What is break-even and why does it matter?
Break-even is the revenue level at which your total costs exactly equal your total revenue — you are making neither a profit nor a loss. Understanding your break-even point is one of the most important commercial calculations for any UK SME owner because it answers the most fundamental business question: how much do I need to sell before this business is viable?
Every business decision flows from the break-even calculation. Pricing, headcount, marketing spend, new product launches — all need to be evaluated against their impact on break-even.
Break-even formula — UK
Fixed costs vs variable costs — the key distinction
For the break-even calculation, you need to separate your costs into two types:
- Fixed costs — costs that stay the same regardless of how much you sell. Rent, salaries, insurance, software subscriptions, loan repayments. These are the costs you pay even if revenue is zero.
- Variable costs — costs that change with sales volume. Cost of goods, delivery, packaging, commission. These are already captured in your gross margin calculation.
Break-even analysis uses only fixed costs — because variable costs are already accounted for in the gross margin.
How to reduce your break-even point
There are three ways to lower your break-even and make the business viable at a lower revenue level:
- Increase gross margin — the most powerful lever. A 5% margin improvement on a business with £20,000 monthly fixed costs lowers break-even by over £10,000/month.
- Reduce fixed costs — defer costs until revenue justifies them. Work from home initially, use freelancers before hiring, negotiate lower rents. Be ruthless about overheads in the early stages.
- Increase average order value — fewer, higher-value sales means each transaction contributes more towards covering fixed costs.