The Landed Cost Formula, Explained Line by Line
Landed cost is what one unit actually costs you by the time it sits in your warehouse. The formula is: Product Cost + Shipping + Duties & Taxes + Insurance + Handling + Other Fees, divided by the number of units. Everything below is just detail on what belongs in each bucket.
Why the Supplier Quote Is Never Your Real Cost
A supplier quotes you $4.20 per unit. You budget $4.20. Then the invoice arrives and your real number is $6.35.
That gap is where importers lose money. It is not one big surprise fee. It is eight small ones that nobody itemized for you up front. The landed cost formula exists to force every one of them onto the page before you commit to an order.
The Formula, Bucket by Bucket
| Bucket | What goes in it | Where to find the number |
|---|---|---|
| Product Cost | Unit price × quantity, tooling or mold fees, sample costs you agreed to absorb | Supplier proforma invoice |
| Shipping | Ocean or air freight, inland trucking on both ends, fuel surcharge, terminal handling | Freight forwarder quote |
| Duties & Taxes | Import duty based on HTS code, any additional tariffs, MPF, HMF | Customs broker or your own HTS lookup |
| Insurance | Cargo insurance, usually a small percentage of declared value | Forwarder or standalone policy |
| Handling | Customs brokerage fee, ISF filing, devanning, warehouse receiving | Broker and 3PL rate sheets |
| Other | Bank wire fees, FX spread, customs bond, inspection fees | Your bank and broker |
Written out:
Total Landed Cost = Product + Shipping + Duties & Taxes + Insurance + Handling + Other
Per-Unit Landed Cost = Total Landed Cost ÷ Units Received
Note the second line says units received, not units ordered. If 12 arrive damaged, those 12 did not disappear from your cost base. They just moved their share onto every other unit.
Worked Example 1: LED Desk Lamps, Shenzhen to Los Angeles
500 units, quoted at $8.40 each FOB Shenzhen, shipped LCL by ocean.
| Line item | Amount | Notes |
|---|---|---|
| Product cost | $4,200.00 | 500 × $8.40 |
| Ocean freight (LCL, 2.8 CBM) | $610.00 | Forwarder quote |
| Origin terminal handling | $95.00 | |
| Destination terminal handling | $140.00 | |
| Drayage to warehouse | $285.00 | Port to 3PL |
| Import duty and tariffs | $1,738.80 | Illustrative figure. Look up your own rates — see our duty guide. |
| Federal user fees | $38.83 | MPF hit the per-entry floor |
| Cargo insurance | $32.00 | Roughly 0.5% of declared value |
| Customs brokerage | $125.00 | Per-entry fee |
| ISF filing | $45.00 | |
| Warehouse receiving | $75.00 | |
| Wire transfer + FX spread | $68.00 | Bank fee plus the rate your bank actually gave you |
| Total landed cost | $7,452.63 | |
| Per unit | $14.91 | 500 units |
The quote was $8.40. The real number is $14.91, which is 78% higher. Duty alone accounts for more than the freight. If you had priced your retail off $8.40 with a 3x markup, you would have listed at $25.20 and walked away with a margin of about 41% instead of the 67% you planned for. On 500 units that is roughly $3,250 of profit you never see.
The duty figure above is illustrative — yours depends entirely on your product's classification and country of origin, and it may be higher or lower. Our guide to calculating import duty shows you how to build that number and where to look each rate up.
You can run this same breakdown on your own numbers with our ready-made landed cost template instead of rebuilding the spreadsheet from scratch.
Worked Example 2: Cotton Tote Bags, Ningbo to New York
2,000 units at $1.15 each. Higher quantity, cheaper unit, and the cost structure behaves completely differently.
| Line item | Amount |
|---|---|
| Product cost (2,000 × $1.15) | $2,300.00 |
| Ocean freight (LCL, 4.1 CBM) | $780.00 |
| Terminal handling, both ends | $255.00 |
| Drayage | $340.00 |
| Import duty and tariffs (illustrative) | $602.60 |
| Federal user fees | $36.46 |
| Insurance | $18.00 |
| Customs brokerage + ISF | $170.00 |
| Warehouse receiving | $110.00 |
| Wire + FX | $52.00 |
| Total landed cost | $4,664.06 |
| Per unit | $2.33 |
Here the unit price more than doubled, from $1.15 to $2.33. Cheap, bulky, high-duty goods get hit hardest. Freight is charged on space, not value, so a $1 item can carry the same freight cost as a $50 item sitting in the same carton.
That is the single most useful thing the formula tells you: the cheaper your product, the more the non-product costs matter.
Per-Unit vs Total: Only One of Them Is Useful
Total landed cost tells you what to wire. Per-unit landed cost tells you whether the business works.
Every pricing decision you make — retail price, marketplace fee tolerance, ad spend ceiling, discount depth — runs off the per-unit number. If you only ever calculate the total, you know what the order cost but not whether you should have placed it.
Two habits worth building:
- Recalculate per unit after the shipment lands, using actual invoices rather than quotes. Freight quotes drift. Detention charges appear. Your estimate and your reality will differ by 5–15% almost every time.
- Track the gap between estimate and actual. After three or four shipments you will know your own personal fudge factor, and your estimates get accurate.
Common Mistakes
- Using the FOB price as the customs value when your terms are CIF. The valuation basis changes what duty is assessed on. Get this wrong and every duty figure downstream is wrong.
- Forgetting the FX spread. Your bank's wire fee is visible. The 1.5–3% they take on the exchange rate is not. On a $20,000 order that is $300–600 that never appears as a line item.
- Splitting freight evenly across SKUs. If one product is bulky and another is dense, even splitting silently overprices one and underprices the other. See our guide on allocating freight across SKUs.
- Ignoring the annual customs bond. It is a fixed yearly cost, so importers leave it out. Divided across a low shipment volume it is real money per unit.
- Budgeting zero for demurrage and detention. These are not rare. Ports get congested, paperwork gets held, and the clock runs. Budget something.
- Calculating landed cost once and never again. Freight rates move constantly. A number from eight months ago is not a number.
Frequently Asked Questions
What is the difference between landed cost and COGS?
Landed cost is the full delivered cost of getting inventory into your warehouse. COGS is what you recognize as expense when that inventory sells. For most importers landed cost per unit becomes the COGS per unit, but COGS may also include costs incurred after arrival, like kitting or repackaging.
Do I include marketplace fees in landed cost?
No. Landed cost stops at your warehouse door. Amazon referral fees, FBA fees, and shipping to the end customer are selling costs, not landed costs. Keep them separate or you will not be able to tell a sourcing problem from a channel problem.
How do I calculate landed cost before I know the freight rate?
Use a placeholder based on a rough rate per CBM or per kilogram for your lane, mark the figure as an estimate, then replace it with the real quote before you place the order. An estimate you have flagged is useful. An estimate you have forgotten is dangerous.
Should landed cost include the cost of samples?
If the samples were for the product you are now ordering, yes, spread across the first production run. If they were for products you rejected, that is a sourcing expense, not a cost of this shipment.
What is a normal gap between supplier price and landed cost?
For ocean freight from Asia to the US, 25–60% above the unit price is a common range, and it can exceed 100% for cheap, bulky, or high-duty goods. There is no universal multiplier — you have to run the numbers on your specific product. Our free landed cost Excel template does the arithmetic for you.
Last updated: September 10, 2026.