Knowledge · Strategy & Planning

Break-Even Point · BEP

Break-Even Point

📂Strategy & Planning⏱2 min read📊Practical🔗6 related

What is the break-even point?

In one line
The Break-Even Point is the amount of revenue or sales volume at which revenue exactly equals total costs (fixed plus variable), so there is neither profit nor loss.
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⚡ Summary in 3 lines
  • The baseline where revenue equals total cost
  • The point where contribution margin recovers fixed costs
  • A common language for pricing, investment, and launch decisions

Once you have the break-even point, the language in the meeting room changes. "This deal is worth a try" becomes "We break even at 80,000 units a month, and sales forecasts 120,000, so we have a 33% cushion." The other side can then push back: "Doesn't that 120,000 include promotions?" In other words, BEP is not a tool for guessing the right number. It is a way to get optimists and pessimists arguing from the same table.

In practice, variations are used more often than the basic formula. With a profit target, add it to the numerator: (fixed costs + target profit) ÷ contribution margin per unit. Strip out non-cash costs such as depreciation and you get a cash-flow view, the 'cash break-even point'. The margin of safety ((expected sales − BEP) ÷ expected sales), which shows how far expected sales exceed BEP, is far more useful than a single BEP figure. With multiple products, you need to solve using the weighted-average contribution margin ratio under an assumed sales mix.

The boundaries need to be clear too. Contribution margin subtracts only variable costs, so it differs from gross profit, which subtracts the full cost of goods sold. BEP also differs from payback period, which asks 'when do we get our money back?' And fixed costs are not fixed forever. If labor costs step up with a switch to two shifts once volume passes 100,000 units a month, you need to redraw the BEP for each range.

The most common mistake is leaving out variable costs. If you calculate without card fees, promotional discounts, returns, and logistics, the BEP comes out 20–30% too low. Companies then expand capacity on that number and still lose money after hitting their volume target. Not allocating headquarters overhead has the same root: the business unit shows a profit while the company shows a loss. Conversely, raising prices alone to lower the BEP is also risky. The contribution margin rises, but if sales volume drops with it, actual profit gets worse.

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💡 In plain English
It’s like working out how many members a gym needs, with fixed costs due every month, before it turns a profit.
Why it matters in practice
It's the minimum financial language that lets managers make pricing, investment, and new-business decisions with numbers rather than gut feel, and a staple topic in finance training for non-finance leaders.
⚠️ Common misconceptions
It’s easy to think 'passing break-even means success,' but BEP is only the minimum line where profit hits zero. Add the target profit to fixed costs and calculate the 'sales volume needed to hit target profit,' and only then do you have a real business goal.
🧮 Formula
BEP sales = fixed costs ÷ (1 − variable cost ratio) / BEP volume = fixed costs ÷ (unit price − variable cost per unit)
For example, suppose running one public course session has fixed costs of KRW 3 million (≈ US$2,240) (instructor fees, venue rental, and so on), tuition is KRW 300,000 (≈ US$225) per person, and variable cost per person (materials, refreshments, etc.) is KRW 50,000 (≈ US$37). The contribution margin per unit is KRW 250,000, (≈ US$185) so the break-even headcount is KRW 3 million (≈ US$2,240) ÷ KRW 250,000 (≈ US$185) = 12 people. Profit begins with the 13th participant.
Origin and sources

A core concept of CVP (cost-volume-profit) analysis, which splits costs into fixed and variable to show how activity level relates to profit, the break-even point became a standard tool as management accounting took shape in the early 20th century. It is not the invention of any one person but a framework refined over many years in accounting and business studies.

Source · CVP (Cost-Volume-Profit) analysis in management accounting · View original
An example

Consider a hypothetical case. Company A, a food manufacturer with 120 employees and annual revenue of KRW 38 (≈ US$1) billion, had spent three months weighing a KRW 1.8 billion (≈ US$1,346,700) investment to add a new ready-meal (HMR) line. Sales pushed hard, saying "we'll definitely sell 120,000 units a month," while Finance opposed without any figures to back it up. In the end, the cost team restarted the discussion with a single break-even table.

  1. The cost team lead first regrouped the fixed costs: KRW 30 million (≈ US$22,400) a month in equipment depreciation, KRW 26 million (≈ US$19,500) in labor for four dedicated staff, and KRW 14 million (≈ US$10,500) in line maintenance, for monthly fixed costs of KRW 70 million (≈ US$52,400).
  2. The variable cost review exposed items the sales division had missed. After adding a 12% promotional discount, a 3% return rate, and refrigerated logistics costs, variable cost per unit rose from KRW 1,180 (≈ US$1) to KRW 1,520 (≈ US$1).
  3. At a selling price of KRW 2,400, (≈ US$2) the contribution margin per unit came to KRW 880, (≈ US$1) and the break-even volume worked out to about 80,000 units a month. The head of sales said, "That leaves plenty of room," but the cost team lead pointed out that "those 120,000 units assume the promotional price for the first six months after launch."
  4. At the regular price, the forecast came to 92,000 units a month, and the margin of safety fell from 33% to 13%. The team also found a step-cost structure: past 100,000 units a month, a switch to two shifts adds KRW 26 million (≈ US$19,500) in labor, so they drew a separate BEP for the expansion range.
  5. The management meeting scaled equipment down to 100,000 units a month, cutting investment to KRW 1.2 billion (≈ US$897,800) and monthly fixed costs to KRW 56 (≈ US$1) million, which brought BEP to 64,000 units a month. In month four after launch, it sold 71,000 units a month and turned a profit.
Related terms
Pricing StrategyHow to set the price of a product or service. Whether you anchor on cost, competition, or value determines profitability.ROI · Return on InvestmentA metric expressing, as a percentage, how much profit an investment returned relative to its cost (Return on Investment). It is the common language of every investment decision, from training to marketing.CAC · LTVCAC (Customer Acquisition Cost) is what it costs to win one customer; LTV (Lifetime Value) is the total value that customer brings over the relationship. The ratio between the two tells you how profitable the business is.Sales ForecastingEstimating future revenue from the pipeline and historical data, to judge whether targets will be met and how to allocate resources.Unit EconomicsAn analysis that calculates revenue and cost per customer or per unit of product, to confirm the business makes more money as it scales.Profit PlanA plan that first decides how much profit to make next year, then works backward to set revenue, cost, and SG&A targets that deliver it. It ties the sales plan and the expense budget into a single P&L structure.
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Last updated 13 Sep 2026 · Reviewed by John Kim

FAQ

A cost that stays constant even as sales (volume) grow is a fixed cost; one that rises in proportion to sales is a variable cost. Rent, salaried staff, and equipment are generally fixed; materials, sales commissions, and shipping are variable. In reality, some costs are semi-variable, mixing both, so split them using a reasonable standard.
The selling price minus variable cost per unit: the share each unit sold 'contributes' to recovering fixed costs and to profit. The point where contribution margin covers all fixed costs is the break-even point, which makes it the heart of any BEP calculation.
There are three ways to raise the contribution margin: cut fixed costs, raise prices, or lower variable cost per unit. For example, replacing a fixed lease with a sales-linked fee turns a fixed cost into a variable one. That lowers the BEP, but at the price of a thinner margin when sales grow.
The break-even point looks at the revenue or sales volume where a loss turns into a profit; ROI looks at the ratio of profit to the amount invested. BEP is the baseline at the business and pricing design stage, while ROI evaluates investment performance before or after the fact. The two are often used together.