Calculating Net and Comprehensive Income

Welcome back. Last time, you classified reported assets and liabilities on a balance sheet at a date. Now we turn to performance over a period. The timing principles you have already used still matter: a customer payment is not necessarily revenue, and a payment for equipment is not necessarily an expense.

In this lesson, you’ll calculate net income from transactions and period-end adjustments, then add other comprehensive income to calculate comprehensive income. This distinction is part of the financial-reporting foundation for USA CMA preparation. Allow about 35–40 minutes for the videos, reading, and worked calculations.

First determine what affected net income

An income statement covers a period, such as “the month ended August 31.” Its central calculation is:

A negative result is a net loss. Revenues and expenses arise from the period’s business activities; gains and losses can arise from other events, such as selling equipment for an amount different from its carrying value.

Watch the opening of this video for a visual introduction to selecting income-statement accounts from an adjusted trial balance—a list of account balances after period-end adjustments have been recorded.

The arithmetic is simple once the items are selected. Selection is the difficult part. Under accrual accounting, include revenue when earned and expenses when incurred, whether or not cash moves in the same period. Conversely, do not turn every cash receipt into revenue or every cash payment into expense. An advance from a customer initially creates an obligation to deliver services; collecting an existing receivable merely exchanges one asset for another.

This also explains why dividends are not expenses. A dividend distributes value to owners; it does not measure a cost incurred to earn the period’s income. The next lesson will trace that distribution through the statement of changes in equity.

Calculate net income from transactions

OpenStax’s Clip’em Cliff example gives us a complete month of transactions followed by the adjustments needed at month-end. Read the two transaction tables first; use the surrounding explanations where a classification is unclear.

Let’s assemble August’s income directly from those facts. Clip’em Cliff earned $4,000 of services billed to a customer and $5,200 of services paid for immediately. By August 31, it had also performed $1,100 of the services covered by a $3,200 advance. Only the performed portion is August revenue; the other $2,100 remains unearned. Finally, $350 of interest was earned during August, even though it had not yet been collected.

Now identify the expenses incurred in August. The $300 supplies purchase was initially an asset; because $250 remained unused, $50 became supplies expense. The period also includes $75 of utilities, $4,600 of salaries, $2,500 of equipment depreciation, and $3,400 of income tax expense that was still unpaid.

There are no other gains or losses specified in this example, so:

That small positive result makes omissions easy to spot. Leaving out the accrued tax expense, for instance, would produce a much larger—but incorrect—income figure.

Several August cash movements do not enter this calculation. Issuing $70,000 of shares is an owner investment, not revenue. Buying equipment exchanges cash (and creates a payable) for an asset; its $2,500 depreciation, not its $45,000 purchase price, is the August expense specified. Paying part of the equipment payable settles a liability. Collecting $1,500 on the earlier billed service reduces a receivable: the $4,000 was counted as revenue when the service was performed, so counting the collection again would double-count it. The $150 dividend is likewise excluded from net income.

A reliable transaction-to-income method is to establish the reporting period, mark what was earned or incurred during it, apply any period-end adjustments, and only then total the income-statement items. Cash movements help explain transactions, but they are not the formula for net income.

Comprehensive income includes a second category

Net income does not capture every change recognized in equity during a period. Under the applicable accounting rules, certain gains and losses are reported as other comprehensive income, or OCI, rather than in net income. The resulting calculation is:

OCI can be positive or negative. For example, a translation adjustment for a foreign operation might produce an OCI loss; a qualifying cash-flow hedge adjustment might produce an OCI gain. Not every unrealized gain belongs in OCI—the accounting treatment of the specific item determines its location.

Watch how net income connects the income statement to the statement of comprehensive income.

AccountingCoach provides a concise reference for both the calculation and where its components accumulate in equity.

Net income contributes to retained earnings; OCI contributes to accumulated other comprehensive income (AOCI), a separate component of equity. Be careful with the time period: OCI is the current period’s activity, while AOCI is its accumulated balance. To calculate this period’s comprehensive income, add this period’s OCI, not the ending AOCI balance.

If Clip’em Cliff had no OCI items in August, its comprehensive income would equal its $25 net income. That is a conclusion based on the stated transactions, not a claim that every company’s two figures are equal.

Bring both calculations together

Suppose a different company, Harbor Services, reports the following for one month. These amounts describe this month’s transactions and adjustments, not beginning balances:

• Services earned: $18,000 billed or paid during the month, plus $1,200 of services performed from a previously received customer advance.
• Gain on the sale of equipment: $500, measured as proceeds above its carrying value.
• Wages incurred: $7,800, including $800 not yet paid; rent used: $2,400; insurance coverage used: $100; depreciation: $600; income tax expense: $1,700.
• Qualifying foreign-currency translation OCI loss: $400, and qualifying hedge OCI gain: $900. Assume both OCI amounts are already stated net of any related tax effects.
• Cash collected on an older receivable: $2,500; dividends declared: $600.

The earned services and equipment gain belong in net income. So do all the listed expenses, including the unpaid wages and tax expense and the insurance used up. The receivable collection is not new revenue, and the dividend is not an expense.

The two items explicitly identified as OCI are not included in that $7,100. Their signed total is a $500 gain:

Therefore:

Notice that Harbor’s $500 equipment-sale gain and $900 hedge OCI gain are both gains, but they enter different parts of the calculation. Their labels and applicable accounting treatment—not whether cash was received—determine that distinction. Nor would Harbor subtract its $600 dividend from either income measure.

Key takeaways

To calculate net income, total the period’s earned revenues and recognized gains, then subtract its incurred expenses and recognized losses after adjustments. Do not substitute cash receipts and payments for those amounts. To calculate comprehensive income, add the period’s signed OCI to net income; do not use the accumulated OCI balance or treat owner distributions as expenses.

Next, you’ll use income and owner transactions to prepare a statement of changes in equity, showing where net income, OCI, investments, and distributions appear in equity over a period.