What Is Cost-Plus Pricing?
Cost-plus pricing sets your price by adding a fixed margin on top of your costs. Simple to implement, but it has real limitations every SME owner should know.
Key Takeaways
- Cost-plus pricing sets price by adding a target margin to your total unit cost.
- It is easy to apply but ignores what customers are actually willing to pay.
- Works best in commodity markets or contract bidding where costs are the primary driver.
How cost-plus pricing works
Cost-plus pricing is the most straightforward pricing method: work out what it costs you to produce or deliver one unit, then add a percentage margin on top. If a product costs you £40 to make and you want a 50% margin, you price it at £80. The formula is simple — Price = Cost / (1 − Target Margin). Every business uses some version of this as a floor: you should never sell below your fully loaded cost.
What gets included in 'cost'
The most common mistake is undercosting. Direct costs — materials, labour, shipping — are obvious. But you also need to allocate a share of fixed overhead: rent, software subscriptions, salaries of people not directly making the product. If you ignore overhead, your 50% margin can shrink to 5% once the bills arrive. Use fully absorbed cost, not just variable cost, when setting your cost-plus price.
The big limitation
Cost-plus pricing is internally focused. It tells you nothing about whether customers see the value you're claiming. A competitor might price the same product at £120 because buyers believe it's worth £120. By anchoring to your costs, you could be leaving £40 on the table — or pricing yourself out of the market if your costs are high. Use cost-plus as your floor, then test whether the market will bear more.
When to use it
Cost-plus works well in regulated industries, government contracts, and commodity markets where price competition is fierce and customers compare line by line. It also helps when you're quoting custom projects: calculate costs, add a margin, and present the quote. For consumer products and SaaS, you will almost always benefit from layering value-based thinking on top of the cost-plus foundation.