You've been open for three months. Customers are coming in. The register is ringing. But your bank account is smaller than the day you unlocked the door.
It doesn't make sense β you're selling things. So why are you losing money?
Almost every time, the answer is the same: you haven't hit your break-even point yet. What's more alarming: most business owners never run that number before they open.
This guide walks through the break-even calculation step by step, with a real example you can follow along with. By the end, you'll know exactly how many units to sell. You'll also know how much revenue you need before your business turns a profit.
Key Takeaways
Break-even point = Fixed Costs Γ· Contribution Margin Per Unit. A coffee shop with $7,500/month in fixed costs and $3.50 contribution margin per cup needs to sell 2,143 coffees β $10,715 in monthly revenue β before profit starts.
- What most owners get wrong: reaching break-even means profit is exactly $0, not that you're in the clear β and most new businesses spend months selling without ever running this number before opening.
- The Daily Overhead Rule: divide monthly fixed costs by 30 to get your daily floor β $7,500 Γ· 30 = $250/day your business must earn before a single dollar of profit exists.
- Use the units formula if you sell one product; switch to the revenue formula (Fixed Costs Γ· Contribution Margin Ratio) if you sell multiple products at different prices β worth running both before locking in 2026 pricing.
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What Is a Break-Even Point?
Break-even point
The number of units you must sell β or dollars you must earn β for total revenue to exactly equal total costs. At break-even, your profit is $0. Not a gain, not a loss.
Think about it like filling a bucket with a slow leak. Each month, fixed costs drain the bucket. Rent, wages, insurance β all of it. Every sale pours water back in. The break-even point is the moment you've poured back exactly as much as you've lost. Everything past that point is profit.
Most new owners find out the hard way. They sell for months and still have nothing to show for it. Running the math before you open changes that.
The break-even point gives you the minimum sales target your business needs to survive. Below it, you're losing money on every day that passes. Above it, you're building profit.
Fixed Costs vs. Variable Costs
To find your break-even point, split your costs into two groups.
Fixed costs
Expenses that stay the same every month, no matter how much you sell. For example: if you pay $3,500/month in rent, you owe that whether you sell 10 units or 10,000.
Common fixed costs: rent, staff salaries, insurance premiums, loan or equipment payments, software subscriptions, accounting retainers.
Variable costs
Expenses that change directly with each unit you produce or sell. For example: if every coffee you make requires $1.50 in beans, milk, and supplies, that $1.50 cost scales up with every cup.
Common variable costs: raw materials, packaging, hourly production labor, shipping, per-transaction processing fees.
| Cost Type | Changes with sales? | Examples |
|---|---|---|
| Fixed | No | Rent, salaries, insurance |
| Variable | Yes β per unit | Materials, packaging, hourly labor |
| Semi-variable | Partially | Utilities, part-time staff |
Some costs have both a fixed part and a usage part. Think electricity or a part-time worker. These are called semi-variable costs. For your first break-even analysis, add them to fixed costs entirely. It builds in a small safety buffer and keeps the math clean.
The cleaner your cost separation, the more accurate your break-even number will be.
The Break-Even Formula
Two versions of the formula give the same answer in different units.
Break-Even in Units: Break-Even Units = Fixed Costs Γ· Contribution Margin Per Unit Contribution Margin Per Unit = Price Per Unit β Variable Cost Per Unit
Break-Even in Revenue ($): Break-Even Revenue = Fixed Costs Γ· Contribution Margin Ratio Contribution Margin Ratio = Contribution Margin Per Unit Γ· Price Per Unit
Contribution margin is the engine of the whole formula. It's the part of each sale that pays down fixed costs. Once those are covered, it builds profit. Each dollar of contribution margin does two things. First, it pays down overhead. Second, once overhead is paid off, it becomes profit.
Use the units formula when you sell a single product. Use the revenue formula when you sell more than one product at different prices.
Step-by-Step Example: A Coffee Shop
Here's a full walkthrough using a small coffee shop.
The fixed costs (monthly):
- Rent: $3,500
- Staff salaries: $3,200
- Insurance, utilities, software: $800
- Total fixed costs: $7,500/month
The product:
- Price per coffee: $5.00
- Cost of beans, milk, cup, and lid: $1.50
- Variable cost per unit: $1.50
Step 1: Calculate the contribution margin
Contribution Margin = Price Per Unit β Variable Cost Per Unit $5.00 β $1.50 = $3.50 per coffee
Every coffee sold contributes $3.50 toward fixed costs β and toward profit once those costs are covered.
Step 2: Calculate break-even in units
Break-Even Units = Fixed Costs Γ· Contribution Margin $7,500 Γ· $3.50 = 2,143 coffees per month
2,143 coffees to break even. At cup 2,144, every $3.50 is profit.
Step 3: Calculate break-even in revenue
Break-Even Revenue = Break-Even Units Γ Price Per Unit 2,143 Γ $5.00 = $10,715/month to break even
What this means: The coffee shop needs to sell 2,143 coffees a month β about 71 per day β before it makes a single dollar of profit. That's a concrete target. Not a guess β a real number the owner can check every morning.
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The Mental Shortcut: The Daily Overhead Rule
You don't need a spreadsheet to gut-check your business every morning.
The Daily Overhead Rule: Monthly Fixed Costs Γ· 30 = Your daily overhead floor
Examples: $3,000/month fixed costs β $100/day minimum before profit $6,000/month fixed costs β $200/day minimum before profit $15,000/month fixed costs β $500/day minimum before profit
Use this every morning: Did yesterday's revenue cover yesterday's share of fixed costs?
This shortcut skips variable costs and contribution margin. It's not exact. But it gives you a daily number to check against. The coffee shop with $7,500 in fixed costs has a daily overhead floor of $250. Bring in more than $250? You're on pace. Fall short? You're accumulating a deficit you'll need to make up.
What Break-Even Doesn't Tell You
Break-even analysis is one of the most useful tools in business finance. It's also one of the most misread. Here are four limits worth knowing.
It assumes your price stays fixed. If you discount to drive volume, your contribution margin shrinks and your break-even point moves up. Selling more at a lower price can push you further from profit, not closer.
It doesn't account for time. Break-even shows how many units to sell β not how long it will take. A business that needs 2,000 units to break even and sells 200 a month is 10 months from profitability. The analysis gives you the target; a sales timeline tells you if you can survive long enough to reach it.
Accounting break-even β cash flow break-even. Covering your costs on paper doesn't mean cash in the bank. If customers pay on 30-day terms, or you hold inventory, you can break even on paper and still run out of cash.
It doesn't include taxes or owner pay. A business that breaks even on paper still hasn't paid taxes or paid the owner. Add your target profit and your salary to the analysis first. Only then can you call the model viable.
| What break-even tells you | What it doesn't tell you |
|---|---|
| Units or revenue needed to cover costs | How long it takes to reach that volume |
| Whether your pricing model works | Whether you'll have cash to survive until then |
| The minimum sales target | Your take-home pay or tax liability |
| How changes in price or cost affect viability | Whether the market will buy at that volume |
The break-even point is the floor, not the goal. Your actual target is break-even plus your desired profit margin.
4 Ways to Lower Your Break-Even Point
Once you know your number, the next question is: how do I bring it down? There are only three cost levers β and one strategic one.
1. Cut fixed costs
Every dollar you cut from fixed costs lowers your break-even right away. Push back on rent. Cut software you don't use. Move to a shared workspace. A $500/month reduction in fixed costs is more impactful than a $500 increase in revenue β it improves the floor, not just the ceiling.
2. Raise your price
A higher price means more contribution margin per unit. That means you need to sell fewer units to break even. A $1 price increase on a $5 product adds $1 to contribution margin without changing your fixed costs. Test different prices before you assume you've hit the ceiling. Most small businesses charge too little.
3. Reduce variable costs
Ask suppliers for better prices. Cut material waste. Try cheaper packaging. Every $0.10 you cut from variable cost adds $0.10 to your margin. Across thousands of units, that adds up fast.
4. Add a higher-margin product
Add a product with a higher margin ratio and your overall break-even drops across the whole business. A coffee shop that adds pastries at a 70% margin improves its break-even faster than one that just pushes more coffee.
Together, these four levers give you control over a number most business owners treat as fixed. It isn't fixed. Every pricing and cost decision you make shifts that number.
What This Means for Your Business
Break-even analysis is the first honest look at whether your business model can actually work. It cuts through the optimism β the 'just grow revenue' thinking. It shows you the exact minimum your business must hit each month to survive.
Run it before you sign a lease. Run it before you hire a full-time employee. Run it before you cut prices to win a customer. Each of those decisions changes your cost structure. And that changes the number you need to hit to stay in business.
The SBA estimates it costs about $30,000 on average to start a business. Knowing your break-even before that money runs out is the difference between a business that lasts and one that doesn't.
The coffee shop owner who knows they need 71 coffees a day has a target. The one who doesn't is guessing.
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Common Questions
Sources & Methodology
Break-even formulas follow standard cost accounting, as documented by the U.S. Small Business Administration. Fixed and variable cost categories follow generally accepted accounting principles (GAAP). The coffee shop numbers are illustrative and based on typical urban small business costs. The $30,000 average startup cost figure is sourced from the SBA's business planning guidance.
Sources: U.S. Small Business Administration β Break-Even Point, U.S. Small Business Administration β Calculate Your Startup Costs, SCORE β Break-Even Analysis Template.
Disclaimer: Results are for educational and informational purposes only. FiscalCalc is not a licensed financial advisor, mortgage broker, or tax professional. Consult a qualified professional before making major financial decisions.