Decide which costs belong in the total
Name the destination and decide which costs the estimate covers. List goods, freight, insurance, duties, handling, delivery, and payment charges separately. Mark each figure as an actual cost, a quote, or an assumption. Check for charges already included in another quote.
- Invoice and funding currency
- Separately confirmed customs value
- Count of sellable units and destination warehouse
Keep the rate and the FX markup separate
The calculator takes an exchange rate in foreign-currency units per US dollar. It converts the goods amount to dollars, then adds any separate FX markup as a percentage of that amount. If the entered rate already includes the markup, enter zero in the markup field.
- Keep duty assumptions separate from customs classification
- Try another exchange rate or freight amount
- Check the cost per unit before approving the order
Reconcile the estimate with the final bills
After the shipment closes, replace the assumptions with confirmed invoices and record where costs differed from the budget. The model is a planning tool. It does not prepare a binding customs entry or automatically identify every duty, tax, or charge.