A three-statement model is an integrated financial model that links the income statement (P&L), balance sheet, and cash flow statement. Changes in one statement automatically flow through to the others, providing a complete and consistent view of a company's financial position. It is the foundation of rigorous FP&A analysis.
In Depth
The three-statement model is the gold standard of financial modelling. By connecting the three core financial statements, it ensures that assumptions about revenue, costs, investments, and financing flow consistently through the entire financial picture.
The linkages work as follows: Net income from the P&L feeds into retained earnings on the balance sheet. Changes in balance sheet items (receivables, payables, inventory, debt) drive the cash flow statement. Cash on the balance sheet must equal the ending cash on the cash flow statement. Capital expenditure hits the balance sheet as asset additions and flows through the P&L via depreciation.
Building a three-statement model typically follows a structured approach. Start with revenue assumptions and build the P&L from top to bottom. Model the balance sheet using working capital assumptions (DSO, DIO, DPO), fixed asset schedules, and debt schedules. Derive the cash flow statement from P&L and balance sheet changes. Finally, check that the balance sheet balances and cash flows reconcile.
FP&A teams use three-statement models for annual budgeting, long-range planning (3-5 year forecasts), scenario analysis, and investment appraisal. The integrated nature means that changing a single assumption — say, revenue growth — cascades through all three statements, revealing the full financial impact.
For UK businesses, three-statement models should reflect UK GAAP (FRS 102) or IFRS presentation requirements, incorporate UK-specific tax calculations (corporation tax, capital allowances), and model working capital timing specific to UK payment practices.
Real-World Example
A UK startup's FP&A team builds a three-statement model for its Series A fundraise. The model projects 5 years of P&L growth (from £1M to £12M revenue), balance sheet changes (working capital scaling with revenue, fundraise proceeds adding to cash), and cash flow (showing the cash runway extending through the planned Series B at year 3). The model reveals that the business needs £4M to reach cash flow break-even, supporting the fundraise ask.
Related Terms
A P&L (profit and loss) statement, also called an income statement, summarises a company's revenues,...
A balance sheet is a financial statement that reports a company's assets, liabilities, and sharehold...
A cash flow statement reports the inflows and outflows of cash over a period, divided into three cat...
A financial model is a quantitative representation of a company's financial performance, built in sp...
A DCF (Discounted Cash Flow) model values a company or project by projecting future free cash flows ...
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