How to Calculate Your Break-Even Point as an Online Seller
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Every shop has a number of sales it must make each month before it earns anything at all. Below that number you are paying to run the business; above it, every sale adds profit. That number is your break-even point, and knowing it changes how you set prices, plan sales and decide whether a new subscription is worth it.
This guide shows how to calculate it for an online shop, including the marketplace and payment fees that generic break-even guides leave out.
Fixed costs and variable costs
Every cost belongs in one of two groups:
- Fixed costs stay the same however many orders you get: platform subscriptions (Shopify, Etsy Plus, an eBay Shop), apps, software, website hosting, insurance, equipment, and the salary you want to pay yourself.
- Variable costs come with each sale: the product or materials, packaging, the postage you pay, and fees that are charged per order.
Marketplace and payment fees are usually a percentage of the price, so they are easiest to handle separately from your other variable costs.
The break-even formula
First work out what each sale contributes towards your fixed costs:
Contribution per unit = price − (fees % × price) − variable cost per unit
Then divide your fixed costs by that contribution and round up:
Break-even units = fixed costs ÷ contribution per unit
And if you want a target profit, add it to the fixed costs:
Units for a target profit = (fixed costs + target profit) ÷ contribution per unit
Try your own numbers:
Break-Even Calculator
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Enter your price and costs.
Worked example: an Etsy candle shop
A candle maker has these numbers each month:
- Fixed costs: $600 (Etsy Plus, a scheduling app, insurance, supplies that do not scale, and a small salary).
- Average price: $30.
- Variable cost per candle: $12 (materials, jar, label, packaging and postage).
- Etsy fees: about 11% of the price.
Each candle contributes $30 − $3.30 − $12 = $14.70. The shop needs $600 ÷ $14.70 = 40.8, so 41 sales a month to break even, or about $1,230 of sales.
To earn $900 of profit on top, it needs ($600 + $900) ÷ $14.70 = 103 sales a month.
Small changes, big effects
Because fixed costs do not move, small improvements to the contribution per unit reduce the number of sales you need:
- Raise the price from $30 to $33 and the contribution rises to $17.37. Break-even falls from 41 to 35 sales.
- Cut variable costs by $1 (cheaper jars bought in bulk) and the contribution rises to $15.70, so break-even falls to 39.
- Cancel a $60 app and fixed costs fall to $540, so break-even falls to 37.
This is why the first step when a shop is not making money is rarely "sell more". Check the price and the costs first.
Break-even for a new product
The same idea works for a single product launch. Add up the one-off costs of the launch, such as samples, moulds, photography and the first batch of packaging, and divide by the contribution per unit of that product. If a new mug design costs $240 to develop and each mug contributes $9 after fees and materials, you need 27 sales before the design has paid for itself. Comparing that number with how many similar products usually sell in their first few months tells you quickly whether the launch is a safe bet or a gamble.
When you can never break even
If the price does not cover the variable costs plus fees, the contribution is zero or negative. Every extra sale then loses money, and no amount of marketing will fix it. This happens most often with cheap items that carry a fixed per-order fee, with free shipping that costs more than expected, or with deep discounts. Read how to run a sale without losing money before cutting prices.
Using your break-even point
- Pricing: check that your planned volume is comfortably above break-even. If you need 41 sales and usually make 45, one slow month puts you in the red.
- New costs: before adding a $50-a-month app, divide $50 by your contribution per unit. That is how many extra sales it must bring in.
- Platform choice: fees change the contribution per unit. Compare platforms with the Etsy, eBay and Amazon calculators.
- Per-item minimums: each fee calculator on this site also shows a break-even item price, the lowest price that covers that item's costs. Use it as your floor when accepting offers.
The bottom line
Your break-even point is fixed costs divided by what each sale contributes after fees and variable costs. Work it out, keep it in view, and use small changes to price and costs to bring it down. The break-even calculator does the maths in seconds.
Frequently asked questions
What is a break-even point?
The number of sales (or the sales revenue) at which your income exactly covers your fixed and variable costs, so you make neither a profit nor a loss.
Should I include my own wage in fixed costs?
Yes, if you want to know when the business truly pays its way. Otherwise you will break even on paper while working for free.
How often should I recalculate my break-even point?
Whenever your prices, costs or fees change, and at least every few months. Platform fee increases quietly raise your break-even point.