/financing activities, the company experienced a net cash outflow of $500,000. Two common operating adjustments that can cause this are an increase in Accounts Receivable (A/R) and a decrease in Accounts Payable (A/P).
Why an increase in Accounts Receivable reduces operating cash flow
Suppose your company makes a sale on credit.
At the time of sale:
- Revenue increases.
- Net income increases.
- Cash does not increase because the customer hasn't paid yet.
- Instead, Accounts Receivable increases.
For example:
| Transaction | Income Statement | Cash | Balance Sheet |
|---|
| Credit sale | Revenue +$800,000 | $0 | A/R +$800,000 |
Your net income includes the $800,000 of revenue, but no cash has been collected.
When preparing the operating section of the Statement of Cash Flows (using the indirect method), you remove this non-cash portion of earnings:
Net income
Less: Increase in Accounts Receivable ($800,000)
This adjustment reflects that earnings exceeded cash collections by $800,000.
Economic interpretation:
An increase in A/R means you've effectively loaned money to customers by allowing them to pay later. Until they pay, that cash is unavailable for payroll, suppliers, debt service, or investment.
Why a decrease in Accounts Payable reduces operating cash flow
Accounts Payable represents amounts owed to suppliers.
Suppose you begin the quarter owing suppliers $1.2 million and end the quarter owing only $700,000.
That means:
- Beginning A/P: $1.2 million
- Ending A/P: $700,000
- Decrease in A/P: $500,000
The decrease tells us you paid suppliers $500,000 more than you incurred in new expenses during the period.
Many of those payments may relate to expenses recognized in previous periods.
On the Statement of Cash Flows:
Net income
Less: Decrease in Accounts Payable ($500,000)
This adjustment reflects that cash left the business even though the related expenses may not have reduced current-period net income.
Economic interpretation:
A decrease in A/P means the company is using cash to settle existing obligations rather than delaying payment.
Putting the two together
Suppose your company reports:
- Net income: $2.0 million
- Accounts Receivable increased: $1.1 million
- Accounts Payable decreased: $900,000
The operating section would begin like this:
| Operating Activities | Amount |
|---|
| Net income | $2,000,000 |
| Less: Increase in Accounts Receivable | (1,100,000) |
| Less: Decrease in Accounts Payable | (900,000) |
| Net cash from operations (before other adjustments) | $0 |
Although the company earned $2 million, none of those earnings translated into cash because:
- $1.1 million is still owed by customers.
- $900,000 of cash was used to pay suppliers.
Visualizing the cash flow
Net Income
+$2,000,000
Revenue earned but not yet collected
−$1,100,000 (Increase in A/R)
Cash used to pay existing supplier balances
−$900,000 (Decrease in A/P)
Operating Cash Flow
$0
Why cash can still decrease overall
Even if operating cash flow is positive, the ending cash balance can fall because of investing or financing activities. For example:
| Category | Cash Effect |
|---|
| Operating activities | +$1.5M |
| Investing activities (equipment purchase) | –$1.2M |
| Financing activities (debt repayment, dividends, share buybacks) | –$0.8M |
| Net change in cash | –$0.5M |
This illustrates why net income and cash balance rarely move in lockstep. Net income measures profitability based on when revenues are earned and expenses are incurred, while the Statement of Cash Flows adjusts for changes in working capital—such as Accounts Receivable and Accounts Payable—and then incorporates investing and financing cash flows to explain the actual change in cash.
