What landed cost actually includes.

What one unit has cost you by the time it is sitting in your warehouse ready to sell. Not what the factory charged. Everything it took to get it there.

The short answer

Landed cost is the supplier invoice plus everything it took to get the goods here, divided by the units that actually travelled. It stops at your warehouse door: what the marketplace takes, what the card processor takes and what returns cost you all come afterwards, and they belong in their own stack.

Six things between the factory and the shelf

Only the first one arrives as a price per unit. The rest arrive as bills for a whole shipment.

One shipment, worked out

A thousand units. Supplier invoice

,100, ocean freight and origin charges
,180, duty
90, customs brokerage and port charges
50, marine insurance $40, inland delivery and receiving 20. Total $4,880, or $4.88 a unit.

The number on the invoice was

.10. The number worth pricing against is $4.88. Costing against the invoice alone understates this unit by 36% before a single selling cost has been taken off it. Order 2,000 units instead and the shipment charges barely move, so they land on twice as many units: the biggest components of landed cost scale with the shipment, not with the invoice.

What does not belong in it