How to calculate break-even point

What break-even means in practice

Break-even is the point where you stop losing money, which makes it the minimum sales target for survival.

Below break-even, every month costs you cash. Above it, each extra sale adds profit. The number turns vague goals into a concrete target: how many customers, jobs or products must we sell each month to cover our bills?

You will need two groups of cost. Fixed costs stay the same whatever you sell, such as rent, insurance, salaried staff, software and loan payments. Variable costs rise and fall with each sale, such as materials, inventory, shipping, card fees and hourly labor. The break-even point formula guide covers the definitions in more depth.

Owners often skip this step and set goals by feel. A written break-even turns a hunch such as we need to be busier into a number the whole team can see, track weekly and celebrate when it is passed.

The formula, step by step

Break-even units equal fixed costs divided by price per unit minus variable cost per unit.

Follow these steps.

1. Add up monthly fixed costs.
2. Find the selling price per unit.
3. Find the variable cost per unit.
4. Subtract variable cost from price. That is the contribution margin: what each sale contributes toward fixed costs and profit.
5. Divide fixed costs by the contribution margin.

Illustrative example: a bakery has $12,000 of fixed costs a month. Its average sale is $20 and variable cost is $8. Contribution margin is $12. Break-even is $12,000 divided by $12, or 1,000 sales a month. At about 33 sales a day over 30 days, it breaks even. The 34th sale of the day starts making profit.

Use at least three months of real data for the inputs, not guesses. Average price and average variable cost both drift, and a break-even built on last year's costs can be badly off.

Break-even in dollars

Divide fixed costs by the contribution margin ratio to get break-even revenue, which works when you sell many different items.

Most businesses sell more than one thing, so a revenue-based version is more useful. The contribution margin ratio is contribution margin divided by price. In the bakery, $12 over $20 is 60 percent. Break-even revenue is $12,000 divided by 0.60, or $20,000 a month. That matches 1,000 sales at $20.

For a service business, use revenue and variable costs as a percentage of revenue. If a contractor has $30,000 of monthly fixed costs and variable costs equal to 55 percent of sales, the contribution margin ratio is 45 percent and break-even revenue is $30,000 divided by 0.45, about $66,700 a month. See the profit margin guide for related ratios.

Add a profit target and a safety margin

To plan for profit, add the profit you want to fixed costs before dividing.

Break-even is only the floor. Suppose the bakery wants $3,000 a month of profit after covering costs. Add it to fixed costs: $15,000 divided by $12 equals 1,250 sales a month. Now you know the goal is 1,250, not 1,000.

Calculate the margin of safety too. If you expect to sell 1,400 items a month, you are 400 above break-even, or about 29 percent of expected sales. That is how far sales can fall before you lose money. A small cushion means little room for a bad month. Test it with a payment stress test when debt is involved.

Watch seasonality too. If your sales swing widely by month, calculate break-even for the slowest months separately. Averages can hide a stretch where you fall well below the line.

Ways to lower your break-even point

You can lower break-even by cutting fixed costs, reducing variable costs per sale or raising price.

Each lever shifts the math.

• Cut or renegotiate fixed costs: rent, subscriptions, insurance. See cutting business costs.
• Lower variable cost: better supplier pricing, less waste, tighter scheduling.
• Raise price: in the bakery, a $1 increase lifts contribution margin from $12 to $13, and break-even falls from 1,000 to about 923 sales.
• Shift mix toward higher-margin items.

Recalculate each time a major cost changes, such as a new lease or hire.

Try combinations. A small price increase plus a modest cost saving usually moves break-even more than a single large change, and each is easier to achieve. Run three scenarios in a spreadsheet and keep the one you can act on this quarter.

Use break-even before you borrow or expand

Any new fixed cost, including a loan payment, raises your break-even, so recalculate before you commit.

A new location, a hire or a loan payment adds fixed cost. Suppose the bakery takes a funding offer with a $1,500 monthly payment equivalent. Fixed costs become $13,500 and break-even rises to 1,125 sales. If the financed oven adds 300 sales a month, the loan pays for itself. If it adds 50, it does not.

This is the core of payback math. ROI Funder starts with what the money will produce, then shows true cost, payback period and monthly-equivalent payments, so you can see the new break-even before you sign. Compare options like term loans and working capital and use the daily-to-monthly conversion to put payments on one basis.