Break-even analysis
Break-even is the line where sales exactly cover costs, with no profit and no loss. Find it and a vague worry about whether the business works becomes a single number you can manage toward. The whole method rests on one division: fixed costs over contribution margin. Here is how to run it, with a worked example.
The formula in one line
The break-even point is the fixed costs you have to cover, divided by how much each sale contributes toward covering them. That contribution is your selling price minus the variable cost of one unit. To run the division on your own figures, our free break-even calculator does it for you.
The two break-even formulas are the same idea in different units. Use the unit version when you sell one main product, and the revenue version, which divides by the contribution margin as a ratio of price, when you sell a mix and cannot speak in single units.
Five steps to your break-even point
Separate fixed costs from variable costs
Fixed costs stay roughly the same whether you sell ten units or a thousand: rent, software, salaries, insurance. Variable costs move with each sale: materials, payment fees, shipping, packaging. Every cost goes in one bucket or the other, and getting the split right is most of the work.
Find your contribution margin per unit
Take your selling price and subtract the variable cost of one unit. What is left is the contribution margin: the part of each sale that goes toward covering fixed costs. Until fixed costs are fully covered, every unit's contribution is paying them down, not making profit.
Divide fixed costs by the contribution margin
Fixed costs divided by contribution margin per unit gives the number of units you must sell to break even. Above that count you are in profit, below it you are at a loss. This single division is the whole analysis.
Convert units into revenue
Multiply the break-even unit count by your price to get break-even revenue, the sales figure that leaves you exactly level. If you sell many products, use the contribution margin ratio instead and divide fixed costs by that ratio to get the revenue directly.
Add your target profit and recheck
To find the sales needed for a specific profit, add that profit to fixed costs before dividing. Then stress-test it: a price cut or a fee increase changes the contribution margin, which moves the break-even point more than people expect.
A worked example
One product, one month
A product sells for $40.00. Its variable costs are $9.00 in materials, $3.00 in payment and platform fees, and $4.00 in shipping and packaging, which is $16.00 per unit. Contribution margin is therefore $24.00, or 60 percent of the price.
Fixed costs for the month are $6,000: rent, software, and a part-time wage that do not move with sales. Break-even in units is $6,000 divided by $24.00, which is 250 units. At $40.00 each, that is $10,000 of break-even revenue.
Now add a goal. To clear $3,000 of profit, cover $9,000 instead of $6,000, so divide $9,000 by $24.00 to get 375 units. The target only adds 125 units because each one contributes $24.00.
Watch what a small change does. Drop the price to $36.00 and contribution margin falls to $20.00, pushing break-even from 250 units to 300. A ten percent price cut demanded a fifth more sales just to stand still.
- Selling price per unit
- $40.00
- Variable cost per unit
- $16.00
- Contribution margin
- $24.00
- Monthly fixed costs
- $6,000
- Break-even units
- 250
- Break-even revenue
- $10,000
- Contribution margin ratio
- 60%
- Units for $3,000 profit
- 375
What break-even actually tells you
The break-even point is not a goal, it is a floor. It is the sales level below which you lose money, which makes it the clearest way to size any decision that adds a fixed cost. A new hire, a bigger lease, a software tier: each one raises fixed costs, so each one raises the number of sales you need before you are level again.
Price changes move it most
Because break-even divides by contribution margin, a change in price or variable cost swings the result more than a change in fixed costs of the same size.
It sizes every fixed-cost decision
Before you take on a new monthly cost, divide it by your contribution margin. That is how many extra sales the decision quietly requires.
Keeping the inputs honest
The division is trivial. The hard part is the cost split behind it, and a single misfiled cost throws the whole break-even point off. A fee that moves with sales but gets treated as fixed will flatter your contribution margin and tell you that you break even sooner than you really do.
Where TrueProfit helps
TrueProfit keeps your costs sorted into fixed and variable categories and tracks the price and cost behind each product, so your contribution margin stays current as fees and prices change. From there the break-even point is just a read, not a spreadsheet you rebuild every month. It is free to start, with Pro at $19 a month and Business at $49 for more channels and deeper reporting.
Frequently asked questions
What is the break-even formula?
Break-even point in units equals fixed costs divided by the contribution margin per unit, where contribution margin is the selling price minus the variable cost of one unit. To get break-even in revenue, multiply that unit count by the price, or divide fixed costs by the contribution margin ratio when you sell a mix of products.
What is a contribution margin?
Contribution margin is the money left from a single sale after its own variable costs come out, before any fixed costs are considered. It is the amount each sale contributes toward covering the fixed costs, and once those are covered, toward profit. You can express it per unit in dollars or as a ratio, which is contribution margin divided by price.
What is the difference between fixed and variable costs?
Fixed costs stay roughly constant regardless of how much you sell, such as rent, salaries, insurance, and most software subscriptions. Variable costs rise and fall with each sale, such as materials, payment processing fees, shipping, and packaging. The cleaner you split them, the more accurate your break-even point. A cost that is partly both, like a phone plan with usage charges, gets split across the two.
Why does break-even analysis matter?
It turns a vague worry about whether the business is working into a specific number you can manage toward. It tells you the minimum you must sell to avoid a loss, how a price or cost change shifts that line, and how many sales a new fixed cost like a hire or a lease actually requires. It is also the honest test that replaces chasing an industry margin benchmark.
How do I lower my break-even point?
Three levers move it. Lower your fixed costs so there is less to cover. Raise your price, which increases the contribution margin per unit. Or lower the variable cost per unit, which does the same. Because the break-even point is fixed costs divided by contribution margin, a small improvement in contribution margin can drop the required sales count noticeably.
Know your floor, then clear it
TrueProfit keeps fixed and variable costs separated and your contribution margin current, so your break-even point is always one glance away. Free to start.
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