How to Calculate Your Break-Even Point

Every business has a point where revenue exactly covers costs — no profit, no loss. This is your break-even point, and knowing it is one of the most useful pieces of financial information you can have. It tells you the minimum you need to achieve to keep your business afloat, and it provides a foundation for pricing decisions, cost management, and growth planning.

Yet many business owners have never calculated their break-even point. They operate on intuition, hoping their revenue is "enough" without knowing precisely what "enough" means. Understanding break-even analysis changes that.

What is the break-even point?

The break-even point is the level of sales at which your total revenue equals your total costs. Below this point, you are making a loss. Above it, you are making a profit.

It can be expressed as:

Units sold — How many units you need to sell to break even
Revenue — How much money you need to bring in to break even
Time — How long it takes to reach break-even in a given period

Understanding your costs

Before you can calculate break-even, you need to understand your cost structure. Costs fall into two categories:

Fixed costs

Fixed costs remain the same regardless of how much you sell. They are incurred whether you sell one unit or ten thousand. Common fixed costs include:

Rent or lease payments
Insurance premiums
Salaries (for staff not directly tied to production)
Software subscriptions
Loan repayments
Accounting and legal fees
Depreciation on equipment

Fixed costs are your baseline — the amount you must cover before any profit is possible.

Variable costs

Variable costs change in direct proportion to your sales volume. The more you sell, the higher these costs. Common variable costs include:

Raw materials and inventory
Direct labour (production staff, freelancers paid per unit)
Packaging and shipping
Sales commissions
Payment processing fees
Consumable supplies used in production

Variable costs are expressed as a cost per unit — how much it costs to produce or deliver one additional unit of your product or service.

Semi-variable costs

Some costs have both fixed and variable components. A phone bill might have a fixed monthly charge plus per-minute charges. Sales team compensation might include a fixed salary plus variable commission. For break-even purposes, split these into their fixed and variable components.

The break-even formula

Break-even in units

Break-even units = Fixed costs / (Selling price per unit - Variable cost per unit)

The denominator — selling price minus variable cost — is called the contribution margin per unit. It represents how much each sale contributes toward covering your fixed costs.

Example:

Fixed costs: 5,000 per month
Selling price: 50 per unit
Variable cost: 20 per unit
Contribution margin: 50 - 20 = 30

Break-even = 5,000 / 30 = 167 units per month

You need to sell 167 units per month to cover all your costs. Unit 168 is where profit begins.

Break-even in revenue

Break-even revenue = Fixed costs / Contribution margin ratio

Where contribution margin ratio = (Selling price - Variable cost) / Selling price

Using the same example:

Contribution margin ratio = 30 / 50 = 0.60 (or 60%)
Break-even revenue = 5,000 / 0.60 = 8,333

You need to generate 8,333 in monthly revenue to break even.

Break-even with multiple products

Most businesses sell more than one product or service at different prices and margins. In this case, calculate a weighted average contribution margin based on your product mix:

Determine the contribution margin for each product
Estimate the sales mix (percentage of total sales for each product)
Calculate the weighted average contribution margin
Use this in the standard break-even formula

Example with two products:

Product A: 40 price, 15 variable cost, 25 contribution, 60% of sales
Product B: 80 price, 45 variable cost, 35 contribution, 40% of sales
Weighted average contribution: (25 x 0.60) + (35 x 0.40) = 15 + 14 = 29
With 5,000 fixed costs: break-even = 5,000 / 29 = 173 units

Using break-even analysis

Pricing decisions

Break-even analysis shows the direct relationship between price and the volume needed to cover costs. If you raise your price:

Your contribution margin per unit increases
You need fewer sales to break even
But higher prices might reduce demand

If you lower your price:

Your contribution margin decreases
You need more sales to break even
But lower prices might attract more customers

Running break-even calculations at different price points helps you understand these trade-offs and choose a pricing strategy that balances volume and margin.

Cost management

Break-even analysis highlights the impact of your cost structure. You can see:

How much reducing fixed costs would lower your break-even point
How much reducing variable costs per unit would increase your contribution margin
Which cost reductions would have the biggest impact on profitability

A business with high fixed costs needs more revenue to break even, but generates more profit once it passes that point. A business with high variable costs has a lower break-even point but thinner margins on each sale.

New product or service launches

Before launching a new product, calculate its break-even point. This tells you how many units you need to sell to justify the investment. If the break-even volume seems unrealistically high given your market, you may need to reconsider the pricing, the cost structure, or whether to launch at all.

Scenario planning

Run break-even calculations under different scenarios:

What if raw material costs increase by 10 percent?
What if you hire an additional staff member (increasing fixed costs)?
What if you offer a 15 percent discount to drive volume?
What if a competitor forces you to lower prices?

This kind of analysis helps you prepare for changes and make informed decisions rather than reacting to them.

Investment decisions

When considering a capital investment — new equipment, a larger premises, a marketing campaign — break-even analysis shows how much additional revenue you need to justify the cost. If the investment increases your fixed costs by 2,000 per month, you need enough additional contribution margin to cover that 2,000 before the investment starts paying off.

Limitations of break-even analysis

Assumptions of linearity

Break-even analysis assumes that costs and revenue change linearly with volume. In reality, variable costs per unit might decrease at higher volumes (bulk discounts) or increase (overtime labour). Revenue per unit might change as you offer volume discounts. These non-linearities make break-even a useful approximation rather than a precise prediction.

Fixed costs are not truly fixed

Over longer periods, fixed costs can change. Rent can increase, insurance premiums can rise, and as you grow, you may need to add fixed costs (new hires, larger premises). Break-even analysis is most reliable over shorter planning horizons.

Market factors

Break-even tells you how much you need to sell, but it does not tell you whether the market will buy that much. A low break-even point is meaningless if there is insufficient demand for your product. Always consider break-even alongside market research and demand forecasting.

Product mix changes

If your product mix shifts toward lower-margin products, your weighted average contribution margin changes and your break-even point rises — even if total unit sales remain the same.

Tracking break-even with your accounting software

Your accounting software provides the data you need for break-even analysis:

Fixed costs — Sum your overhead and fixed expense accounts
Variable costs — Track direct costs per unit or as a percentage of revenue
Revenue — Your income by product or service line
Contribution margin — Revenue minus variable costs

Reviewing these numbers monthly helps you monitor whether you are above or below break-even and how far you are from your target.

Relentify's accounting platform provides detailed reporting by product and project, making it straightforward to track the cost and revenue data needed for ongoing break-even analysis.

Calculate yours today

Break-even analysis is not a one-time exercise. Calculate your break-even point now, then revisit it whenever your costs, prices, or product mix change. It is a simple but powerful tool that turns financial guesswork into informed decision-making.

Knowing your break-even point does not guarantee profitability — but not knowing it guarantees that you are operating in the dark.