Demurrage & detention
Demurrage and Detention in Australia: What They Are and How to Stop Paying Them
Two charges, two different parties, one very expensive misunderstanding. Here is exactly how each works at Australian ports and how to keep both at zero.
In short
Demurrage is charged when a container stays inside the terminal beyond its free time. Detention is charged when you keep the container outside the terminal — at your yard or warehouse — beyond the carrier’s free days. Demurrage is a terminal or line storage charge; detention is a container-hire charge. Both escalate in tiers, both are avoidable with planning, and both are managed as standard inside international logistics management.
Key takeaways
- Demurrage relates to the container sitting at the terminal; detention relates to you holding the box.
- Free time is negotiable at booking and almost impossible to negotiate once it has expired.
- Rates escalate in tiers — day 8 costs far more than day 4, and day 15 more again.
- Most demurrage in Australia is caused by late or incorrect documents, not by transport.
- A biosecurity direction can consume your entire free time before you touch the cargo.
Demurrage vs detention, side by side
| Demurrage | Detention | |
|---|---|---|
| What it charges for | Container occupying terminal space | Container being off-hire to you |
| Charged by | Terminal or shipping line | Shipping line |
| Clock starts | On discharge from the vessel | When the container leaves the terminal |
| Clock stops | When the container is collected | When the empty is returned to the nominated depot |
| Typical free time | A few days from availability | Several days from pickup |
| Usual cause | Documents, clearance or biosecurity delay | Slow unpack, no depot slot, congestion at return |
Free time varies by carrier, port, container type and contract. Reefers and specialised equipment almost always have shorter free time than dry boxes.
Why Australian importers get caught
- Documents arrive late. The entry cannot be lodged without a correct commercial invoice, packing list and bill of lading.
- The invoice and packing list disagree. A mismatch triggers questions, and questions consume days.
- A biosecurity direction is issued. Inspection and treatment can absorb the whole free period. See Australian biosecurity requirements.
- Arrival lands on a long weekend. Free time keeps running when your warehouse does not.
- No empty return slot. Depots run to capacity; a container you have finished with can still be accruing detention.
- Nobody owns the clock. When the forwarder, broker and transport operator are three separate companies, no one is watching the whole timeline.
Seven habits that keep these charges at zero
- Negotiate free time at booking, in writing, and record it against the shipment.
- Require draft documents from your supplier before the vessel sails, not after.
- Reconcile the commercial invoice, packing list and bill of lading before departure.
- Pre-lodge the customs entry so release is immediate on arrival.
- Book transport and an unpack slot against the estimated arrival, then revise it as the ETA moves.
- Book the empty return slot at the same time as the delivery.
- Track the free-time expiry date per container and escalate two days before it lapses.
This is exactly what a managed logistics program does automatically. See container shipping and import logistics management.
Already accruing charges? Do this now
Establish today’s exact figure and the next escalation date, because the tier change usually costs more than a day of effort. Confirm what is blocking release — documents, a customs query or a biosecurity direction — and fix that single item. Book transport for the earliest available slot even if release is not yet confirmed. If the delay was caused by the carrier, terminal or a government agency, request a waiver in writing with evidence and dates. Then debrief and change the process, because the same failure repeats otherwise.
Avoiding the charges
A practical plan for keeping demurrage and detention at zero
Demurrage and detention are the most avoidable costs in Australian importing, and the most common. They are charged per container per day, they escalate in tiers, and by the time you see the invoice the money is already spent. Everything below is process, not luck.
Get the documents before the vessel sails
You cannot lodge a customs entry without a commercial invoice, packing list and bill of lading that agree with each other. Chasing those after arrival is what burns the first three days of free time. We request documents at container loading and check them immediately, not on arrival.
Lodge the entry pre-arrival
Australian import declarations can generally be lodged before the vessel berths. Doing so means the container is available to move on day one instead of day four. This single discipline eliminates most demurrage exposure on its own.
Book transport against availability, not schedule
A vessel arriving on Tuesday does not mean containers are available Tuesday. Discharge, terminal availability and slot capacity all intervene. Booking a truck for the scheduled date and having it fail wastes a day of free time and a cancellation fee.
Know your free days before you book, not after
Free time differs by carrier, by trade and by contract, and demurrage free days and detention free days are often different numbers. We confirm both at booking and work backwards from them.
Plan the unpack, and the empty return
Detention runs until the empty container is back at the nominated park — which may not be where it was collected, and may have its own booking queue. If your site cannot unload promptly, unpacking at a depot stops the clock earlier and is usually cheaper than the detention it prevents. See warehousing and unpack services.
If the empty is already stuck and you cannot get it back, that is a different problem with its own fixes: see container detention charges when you cannot return the empty.
Deal with holds immediately
A customs or biosecurity hold does not pause the clock. The correct response is to resolve the hold and, in parallel, apply for an extension or move the container to a bonded or storage facility if the delay will be long. Waiting passively is the expensive option.
When to negotiate and when to pay
Where a delay was genuinely caused by the carrier or the terminal, an extension or waiver is often achievable if it is requested promptly and evidenced. Where it was caused by late documents, it will not be. Knowing which situation you are in saves time.
Escalation tiers matter
Charges typically rise in steps — the tenth day costs considerably more than the fourth. If a container is going to be late, the priority is to get it out before the next tier, even if that means paying for expedited transport.
The reporting question worth asking
Ask your logistics provider what your demurrage and detention spend was last quarter and what caused it. If they cannot answer, nobody is managing it. We treat it as a measured performance indicator with a target of zero, which is part of what international logistics management means in practice.
Related: landed cost, freight planning, customs clearance coordination and FCL shipping.
Demurrage and detention questions
What is the difference between demurrage and detention?
Demurrage is charged when a container remains inside the terminal beyond its free time. Detention is charged when you keep the container outside the terminal beyond the carrier free days. Demurrage is about terminal space; detention is about container hire.
How much free time do I get?
It depends on the carrier, port, container type and your contract. Dry containers commonly get a few days of demurrage-free time and several days of detention-free time; reefers and specialised equipment get considerably less. Always confirm it in writing at booking.
Can demurrage be waived?
Sometimes, where the delay was clearly caused by the carrier, the terminal or a government agency rather than the importer. A waiver request needs evidence, dates and a clear causal chain, and it needs to be lodged promptly.
Who pays demurrage and detention?
Almost always the consignee, regardless of who caused the delay. That is why the charges must be managed, not merely explained after the invoice arrives.
Does a biosecurity hold stop the clock?
Generally no. Free time usually continues to run during an inspection or treatment, which is why biosecurity risk should be assessed before the goods are shipped.
Related guides
Landed cost · Container sizes and types · Freight planning · How to avoid demurrage and detention · International logistics management
Two situations reliably turn free time into demurrage: no import declaration having been lodged, and a container directed for a biosecurity inspection. Both keep the terminal and shipping line clocks running while they are resolved.
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