What is cost-plus pricing?
Cost-plus pricing means you start from what a unit costs you and add a profit on top. It is a practical starting point because you only need numbers you already have: supplier invoices, shipping bills and fee statements.
Its weakness is that it ignores the customer. A cost-plus price tells you the least you can charge and still hit your target, not the most people will pay. Use it as a floor, then test it against the market.
What goes into the full cost of one unit?
List every cost that happens each time you sell one unit, not just the product itself:
- Product cost: what you pay the supplier, or your materials and direct labor if you make it.
- Inbound freight: shipping and duties on stock, divided by units in the shipment.
- Packaging: box, filler, tape, labels, inserts.
- Outbound shipping and fulfilment: postage you pay plus any pick-and-pack charge.
- Payment processing fees: usually a percentage of the sale, sometimes plus a fixed amount per order.
- Marketplace or platform fees: commission charged by the site you sell on, often a percentage of the price.
- Returns allowance: the average cost of returns spread across every sale. If 5% of orders come back and each return costs you $6 in postage and unsellable stock, that is 0.05 × $6 = $0.30 per sale.
Leave out rent, subscriptions, insurance and a fixed ad budget. They don't change with each sale, so they belong in the break-even check.
How do you turn a target margin into a price?
Margin is the share of the selling price you keep as profit. If you want to keep 40% of every dollar, the cost can only take up the other 60%, so you divide the cost by 0.60:
Price = Unit cost ÷ (1 − Target margin)
Fees charged as a percentage of the price need one more step. They grow when the price grows, so you can't add them to the unit cost as a fixed dollar amount. Subtract them in the denominator instead:
Price = Fixed-amount unit costs ÷ (1 − Target margin − Percentage fees)
Leave the fees out and your real margin comes out lower than planned. If you prefer to think in markup, the markup calculator converts between the two, and the profit margin calculator finds a price from any target margin.
What does a full pricing example look like?
Suppose you sell handmade ceramic mugs online. All the figures below are hypothetical. Use your own invoices and fee statements, not these numbers.
| Cost component | Per unit |
|---|---|
| Clay, glaze and firing | $6.40 |
| Inbound freight on materials | $0.60 |
| Packaging | $1.20 |
| Outbound shipping (free to the customer) | $4.50 |
| Returns allowance (5% returned × $6) | $0.30 |
| Fixed-amount unit cost | $13.00 |
| Payment and marketplace fees combined | 12% of the price |
You want to keep 40% of the price after all of these costs.
- Add the percentage-based items: 40% margin + 12% fees = 52%.
- Work out what is left for the fixed-amount costs: 1 − 0.52 = 0.48.
- Divide: $13.00 ÷ 0.48 = $27.08.
- Check it: fees are 12% × $27.08 = $3.25, and profit is $27.08 − $13.00 − $3.25 = $10.83, which is 40% of $27.08.
- Round to a price that suits your shop. At $28.00, fees are $3.36, profit is $11.64 and the margin is 41.6%.
Compare that with the shortcut of ignoring the fees: $13.00 ÷ 0.60 = $21.67. The fees on that price are $2.60, leaving $6.07 of profit, a margin of only 28% instead of 40%.
How many units do you need to sell at that price?
Each sale contributes its profit toward your fixed costs. Divide your monthly fixed costs by the profit per unit to get the number of sales you need to break even.
Say the mug shop has $1,500 a month in fixed costs: website plan, studio share, insurance and a $600 ad budget. Here is how the price changes the picture, using the same $13.00 unit cost and 12% fees:
| Price | Fees | Profit per mug | Margin | Mugs to break even each month |
|---|---|---|---|---|
| $22.00 | $2.64 | $6.36 | 28.9% | 236 |
| $25.00 | $3.00 | $9.00 | 36.0% | 167 |
| $28.00 | $3.36 | $11.64 | 41.6% | 129 |
| $32.00 | $3.84 | $15.16 | 47.4% | 99 |
If you can realistically sell around 100 mugs a month, $22 doesn't work even though it is well above cost: you would need more than twice that volume to break even. Run your own numbers through the break-even calculator and compare the result with sales you have actually seen, not sales you hope for.
How do you check your price against competitors and perceived value?
Cost sets the floor. The market sets the ceiling. Compare your price with the real alternatives a customer would consider:
- Compare like with like. Match size, materials, quality and delivery terms. A price that includes shipping is not comparable with one that adds it at checkout.
- If you are well above the range, you need a visible reason, such as better materials, a distinctive design or faster delivery.
- If you are well below the range, you may be leaving money on the table, and a very low price can make buyers doubt quality.
- Test before you settle. Try a price for a set period and watch profit per week, not just order count.
If the market price sits below your floor, work on costs instead: buy in larger batches, cut packaging, or set a minimum order for free shipping.
What are the most common pricing mistakes?
- Pricing from the product cost alone. In the mug example the clay and firing are less than half of the $13.00 unit cost.
- Adding percentage fees as a flat amount. They scale with the price, so they belong in the denominator.
- Forgetting discounts. A 20% sale on the $28 mug drops the price to $22.40, profit to $6.71 and margin to about 30%. Check sale prices with the discount calculator before you announce them.
- Ignoring tax. If you charge VAT or sales tax, set your margin on the price before tax. Our guide to how VAT works for small sellers explains why.
- Never revisiting the price. Recheck it whenever a supplier, carrier or platform changes its rates.