Demurrage and detention are different cost clocks

Both charges relate to carrier equipment, but they usually apply at different stages. Demurrage generally concerns the time a laden container remains inside the terminal beyond the allowed free period. Detention generally concerns the period after the container leaves the terminal until the empty equipment is returned to the carrier or nominated depot. Exact definitions, calendars and tariffs can vary by carrier, port, terminal and contract, so the booking terms remain the controlling reference.

Start with free time, not with the invoice

The most effective control starts before arrival. Confirm the number of free days, when the clock starts, whether weekends or holidays count, where the empty container must be returned and which party is responsible for each handover.

Record free-time terms at booking and again before vessel arrival.
Track discharge, availability, customs release, gate-out and empty-return dates separately.
Assign one owner for trucking and one owner for document readiness.
Escalate expected delays before free time expires, not after charges begin.

Common operational causes

Charges often grow because several small delays overlap: missing documents, customs inspection, terminal congestion, truck shortages, delivery-site delays or uncertainty over the empty-return location. A container can be operationally ready while one missing release or appointment still prevents movement.

A practical control sequence

Before departure: confirm free time, destination charges and equipment-return rules.
Before arrival: prepare import or transit documents and delivery instructions.
At discharge: confirm actual availability and any customs or terminal hold.
Before gate-out: secure truck capacity and delivery slot.
After unloading: return the empty container promptly and retain proof of return.

When a delay is outside your control

Keep evidence. Terminal notices, customs examination records, carrier instructions, truck appointment failures and written correspondence can matter when requesting a review or commercial waiver. A waiver is never automatic, but a documented timeline is stronger than a general complaint.

How SEPINDAR approaches the risk

For sea and multimodal shipments, SEPINDAR coordinates the movement around release status, trucking, border or port handovers and final delivery. The objective is to identify the next deadline before it becomes a charge. For a shipment-specific review, see our Sea Freight service or send the route and container details.