How to Calculate Your Break-Even Point Before Starting

Quick answer. The break-even point is the annual turnover at which your business stops losing money. You calculate it by dividing your fixed costs by your contribution margin rate. Example: 60,000 euros of fixed costs and a 60% margin rate give a break-even of 100,000 euros in turnover.

Deciding to start a business without knowing your break-even point is like driving with no dashboard. The real question for a founder is not how much you will earn, but how much you must invoice, at the very minimum, to avoid living off your savings. That figure drives your pricing, your sales pace, your hiring date and, often, the viability of the project itself. We calculate it in every business creation file we handle, before we even discuss the legal structure.

The break-even point is the level of turnover at which profit is zero: every cost is covered, with neither profit nor loss. Below it, you lose money. Above it, each euro sold starts generating profit.

It rests on a distinction many founders overlook: the split between fixed and variable costs. Fixed costs exist even if you sell nothing (rent, insurance, software subscriptions, the director's pay). Variable costs rise with activity (goods purchased, subcontracting, commissions, raw materials).

This is not an accountant's vanity exercise. Article L232-2 of the French Commercial Code actually requires a forecast income statement and a forecast financing plan from companies with at least 300 employees or 18,000,000 euros in net turnover. What the law demands of large groups as a safeguard, a founder has every interest in doing from day one.

The formula fits on one line, but every term deserves care:

Break-even point = Fixed costs / Contribution margin rate

The contribution margin rate is calculated as (Turnover minus Variable costs) divided by Turnover. The difference between turnover and variable costs has a name: the contribution margin. It is what each sale leaves behind to fund fixed costs and then generate a profit.

We stress one vocabulary point that causes a chain of errors: the contribution margin is not the gross commercial margin. To understand the nuance, which changes the result of the calculation, see our article on how to distinguish gross margin from contribution margin.

The calculation, step by step#

1. List all your annual fixed costs: rent, insurance, fees, subscriptions, the director's pay and contributions, depreciation.
2. Estimate your contribution margin rate from your selling price and direct costs.
3. Divide fixed costs by that rate to get the break-even point in turnover.
4. Convert that amount into sellable units (billable days, covers, baskets, subscriptions).
5. Translate the break-even into a break-even date: when in the year do you reach it?
6. Compare that break-even with your realistic forecast turnover.

Take a consultant launching their activity. Here is the project structure, simplified for the demonstration.

The activity is consulting: variable costs are low (occasional subcontracting, re-billed travel). The consultant estimates a contribution margin rate of 60%. The calculation gives:

Break-even point = 60,000 / 0.60 = 100,000 euros of annual turnover.

Billing an average of 700 euros per day, they need to sell roughly 143 days in the year to reach equilibrium. This concrete translation is what makes the figure actionable. A full demonstration appears in our detailed break-even calculation method, and you can test your own assumptions with our break-even and break-even-date simulator.

The two concepts are linked but do not measure the same thing. The break-even point is an amount (in euros of turnover). The break-even date is a date (the moment in the year the amount is reached).

In our example, if the consultant forecasts 130,000 euros of turnover for the year, the break-even date falls around day 281, in early October. The safety margin is 30,000 euros: the drop in activity they can absorb before slipping back into the red.

Micro-entreprise and auto-entrepreneur. Under the micro regime, profit is calculated after a flat-rate allowance, and you do not deduct your actual costs. The accounting break-even still helps you steer cash flow, but you must compare it with the regime ceilings: for 2026 income, 203,100 euros for the sale of goods and 83,600 euros for services. Above that, the regime changes. The specifics of the auto-entrepreneur status should be built into the calculation from the start.

VAT exemption (franchise en base). While you stay below the exemption threshold (37,500 euros for services, 85,000 euros for trade in 2026), you do not charge VAT but cannot reclaim it either. Crossing these thresholds changes your contribution margin and therefore your break-even point. The single 25,000-euro threshold planned by the 2025 Finance Act was abandoned.

Seasonal activity. Restaurants, beach businesses, training: an annual break-even hides loss-making and surplus months. You then need to reason by season and anticipate the cash flow of the troughs. That is the whole point of our analysis of restaurant profitability.

The errors we correct most often in business creation forecasts rarely come from the arithmetic. They come from the assumptions.

• Forgetting your own pay in the fixed costs. A founder who takes no salary in year one shows an artificially low break-even. The figure is honest only when the director's pay and contributions are included.
• Confusing turnover with cash. Reaching break-even does not guarantee having the money in the bank at the right time, because of payment terms and working capital needs. We address this confusion in our article on the difference between turnover, profit and cash.
• Overestimating the margin rate. One point of margin can shift the break-even by several thousand euros. A cautious calculation beats a flattering forecast.
• Ignoring the tax effect. At break-even, profit is zero, so tax is too. But once profit appears, corporate income tax applies: 15% on the share of taxable profit up to 42,500 euros, subject to conditions, under article 219, I-b of the French tax code. The after-tax break-even is higher than the accounting one.

Our reading is straightforward: the break-even point is not a deliverable at the end of a business plan, it is a decision tool at the very start of the project. When a founder shows us a forecast turnover very close to their break-even, we know the model is fragile: the slightest dip in activity tips it into loss. Conversely, a comfortable safety margin allows the first investments and hires.

The underestimated risk in business creation files is the time horizon. A break-even reached in year three does not mean the same thing as one reached in month six: between the two, you must fund the cumulative loss, which means having enough equity or borrowing. That is precisely the role of a carefully built forecast financial statement, which links the break-even to the financing plan.

We were recently approached by a founder in engineering consulting to validate their project. Their break-even came out at 95,000 euros, their forecast turnover at 98,000 euros. On paper, the project worked. Reviewing the assumptions, two items were missing: their own social protection and a 45-day customer payment term. Once corrected, the break-even rose to 118,000 euros, above the target turnover. We reworked their offer and sales pace before incorporation, not after. That is the perspective we bring as chartered accountants registered with the French professional body: challenging the assumptions before they become costly.

Hayot Expertise tip. Calculate your break-even with two sets of assumptions: a cautious scenario and a realistic one. If the cautious scenario does not cover your fixed costs in year one, the project is not ready. Have the calculation validated by a professional before signing a lease or a loan: that is the best time to adjust, and the cheapest.