Why Net Income Is Not the Same as Cash
A business can report revenue before its customer pays, and it can incur an expense before it pays the supplier or employee. It can also report an expense, such as depreciation, without making a cash payment in the current period. For these reasons, net income measures revenues earned minus expenses incurred; it is not simply cash received minus cash paid.
The distinction matters when interpreting an income statement. Positive net income does not guarantee that the business collected the same amount of cash during the period. To understand the difference, track both the timing of the underlying activity and the related balance-sheet accounts.
A credit sale illustrates the revenue timing difference. The seller recognizes revenue when it earns the amount by providing the goods or services, even if the customer will pay later. The unpaid amount is generally recorded as accounts receivable. Similarly, an expense incurred but not yet paid can create an accrued liability, such as wages payable. Depreciation allocates the cost of a long-lived asset to periods in which it is used; the depreciation expense is recorded in the current period, but it is not a current-period cash payment.
Credit Sales: Revenue Earned Versus Cash Collected
When there are no write-offs, discounts, sales returns, or other adjustments affecting accounts receivable, the receivable balance links credit revenue with collections. A receivable increases when credit sales are made and decreases when customers pay. Thus, the change in receivables—not merely the ending balance—measures how much of the period’s credit revenue remains uncollected.
Cash sales are collected when the sale occurs. Therefore, if the only revenue categories are cash sales and credit sales, total cash receipts from customers equal cash sales plus cash collected on credit sales. The total revenue recognized is cash sales plus credit sales. The two totals differ by the increase or decrease in accounts receivable.
Worked Example: Separating Credit Revenue From Customer Collections
A hypothetical equipment supplier begins the quarter with accounts receivable of $24,000. During the quarter, it makes cash sales of $50,000 and credit sales of $110,000. It ends the quarter with accounts receivable of $39,000. Assume there are no write-offs, returns, discounts, or other adjustments to receivables. Find revenue recognized and cash received from customers.
Method. First determine total revenue from the sales made during the quarter. Then use the change in accounts receivable to determine collections on credit sales.
Step 1: Calculate revenue. Revenue includes both cash and credit sales:
Step 2: Find the increase in accounts receivable.
Step 3: Calculate collections on credit sales. Credit sales of $110,000, less the $15,000 increase in receivables, give collections of $95,000:
Step 4: Calculate total customer cash receipts. Add the $50,000 cash sales to the $95,000 collected on credit sales:
The supplier recognizes $160,000 of revenue but receives $145,000 from customers during the quarter. The $15,000 difference equals the increase in accounts receivable. As a check, the receivable rollforward is $24,000 beginning balance + $110,000 credit sales − $95,000 collections = $39,000 ending balance. This method avoids the mistake of treating every credit sale as cash collected.
Accrued Expenses: Expense Incurred Versus Cash Paid
The same timing principle applies to expenses. If an expense is incurred before it is paid, the unpaid amount is recorded as a liability. For an expense that accumulates in a payable account, the period’s cash payments equal the expense recognized less the increase in the payable. A decrease in the payable means that cash payments include amounts owed from an earlier period.
This relationship assumes that the payable relates to the expense being analyzed and that there are no other adjustments, such as noncash settlements or reclassifications. An increase in the payable makes cash paid less than expense incurred; a decrease makes cash paid greater than expense incurred.
Worked Example: Wages Incurred Before Payday
A hypothetical consulting firm earns $70,000 of service revenue during a month. Accounts receivable is $10,000 at the beginning of the month and $18,000 at the end. The firm incurs $54,000 of wage expense. Wages payable is $8,000 at the beginning of the month and $13,000 at the end. Assume there are no other revenues or expenses and no other changes to the stated accounts. Find net income and the month’s net cash from the stated customer receipts and wage payments.
Method. Calculate customer collections from the receivable change, wage payments from the payable change, and net income from accrual revenue and expense.
Step 1: Calculate customer cash receipts. Receivables increase by $8,000:
Collections are revenue less that increase:
Step 2: Calculate cash paid for wages. Wages payable increases by $5,000:
Cash paid is the wage expense less the increase in wages payable:
Step 3: Calculate net income.
Step 4: Calculate net cash from these stated transactions.
The results check against the balance changes: net income of $16,000 less the $8,000 increase in receivables plus the $5,000 increase in wages payable equals $13,000. Net cash is $3,000 below net income because the increase in receivables exceeds the increase in wages payable by $3,000. The mistake to avoid is subtracting the full wage expense as though all wages incurred had already been paid.
Depreciation: An Expense Without a Current Cash Payment
Depreciation is an expense recognized to allocate the cost of a long-lived asset over periods in which the asset is used. When depreciation is recorded, it reduces income, typically with a corresponding increase in accumulated depreciation. It does not, by itself, represent a cash payment in the period in which the depreciation expense is recognized. The cash outflow generally occurred when the asset was acquired, which may have been in an earlier period.
Consequently, when comparing net income with cash generated by the transactions in a period, a noncash depreciation expense must be distinguished from expenses that require current cash payment. The comparison also needs to account for timing differences in receivables and accrued liabilities.
Worked Example: Reconciling Net Income With Cash From Operations
A hypothetical repair company has beginning accounts receivable of $30,000 and ending accounts receivable of $60,000. During the year, it earns $250,000 of cash sales and $150,000 of credit sales. It incurs $40,000 of salary expense, with salaries payable increasing from $12,000 to $22,000. It also incurs $190,000 of other operating expenses, all paid in cash during the year, and records $25,000 of depreciation. Assume no other revenues, expenses, taxes, or cash transactions, and assume there are no write-offs or other adjustments to receivables or salaries payable. Find net income, customer receipts, cash paid for the stated expenses, and net cash from these transactions.
Method. Apply accrual accounting to calculate net income, then convert revenue and expenses to cash amounts using the changes in the related balance-sheet accounts. Treat depreciation as a noncash expense.
Step 1: Calculate accrual revenue.
Step 2: Calculate net income. Total expenses are $40,000 of salary expense, $190,000 of other operating expenses, and $25,000 of depreciation:
Therefore:
Step 3: Calculate collections on credit sales and total customer receipts. Accounts receivable increases by $30,000, so collections on credit sales are:
Adding cash sales gives total customer receipts of $250,000 + $120,000 = $370,000.
Step 4: Calculate cash paid for salaries. Salaries payable increases by $10,000:
Cash paid for salaries is $40,000 − $10,000 = $30,000. Add the $190,000 of other operating expenses, which the problem states were paid in cash. Total cash paid is $30,000 + $190,000 = $220,000.
Step 5: Find net cash from these transactions.
Net cash of $150,000 exceeds net income of $145,000 by $5,000. The reconciliation is net income less the $30,000 increase in receivables, plus the $10,000 increase in salaries payable, plus $25,000 of noncash depreciation:
The result also checks directly: customer receipts are $30,000 below revenue, salary cash payments are $10,000 below salary expense, and depreciation reduces income by $25,000 without reducing current-period cash.
Why the Reconciliation Works
A compact reconciliation follows from the same account rollforwards used in the examples. Define the change in an account as its ending balance minus its beginning balance. For this derivation, assume revenue is limited to cash sales and credit sales; receivables have no write-offs or other adjustments; expenses are limited to cash expenses, expenses recorded through accrued payables, and depreciation; and there are no changes in prepaid expenses or other noncash items. Also assume no taxes or other income-statement items.
Credit revenue adds to receivables when earned; collections reduce receivables. Therefore, total cash receipts equal accrual revenue minus the change in accounts receivable.
Accrued liabilities increase when expenses are recognized before payment. Thus, cash paid for accrued expenses is the expense less the change in the related payable. Depreciation is excluded from current cash payments because it is noncash.
Substituting the receipt and payment relationships into net cash gives net income, adjusted for the listed timing differences and the noncash depreciation expense.
In symbols, let \(\Delta AR\) be the change in accounts receivable, \(\Delta AP\) the change in accrued payables, and \(D\) depreciation expense. Net income \(NI\) is revenue less total expenses. Under the stated assumptions:
This is a limited reconciliation for the stated accounts, not a complete treatment of every possible cash-flow item. Other noncash expenses, prepaid expenses, inventory changes, taxes, or additional accounts can create further differences. The sign logic is the key: an increase in receivables reduces collections relative to revenue; an increase in a payable reduces payments relative to expense; and a noncash expense such as depreciation reduces net income without reducing current cash.
Common Mistakes and Why the Distinction Matters
A frequent error is to use the ending balance of a receivable or payable in place of the change in the balance. In the repair-company example, using ending balances would produce the incorrect calculation:
The correct reconciliation uses changes: receivables increased by $60,000 − $30,000 = $30,000, and salaries payable increased by $22,000 − $12,000 = $10,000. Thus the correct net cash is $145,000 − $30,000 + $10,000 + $25,000 = $150,000. Opening balances matter because some collections or payments during the period relate to amounts already recorded before the period began.
- Do not equate credit sales with collections. Revenue is recognized when earned; collections depend on the receivable balance changing.
- Do not equate an expense with a payment. An accrued expense can remain unpaid at period-end, while a payment can settle a prior-period liability.
- Do not treat depreciation as a current cash outflow. It reduces net income but, by itself, does not use cash in the period.
- Use the right direction for each change. An increase in receivables reduces cash receipts relative to revenue; an increase in a payable reduces cash payments relative to expense.
The distinction is useful because net income and cash answer different questions. Net income summarizes performance under accrual accounting for a reporting period. Cash receipts and payments show when money moved. A business can report income while waiting for customers to pay, or have cash payments that exceed current-period expenses because it is settling earlier obligations.
Check Your Understanding
Use accrual amounts and the stated account changes to work through these original problems.
- A hypothetical parts distributor records $96,000 of credit sales. Accounts receivable is $14,000 at the beginning of the period and $23,000 at the end. Assume no write-offs or other adjustments. How much cash is collected on these sales? (Answer: $87,000)
- A firm incurs $48,000 of an expense that is recorded in a payable account. The payable begins at $6,000 and ends at $10,000. Assuming no other adjustments, how much cash does the firm pay for this expense? (Answer: $44,000)
- A service firm earns $150,000 of revenue. Accounts receivable decreases from $31,000 to $19,000. It incurs $70,000 of expenses recorded through an accrued payable, which decreases from $17,000 to $8,000. Assume there are no other revenues or expenses. Find net income and net cash from these receipts and payments. (Answer: Net income is $80,000; net cash is $83,000)
- A hypothetical maintenance company earns $220,000 of revenue. Accounts receivable increases by $25,000. Its expenses are $80,000 of cash operating costs paid in the period, $50,000 of wage expense, and $20,000 of depreciation. Wages payable increases from $5,000 to $11,000. Assume no other transactions. Find net income and net cash from these transactions. (Answer: Net income is $70,000; net cash is $71,000)
- A hypothetical distributor earns $310,000 of revenue and receives $284,000 in cash from customers. Beginning accounts receivable is $26,000. Total expenses are $205,000, including $15,000 of depreciation; all other expenses are paid in cash except for amounts recorded through an accrued payable. That payable increases from $18,000 to $25,000. Assume no prepaid expenses or other transactions. Find ending accounts receivable, cash paid for expenses, net income, and net cash from the stated operations. (Answer: Ending accounts receivable is $52,000; cash paid is $183,000; net income is $105,000; net cash is $101,000)