Break-Even Analysis for a Small Business

Break-even is the level of trading at which you stop losing money and have not yet started making any. It is worth computing because it converts a vague worry about whether the business works into a single number you can compare against reality each month.

The arithmetic is simple. The difficulty is always the same one: deciding which of your costs are fixed.

Splitting the costs

Variable costs move with volume. Materials, freight out, packaging, payment gateway charges, sales commission, per-unit subcontracting.

Fixed costs do not, within the range you are trading in. Rent, salaries of permanent staff, software subscriptions, insurance, audit fees, depreciation.

Several costs are genuinely both. Electricity has a sanctioned-load component you pay regardless and a consumption component that moves with production. Split those rather than forcing them into one bucket. If a cost is 70% fixed and you treat it as wholly variable, your break-even comes out too low and you will be reassured by a number that is wrong.

The word that carries the most weight is within the range you are trading in. Rent is fixed until you need a second unit. Supervisor salaries are fixed until you add a shift. Fixed costs are fixed in steps, and the step is usually not far away.

Contribution margin

Contribution is what one unit contributes towards covering fixed costs, after paying for itself.

Contribution per unit = selling price − variable cost per unit.
Contribution margin ratio = contribution per unit ÷ selling price.

A manufacturer sells a unit at ₹2,400. Materials are ₹1,080, direct labour on a piece-rate is ₹360, freight and packing ₹120. Variable cost is ₹1,560, so contribution is ₹840 a unit and the contribution margin ratio is 35%.

Break-even, both ways

With fixed costs of ₹14,70,000 a year:

Break-even in units = fixed costs ÷ contribution per unit = ₹14,70,000 ÷ ₹840 = 1,750 units.

Break-even in rupees = fixed costs ÷ contribution margin ratio = ₹14,70,000 ÷ 0.35 = ₹42,00,000.

Check: 1,750 × ₹2,400 = ₹42,00,000. The two routes agree, as they must.

Monthly, that is about 146 units or ₹3.5 lakh of revenue before the business earns anything.

Margin of safety

Break-even alone tells you nothing about how much room you have. Margin of safety does.

Margin of safety = (actual revenue − break-even revenue) ÷ actual revenue.

If this business turns over ₹58,00,000, the margin of safety is (₹58,00,000 − ₹42,00,000) ÷ ₹58,00,000 = 27.6%. Revenue can fall by a little over a quarter before the business stops covering its costs.

Below roughly 15% the business is fragile in the ordinary sense that one lost customer or one slow quarter puts it under water. That is a judgement about risk appetite rather than a rule, but it is the number to watch monthly, and it moves faster than most owners expect.

The service-business problem

For a consultancy, an agency or a clinic, “units” are ambiguous. There are three workable answers and the right one depends on how you actually sell.

Use billable hours. A practice bills ₹2,000 an hour. Variable cost per billable hour, mostly associate cost, is ₹700. Contribution is ₹1,300. With fixed costs of ₹39,00,000 a year, break-even is 3,000 billable hours. Across a team of four that is 750 hours each, or roughly 15 chargeable hours a week against a 40-hour week. Whether that is comfortable or impossible tells you something immediately.

Use a standard engagement. If you sell retainers at ₹45,000 a month with ₹12,000 of direct delivery cost, contribution is ₹33,000. Fixed costs of ₹39,00,000 mean roughly 118 retainer-months a year, or about 10 clients on the books at all times.

Use the rupee form only. Where the mix is too varied for either, skip units. Compute an average contribution margin ratio across last year’s revenue and use fixed costs ÷ ratio. Less precise, still decision-useful, and it avoids inventing a unit that does not exist.

The hours version is usually the most revealing, because it exposes utilisation. Most service businesses that cannot explain their losses have a utilisation problem rather than a pricing problem, and break-even in hours makes that visible in a way a revenue target does not.

What break-even does not tell you

It assumes a constant sales mix, a constant selling price and linear variable costs. Real businesses give volume discounts, buy materials cheaper in bulk, and sell several products with different margins. Shift the mix towards a low-margin line and break-even rises even though nothing else changed.

It also treats depreciation as a fixed cost, which is right for profit and wrong for cash. A business can be above accounting break-even and still short of cash, and a business below it can survive for a long time on depreciation add-back. If cash is the question, break-even is the wrong tool and a short-horizon forecast is the right one.

Using it as a target rather than a floor

Break-even is more useful inverted. Instead of asking where you stop losing money, ask what revenue delivers the profit you want.

Required revenue = (fixed costs + target profit) ÷ contribution margin ratio.

For ₹12,00,000 of profit: (₹14,70,000 + ₹12,00,000) ÷ 0.35 = ₹76,28,571, or about 3,179 units. That is a sales target derived from the economics rather than picked because it sounds ambitious.

Run your own numbers through the break-even calculator, and see a worked case at ₹2 lakh of fixed cost.

Where this fits

• Your own figures: break-even calculator
• A worked scenario: break-even at ₹2 lakh fixed cost
• Getting the price right first: how to price a service business
• Margin and markup are not the same: profit margin vs markup
• Where the variances come from: standard costing and variance analysis