Define what landed cost includes
Landed cost usually begins with the product and the cost required to move it to the point where it can be sold or fulfilled in the destination market. The exact boundary depends on the decision, accounting policy, incoterms, channel, and operating model.
Document included and excluded items. Common components include product cost, packaging, origin handling, freight, insurance, duties, import taxes, brokerage, port or carrier fees, warehousing, and inbound transport.
Build the calculation at the right unit
Calculate at SKU-shipment level, then allocate shared costs using a defensible driver such as units, weight, volume, or value. Preserve the original currency, exchange rate, date, tariff classification assumption, and source.
Separate recoverable taxes and accounting treatment from economic cost with finance and qualified specialists. The model should support decisions without pretending to replace customs, tax, or legal advice.
Extend to contribution economics
Add channel fees, payment cost, pick-and-pack, last-mile delivery, discounts, creator or media cost, expected returns, support, and warranty where the decision concerns profitability. This creates an order-level contribution view rather than a narrow freight calculation.
Model base, upside, and downside cases for demand, freight, duties, exchange rate, returns, and acquisition cost. Highlight the assumptions that can break the launch thesis.
Operate the model as costs change
Assign owners and refresh frequencies to tariff, carrier, warehouse, payment, and return assumptions. Compare modeled and actual cost by shipment, SKU, channel, and market.
Use variance to improve purchasing, pricing, routing, assortment, and free-shipping decisions. A landed-cost model creates value when it changes action.