What are fixed costs vs variable costs?

Fixed costs remain constant regardless of output (e.g. rent, salaries, insurance). Variable costs change with production volume (e.g. materials, packaging, delivery). Understanding both is crucial for break-even analysis.

How can I lower my break-even point?

You can lower the break-even point by reducing fixed costs, decreasing variable costs per unit, or increasing your selling price. Improving operational efficiency also helps by reducing waste and overhead.

Why is break-even analysis important for small businesses?

It helps UK small businesses set realistic sales targets, evaluate pricing strategies, assess the viability of new products, and secure funding by demonstrating financial understanding to lenders and investors.

Break Even Analysis UK | CalculatorZone

Useful next calculations

Use the Break-Even CalculatorContinue with the related business & freelance question this result raises.
Use the Profit Margin CalculatorContinue with the related business & freelance question this result raises.

Rates and sources

UK company rates (Corporation Tax, VAT, payroll NI) as published by HMRC and Companies House.

Source: HMRC — Running a business. Check the linked guidance and any live quote before acting.

When to use this calculator

Before pricing a job, setting margin targets or reviewing hiring costs.
When you want to test sensitivity around volume, tax, markup or overheads.
When you need a practical estimate before committing to a budget or proposal.
When you are modelling break-even volume as costs or prices change.

A worked example

These are the example figures the calculator opens with.

A worked example
Input	Value
Fixed Costs (£)	£10,000
Selling Price Per Unit (£)	£50
Variable Cost Per Unit (£)	£30
Expected Units Sold	1,000

For those figures the calculator returns:

Break-Even Units: 500
Break-Even Revenue: £25,000.00
Contribution Margin: £20.00
Expected Profit: £10,000.00
Margin of Safety: 50.00%

Method & assumptions

This calculator uses the standard contribution margin method to find your break-even point. Enter your total monthly or annual fixed costs, the selling price per unit, and the variable cost per unit. The contribution margin — selling price minus variable cost — is then divided into fixed costs to produce the break-even quantity. Revenue break-even is derived by multiplying that quantity by your selling price.

The calculator assumes a single product or a consistent product mix and that costs behave in a linear, predictable way. It does not factor in stepped fixed costs (for example, a second production shift that kicks in above a certain volume), seasonal demand swings, or credit terms that delay cash receipts. Use the output as a planning guide rather than a precise operational target.

Common mistakes

Using optimistic assumptions without testing a more cautious scenario.
Using revenue in place of gross profit when calculating margin.
Treating the result as a final quote instead of a planning estimate.
Forgetting employer on-costs when modelling the true cost of a hire.

What to do next

Try at least one more scenario so you can compare a realistic range.
Use the related calculators below to cross-check the decision from another angle.
Write down the key outputs from your best scenarios before you decide.
If the result surprises you, change one input at a time to isolate the driver.

Questions people ask

Break-even analysis determines the sales volume at which total revenue equals total costs, meaning the business makes neither a profit nor a loss. It is essential for pricing decisions and business planning.