A normalised margin is the recurring, sustainable margin level of a business after removing non-recurring items, exceptional charges and non-arm's length transactions from the income statement. It may apply to gross margin, EBITDA margin, operating margin or net margin. Normalised margins serve as the base for multiple-based valuations and as the steady-state profitability assumption in DCF terminal values. Their derivation from historical multi-year data, with documented restatements, is the core output of every quality of earnings review.

‍

Example: a Swiss SME presents EBITDA margins of 21%, 14% and 19% over 3 years — volatility driven by an exceptional contract in year 1 and restructuring costs in year 2. After restatements (removing the exceptional contract contribution and adding back the restructuring charges), the normalised EBITDA margin is 18% — CHF 1.8 million on CHF 10.0 million revenue, the base retained for the 7.5x EV/EBITDA multiple application.

‍

Hectelion constructs normalised margins from multi-year data with individual restatement documentation — the foundation of every defensible acquisition valuation.