Course 301: The Income Statement
In this course
1 Introduction
2 Revenue
3 Expenses
4 Important Income Statement Calculations
5 Accrual Accounting
6 The Bottom Line

A company needs to spend money to make money, and these outflows from making and selling its products or providing and selling its services represent a company's expenses. Companies' expenses are usually grouped into similar categories.

Cost of Sales. Cost of sales (also known as cost of goods sold--COGS--or cost of services) represents all of the expenses directly incurred in creating the goods or services that a company sells. Examples include raw materials, items purchased for resale, the cost of running a factory, and labor. If it cost Best Buy $9 to acquire the DVD that you purchased, that $9 is considered a cost of sales. The steel and rubber Harley-Davidson HOG had to purchase to make its motorcycles would also be grouped into cost of sales.

Selling, General, and Administrative Expenses. Selling, general, and administrative expenses (also known as "SG&A") consist of several types of costs. Selling expenses are those expenses incurred in attempting to create sales for the company. Examples include marketing expenses and compensation for sales staff. General and administrative expenses, meanwhile, represent most overhead costs of operating a company's business. Costs related to a company's human resources and finance departments and costs related to its office buildings are examples of general and administrative expenses.

Depreciation and Amortization. When a company purchases an asset that the company intends to use over a period of time, such as a piece of factory equipment or a building, the asset's entire cost isn't immediately expensed on the income statement. Instead, the company expenses the asset gradually over the estimated useful life of the asset. This expense represents the building's or equipment's normal wear and tear over time, and is referred to as depreciation expense.

Amortization is similar to depreciation, except amortization relates to intangible assets, or assets that do not have a physical presence, such as a brand name. Oftentimes, depreciation and amortization are already included in the other expenses mentioned above, so you may not see them listed separately on the income statement. However, the statement of cash flows, one of the other key financial statements, has depreciation and amortization amounts (sometimes combined) disclosed.

It is worth noting that depreciation and amortization expenses are noncash expenses. For more information about noncash revenue and expenses, read the section on accrual accounting later in this lesson.

Other Operating Expenses. Other operating expenses represent all other expenses related to a company's primary operations not included in the above categories. Often, nonrecurring costs or accounting gains are included here. Pay close attention to these items. Some companies abuse these "one-time" accounting events to the point where they become annual events. Also, they frequently include items such as restructuring charges, which are costs incurred to close a factory or lay off part of the workforce, for example. They may also include asset write-offs or write-downs, which often suggest that management may have paid too much for a particular asset or invested too much in an unprofitable business.

Interest Income and Interest Expense. In order to raise funds for the purchase of assets used to run the business, a company may issue debt (i.e., borrow money). In most cases, the company is required to pay interest on these obligations. Conversely, when a company has more cash than it currently needs for operating its business, it may invest this excess money. These investments often earn interest or investment income. On the income statement, you may see interest expense and interest income listed separately or lumped together as net interest expense or net interest income.

Taxes. Just as you pay taxes to Uncle Sam, most companies do, too. For companies that make a profit, taxes are an expense on the income statement.

Next: Important Income Statement Calculations >>

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