Vertical Analysis

What is vertical analysis?

Vertical analysis expresses each line item in a financial statement as a percentage of a chosen base figure for the same reporting period. Common bases:
- Income statement: net (or gross) sales/revenue = 100%
- Balance sheet: total assets (or total liabilities + equity) = 100%
- Cash flow statement: total cash inflows or total cash outflows = 100%

Also called common-size analysis, vertical analysis reveals the relative importance of each item within a single period.

How it works

  • Choose the financial statement and the base figure (e.g., sales for the income statement).
  • Divide each line item by the base figure and multiply by 100 to get a percentage.
  • Present the results in a separate column (the common-size column) alongside dollar amounts.

Formula:
- Line item percentage = (Line item amount / Base figure) Γ— 100%

Uses:
- Compare the composition of financial statements across companies and industries.
- Assess the internal structure of a company’s finances (profit margin drivers, cost structure).
- Track whether components (e.g., expenses as a percentage of sales) are improving or worsening over time.

Common-size financial statements

When companies prepare financial statements with vertical analysis, each statement becomes a common-size financial statement. These often include comparative columns for prior periods, facilitating cross-sectional and limited trend comparisons within the same period base.

Example

Assume XYZ Corporation (one period):
- Gross sales: $5,000,000 (base = 100%)
- Cost of goods sold: $1,000,000 β†’ 20% of sales
- General & administrative expenses: $2,000,000 β†’ 40% of sales
- Pre-tax income: $2,000,000 β†’ 40% of sales
- Tax (25% of pre-tax income): $500,000 β†’ 10% of sales
- Net income: $1,500,000 β†’ 30% of sales

This common-size presentation makes it easy to see margins and expense drivers at a glance.

Simple nonfinancial example:
- Total units sold: 40,000
- Sneakers: 14,000 β†’ 35%
- Boxing gloves: 26,000 β†’ 65%

Vertical vs. horizontal analysis

  • Vertical analysis: expresses items within one period as percentages of a base figure to show relative structure.
  • Horizontal (trend) analysis: compares the same line items across multiple periods, showing percentage change over time relative to a base year.

Both are complementary: vertical analysis clarifies composition within a period; horizontal analysis reveals trends over time.

Pros and cons

Pros:
- Improves comparability across companies and industries regardless of size.
- Highlights which items drive margins and financial structure.
- Easy to interpret and communicate.

Cons:
- Ignores absolute dollar scale (a high percentage may reflect low absolute amounts).
- Can hide issues that only appear when looking at raw numbers or longer-term trends.
- Requires consistent accounting policies for meaningful cross-company comparisons.

Key takeaways

  • Vertical analysis converts financial statement line items into percentages of a base figure, creating common-size statements.
  • It helps compare structure and profitability across companies, within a company, and across industries in a single period.
  • Use vertical analysis together with horizontal and ratio analysis for a fuller view of financial performance and trends.