How many units — or dollars in revenue — does it take until your business covers all its costs? Know the number before you commit.
Your break-even point is the number of units you need to sell each month just to cover all your costs — fixed and variable. Below this number, you're losing money. Above it, every additional unit sold generates pure profit at your contribution margin rate.
Fixed costs are expenses that don't change with volume — rent, salaries, software subscriptions, insurance. Variable costs move with each unit sold — materials, packaging, shipping, sales commissions. The difference between your selling price and variable cost is your contribution margin: what each unit actually contributes toward covering fixed costs and then generating profit.
Once you know your break-even, you can set a realistic sales target — typically 20–30% above break-even — that generates meaningful profit rather than just covering costs. That's where business planning actually starts.
Contribution margin is what's left after you subtract variable costs from your selling price. It's the amount each unit "contributes" toward covering fixed costs first, and then profit. A contribution margin of $30 on a $50 product means 60% of every sale goes toward overhead and profit — a healthy ratio for most product businesses.
The distinction drives your entire pricing strategy. If your business has very high fixed costs and low variable costs (like a SaaS company), your break-even is high but profit scales fast once you clear it. If variable costs are high (like a services business with contractor labor), your break-even is lower but profit grows more slowly with scale.
Most businesses set prices based on what competitors charge or what "feels right." A CFO starts with the required contribution margin — working backward from the break-even point and desired profit. If your fixed costs are $10,000/month and you can realistically sell 500 units, you need a contribution margin of at least $20/unit just to break even. Add a target profit and you have a defensible price floor.
Break-even assumes linear costs and constant pricing, which isn't always realistic. Bulk discounts change variable costs. Tiered pricing changes contribution margin. Seasonality changes volume. Use break-even as a baseline sanity check, not a precise forecast — but always do it before you commit capital to a new product, store, or market.