Import Cost Calculator

Written out

Total import cost is goods + international freight + insurance + duty + non-recoverable taxes + brokerage + port and terminal charges + inland transport + any inspection or storage. Divided by the units in the shipment, it gives the landed cost per unit.

The distinction that matters throughout is between recoverable and unrecoverable amounts. Import VAT reclaimed by a registered business is working capital; duty and every service charge are cost.

Putting numbers to it

1,000 units at $18, $18,000. Sea freight $2,400, insurance $95, duty at 6.5% on the CIF value of $20,495 is $1,332. Customs brokerage $185, port and terminal handling $340, inland delivery $420.

Total $22,772, or $22.77 a unit. Against the $18 invoice price, that is 26.5% of additional cost.

Import VAT of $4,365 sits on top as a cash flow item and is excluded from the cost figure. Including it would give a landed cost of $27.14 and would make the product look 19% more expensive than it is.

Where it is unreliable

The charges nobody quotes are the ones that vary most: demurrage if a container is not collected in time, detention if it is not returned, customs examination fees if the shipment is selected for inspection, and storage if clearance is delayed. Any of these can add several hundred dollars without warning.

Exchange rate movement between order and payment is the other unquoted variable. On a $18,000 order with a three-month lead time, a 5% currency move is $900, larger than the brokerage, the port charges and the inland delivery combined.

How to act on this

Build the calculation as a template and fill it in for every shipment, comparing the forecast against the actual invoices when they arrive. The variances are where the learning is, and after three shipments the estimate becomes reliable.

Then hold a contingency of 5% to 8% in the landed cost used for pricing. That covers the routine surprises without pricing for the worst case, and it is far better than discovering the gap in the margin report.

Container economics and order sizing

Most of the fixed charges: brokerage, terminal handling, customs entry, inland delivery. Are per shipment rather than per unit, which means the cost per unit falls sharply with shipment size.

On the example, the fixed charges total $945. Across 1,000 units that is $0.95 each. Across 300 units it would be $3.15, and across 3,000 units $0.32. Sea freight behaves similarly, since a full container costs less per cubic metre than a shared one.

That pulls in the opposite direction from carrying cost, which rises with order size. The two together are exactly the economic order quantity trade-off, with the ordering cost term being unusually large for imports, which is why importers rationally order much larger quantities than a domestic buyer of the same product would, and why the calculation is worth running rather than defaulting to a container because that is what everyone does.

Currency exposure sits inside this calculation and is easy to miss, because the goods, the freight and the duty are often quoted in different currencies. A landed cost model built at one exchange rate can be several percent out by the time payment is made, and on a thin margin that is the difference between viable and not.