Markup vs. Margin: The Mix-Up That Drains Your Profit

If you've ever priced a project, hit your markup target, and still ended up with less profit than expected, you're not alone. Markup and margin sound like the same math. They're not, and mixing them up is one of the most common pricing mistakes we see in interior design firms.

Markup and margin sound like the same math. But they're not.

Markup is what you add on top of what you paid. It answers the question, ‘Compared to what I paid, how much did I add?’ Margin is how much of the sale you actually get to keep. It answers a different question: ‘Out of everything my client paid, how much is mine?’

Both look at the same profit dollars. The only difference is what you compare them to: markup compares them to what you paid, and margin compares them to what your client paid you.

Let's meet the sofa

Say you buy a sofa for $2,000 using your trade discount. You add a 50% on top (markup), which is $1,000, and sell it to your client for $3,000. That $1,000 is profit on the sofa

• Markup: $1,000 ÷ $2,000 cost = 50% (Compares what you paid)
• Margin: $1,000 ÷ $3,000 price = 33% (Compares what you kept)

Same $1,000 of profit, two different percentages. Because your selling price is always bigger than your cost, your margin will always come out lower than your markup. On that sofa, you keep 33 cents of every dollar your client pays you, not 50.

Why this matters

A markup mistake on one item might seem minor. Multiply it across every product in a project, then across all your projects, and it can make a real difference to your overall profitability.

Imagine you want to keep half of what your clients pay you, so you mark everything up by 50%. If your products cost $100,000, your client pays $150,000, leaving you with $50,000 before other expenses. That’s one-third of what your client paid, not half.

To keep half of what your client pays, you’d need to charge $200,000, which means a 100% markup.

Designers often use markup to set their prices, but profit margin tells you how much of each sale they actually keep as profit.

A simple way to price with margin in mind, not just markup

Say you buy a sofa for $2,000 and want a 40% profit margin. How much should you charge your client?

Rather than adding a 50% markup and hoping for the profit you want, use your target margin to calculate your price.

Here’s the math:

You want 40% of the selling price to be profit, which means the remaining 60% needs to cover the sofa's purchase price.

• Profit you want to keep: 40%

• Sofa purchase price: $2,000 (the other 60% of your selling price)

• Calculation: $2,000 ÷ 60% = $3,333

• Price to charge your client: $3,333

• Profit after paying for the sofa: $3,333 − $2,000 = $1,333

Your $1,333 profit is 40% of the $3,333 selling price, giving you the margin you wanted.

Make your markup do its full job

Your markup needs to cover more than the product itself. It also needs to account for the time and expenses involved in sourcing, ordering and delivering that product, plus your studio overhead, while leaving room for profit. If it only covers what you paid for the product, you could be left with very little to cover your software, your team, your studio and your own pay.

The same goes for your design fees. Billing clients for your time doesn't mean that revenue is all profit. You still need to account for your team's wages, the hours spent on work you can't bill to clients, and the overhead involved in running your studio. Without factoring in those expenses, it's easy to overestimate how much your design fees actually contribute to your bottom line.

Key Takeaway

Markup is what you add on top of what you paid. Margin is how much of the sale you have left after covering the product cost. A 50% markup on the sofa means you keep 33 cents of every dollar, not 50.

So when you set your prices, start with the margin you want to achieve, and let the markup follow.

What comes next

You know what you're charging. But do you know how much you're actually keeping?

At Nouvelle Financial, we help interior designers get clear on their margins across design fees, product sales and labour, so they can see which projects are making them money, where profit is slipping away and what to change to make their business more profitable without working more hours.

Ready to feel more confident in your numbers? Let’s chat.