If you've ever been surprised by a bill that showed up after your cargo cleared customs, it was very likely demurrage or detention; and it's one of the most avoidable costs in the entire import process.
What's the difference between demurrage and detention?
- Demurrage is charged for the time your container sits inside the port terminal beyond the free days allowed; whether that's because customs clearance is taking longer than expected, documentation isn't ready, or you simply haven't arranged pickup yet.
- Detention is charged for the time you hold the shipping line's container outside the terminal beyond the agreed free time; for example, while you're unpacking it at your warehouse before returning the empty container to the depot.
Both are billed per container, per day, and both exist for the same underlying reason: shipping lines and terminals need containers and space to keep moving, and these charges are the financial incentive to return them promptly.
How much free time do you actually get in Ghana?
Free time varies by carrier and destination, but typical published terms for Ghana include:
- 7 days for dry containers delivered within Ghana
- 5 days for reefer (refrigerated) containers
- 21 days for dry containers in transit to other West African coastal countries
- 28 days for dry containers in transit to landlocked countries such as Burkina Faso, Mali, or Niger
Demurrage is generally calculated from the day your container is discharged from the vessel through to the day the empty container is returned to the terminal; which means the clock is running throughout your customs clearance process, not just after you've picked the cargo up.
How much do demurrage charges actually cost?
Rates vary by carrier and container type, but real published figures for Ghana give a sense of scale: charges around $25 per day for a 20ft container in the first bracket after free time expires, rising to roughly $42 per day after 14 days, and $55 per day after 21 days. For a 40ft reefer container, per-day rates have been cited in the range of $200. These figures illustrate the core problem: demurrage isn't a flat fee, it's an escalating daily cost, which is exactly why small delays can turn into large bills if they're allowed to compound.
Why do so many containers end up auctioned at Ghanaian ports?
This is the detail that surprises most first-time importers: industry reporting suggests 80–90% of cargo eventually auctioned at Ghanaian ports isn't auctioned because the importer couldn't pay customs duty; it's auctioned because the accumulating demurrage and rent charges outgrew what the importer could afford to pay to release the shipment at all. Once demurrage compounds past a certain point, walking away can become the "less bad" financial outcome compared to paying to retrieve the cargo; which is precisely the trap you want to avoid ending up in.
How do you avoid demurrage and detention charges?
- Know your free-time window before your cargo even arrives. This should come from your freight forwarder or shipping line as soon as the vessel sails, along with the estimated time of arrival.
- Get your documentation ready in advance, not on arrival. Permits, certificates, and any product-specific approvals (FDA, GSA, and similar) should be sorted before the shipment lands; sorting them after is one of the most common causes of clearance delays.
- Line up funds for duty payment ahead of arrival. A shipment that's fully documented but stuck waiting on duty payment still accrues demurrage in the meantime.
- Arrange warehouse or transport capacity before the container is released, so there's no gap between customs release and actually moving the cargo.
- If a delay looks likely, act early; request additional free time from the carrier, or investigate a nearby storage facility, rather than waiting until charges have already started accruing.
- Work with a freight forwarder or clearing agent who actively tracks your free-time countdown, rather than discovering the deadline only when the bill arrives.
What's the single biggest lever you actually control?
Nearly every demurrage and detention case traces back to the same root cause: something wasn't ready before the container arrived; a missing permit, an unfunded duty payment, or no plan for onward transport. The free-time clock starts the moment your cargo is discharged, regardless of whether you're ready for it. Treating the shipment's arrival date as a hard deadline to be fully prepared for; rather than the point where preparation begins; is what actually keeps these charges off your invoice.