How to Calculate Profit Margin on an Import Shipment

The Mistake That Quietly Eats Every Importer's Margin

If you price your product off the supplier's invoice alone, you're almost certainly overstating your margin — sometimes by a lot. Freight, insurance, customs duty, and clearance fees can easily add 15–30% on top of the product price before it ever reaches your warehouse. Price off that number, not the invoice, or your "healthy" margin is fiction.

The fix is simple: always calculate margin from your landed cost — product price + freight + insurance + duty + clearance fees — not the price you paid your supplier.

Margin vs. Markup: The Formula Importers Mix Up Most

These two numbers use the same inputs but answer different questions, and mixing them up is the single most common pricing mistake.

Profit Margin (%) = (Selling Price − Landed Cost) ÷ Selling Price × 100 This tells you: of every dollar a customer pays, what percentage is profit?

Markup (%) = (Selling Price − Landed Cost) ÷ Landed Cost × 100 This tells you: how much did you add on top of your cost?

A 50% markup is not the same as a 50% margin — a 50% markup on a $10 landed cost gives a $15 selling price, which is only a 33% margin. Know which one your business tracks, because "I want a 50% margin" and "I want a 50% markup" lead to very different selling prices.

Step-by-Step: Pricing From Landed Cost

1. Calculate your true landed cost

Add product price, international freight, insurance, customs duty, and any clearance or handling fees. Our free Landed Cost Calculator combines all of these into one per-unit number automatically.

2. Decide your target margin

This depends on your category, competition, and overhead — but decide the number before you set a price, not after.

3. Solve for the minimum selling price

Selling Price = Landed Cost ÷ (1 − Target Margin)

4. Check your actual margin at the price you'll really charge

Round numbers, competitor pricing, or a psychological price point (like $19.99) rarely land exactly on your target — so recalculate your real margin at the price you're actually going to charge.

Worked Example

Your landed cost per unit is $12 (product, freight, insurance and duty combined), and you want a 40% profit margin.

• Minimum selling price = $12 ÷ (1 − 0.40) = $12 ÷ 0.60 = $20.00
• If you actually price it at $19.99 instead: Margin = ($19.99 − $12) ÷ $19.99 = 39.97% — close enough to your 40% target.
• If you'd priced off the supplier invoice alone (say $9, before freight/duty) at $19.99: Margin = ($19.99 − $9) ÷ $19.99 = 55% — a healthy-looking number that's actually wrong, because it ignores $3 of real landed cost per unit.

Common Mistakes That Inflate a Margin on Paper

• Pricing off the supplier invoice instead of landed cost. This is the single biggest cause of margins that look good on a spreadsheet and disappear at tax time.
• Confusing margin and markup. A target expressed as the wrong one of these will consistently under- or over-price your product.
• Forgetting platform, payment, and return fees. Marketplace commissions, payment processing, and return/refund rates all quietly erode margin below the number a landed-cost calculation alone will show.
• Not re-checking margin after a discount. A discount changes your selling price but not your cost — always recalculate margin on discounted prices, not just full price. Our Discount Calculator shows the discounted price so you can check the resulting margin.

Skip the Manual Math

Once you know your landed cost, our free Profit Calculator works out both profit amount and margin percentage instantly from cost and selling price. If financing costs (interest, factoring fees) are part of what you're paying for this order, see how to finance an import purchase for how to fold those into your real cost before you price.

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This guide is for general informational purposes only and does not replace advice from an accountant or financial advisor. Pricing strategy depends on your specific costs, market and business goals.