Cutting Container Detention Charges With Proactive Free-Time Alerts
Track free time for every container and alert the right people before detention and demurrage start, not after the invoice arrives.
Detention and demurrage invoices usually arrive weeks after the container has gone back, when nothing can be done. The team then reconstructs what happened: customs took longer, the delivery order was late, the transporter could not find a slot, or the empty sat at the factory because nobody told the plant it had a deadline.
Free time differs by shipping line, port, container type and negotiated terms. It sits in contracts and emails, not in a system the import desk checks daily. With dozens of containers moving, nobody has a clear view of which ones are close to expiry, so charges accumulate quietly and get paid as a cost of doing business.
What is the difference between detention and demurrage?
Usage varies by line and contract, so check your terms. Commonly, demurrage covers the container staying inside the port or terminal beyond free time, and detention covers keeping it outside, with you, beyond free time before the empty is returned.
Can we negotiate more free time?
Often, yes, especially if you ship regular volumes with a line or through a forwarder. Ask at contract time, and request extensions before expiry for specific containers. Tracking your actual usage gives you the data to make that case.
Who should own empty container return?
Name one owner per site, usually the stores or logistics lead at the receiving plant, and give them the expiry date the day the container arrives. Without a named owner, unloaded empties often sit idle in the yard.