DDP is used when the cost of supply is relatively stable and easy to predict. The seller is subject to the most risk, so DDP is normally used by advanced suppliers; however, some experts believe that there are reasons U.S. exporters and importers should not use DDP.
U.S exporters, for example, may be subject to value-added tax (VAT) at a rate of up to 20%.
Moreover, the buyer is eligible to receive a VAT refund. Exporters are also subject to unexpected storage and demurrage costs that might occur due to delays by customs, agencies, or carriers. Bribery is a risk that could bring severe consequences both with the U.S government and a foreign country.
For U.S. importers, because the seller and its forwarder are controlling the transportation, the importer has limited supply chain information. Also, a seller may pad their prices to cover the cost of liability for the DDP shipment or markup freight bills.
If DDP is handled poorly, inbound shipments are likely to be examined by customs, which causes delays. Late shipments may also occur because a seller may use cheaper, less reliable transportation services to reduce their costs.