Proposals · Glossary

What is cost plus pricing?

Cost plus pricing sets a price by adding a markup to the cost of supplying a product or service. If a job costs $2,000 in labour and materials and the markup is 25 percent, the price is $2,500. In a cost plus contract, the client pays the actual costs as they arise plus an agreed fee or percentage.

Cost plus is the pricing method most small businesses start with, because it guarantees a margin over cost on every job. Its weakness is that it says nothing about what the work is worth to the client.

Nuwan Madhusanka · Co-founder

4 min read · Published 21 October 2026

Cost plus against other pricing methods
Method	How the price is set	Who carries cost risk	Suits
Cost plus, fixed markup	Cost plus a percentage	Shared; the price moves with cost	Products, materials, stable costs
Cost plus contract	Actual costs plus a fee as they occur	Mostly the client	Uncertain scope, trusted relationships
Fixed price	One agreed price for the scope	The supplier	Clear scope, repeat jobs
Value based	What the result is worth to the client	The supplier, for a higher return	Advisory or creative work

How the formula works

Start with every cost of delivering the job: materials, labour at its true cost, subcontractors, equipment, travel and a share of overheads. Then add a markup percentage that covers profit and anything not costed. Price equals cost times one plus the markup. A $2,000 cost with a 25 percent markup gives $2,500, a margin of $500, which is 20 percent of the price. That difference between markup and margin is easy to confuse and is covered on the markup versus margin page. The Australian Government business site lists cost plus pricing as one of the main strategies, with the instruction to calculate total cost first and then add a mark up or margin.

Cost plus contracts

A cost plus contract applies the idea to a whole project: the client pays what the work actually costs, as evidenced by invoices and timesheets, plus a fixed fee or a percentage. It is common where the scope cannot be priced up front, such as some renovations, repairs after damage, or research work. The United States Federal Acquisition Regulation sets out cost reimbursement contract types in Part 16, including cost plus fixed fee, and restricts cost plus a percentage of cost contracts for federal buyers because they reward higher spending. Home building laws in some Australian states restrict cost plus contracts with homeowners, so check your state's requirements before offering one.

When cost plus fits

Cost plus works when costs are well known and similar from job to job, when clients compare suppliers mainly on price, and when you sell products with a clear unit cost. It also works for uncertain jobs where a fixed price would need a large contingency. It fits less well for knowledge work, where the cost of an hour says little about the value of the result, and for jobs where clients expect a firm figure up front.

Common mistakes

The biggest mistake is leaving costs out: unpaid admin time, travel, callbacks, insurance and equipment wear. The second is applying the same markup to everything, when labour and materials often need different ones. The third is confusing markup with margin and earning less than planned. And on cost plus contracts, the most common dispute is over what counts as a cost, so define it in writing before work starts.

Where it shows up in the product

Proposals and quotes in the proposals module are priced in one pricing table of line items with Item, Qty, Unit price, Tax, Discount and Amount, so a cost plus quote is written as items whose unit prices already include your markup, with the method explained in the terms. Price hints in the brief are authoritative, so the generator keeps your marked up prices exactly. The AI chat can then add, update or remove items or apply a discount, each shown as a preview first.

Questions people ask

What is a typical markup for cost plus pricing?

There is no standard figure; it depends on your overheads, competition and the risk in the work. Trades businesses often mark up materials by a smaller percentage than labour. Work out the markup from what you need to cover overheads and profit across a year, rather than copying a number from another business.

Should clients see the markup in a cost plus quote?

In a fixed markup quote, clients usually see only the final prices. In a cost plus contract, they see actual costs and the fee, because that is the basis of the deal. Whichever you use, be consistent, and make sure the terms say clearly whether invoices will show costs and fees separately.

Is cost plus the same as time and materials?

They are close relatives. Time and materials charges hourly rates and materials, usually with a markup on materials, while cost plus charges actual costs plus a fee or percentage. Both move the risk of an uncertain scope toward the client, and both need good records to avoid disputes.

Can I put a maximum price on a cost plus contract?

Yes, many contracts add a guaranteed maximum price or a not to exceed figure, so the client knows their worst case while still paying actual costs below it. The supplier then carries the risk above the cap, so the cap should allow for genuine uncertainty in the scope.

Why do some clients distrust cost plus pricing?

Because the supplier earns more when costs rise, which can feel like a reason not to control them. Clear definitions of allowable costs, regular cost reports, a fixed fee rather than a percentage, and a price cap all reduce that concern and make a cost plus arrangement easier to agree.

Make one with proposals

The button opens the generator with this use case already described. Change the wording to match your own.

Create a proposal with OneCraft

Sources

Written and checked by the OneCraft team. Last checked 21 October 2026.