Operating leverage

What it means

Operating leverage expresses how strongly a change in revenue translates into a change in operating profit, or EBIT. Its size is determined by the ratio of fixed costs to variable costs. The larger the share of fixed costs, the higher the leverage.

The principle is simple. Once a company passes its break-even point and fixed costs are covered, every further euro of revenue after variable costs goes straight to profit. With high leverage, a ten per cent rise in revenue can lift profit by tens of per cent.

It works the same way in reverse. When revenue falls, fixed costs remain and profit drops faster than sales. Operating leverage is often mentioned alongside financial leverage, which similarly amplifies the effect of debt on owners’ returns.

How it works in practice

When planning with clients, we split costs into fixed and variable and calculate the revenue at which the company breaks even. A sensitivity analysis then shows how profit changes if revenue falls or rises by a few per cent.

When considering an investment, such as buying a machine instead of outsourcing to a subcontractor, we point out that the company is turning variable costs into fixed ones. That raises potential profit in growth but also the risk if demand drops.

Businesses with fluctuating demand, such as seasonal ones, therefore often try to keep part of their costs variable: external workers, renting instead of buying, commissions instead of fixed salaries. This lowers their leverage and makes results more stable.

What to watch out for

Operating leverage is not a fixed value. It changes with how far the company is from break-even. Just above that point leverage is very high, and a small swing in revenue can mean moving from profit to loss.

Misclassifying costs is another risk. Many items are semi-fixed, such as energy or salaries with a variable component. If the company classifies them mechanically, the leverage and break-even calculations will be distorted.