Break-Even Calculator
Work out how many units or sales you need to cover your fixed costs.
Calculate units and revenue needed to cover fixed costs.
Use the calculator below to create a quick planning estimate based on the figures you enter. Results are for guidance and should be checked against current UK tax rules and HMRC guidance where appropriate.
Break-Even Calculator
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Calculate units and revenue needed to cover fixed costs.
How to use this calculator
Enter the figures that best match your situation and select the calculation button. The result is intended as a useful planning estimate rather than a substitute for a tax return or professional advice.
Keep your figures up to date when tax rates, thresholds, costs or business circumstances change.
Frequently Asked Questions
What is a break-even point?
Break-even is the point where sales revenue covers fixed and variable costs, leaving no profit or loss.
What figures do I need?
Enter monthly fixed costs, the average selling price per unit and the variable cost per unit.
What if my selling price is lower than my variable cost?
There is no workable break-even point under those assumptions because each additional unit loses money before fixed costs are covered.
Does the calculator include tax?
No. It is a trading break-even calculation and does not include Corporation Tax, Income Tax or other personal tax liabilities.
Can I use it for a service business?
Yes, if you treat a unit as a measurable sale such as an hour, project or service package and use an appropriate variable cost per unit.
Important information
This calculator provides an estimate for general planning and educational purposes. It is not a tax return, accounting record or personalised professional advice. Tax rules, rates and thresholds can change, and individual circumstances can affect the result.