Cost Plus Pricing: Formula, Examples and When to Use It

Quick answer: Cost plus pricing means calculating the full cost of a product or service and adding a set markup for profit. The formula is Price = Unit cost × (1 + Markup %). A product that costs $10.00 with a 50% markup sells for $15.00. To target a margin instead, use Price = Cost / (1 - Margin).

Cost plus pricing is the most common way small businesses set prices, because it is simple and guarantees each sale covers its cost. It also has well-known weaknesses. This guide explains the formula, how to build a complete cost, how to pick a markup for a target margin, worked examples for products, services and cost-plus contracts, and how to invoice them with the free invoice generator. If you are comparing pricing strategies more broadly, our guide to how to price a product covers seven of them side by side.

The cost plus pricing formula

There are two versions, and mixing them up is a common source of underpricing.

Markup on cost

Price = Unit cost × (1 + Markup %)

Example: $10.00 cost × 1.50 = $15.00. Profit is $5.00, which is 50% of cost but only 33.3% of price.

Target margin on price

Price = Unit cost / (1 - Target margin %)

Example: $10.00 / (1 - 0.40) = $16.67. Profit is $6.67, which is 40% of price and 66.7% of cost.

If you want a particular profit margin on your profit and loss statement, convert it to the matching markup before you price:

Target margin	Markup needed	Price on a $100 cost
20%	25.0%	$125.00
25%	33.3%	$133.33
30%	42.9%	$142.86
40%	66.7%	$166.67
50%	100.0%	$200.00

The conversion is markup = margin / (1 - margin). Our markup vs margin guide has a fuller chart and explains why the difference matters.

What goes into "cost"

Cost plus pricing fails most often because the cost is incomplete. A full unit cost has three parts:

• Direct materials: everything that ends up in the product or is used up on the job, including packaging and freight in. See cost of goods sold for what counts.
• Direct labour: the time spent making the product or delivering the service, at a loaded rate that includes payroll taxes and benefits.
• Allocated overhead: a share of rent, insurance, admin, software and equipment. Our guide to overhead costs shows how to calculate an overhead rate per hour.

Also consider costs that scale with price, such as card processing fees and sales commissions. They are easy to miss because they do not appear until the sale happens.

How to set a cost plus price step by step

1. Add up direct materials per unit or per job.
2. Add direct labour: hours × loaded hourly cost.
3. Add overhead: hours × your overhead rate, or a per-unit share.
4. Choose your target margin based on what the business needs to fund the owner's return, reserves and growth.
5. Convert the margin to a markup and calculate the price.
6. Check the market. Compare with competitors and with what customers have paid before. If the price is far above the market, look for cost savings; if it is far below, you may be leaving money on the table.
7. Round sensibly and document the calculation so you can update it when costs change.

Cost plus pricing examples

The method is the same for products and services: total the cost, then apply the markup. What changes is where the cost comes from. For a product, it is materials and production time per unit. For a service, it is the cost of an hour of your time, including the overhead and non-billable hours behind it.

Example 1: a handmade product

A ceramics studio sells mugs to cafés. Per mug:

Cost element	Per mug
Clay and glaze	$3.10
Labour (12 minutes at $22 an hour)	$4.40
Packaging	$0.50
Overhead share (kiln, studio rent, insurance)	$2.00
Full unit cost	$10.00

Labour check: 12 minutes is 0.2 hours, and 0.2 × $22 = $4.40. The total is $3.10 + $4.40 + $0.50 + $2.00 = $10.00.

• At a 50% markup: $10.00 × 1.50 = $15.00 wholesale. Margin = $5.00 / $15.00 = 33.3%.
• For a 40% margin: $10.00 / 0.60 = $16.67. Markup = $6.67 / $10.00 = 66.7%.

An order of 120 mugs at $16.67 comes to $2,000.40. The studio might round to $16.50 or $17.00 per mug after checking what similar mugs sell for wholesale.

Example 2: a service business

A bookkeeper wants to earn $70,000 a year and has $20,000 of annual overhead (software, insurance, training, office, marketing). Realistically she can bill 1,200 hours a year after admin, sales and time off. Her cost per billable hour is ($70,000 + $20,000) / 1,200 = $75.00.

With a 30% markup, her rate is $75.00 × 1.30 = $97.50 an hour. The profit element is $22.50 an hour, or $27,000 a year at 1,200 hours. The billable-hours estimate matters as much as the markup. If she only bills 1,000 hours, her cost per hour rises to $90,000 / 1,000 = $90.00, and the same 30% markup gives $117.00 an hour. Charging $97.50 on 1,000 hours would bring in $97,500, only $7,500 above her $90,000 of salary and overhead. That profit is a buffer for slow months, equipment replacement and growth, separate from the salary already built into her cost. Our freelance rates guide walks through the same logic, and how to invoice for hourly work covers the billing side.

Cost-plus contracts: a renovation example

Cost plus pricing is also a contract type. In a cost-plus contract, the client pays the contractor's actual allowable costs plus a fee. This is common in renovation and construction when the scope is hard to fix in advance. Here is one month on a kitchen renovation billed at cost plus 15%:

Invoice line	Amount
Labour: 240 hours at $35	$8,400
Materials (receipts attached)	$5,650
Electrical subcontractor	$3,200
Equipment rental	$750
Total costs	$18,000
Contractor fee at 15% of costs	$2,700
Invoice total	$20,700
Less deposit already paid	-$5,000
Balance due	$15,700

Check: 240 × $35 = $8,400, and $8,400 + $5,650 + $3,200 + $750 = $18,000. The fee is $18,000 × 15% = $2,700, the total is $20,700, and after the $5,000 deposit the balance is $15,700. In the invoice generator, enter each cost and the fee as separate line items and record the deposit in the amount-paid field so the balance due calculates automatically. Whether sales tax applies to materials or labour depends on your state; see sales tax on invoices in the US.

Types of cost-plus contract

Type	How the fee works	Who it suits
Cost plus percentage	Fee is a percentage of actual costs	Small private renovation and repair work
Cost plus fixed fee	Fee is a set dollar amount, regardless of costs	Clients who want to remove the incentive to spend more
Cost plus with guaranteed maximum price	Costs plus fee, capped at an agreed ceiling	Larger projects where the client needs budget certainty
Cost plus incentive fee	Fee rises or falls with cost or performance targets	Government and large commercial projects

The percentage version has an obvious problem: the more the contractor spends, the more it earns. For US federal work, FAR 16.102(c) states that the cost-plus-a-percentage-of-cost system of contracting shall not be used. Private clients can agree to it, but many prefer a fixed fee or a cap. If you are weighing open-ended billing against a fixed quote, our comparison of fixed price vs time and materials covers the trade-offs. This is general information, not legal advice.

How to choose your markup

The markup is the part of cost plus pricing that needs judgment. A few factors should push it up or down:

• Risk. Fixed quotes on uncertain jobs need a bigger markup than repeat work you have done many times. Under a cost-plus contract, where the client carries the cost risk, a smaller fee is normal.
• Volume. A large wholesale order can justify a lower markup because the fixed effort of quoting, invoicing and chasing payment is spread over more units.
• Payment terms. Waiting 60 days to be paid costs money. Long terms or slow-paying clients justify a higher markup, or a deposit.
• Customisation and expertise. Work only you can do, or that solves an urgent problem, can carry more than commodity work.
• What the business needs. Work back from your annual profit goal. If overhead and owner pay are already in the cost, the markup is what funds reserves, equipment replacement and growth.

Once you have a markup, sense-check the resulting price against the market. If the cost plus price lands well below what competitors charge, that is a signal you could price higher, not a reason to stay low.

Updating cost plus prices when costs rise

Cost plus prices go stale as soon as a supplier raises prices. Suppose the ceramics studio's clay and glaze cost rises from $3.10 to $3.70 a mug, taking full unit cost from $10.00 to $10.60.

Option	Price	Profit per mug	Margin
Keep the old price	$16.67	$6.07	36.4%
Keep the same dollar profit	$17.27	$6.67	38.6%
Keep the 40% margin: $10.60 / 0.60	$17.67	$7.07	40.0%

Holding the old price quietly cuts the margin from 40% to 36.4%. Passing on only the $0.60 cost increase still lets the margin slip. To keep the planned 40% margin, the price must rise by $1.00, not $0.60. Many businesses review cost plus prices on a fixed schedule, such as every six months, and include a clause in wholesale agreements allowing price updates when material costs change.

Cost plus vs other pricing methods

Method	Starting point	Strength	Weakness
Cost plus	Your costs	Simple; every sale covers cost	Ignores customer value and competitors
Competitive	Competitors' prices	Keeps you in the market range	Assumes competitors priced correctly
Value-based	Client's gain	Captures more of the value you create	Needs client data and trust
Keystone	Wholesale cost × 2	Fast for retailers	Ignores overhead differences

In practice, cost plus works best as a floor. Calculate the cost plus price first so you know the minimum, then adjust toward market or value where you can.

When cost plus pricing works well, and when it does not

Good fit:

• Custom or one-off work with no obvious market price.
• Wholesale and contract manufacturing, where buyers expect cost-based quotes.
• Renovation, repair and government work under cost-plus contracts.
• New businesses that need a simple, defensible starting price.

Poor fit:

• Highly competitive commodity products, where the market sets the price.
• Expert services that create far more value than they cost to deliver.
• Businesses with unreliable cost data, where the markup is applied to a guess.

What to agree before a cost-plus contract starts

Cost-plus contracts depend on trust and clear records. Before work starts, put these points in writing:

1. Allowable costs. List what the client will pay for: labour, materials, subcontractors, equipment hire, permits, waste removal. Say what is excluded, such as your general office overhead if the fee is meant to cover it.
2. Labour rates. State the hourly rate for each role and whether it includes payroll costs.
3. The fee. A percentage of costs, a fixed amount, or a fee with an incentive. State it as a number, not "a reasonable fee".
4. A cap or estimate. A guaranteed maximum price or a not-to-exceed figure, and what happens if costs approach it.
5. Records and inspection. Which receipts, timesheets and subcontractor invoices you will provide with each invoice.
6. Billing schedule. Weekly, fortnightly or monthly invoices, with payment terms and how deposits are applied.
7. Change approval. How extra work is approved before costs are incurred.

A clear statement of work covering scope, plus these billing terms, prevents most disputes on open-book jobs.

Common cost plus pricing mistakes

• Marking up direct costs only and hoping the markup covers overhead.
• Confusing markup with margin, which produces a lower margin than planned.
• Not updating prices when material or labour costs rise. Our guide to raising prices helps with the conversation.
• Discounting from a cost plus price without checking the contribution margin that remains.
• Unclear contract terms on cost-plus jobs: which costs are allowable, how overhead is charged, and what proof the client gets.

Bill your cost plus prices clearly

Cost plus pricing is only as good as the cost behind it, so count materials, labour and overhead before adding your markup, and convert any target margin to the right markup first. When the work is done, itemise costs and fees clearly on the invoice. Create a professional invoice in minutes with the free invoice generator, or start from the modern invoice template. Every invoice exports as a PDF, so it looks the same on your client's phone, laptop or printer.