2 min read
Gross profit: your commercial engine
Gross profit is revenue minus cost of sales — the direct costs that rise and fall with the volume of work you do. For a manufacturer, cost of sales includes raw materials and direct labour. For a consultancy, it might include only subcontractor fees. For a retailer, it is the cost of buying stock.
Gross margin (gross profit as a percentage of revenue) measures how efficiently your core commercial activity generates value before corporate overheads enter the picture. A falling gross margin is an early warning that input costs are outrunning prices, or that lower-margin work is crowding out higher-margin lines.
Operating profit: running the business
Operating profit (also called EBIT — earnings before interest and tax) deducts all operating overheads from gross profit: staff costs not in cost of sales, premises, marketing, depreciation, software, professional fees and everything else required to run the business. It is a measure of how well the entire business operation — commercial activity plus supporting infrastructure — generates value.
Operating profit is the figure most useful for comparing performance across time or against industry peers, because it excludes financing decisions (debt levels vary between companies) and tax (rates and reliefs vary). A business with strong gross margins but weak operating margins is spending heavily on its overhead base relative to its revenue.
Net profit: after finance and tax
Net profit (or profit after tax) is what remains once interest on borrowings and corporation tax have been deducted from operating profit. It is the definitive measure of what the business earned for its shareholders during the period.
Directors sometimes focus too heavily on net profit because it is the 'final answer' — but it can obscure important dynamics. A company can improve net profit simply by reducing its debt (and therefore interest costs) without making the underlying business more efficient. Reading all three profit levels together gives a clearer picture of where improvements are genuinely coming from.
Using the three margins together
The real value of tracking all three profit levels is that each margin narrows the diagnosis when performance deteriorates. If gross margin is stable but operating margin is falling, the problem lies in overhead growth. If operating margin is stable but net margin is falling, borrowing costs or the effective tax rate may be the culprit.
- Gross margin declining: review pricing, supplier costs, product mix and direct labour efficiency
- Operating margin declining despite stable gross margin: examine overhead categories for cost creep
- Net margin declining despite stable operating margin: consider debt levels, refinancing options and tax planning
- All three rising: the business is scaling efficiently — a strong position to support further investment or lending
Frequently asked questions
Which profit figure do lenders care about most?
Commercial lenders typically focus on EBITDA (earnings before interest, tax, depreciation and amortisation) as a proxy for cash generation, alongside operating profit. Net profit is less useful to lenders because it is after the very interest costs the lending will affect.
Can a company have a positive gross profit but a net loss?
Yes, and it is common in early-stage businesses. If overheads are high relative to gross profit — as often happens during a scale-up phase — operating and net profit will be negative even though each unit of product or service sold is individually profitable.
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