Meaning
Logistics charges applied to cargo that remains in a terminal beyond the allotted free time. Shipping lines use port demurrage to discourage the use of terminals as long-term storage areas. It acts as a pressure mechanism to keep the flow of containers moving through the gateway.
Detention Penalty
Carriers charge a daily rate for every container that sits on the dock past the grace period. This port demurrage fee often increases as the duration of the stay grows longer. It reflects the cost of occupying space and the missed opportunity for the shipping line to use the equipment elsewhere.
In some cases, the daily cost can exceed the value of the goods inside the container if the delay lasts for several weeks.
Time Allowance
Most ports provide a window of four or five days for the importer to collect their goods. Negotiation of this period is a common part of service level agreements for large shippers. Longer free time helps a company manage delays in inland transportation without incurring extra costs.
Supply Congestion
High volumes of unclaimed containers lead to bottlenecks and slow down the entire supply chain. Managing port demurrage effectively is essential for maintaining the landed cost of imported materials. A failure to move cargo quickly can turn a profitable order into a financial loss.