In international shipping, unexpected port charges can quickly destroy your logistics budget. Many importers and exporters confuse demurrage, detention, storage, and free time, even though these charges are calculated differently and controlled by different parties.
At BRF SHIPPING, we help global importers reduce unnecessary container penalties by planning customs clearance, inland trucking, warehouse coordination, and container return schedules in advance.
This complete guide explains:
What demurrage means
What detention means
What storage fees are
How free time works
Who pays these charges
How shipping lines calculate fees
Practical ways to avoid expensive penalties
Free Time refers to the number of days a shipping line or terminal allows you to use a container without additional charges.
Free time usually starts after:
Container discharge from the vessel
Container pickup from terminal
Empty container gate-out
Depending on the shipping contract, free time may apply to:
| Type | Meaning |
|---|---|
| Free Demurrage | Free days inside the terminal |
| Free Detention | Free days outside the terminal |
| Free Storage | Free days at port storage area |
Typical free time ranges:
| Shipment Type | Common Free Time |
|---|---|
| Import containers | 3–7 days |
| Export containers | 5–10 days |
| Inland projects | Negotiable |
| DDP shipments | Often extended |
Busy ports in the USA, Canada, Australia, and Europe often have shorter free time during peak season.
Demurrage is charged when a full container stays inside the port or terminal longer than the allowed free time.
The container has not yet been picked up from the terminal.
Free time = 5 days
Container discharged on May 1
Container picked up on May 8
Result:
Days 6–8 become demurrage charges
Customs clearance delays
Missing shipping documents
Port congestion
Import duty payment delays
Truck appointment shortages
Examination or inspection holds
Usually:
Shipping line
Port terminal
Container operator
Normally the:
Importer
Consignee
Customs broker acting on behalf of consignee
Detention is charged when the container leaves the terminal, but the empty container is not returned within the allowed free time.
In simple words:
Demurrage = Container inside port too long
Detention = Container outside port too long
Container picked up on May 1
Free detention = 7 days
Empty container returned on May 12
Result:
4 days of detention charges
Slow warehouse unloading
Long inland transportation
Customer appointment delays
Empty depot congestion
Remote delivery locations
Usually:
Importer
Shipper
Trucking operator (depending on contract terms)
Storage charges are fees for occupying terminal or warehouse space.
Unlike detention, storage is usually charged directly by:
Port terminal
Warehouse operator
Container yard (CY)
Storage fees may apply when:
Cargo cannot clear customs
Containers remain in terminal warehouse
Cargo is abandoned
Examination delays occur
Some ports separate storage charges from demurrage, while others combine them.
| Charge Type | Location | Charged By | Trigger |
|---|---|---|---|
| Demurrage | Inside terminal | Shipping line / terminal | Full container stays too long |
| Detention | Outside terminal | Shipping line | Empty container returned late |
| Storage | Port or warehouse | Terminal operator | Cargo occupies storage space |
Most shipping lines calculate charges:
Per container
Per day
Based on tariff schedules
| Item | Amount |
|---|---|
| Daily demurrage rate | USD 150/day |
| Delayed days | 5 days |
| Total | USD 750 |
Some carriers increase rates progressively:
| Days | Daily Rate |
|---|---|
| Day 1–5 | USD 100/day |
| Day 6–10 | USD 200/day |
| Day 11+ | USD 350/day |
This is why delays become extremely expensive very quickly.
Since global port congestion increased, many carriers shortened free time and raised penalty rates.
Major causes include:
Port congestion
Truck shortages
Customs inspections
Terminal appointment delays
Equipment shortages
Peak season disruptions
US and European ports often have the highest detention and demurrage costs globally.
Industry discussions also show that appointment shortages and terminal congestion frequently create unavoidable delays for importers.
Ensure all documents are ready before vessel arrival:
Commercial invoice
Packing list
Bill of lading
HS codes
Import permits
Monitor:
Vessel ETA
Port discharge status
Customs release
Last free day (LFD)
Book trucking appointments early, especially at busy ports.
Late appointments are one of the biggest reasons for demurrage.
Always confirm:
Correct empty depot
Empty return appointments
Depot opening hours
Large-volume importers can negotiate:
14-day free detention
Combined demurrage & detention
Special DDP arrangements
The best time to negotiate is during booking — not after the cargo arrives.
| Type | Easier to Negotiate? | Controlled By |
|---|---|---|
| Free Demurrage | Yes | Carrier |
| Free Detention | Yes | Carrier |
| Free Storage | Difficult | Port terminal |
Terminals rarely waive storage charges because they directly impact terminal capacity.
At BRF SHIPPING, we help importers reduce unnecessary logistics penalties through:
Door-to-door shipping
Customs clearance coordination
Container tracking
Free time negotiation
Warehouse storage solutions
Inland trucking arrangement
DDP shipping services
Port appointment management
BRF SHIPPING supports:
China to USA
China to Canada
China to Australia
China to Europe
China to Southeast Asia
Dalian
Tianjin
Qingdao
Shanghai
Ningbo
Xiamen
Shenzhen
With years of international freight forwarding experience, BRF SHIPPING helps customers minimize shipping risks and control total landed costs.
A customer shipping a 40HQ container from China to Australia faced:
Customs inspection delays
Port congestion
Tight delivery schedule
BRF SHIPPING helped by:
Applying for extended free detention
Coordinating fast customs clearance
Arranging direct trucking delivery
Scheduling early empty return
Result:
Avoided thousands of dollars in detention penalties
Delivered cargo successfully to the customer warehouse
Demurrage applies when the container stays inside the terminal too long. Detention applies when the container is outside the terminal and returned late.
No. Storage is usually charged by the terminal or warehouse operator, while demurrage is generally charged by the shipping line or terminal for occupying container yard space.
Sometimes. Carriers may approve waivers during:
Port congestion
Customs inspections
Terminal system failures
Force majeure events
Approval depends on supporting documents and carrier policy.
The USA, Canada, and Europe generally have higher detention and demurrage fees compared to many Asian ports.
Return empty containers faster
Arrange unloading appointments early
Use nearby warehouse facilities
Negotiate longer free detention before shipment
BRF SHIPPING provides professional freight forwarding and supply chain solutions for global importers.
Competitive ocean freight rates
Fast customs clearance support
DDP/DDU shipping expertise
Global logistics network
Professional warehouse services
Real-time cargo tracking
Flexible free-time negotiation
Whether you are shipping FCL, LCL, oversized cargo, or project cargo, BRF SHIPPING can help reduce delays and optimize shipping costs.
Need help reducing demurrage or detention charges?
Contact BRF SHIPPING today for professional logistics support and customized shipping solutions.
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