What Is Demurrage? Container Detention Charges Explained
Demurrage is the daily charge levied when a shipping container remains at the port beyond the allotted free time period. Global demurrage and detention costs exceed $5 billion annually, often caused by customs delays or documentation issues.
What Is Demurrage?
Demurrage is the daily charge levied by the shipping line when an import container remains at the port terminal beyond the allotted free time period. When a container arrives at port, the consignee is given a set number of free days (typically 5-10) to collect it. If this window is exceeded, daily demurrage fees begin accruing.
According to Drewry Container Research, global demurrage and detention costs exceed $5 billion annually. These charges are most commonly caused by customs delays, missing documents, or the consignee's failure to collect on time.
Kolay Parsiyel manages customs clearance efficiently to protect customers from demurrage costs.
Demurrage vs Detention
| Criteria | Demurrage | Detention |
|---|---|---|
| Location | Container at port/terminal | Container outside port (at customer) |
| Situation | Full container not collected | Empty container not returned |
| Starts when | After vessel discharge | After container leaves port |
| Charged by | Shipping line + port | Shipping line |
| Average rate | 50-150 USD/day (20') | 30-100 USD/day (20') |
How Demurrage Is Calculated
Demurrage = (Total Days - Free Days) x Daily Rate
Example: 20' container, 7 free days, container stays 12 days at port:
(12 - 7) x 100 USD = 500 USD demurrage
Rates escalate with time: Days 1-5 after free time: 50-100 USD/day. Days 6-10: 100-200 USD/day. Day 11+: 200-400 USD/day.
How to Avoid Demurrage
- Pre-clear customs: Submit customs documentation before vessel arrival
- Use a professional customs broker: Prevents documentation delays
- Negotiate free time: Request extended free time from the shipping line
- Plan warehouse readiness: Ensure your facility is ready to receive the container
- Track vessel ETA: Monitor arrival and prepare in advance
Frequently Asked Questions
Who pays demurrage?
Typically the consignee (receiver) named on the bill of lading. Under DDP Incoterms, the seller is responsible.
What is free time?
The grace period (5-10 days) after vessel discharge during which no fees apply. High-volume customers can negotiate longer free time.
Can demurrage be disputed?
Yes, for force majeure events (port strikes, natural disasters, customs closures). Fee waiver requests can be submitted to the shipping line.
Is demurrage the same as port storage?
No. Demurrage is paid to the shipping line (container owner). Port storage is paid to the port operator. Both can apply simultaneously.
References
- Drewry Container Research
- Federal Maritime Commission (FMC)
- World Shipping Council
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