What is the difference between markup and margin for contractors?

Markup is the percentage added to your costs to arrive at a selling price (Profit / Cost). Margin is the percentage of the final selling price that you keep as profit (Profit / Selling Price). For example, adding a 25% markup on a $1,000 job yields $1,250, which is only a 20% profit margin.

Why do contractors lose money by confusing markup with margin?

If a contractor aims for a 30% profit margin but simply multiplies their costs by 1.30 (a 30% markup), their actual gross profit margin is only 23.1%. On a $10,000 job, that arithmetic error leaves $690 less profit in their pocket than planned.

The #1 Estimating Mistake in Trades

Contractor Markup vs. Margin Calculator

Adding a 30% markup is not a 30% profit margin—it’s only 23.1%. Input your real job costs below to calculate your true breakeven, overhead recovery, and required quote price.

Quick load example:

1. Direct Job Costs

Materials Cost ($)

Direct Labor Cost ($)

Crew hours × hourly wages (including payroll taxes & workers comp).

Subcontractors, Permits & Equipment Rental ($)

2. Overhead & Desired Profit

Company Overhead 10%

Trucks, tools, insurance, software, gas.

Target Net Margin 25%

Clear profit left after all overhead is paid.

Recommended Client Quote

$5,633

Net Dollar Profit $1,408 Clear profit

Required Markup +33.3% To get 25% margin

Direct Job Costs: $3,850

Allocated Overhead (10%): $385

Breakeven Cost: $4,225

The Markup Trap on This Job

If you used a flat 25% markup instead of margin, you would have quoted $5,281. You would leave $352 on the table!

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Download the laminated-ready 1-page PDF showing exact markup-to-margin conversions from 10% to 50% plus 3 on-site change order verbal scripts for difficult clients.

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Frequently Asked Questions

What is the difference between markup and margin?

Markup is the percentage added to your direct costs (Markup = Profit / Cost). Margin is the percentage of the final price you keep as profit (Margin = Profit / Price). For example, a 50% markup equals a 33.3% margin.

How should contractors account for business overhead?

Overhead includes costs that don't belong to a single project: general liability insurance, software subscriptions, shop rent, vehicle leases, and tool maintenance. Most small contracting crews carry between 8% and 20% overhead. If you don't add this percentage to your job estimate before calculating your profit margin, your overhead comes straight out of your pocket.