Vertical analysis expresses each financial-statement line as a percentage of a common within-period base to evaluate composition and margins.
Vertical analysis expresses each line of a financial statement as a percentage of one common base within the same period. Revenue is commonly the base for an income statement, while total assets or total liabilities and equity commonly serve as the base for a balance sheet.
The method produces a Common-Size Statement. It reveals composition, not the cause or quality of that composition.
The general calculation is:
Common bases are:
| Statement | Common base | Typical interpretation |
|---|---|---|
| Income statement | Revenue or net sales | Cost and profit per revenue dollar |
| Balance sheet | Total assets | Share of resources held in each asset and financed by each liability or equity category |
| Segment income statement | Segment revenue | Segment-specific cost and margin structure |
| Cash-flow statement | No universally preferred base | Custom analytical relationship that must be labeled |
Assume a company reports total assets of $4.0 million:
| Asset | Amount | Percentage of total assets |
|---|---|---|
| Cash | $400,000 | 10.0% |
| Accounts receivable | $800,000 | 20.0% |
| Inventory | $1,000,000 | 25.0% |
| Property, plant, and equipment | $1,500,000 | 37.5% |
| Other assets | $300,000 | 7.5% |
| Total assets | $4,000,000 | 100.0% |
Inventory is calculated as:
The financing side is:
| Liability or equity | Amount | Percentage of total assets |
|---|---|---|
| Current liabilities | $1,100,000 | 27.5% |
| Long-term debt | $1,400,000 | 35.0% |
| Equity | $1,500,000 | 37.5% |
| Liabilities and equity | $4,000,000 | 100.0% |
The statement shows that inventory represents one-quarter of assets and the separately reported long-term-debt line represents 35%. Total interest-bearing debt could be higher if current liabilities include short-term borrowings or current maturities. The percentages do not establish whether inventory is saleable, debt is affordable, or equity returns are adequate.
On an income statement, revenue is commonly 100%. Cost of goods sold as a percentage of revenue identifies the inverse of gross margin, while operating expenses and operating income show how much of each revenue dollar is consumed or retained at each stage.
Useful lines include:
Expense classification matters. Two companies can incur similar costs but present them in different lines, making individual percentages look different even when total economics are similar.
| Method | Direction of comparison | Example |
|---|---|---|
| Vertical analysis | Within one statement and period | Inventory as 25% of total assets |
| Horizontal analysis | Same line across periods | Inventory increased $150,000, or 18% |
| Trend Analysis | Pattern across several periods and measures | Inventory share and inventory days both rise for three years |
| Ratio analysis | Relationship between selected quantities | Current assets divided by current liabilities |
The methods are complementary. Vertical analysis identifies composition, horizontal analysis measures movement, and trend analysis tests persistence and related drivers.
Vertical analysis can compare companies of different size, but only after checking:
A software company and a manufacturer should not be expected to have the same inventory, fixed-asset, or gross-margin percentages. Comparability means understanding similarities and differences, not forcing uniformity.
Asset mix. Does a higher receivable or inventory share reflect growth, slower conversion, acquisition, or weak demand?
Capital intensity. Does a rising fixed-asset share support capacity, or does it indicate underutilized investment?
Funding structure. Is a larger debt share matched by cash generation and manageable maturity timing?
Cost structure. Are margin changes driven by price, volume, mix, input cost, classification, or one-time items?
Cash availability. Does a high cash percentage include restricted, pledged, or inaccessible balances?
This page is educational and does not provide accounting, audit, credit, valuation, or investment advice.