Income Statement


1. Definition & Purpose

  • An Income Statement (also called a Profit & Loss Statement) shows a company’s financial performance over a specific period (quarter, year).

  • It follows the fundamental equation:

  • It helps investors and managers analyze profitability, cost efficiency, and financial trends.


2. Components of the Income Statement

A. Revenue (Top Line)
  • Total Revenue (Sales): Income from selling products/services.

  • Net Revenue: Total revenue after subtracting discounts, allowances, and returns.


B. Cost of Goods Sold (COGS)
  • COGS: Direct costs to produce goods/services sold.

  • Formula:

  • Higher COGS means lower profit margins.


C. Gross Profit
  • Measures profitability after deducting direct costs.

  • Formula:

  • Gross margin percentage:


Depreciation = deduction of assets over a period of time.

Amortization = intangible assets. deduction of their cost over a specified period, similar to how depreciation applies to tangible assets.


D. Operating Expenses (OPEX)
  • Costs related to running the business but not directly linked to production.

  • Includes:

    • Selling, General & Administrative Expenses (SG&A): Marketing, salaries, rent.

    • Depreciation & Amortization: Reduction in asset value over time.

    • Research & Development (R&D): Investment in innovation and new products.


E. Operating Income (EBIT - Earnings Before Interest & Taxes)
  • Formula:

  • Measures profit before financing and taxes.


F. Other Income & Expenses
  • Interest Income: Earnings from investments.

  • Interest Expense: Cost of borrowing money.

  • Gains/Losses: From selling assets, currency fluctuations.


G. Pretax Income (EBT - Earnings Before Taxes)
  • Formula:


H. Taxes
  • Corporations pay taxes on their earnings.

  • Formula:


I. Net Income (Bottom Line)
  • Formula:

  • Indicates final profit after all expenses, taxes, and interest.

  • Also known as "Earnings" or "Profit."


3. Key Income Statement Ratios

 Profit Margin:

  • Measures profitability after all expenses.

 EBIT Margin:

  • Measures operating efficiency before interest and taxes.

 Earnings Per Share (EPS):

  • Measures profit per share of stock.

 Return on Sales (ROS):

  • Indicates efficiency in converting sales into profit.


4. Interpreting the Income Statement

  • Increasing revenue over time shows growth.

  • High gross profit margin means efficient production & pricing.

  • Lower operating expenses lead to higher operating income.

  • Net income growth indicates strong profitability.


5. Key Takeaways

The Income Statement shows financial performance over time.  Net Income = Total Revenue - Total Expenses.  Higher profit margins indicate better profitability.  Used by investors to evaluate a company’s financial health.

This study guide covers everything you need to master the Income Statement for your exam!