Landed Cost Calculation for Importers: How to Get the Number That Actually Matters

Most importers budget based on the FOB invoice price and get surprised at the port. A product that costs $5.00 per unit from a Chinese supplier can carry a true landed cost of $6.80 by the time it reaches your warehouse, a 36% premium over the supplier price. If you set your retail price at $12 expecting a 58% margin, your actual margin is 43%. In the current tariff environment, with Section 301 tariffs on China, 50% Section 232 duties on steel and aluminum, and a 10% Section 122 universal surcharge effective February 24, 2026, the duty component alone can represent 30% to 80% of the original product cost. Use our Product Landed Cost Calculator to calculate the true per-unit cost of your imports, and set your selling price with the Pricing Strategy Calculator.

The Landed Cost Formula

Landed cost is the total cost of getting a product from a foreign supplier's warehouse to your warehouse door. The formula:

Landed Cost = Product Cost + International Freight + Insurance + Customs Duties and Tariffs + Customs Brokerage Fees + Domestic Transportation

Each component has specific calculation rules, and getting any one wrong skews your margin math.

What Goes Into Each Component

Product cost is what you pay the supplier. This is typically the FOB (free on board) price at the origin port. Under FOB terms, the supplier is responsible for getting goods onto the vessel. You are responsible for everything after that.

International freight is the cost of transporting goods from the origin port to the US port of arrival. Ocean LCL (less than container load) is priced per cubic meter. Ocean FCL (full container load) is priced per container. Air freight is priced per kilogram. Air freight from Asia to the US costs 4 to 6 times more per pound than ocean LCL, according to FreightFigures' 2026 landed cost guide.

Insurance covers loss or damage during international transit. Standard coverage is 0.3% to 0.5% of the insured value (product cost plus freight).

Customs duties and tariffs are where most landed cost errors occur. US customs duties are layered. Multiple tariff programs can apply to the same product simultaneously:

• Base MFN duty: determined by the HTS (Harmonized Tariff Schedule) code. Rates range from 0% (many raw materials and electronics) to 32% (synthetic apparel).
• Section 301 tariffs (China only): 7.5% to 25% depending on which list the product falls under. Lists 1 through 3 carry 25%. List 4A carries 7.5%.
• Section 232 tariffs (steel, aluminum, copper): as of April 2026, base metal articles pay 50% on full customs value and derivative articles pay 25%.
• Section 122 universal tariff: a 10% surcharge on most imports from most countries, effective February 24, 2026. USMCA-qualifying goods from Canada and Mexico are exempt. Products subject to Section 232 are also exempt.

Customs brokerage and fees include the broker's entry fee ($150 to $250 per entry for standard commercial shipments), the Merchandise Processing Fee (MPF) at 0.3464% of entered value (minimum $31.67, maximum $614.35 per entry), and the Harbor Maintenance Fee (HMF) at 0.125% of cargo value for ocean shipments.

Domestic transportation is the final leg from port to warehouse. Drayage from a major port typically costs $400 to $1,200 depending on distance. LTL or FTL linehaul to your final destination adds $200 to $800.

Step-by-Step: Landed Cost Calculation

Consider an importer buying 500 units of an electronic accessory from China at $12.00 per unit FOB. The shipment is ocean LCL at 2.5 cubic meters. The HTS code carries a 0% base MFN duty, and the product falls under Section 301 List 4A at 7.5%.

1. Product cost: 500 x $12.00 = $6,000
2. Ocean freight (LCL): 2.5 CBM at $85/CBM = $212.50
3. Insurance: 0.4% of ($6,000 + $212.50) = $24.85
4. Customs duties: Base MFN at 0% ($0) plus Section 301 at 7.5% ($450) plus Section 122 at 10% ($600). Total duties: $1,050
5. Brokerage and fees: Entry fee $175 plus MPF $31.67 (minimum) plus ISF $35 = $241.67
6. Drayage and delivery: $650 drayage plus $380 LTL to warehouse = $1,030

Total landed cost: $6,000 + $212.50 + $24.85 + $1,050 + $241.67 + $1,030 = $8,559.02

Per-unit landed cost: $8,559.02 / 500 = $17.12

The supplier price was $12.00. The landed cost is $17.12, which is 43% higher. If you sell this product at $30, your gross margin is 43% ($12.88 per unit), not 60% ($18.00 per unit) as the FOB price alone would suggest.

Tariff Stacking: Why Origin Country Matters

A Vietnam-origin product with a 0% MFN duty has a lower landed cost than a China-origin product with a 0% MFN duty if the Section 301 surcharge on the China product is 7.5% or higher. The only way to make accurate sourcing comparisons is to calculate the full duty stack for each origin country and HTS code combination, as explained in USTradeStack's 2026 landed cost guide.

The Section 122 universal tariff is scheduled to expire July 24, 2026. If it expires, the total duty rate on the China-origin product in the example above drops from 17.5% to 7.5%, and the per-unit landed cost drops from $17.12 to $16.12. Model both scenarios when making purchasing decisions.

Common Mistakes in Landed Cost Calculation

Budgeting on FOB price alone. This is the most common and most expensive mistake. The FOB price tells you what you pay the supplier. It tells you nothing about what the product costs by the time it sits in your warehouse ready to sell.

Using the wrong HTS code. The HTS code determines the base MFN duty rate and whether Section 301, 232, or other special tariffs apply. Misclassifying a product can result in underpayment of duties (leading to CBP penalties) or overpayment (eroding margin unnecessarily). Use the USITC HTS database to look up the correct code, and confirm with a licensed customs broker.

Forgetting the MPF and HMF. These are small percentages but they apply to every formal entry. The MPF at 0.3464% on a $50,000 shipment is $173.20. The HMF at 0.125% on the same shipment is $62.50. Combined, that is $235.70 that many importers forget to budget.

Not modeling air freight scenarios. If you air-freight to meet a stockout, your per-unit freight cost can double or triple. A product with a 40% margin via ocean freight may have a 15% margin via air freight. Model both scenarios before committing to air.

Ignoring demurrage and detention risk. If your container sits at the port beyond the free days, charges accrue at $100 to $300 per day. A one-week delay can add $700 to $2,100 to your landed cost, which on a 500-unit shipment is $1.40 to $4.20 per unit.

Related Tools on ProfessionCalculators.com

• Product Landed Cost Calculator to calculate true per-unit import cost
• Pricing Strategy Calculator to set selling prices based on landed cost
• Wholesale Price Calculator to calculate wholesale pricing from landed cost
• Amazon FBA Fee Calculator to add FBA fees on top of landed cost for Amazon sellers
• Break-Even Ad Spend Calculator to determine how much you can spend on advertising per unit

For a deeper look at margin math, read our guide on how to calculate profit margin.

FAQ

What is the difference between FOB price and landed cost? FOB price is what you pay the supplier for the product, including their cost to get it onto the vessel at the origin port. Landed cost adds international freight, insurance, customs duties, brokerage fees, and domestic transportation to get the product to your warehouse. Landed cost is typically 25% to 50% higher than FOB for China-origin goods.

How does the Section 122 universal tariff work? The Section 122 tariff is a 10% surcharge on most imports from most countries, effective February 24, 2026. USMCA-qualifying goods from Canada and Mexico are exempt. Products already subject to Section 232 tariffs are also exempt. The tariff is scheduled to expire July 24, 2026.

Should I use CIF or FOB for duty calculation? US customs uses the transaction value, which is usually FOB plus any post-FOB costs paid to the seller. Most brokers declare on FOB in practice. EU and most other countries use CIF (cost, insurance, freight) as the basis for duty calculation.

How do I find the correct HTS code for my product? Use the USITC HTS database to search by product name or code. Confirm your classification with a licensed customs broker, as misclassification can lead to CBP penalties or duty overpayment.

What is the Merchandise Processing Fee and how much is it? The MPF is a CBP user fee of 0.3464% of declared commercial value, with a minimum of $31.67 and a maximum of $614.35 per entry (2026 rates). It applies to all formal entries (shipments valued over $2,500). USMCA-qualifying imports from Canada and Mexico are exempt.

Conclusion

Landed cost is the only number that matters for pricing decisions, margin analysis, and supplier comparison. The FOB price is just the starting point. By the time your product clears customs and arrives at your warehouse, you have paid for freight, insurance, layered duties, brokerage, and domestic transportation. In the 2026 tariff environment, the duty stack alone can add 17.5% to 40% to your product cost depending on origin and HTS code. Calculate landed cost for every SKU, model both origin countries and tariff scenarios, and base your pricing on the number that reflects what the product actually costs you.