Markup vs. Margin: Why Knowing the Difference Matters

Markup and margin are two of the most important numbers in business—and two of the easiest to confuse.

They sound similar. They're both percentages. And they're both used when talking about pricing and profitability.

But markup and margin are not the same thing.

If you run a construction, trades, or project-based business, understanding the difference can have a major impact on how you price your work and how much profit you actually make.

What is markup?

Markup is the amount you add to your cost to determine your selling price.

For example, suppose a job costs you $10,000.

If you add a 30% markup:

$10,000 × 30% = $3,000 markup

Your selling price becomes:

$10,000 + $3,000 = $13,000

Your markup is 30%.

Simple enough.

So what is margin?

Margin looks at your profit as a percentage of your selling price.

Using the same example:

• Cost: $10,000
• Selling price: $13,000
• Gross profit: $3,000

Your gross margin is:

$3,000 ÷ $13,000 = 23.1%

So a 30% markup only gives you a 23.1% margin.

Why does this matter?

Because if you think you're earning a 30% margin when you're actually earning a 23.1% margin, your pricing may not be doing what you think it is.

And the bigger the markup, the bigger the difference becomes.

For example:

The formula for converting markup to margin is:

Markup ÷ (1 + Markup) = Margin

So if your target is a 30% margin, you cannot simply add 30% to your costs.

You need a markup of approximately 42.9%.

Why this matters for contractors and trades businesses

For project-based businesses, pricing isn't just about covering the direct cost of materials and labour.

You also have overhead: Insurance. Vehicles. Shop costs. Software. Administration. Office staff. Accounting. Rent. Equipment. Financing. Training. And all the other costs that keep the business running when nobody is swinging a hammer or sitting in an excavator.

That's why knowing your gross margin matters.

A job can have a positive gross profit and still leave very little money available to cover overhead and generate a profit for the owner.

The bigger question isn't "What markup should I use?"

It's:

"What margin do I actually need?"

That's a much better question.

Your target margin should reflect your business model, overhead structure, risk, capacity, and profit goals.

And once you know your target margin, you can work backwards to determine the markup required to get there.

Don't let a percentage fool you

A 30% markup sounds better than a 23% margin.

But they aren't competing numbers.

They're answering two different questions.

Markup asks: How much did I add to my cost?

Margin asks: How much of my selling price is left after my direct costs?

Both are useful.

But if you're using these numbers to make pricing decisions, you need to know which one you're actually looking at.

The takeaway

If you haven't looked at your margins lately, don't just ask how much revenue you're bringing in.

Look at what you're actually keeping.

Because revenue tells you how much work you're doing. Margin tells you whether the work is worth doing.

And that's a number worth knowing.