How to Calculate Break-Even for Your Small Business — With Real Examples

Most small business owners have a rough feeling for whether they are making money. The break-even point replaces that feeling with a specific, actionable number: exactly how many sales you need in a given period for revenue to cover all your costs. Every sale after that point generates profit. Every sale before it operates at a loss.

It sounds simple — because it is. But the percentage of small businesses operating without a calculated break-even point is surprisingly high, and the consequences are predictable: underpricing, unrealistic sales targets, and cash flow surprises. This guide covers the formula, the concepts behind it, and three worked examples across different business types.

The Three Numbers You Need

Break-even analysis requires three inputs. Get these right and the rest is arithmetic.

Fixed Costs

These are expenses that do not change based on how much you sell. Rent, insurance, software subscriptions, loan repayments, minimum staffing costs, and your own salary (if you draw one) are all fixed costs. They exist whether you sell one unit or one thousand. Be thorough here — underestimating fixed costs is the most common mistake in break-even analysis. Look at 12 months of expenses rather than just last month to capture irregular costs like annual insurance renewals, equipment maintenance, or professional fees.

Variable Costs Per Unit

These are costs that increase with each sale — raw materials, packaging, payment processing fees, per-unit labour, shipping. If you make a candle that costs R18 in wax, wick, and packaging, R18 is your variable cost per candle. Payment processing fees (typically 2–3.5% of the transaction value) are easy to forget but add up quickly at volume.

Selling Price Per Unit

The price you charge for one unit of your product or service. If you sell candles at R65 each, that is your selling price. If you charge R800 for a 2-hour consulting session, that is your unit price.

The Break-Even Formula

Once you have the three inputs, the formula is:

You can also calculate break-even in revenue (sales dollars/rands) rather than units:

Worked Example 1 — Retail Product (Candles)

Sarah makes and sells handmade soy candles. Here are her monthly numbers:

• Variable cost per candle: R22 (wax R12, wick R2, jar R5, label R1, payment processing R2)
• Selling price: R65 per candle
• Contribution margin: R65 − R22 = R43 per candle
• Break-even point: R12,200 ÷ R43 = 284 candles per month
• Break-even revenue: 284 × R65 = R18,460 per month

Sarah now has a clear target: she needs to sell 284 candles per month before she makes any profit. If she currently sells 180, she knows she needs to increase sales by 58% or reduce costs. If she raises her price from R65 to R75 (while variable costs stay at R22), her contribution margin increases to R53 and her break-even drops to 230 candles — a 19% reduction in required sales volume from a 15% price increase.

Worked Example 2 — Service Business (Consulting)

Marcus runs a one-person marketing consulting practice. His monthly fixed costs:

• Home office (allocated portion): R1,200
• Software subscriptions (CRM, design tools): R800
• Professional insurance: R500
• His salary: R25,000
• Total fixed costs: R27,500/month

His variable costs per project: R1,500 (subcontractor hours for tasks he outsources + printing + delivery).

His average project fee: R8,500.

Contribution margin: R8,500 − R1,500 = R7,000 per project.

Break-even: R27,500 ÷ R7,000 = 3.93 projects per month — so 4 projects per month to break even.

This tells Marcus he needs 4 clients per month at this pricing structure. If he can get 6 per month, profit per month is (6 − 3.93) × R7,000 = R14,490 before tax. That is his decision framework: is getting 6 clients per month consistently achievable? If not, he needs to either raise prices or reduce fixed costs.

Worked Example 3 — Food Business (Coffee Shop)

A small coffee shop has the following monthly fixed costs: rent R15,000, staff (2 baristas) R18,000, equipment repayments R2,500, insurance and licences R1,500, utilities R2,000 = R39,000/month.

Average sale: R42 (mix of coffees at R35–R55 and snacks). Variable cost per transaction: R12 (coffee beans, milk, packaging, card fee). Contribution margin: R42 − R12 = R30 per transaction.

Break-even: R39,000 ÷ R30 = 1,300 transactions per month — about 43 transactions per day over 30 days, or 52 per day over 25 trading days.

Is 52 transactions per day realistic for a small coffee shop? That depends entirely on location and foot traffic. But this number allows the owner to evaluate the business model before signing a lease — rather than discovering the problem after committing to 3 years of fixed costs.

What to Do When Your Break-Even Is Too High

If your break-even calculation produces a number that seems out of reach given realistic sales expectations, you have three levers:

Raise your price

Pricing is the fastest lever. A 10% price increase with no change in costs can reduce your required sales volume by 20–30%, depending on your current margins. Many small business owners underprice because they are worried about losing customers — but research consistently shows that customers are more price-sensitive in the owner's imagination than in reality, particularly for quality products and services with clear differentiation.

Reduce fixed costs

Review every line item in your fixed costs. Can the studio be replaced with a home workspace? Are there software subscriptions you are not using? Could you reduce your own salary temporarily while building the business? Fixed cost reduction directly lowers the break-even point.

Reduce variable costs per unit

Negotiate with suppliers, find alternative materials, consolidate shipping, or renegotiate payment processing fees. Even small reductions in variable cost per unit compound significantly at volume. A R2 reduction in variable cost per unit at a break-even of 300 units means the break-even drops by roughly 14% (assuming contribution margin was R30 — now R32, so 39,000/32 = 1,219 vs 1,300).

Beyond Break-Even — Profit Planning

Break-even tells you the minimum viable number of sales. The more useful planning tool is the profit target calculation:

Units for Target Profit = (Fixed Costs + Desired Profit) ÷ Contribution Margin

If Sarah wants R5,000 per month in profit above her salary: (R12,200 + R5,000) ÷ R43 = 400 candles per month. She now has a sales goal, not just a survival number. The distinction between "break-even thinking" and "profit target thinking" is the difference between running a business and building one.

Frequently Asked Questions

What is the break-even point formula?

Break-Even Point (Units) = Fixed Costs ÷ (Selling Price − Variable Cost Per Unit). The denominator is called the contribution margin — the amount each sale contributes toward covering fixed costs after variable costs are deducted. Once total contribution margins from all sales equal total fixed costs, you have broken even.

What are fixed costs vs variable costs?

Fixed costs stay the same regardless of how much you sell — rent, insurance, loan repayments, minimum staffing. Variable costs increase with each sale — raw materials, packaging, shipping, payment processing fees. Correctly classifying costs is essential for accurate break-even analysis. Some costs are semi-variable (like electricity — fixed base charge plus variable usage) and may need to be split between the two categories.

How do I lower my break-even point?

Three ways: raise your selling price (increases contribution margin), reduce fixed costs (lowers the numerator), or reduce variable costs per unit (also increases contribution margin). Raising prices is usually the fastest and most impactful lever — even a modest price increase can significantly reduce the number of sales required to break even.

Can break-even analysis be used for service businesses?

Yes — though the "unit" is usually a project, client, hour, or session rather than a physical product. A consulting firm might measure break-even in number of projects per month. A personal trainer measures it in sessions. The formula works the same — fixed monthly costs divided by contribution margin per unit of service sold.

What is a good break-even point for a small business?

There is no universal "good" number — it depends entirely on your industry, pricing, and market. What matters is whether your break-even is achievable given realistic sales expectations for your location and marketing capacity. If your break-even requires more customers than your market can realistically provide, that is a signal to revisit pricing or costs before committing to the business model.