Break-Even Analysis for Small Businesses
Break-even analysis tells you the minimum amount you need to sell to cover all costs — the point at which you stop losing money and start making it. It's one of the most useful tools in business planning because it connects your cost structure to your pricing and volume decisions in one clear number.
Fixed Costs vs Variable Costs
Break-even analysis requires separating your costs into two buckets:
- Fixed costs — costs that don't change with sales volume: rent, salaries, insurance, software subscriptions, loan payments. You owe these whether you sell 1 unit or 1,000.
- Variable costs — costs that scale with each unit sold: materials, packaging, payment processor fees, direct labor per unit, shipping. These only occur when you make a sale.
Some costs are semi-variable — utilities have a fixed base plus usage charges, sales commissions are zero with no sales but scale with revenue. For break-even purposes, split these by their fixed and variable components or categorize them conservatively as fixed.
Most businesses find that fixed costs represent 50–70% of total costs at their current scale. Understanding this ratio matters: a high fixed-cost structure means high operating leverage — above break-even, each additional dollar of revenue flows through to profit very efficiently; below break-even, losses mount quickly.
Break-Even Formulas
There are two versions of break-even depending on what you're solving for:
Break-even in units: Fixed Costs ÷ (Price per Unit − Variable Cost per Unit). If your fixed costs are $8,000/month, you sell at $50, and variable cost is $20, then: $8,000 ÷ ($50 − $20) = 267 units/month to break even.
Break-even in revenue: Fixed Costs ÷ Contribution Margin Ratio. The contribution margin ratio is (Price − Variable Cost) ÷ Price. At $50 price and $20 variable cost, the ratio is 0.60. Break-even revenue = $8,000 ÷ 0.60 = $13,333/month.
These two formulas give you the same result expressed differently. Units is useful for product businesses. Revenue is useful for service businesses where units aren't meaningful.
Calculator
Break-Even Revenue Calculator
Enter your fixed costs, contribution margin, and revenue to find your exact break-even point — and how far above it you currently are.
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Contribution Margin Calculator
Calculate your contribution margin per unit and ratio — the key input to any break-even analysis.
Break-Even Revenue for Service Businesses
Service businesses don't sell discrete units — they sell time or outcomes. The break-even concept still applies but the inputs are different. Your fixed costs are mostly salaries, rent, and software. Your variable costs per engagement might be minimal. The key question becomes: how many client engagements, billed at what rate, cover your monthly overhead?
Example: A 3-person agency with $18,000/month in fixed costs and an average project margin of 65% needs $27,692 in monthly billings to break even ($18,000 ÷ 0.65). At an average project size of $3,500, that's about 8 projects per month. Does your current pipeline support that? Break-even converts an abstract overhead number into a concrete pipeline target.
Break-Even per Transaction for Payment Processors
There's a different kind of break-even specific to payment processing: the minimum transaction size at which your payment processor fee doesn't wipe out your margin. This matters most for low-price products where the fixed per-transaction fee ($0.30 for Stripe) represents a meaningful percentage of revenue.
If you sell a $3 digital product via Stripe, the fee is $0.39 (13% effective rate). At a 40% gross margin, you net just $0.81 — not enough to cover any overhead. Understanding the break-even transaction size for your margin target helps set minimum order values.
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Break-Even Transaction Size Calculator
Find the minimum transaction amount that covers your payment processing fee at your target margin — essential for setting minimum order values.
Using Break-Even for Business Decisions
Break-even analysis answers three critical decisions: (1) Pricing — at any given price, how many units do you need to sell? If the volume required is unrealistic for your market, your price is too low. (2) New investments — before hiring someone or adding overhead, ask: what additional revenue is needed to break even on this cost? A $60,000 hire adds $81,000 in total cost; at a 50% margin, you need $162,000 in incremental revenue to justify it. (3) Product viability — some products simply can't be priced high enough to achieve break-even at realistic volume. Better to know before launch.
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Startup Cost Calculator
Build your full startup cost picture — then use break-even analysis to find the revenue needed to recover your initial investment.
FAQ
What is the margin of safety?
Margin of safety is the difference between your actual revenue and break-even revenue, expressed as a percentage. If you're doing $20,000/month and break-even is $14,000, your margin of safety is 30%. This tells you how much revenue can drop before you start losing money — it's your financial buffer.
Does break-even account for taxes?
Standard break-even calculations are pre-tax — they find the point where operating profit is zero. To break even after tax, your before-tax profit needs to be large enough that post-tax it's still positive. If your effective tax rate is 25%, the after-tax break-even revenue is higher than the pre-tax calculation suggests.
How does break-even change when I add a new product?
Adding a new product doesn't necessarily change fixed costs if you have spare capacity. In that case the incremental break-even is very low — you only need to cover the variable costs of the new product. The fixed costs are already covered by existing products. This is why adding products to an existing operation is often highly profitable at the margin.
Find your break-even point right now. Open the Break-Even Revenue Calculator.