One line on the invoice, one big operational difference
Commercially the terms differ by exactly one block of work: import clearance, duties, and taxes. Operationally that block is the hardest part to perform from abroad. A DDP seller must clear customs in a country where it may have no legal presence — needing an importer of record, possibly a tax registration, and a broker willing to file for a foreign entity. This is the DDP trap: VAT/GST paid by a non-resident seller is often unrecoverable, quietly adding 15–25% to landed cost in many markets.
DAP keeps the natural division: the seller manages transport (which it can control), the buyer manages its own country's customs (which it is legally equipped for). Most B2B trade that wants 'delivered' service is better served by DAP than DDP.
Where each term actually gets used
DDP dominates cross-border e-commerce and spare-parts logistics, where the shipper wants the receiver to experience a domestic-style delivery with no surprise charges — and where sellers build duty into price and use specialised IOR (importer of record) services. DAP dominates B2B container trade. For forwarders, a DDP request is a margin opportunity wrapped in a compliance obligation: it bundles brokerage, duty outlay financing, and delivery — priced properly it is excellent business; priced casually it is how desks discover unrecoverable VAT the hard way.

