Understanding when a business will break even — the point at which revenue covers all costs and the business stops making a loss — is one of the most fundamental pieces of financial analysis any founder needs to do. It provides a concrete target to plan around and a baseline for evaluating whether the financial model of a business is viable before significant resources are committed.

The break-even point is the level of revenue or sales volume at which total income exactly equals total costs — fixed and variable — leaving neither a profit nor a loss. To calculate it, a business needs to know its fixed costs, its variable cost per unit or transaction, and its selling price or revenue per unit. The result tells the founder how much the business needs to sell before it moves into profitability, which directly informs pricing, sales targets, and hiring decisions.

Break-even analysis is a starting point, not an end goal — most businesses need to operate meaningfully above break-even to generate the returns that justify the founder's time and investment. It is also a dynamic figure that changes as costs and pricing evolve. Our guide to break-even analysis for UK founders covers how to calculate yours and how to use the result in early planning decisions.