Step-by-step guide to calculating landed cost for electronics imports: customs value, duty, MPF, HMF, freight, insurance, and total all-in cost. Includes formulas and examples for procurement teams.
Landed cost is the total cost of importing a product to its destination, including the purchase price, international freight, insurance, import duties (tariffs), US customs fees, and any destination charges. For electronics procurement, landed cost is the true all-in cost per unit — the number that matters for margin analysis and make-vs-buy decisions. Many procurement teams underestimate landed cost by forgetting MPF, HMF, or bundling costs incorrectly. The formula: Landed Cost = Unit Cost + Freight + Insurance + Customs Duty + MPF + HMF + Destination Charges.
US import duty is assessed on the 'customs value' of the goods, not the invoice total. CBP uses the transaction value method (the actual price paid) as the primary basis. This includes the cost of the goods plus any assists (molds, tooling, software provided to the manufacturer). Freight and insurance to the US port of entry are NOT included in customs value for US imports (US uses FOB value for most goods). If goods are invoiced in a foreign currency, CBP converts to USD using the weekly exchange rate published by CBP. Pro tip: if you purchase goods at 'first sale' (factory price) rather than 'last sale' (agent/distributor price), you may be able to declare the lower first-sale value as customs value, reducing your duty basis.
Import duty = Customs Value × Total Effective Tariff Rate. For a $10,000 shipment of microcontrollers from China: Customs Value = $10,000. Total rate = 0% MFN + 50% Section 301 + 10% Section 122 = 60%. Import duty = $10,000 × 60% = $6,000. For the same from Taiwan: $10,000 × 10% = $1,000. For USMCA-qualifying Mexico: $10,000 × 0% = $0. Always use the exact 10-digit HTS code rate, not a rough estimate.
The MPF is charged on most formal US Customs entries at 0.3464% of the entered value, with a minimum of $32.71 and a maximum of $614.35 per entry. MPF applies per entry, not per line item — so a single shipment invoice with 50 line items pays one MPF. MPF applies to goods from most countries except: USMCA (Mexico/Canada), US-FTAs with specific MPF waivers (Australia, Chile, Singapore, etc.). For China-origin electronics, MPF is an additional cost on top of tariffs. For a $10,000 shipment: MPF = $34.64 (0.3464% × $10,000). For a $200,000 shipment: MPF = $614.35 (capped at maximum).
The HMF is charged at 0.125% of the customs value for goods arriving by ocean vessel at a US port. It does NOT apply to air freight. For a $10,000 ocean shipment: HMF = $12.50. For a $200,000 shipment: HMF = $250. HMF applies regardless of country of origin, including USMCA goods. Unlike MPF, there is no cap on HMF. HMF is paid to the Harbor Maintenance Trust Fund and funds port operations.
Example: $10,000 shipment of STM32 microcontrollers from China via air freight to Chicago. Purchase price (FOB Shenzhen): $10,000. Air freight (Shanghai → Chicago): $350. Insurance (0.5% of value): $50. Customs value: $10,000 (FOB basis). Import duty (60% × $10,000): $6,000. MPF (0.3464% × $10,000): $34.64. HMF: $0 (air shipment, not ocean). US customs broker fee: $200 (estimate). Delivery to warehouse (customs to dock): $150. **Total landed cost: $16,784.64 per $10,000 of component value = 67.8% above purchase price.** The TariffTracker calculator computes the duty + MPF + HMF instantly when you enter the shipment value.
| Source / Scenario | Rate | Notes |
|---|---|---|
| Purchase price (FOB) | $10,000.00 | Customs value basis |
| Air freight (approx) | $350.00 | Not in customs value |
| Insurance (0.5%) | $50.00 | Not in customs value |
| Import duty (60%) | $6,000.00 | Sec 301 (50%) + Sec 122 (10%) |
| MPF (0.3464%, min $32.71) | $34.64 | Per entry |
| HMF (0.125%) | $0 | Air only — $0 |
| Customs broker fee (est) | $200.00 | Varies by broker |
| US delivery (est) | $150.00 | Port to warehouse |
| Total landed cost | $16,784.64 | 67.8% above purchase price |
For US imports, the dutiable value is typically based on the FOB (Free on Board) value — the price at the foreign port of departure. International freight and insurance from the foreign port to the US are NOT included in the dutiable value. This differs from the CIF (Cost-Insurance-Freight) basis used by many other countries.
Yes: for shipments under $9,440 (approx), use the minimum: $32.71. For shipments between $9,440 and $177,310, calculate 0.3464% of the shipment value. For shipments over $177,310, use the maximum: $614.35. TariffTracker calculates MPF automatically when you enter a shipment value.
Duty drawback allows US importers to recover up to 99% of duties paid on goods that are subsequently exported. If you import components, manufacture a product in the US, and export that product, you can file for drawback. The process involves CBP Form 7553 and maintaining detailed import/export records. A customs broker specializing in drawback is essential for complex programs.
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