Net Income: Definition and Difference From Gross Profit

Net Income: Definition and Difference From Gross Profit

Net income can help investors and stakeholders evaluate the financial success of a company, calculate the company’s earnings per share, and pinpoint inefficiencies.

Net income and gross profit are both components of an income statement that demonstrate the profitability of a company—but they do so through different lenses.

The Basics

What is net income?

If you’ve ever heard the term “the bottom line,” it refers to net income, which is the final line at the bottom of an income statement and is often synonymous with profit. Net income, also sometimes called net profit or net earnings, takes into account all of the expenses of a business including COGS, operating expenses, and other costs like taxes that are not included in the gross profit. 

To calculate net income, use this simple equation:

Net income = Revenue Expenses

In this equation:

To break out more detail, use this expanded equation:

Net income = Revenue – COGS – Operating Expenses – Taxes – Interest 

Net income example

Consider Apple’s 2018 consolidated statement of operations. Apple reported the following totals (rounded for ease): 

Net income on Apple’s 2018 income statement.

What is gross profit?

Gross profit is the difference between what a business sold to customers (revenue or net sales) and how much it cost to make the thing they sold them (cost of goods sold/“COGS”). Net income encompasses gross profit and expands upon it by adding overhead expenses, taxes, and income not tied to sales into the mix. 

To calculate gross profit, subtract cost of goods sold (COGS) from the total revenue:

Gross profit = Revenue – COGS

In the this equation:

Gross margin on Apple’s 2018 income statement.

In the case of Apple, they refer to revenue as “net sales,” as “cost of sales,” and gross profit as “gross margin.” 

Net income vs. gross profit: What each tells you about a business

Net income answers the ultimate question—after accounting for all revenue and all expenses, did we make money or lose money, and how much? Net income’s measure of profitability factors in all categories of expenses—which means you get a complete picture of profit. What you don’t get is a granular breakdown of the business’s categories of expenses that impact the bottom line. 

Gross profit, on the other hand, looks specifically at production costs and does not include operating expenses. This gives you a sense of the profitability of the goods or services the business sells, but it doesn’t tell you how overhead costs impact overall profits. 

When you’re reading an income statement, the limitations of gross income and net income can skew your understanding of a company’s profitability. It’s important to look through multiple lenses and only draw conclusions once you have looked at both metrics from multiple angles and how those metrics feed into or inform other financial statements like the cash flow statement.

For example, net income doesn’t tell you exactly where certain types of revenues and expenses originate. If the product is not selling well or is costing more to produce than customers will pay for it, profitable investments and sales of assets in the net income could hide the actual profitability of the company’s product. 

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