Demurrage and Detention at Pakistani Ports: What the Invoice Actually Means
Free days, per-diem charges, and who pays when the container sits. Plain-language guide for Pakistan importers and exporters.
Demurrage and detention show up on invoices when containers sit longer than agreed free time. Shippers call us angry. Often the charge is contractually valid — but preventable with clearer planning.
Demurrage vs Detention — Different Clocks
Demurrage — charged by the shipping line (or terminal on some tariffs) when a loaded import container stays at the port or terminal beyond free days.
Detention — charged when you hold the line's empty or laden container outside the terminal past the allowed period — depot, factory premises, or inland location.
Export shipments can trigger detention if empties are kept too long before return. Imports trigger demurrage at port and detention if you delay returning the empty after destuffing.
Different free day counts. Different per-diem rates. Same pain if ignored.
Free Days — Read the Tariff
Standard import contracts often include 5–14 free days at port depending on line, box size, and commodity. Promotional periods change. Do not assume last shipment's free days apply to this one.
Ask at booking:
- How many free demurrage days at destination?
- How many detention days for container use?
- Are weekends and holidays included in free time calculation?
Common Pakistan Scenarios
Import hold for customs exam: GD query or physical examination stops release. Demurrage clock may still run unless line grants extension — extensions are not automatic.
LC document delay: Bank takes days to approve documents while container sits at terminal. Demurrage accrues. Finance and logistics must run in parallel.
Exporter late SI: Container gated in but docs incomplete — rolled cargo avoids demurrage at origin port but may incur other costs. Different problem, same lesson: paperwork timing.
A Karachi importer last quarter paid significant demurrage because broker clearance completed on day 9 and free days were 7 — the delay was HS code query, not carrier fault.
Who Pays — Contract vs Commercial Reality
Contractually the party named on the B/L terms often bears demurrage. Commercially buyers and sellers negotiate who pays in the PO. If your contract is silent, disputes follow the invoice.
Forwarders typically pass through line demurrage invoices. We help dispute erroneous charges and request extensions when carrier policy allows — we do not absorb demurrage as a standard service.
How to Reduce Exposure
- Clear customs broker before vessel arrives — pre-file where possible
- Finance team aligned on LC presentation timeline
- Trucking booked for destuffing day of release, not "we will arrange next week"
- Exporters return empties to depot within detention free days
- Track container free time in the same calendar as cut-offs
Extension Requests
Lines sometimes grant free time extensions for customs exams or force majeure — not for disorganisation. Apply with evidence before days expire. After invoice issuance, negotiation is harder.
MTX Role
We flag arrival dates early, coordinate broker handoff, and notify when containers approach free day limits on tracked shipments. We cannot stop a lawful demurrage clock if clearance is late — we can help you see it coming.
Treat free days like cut-offs: a hard operational deadline, not a suggestion.