Breaking even means reaching the exact level of sales at which total revenue equals total costs so profit equals zero. The break even point gives every Australian owner or manager an instant target for the minimum units and sales dollars they must achieve before they can start making money. Use the simple formula Break even units = Fixed costs ÷ (Selling price per unit - Variable cost per unit). Multiply the resulting units by the selling price to see the break even sales revenue. Enter those three inputs into the calculator below to receive the answer in seconds, then keep reading for worked examples, practical guidance and a downloadable spreadsheet.
Break even point calculator
Enter your fixed costs for the period in Australian dollars, your current or planned selling price per unit and your variable cost per unit. The calculator returns the contribution margin per unit, the number of units required to break even and the sales revenue that result. It automatically checks that the selling price exceeds the variable cost and that no field is left empty. For businesses registered for GST the calculator operates on either GST inclusive or GST exclusive figures provided that you stay consistent across every field. Reset and copy buttons let you clear the fields quickly or paste the answer into an email, spreadsheet or plan. Mobile users enjoy the same experience thanks to responsive styling and large touch targets.
What is the break even point
The break even point is the sales volume or revenue where a business earns exactly zero profit. At that level every dollar of contribution margin goes toward paying fixed costs and no surplus remains. Below break even a business loses money. Above break even it starts to earn profit, provided price and cost assumptions hold. Owners, lenders and regulators rely on break even analysis because it turns abstract cost data into a concrete sales target. For Australian companies it supports directors in meeting their duty of care under the Corporations Act, reassures the ATO that record keeping and forecasting are robust and gives banks evidence that the venture can cover interest and principal.
Fixed costs stay the same regardless of output within a relevant range. Typical examples include rent, salaries, depreciation, insurance, accounting subscriptions and business registration fees. Variable costs rise in line with production or sales quantity. They include raw materials, packaging, freight, credit card fees, sales commissions and hourly labour hired only when an order exists. When management subtracts variable cost per unit from selling price per unit, the result is contribution margin per unit, the amount each sale contributes toward fixed costs and then profit.
Break even point formula
The universal equation reads as follows in plain text. Break even units = Fixed costs ÷ (Selling price per unit - Variable cost per unit) Break even sales revenue = Break even units × Selling price per unit
You can also express break even in dollar terms without first finding units by rearranging the equation with the contribution margin ratio. Contribution margin ratio = Contribution margin per unit ÷ Selling price per unit Break even sales revenue = Fixed costs ÷ Contribution margin ratio
Both approaches give the identical revenue target when the figures are consistent. The unit version is usually clearer for a single product, while the ratio version suits a portfolio or a service that prices by the hour or by project value.
Step by step break even calculation
First identify all fixed costs for the chosen period. If you want a monthly break even point, include one month of rent, salaries, insurance and similar overheads. If you want an annual figure, include twelve months of those costs. Second confirm the selling price per unit that customers pay. Third calculate or obtain the variable cost per unit, factoring in materials, labour, merchant fees and any delivery. Fourth subtract the variable cost per unit from the selling price to obtain contribution margin per unit. Fifth divide fixed costs by contribution margin per unit to find the number of units required to break even. Sixth, because you cannot sell a fraction of a unit, round the result up to the nearest whole number. Seventh multiply the rounded units by the selling price per unit to check the revenue required. Throughout the process keep GST treatment consistent. Most business planners work with figures before GST so they can focus on economic value rather than tax collected on behalf of the government.
Worked example for a retail product
A Melbourne specialty tea store incurs monthly fixed costs of 12000 dollars comprising rent, base wages, utilities and marketing software. Each tin of premium tea retails for 40 dollars. Ingredients, packaging and payment processing cost 15 dollars per tin. Contribution margin per unit therefore equals 25 dollars. Divide 12000 by 25 to obtain 480 tins. That figure rounds naturally because it is a whole number already. Break even sales revenue equals 480 times 40 which is 19200 dollars in a typical month. If the shop forecasts average foot traffic of only 350 tins a month its plan shows a loss of 3250 dollars. Management can use that insight to consider price adjustments, cost reductions, partnerships with cafes or expanded ecommerce to bring forecast sales above 480 tins.
Worked example for a service business
A Brisbane graphic design studio has annual fixed costs of 150000 dollars covering studio rent, software subscriptions and base salaries. The studio charges an average project fee of 3000 dollars. Variable costs of 600 dollars per project include outsourced illustration, printing proofs and online collaboration tools billed per job. Contribution margin per project equals 2400 dollars. Dividing 150000 by 2400 gives 62.5. Because half a project cannot exist, the studio must complete at least 63 projects in the year to break even. Multiplying 63 by 3000 gives break even sales revenue of 189000 dollars. Management translates that into roughly six projects every month or about one and a half projects each week. If the pipeline looks weak the firm can recruit referral partners, run targeted ads or introduce packaged design products to lift conversion rates.
Using the contribution margin ratio for break even sales
When a business sells a range of products at different prices the weighted average contribution margin per unit becomes harder to calculate. In that case many owners switch to the contribution margin ratio approach. Suppose the same tea store now sells both premium tins and sampling sachets. Across the mix the store expects total sales of 30000 dollars, variable costs of 11000 dollars and fixed costs still at 12000 dollars. Contribution margin ratio equals 19000 divided by 30000 which is 0.6333 or 63.33 per cent. Break even sales revenue therefore equals 12000 divided by 0.6333 which rounds to 18943 dollars. Management can measure actual sales against that single revenue threshold even though individual items carry different unit margins.
What the break even result means for your business
The break even figure represents the minimum viable level of activity. If a start up cannot realistically achieve that level within a reasonable time frame, the founders might revise the model or pause the launch. In an established company break even provides an early warning sign for declining demand or rising costs. When monthly actual sales dip below break even for several periods the directors must investigate and take corrective action to avoid insolvent trading. On the positive side, once sales exceed break even, every additional unit sold at the same contribution margin goes mainly toward profit, so the company can forecast earnings growth quickly by modelling sales increments above the threshold.
Margin of safety explained
Margin of safety equals actual or forecast sales minus break even sales. It measures how far sales can fall before the enterprise hits the zero profit point. Expressing the number as a percentage of actual sales provides an intuitive gauge of risk tolerance. If actual monthly sales equal 25000 dollars while break even sales equal 19000 dollars, the margin of safety equals 6000 dollars or 24 per cent of actual sales. Management can sleep easier knowing demand can drop almost one quarter before losses emerge. Conversely, a margin of safety of only five per cent suggests high volatility or an urgent need to lift prices or cut costs.
Reducing your break even point
Businesses can bring the break even threshold down by cutting fixed costs, negotiating better variable cost rates, raising selling prices, improving mix toward higher margin products or increasing the average customer spend per transaction. Each tactic has trade offs. Cutting fixed costs like staff might reduce capacity and service quality. Raising prices might lower demand in price sensitive segments. Yet the combined effect of modest cost reductions and price optimisation can produce dramatic improvements because contribution margin changes feed directly into the denominator of the formula. Sensitivity analysis in the spreadsheet or calculator helps managers test scenarios before committing.
Common mistakes to avoid
Some owners mix monthly fixed costs with annual revenue, leading to an inflated break even figure. Others forget to include merchant fees, freight or owner wages in variable costs. Rounding contribution margin too early distorts the final answer, so keep full decimals until the final step. Many businesses use GST inclusive figures for price but GST exclusive figures for cost or vice versa. Consistency is essential because GST collected on revenue is not part of profit and GST paid on expenses is usually recoverable. Finally, applying the single product formula to a multi product range without weighting margins can hide a loss on low margin items.
Break even spreadsheet template
Download the companion spreadsheet to test unlimited scenarios. The file contains clearly labelled input cells for fixed costs, selling price and variable cost, then shows contribution margin, break even units, break even revenue and margin of safety in both dollars and percentage. In the second tab you can enter up to ten products with their expected unit sales, prices and variable costs. The sheet automatically calculates a weighted average contribution margin ratio and then the consolidated break even sales revenue. An embedded data table lets you vary selling price, fixed costs or variable costs across three scenarios to visualise best case, base case and worst case outcomes. The spreadsheet requires only standard Excel or Google Sheets functions so it operates on any modern device without macros.
Frequently asked questions
What is the break even point
The break even point is the level of sales where total revenue equals total costs so profit equals zero.
What is the break even point formula
Break even units equal fixed costs divided by selling price per unit minus variable cost per unit, and break even sales revenue equals break even units multiplied by selling price per unit.
How do you calculate break even sales revenue directly
Divide fixed costs by the contribution margin ratio which is contribution margin divided by sales.
Can the break even point be negative
No meaningful break even result exists when variable cost per unit equals or exceeds the selling price because contribution margin would be zero or negative. The business must raise price, lower variable cost or change its offer.
Should GST be included in break even calculations
Use either all GST inclusive or all GST exclusive figures. Many planners prefer GST exclusive numbers so they can focus on economic value rather than tax collected on behalf of the ATO.
Does break even analysis work for services
Yes. Replace units with billable hours, projects or appointments and calculate variable cost per service unit such as subcontractor payments, licence fees or consumables.
Is break even analysis useful for multiple products
Yes, but you must account for the expected sales mix by calculating a weighted average contribution margin or by applying the contribution margin ratio approach.
What happens to break even when price increases
Assuming costs remain unchanged, a higher selling price raises contribution margin per unit which lowers the number of units required to break even. Demand may fall if customers resist the increase, so test elasticity in your forecast.
How is break even different from profitability
Break even marks the point where profit equals zero. Profit only appears after sales exceed break even, provided price and cost assumptions stay valid.
Can break even analysis forecast cash flow
Break even focuses on profit not timing of cash receipts and payments. A company can break even on paper yet face cash shortages if customers pay slowly or inventory levels rise. Combine break even analysis with a cash flow forecast for a complete picture.
Summary and next steps
The break even point turns financial complexity into a clear target. By dividing fixed costs by contribution margin, any Australian business can calculate how many units it must sell and how much revenue it needs before profit begins. Use the free calculator at the top of the page to test your own numbers, then download the spreadsheet for deeper scenario modelling. Monitor actual sales against the break even threshold each month, review your margin of safety and take action to adjust price, costs or mix whenever the gap narrows. For more guidance on contribution margin, pricing strategy, cash flow forecasting and business planning tools, explore the related resources linked below or book a consultation with a qualified Australian accountant.
