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How to Prevent Costly Container DEM/DET and Port Storage Fees

Logistics/5 min read/October, 2026

Proactive management of free-time allowances, prompt Delivery Order acquisition, and trucking coordination to avoid penalty fees.

How to Prevent Costly Container DEM/DET and Port Storage Fees

Key Takeaways for Businesses

  • DEM (Demurrage): Charges levied by shipping lines when container remains in terminal past free time.
  • DET (Detention): Charges incurred when empty/laden container stays at consignee premises past allocated days.
  • STORAGE: Terminal ground storage fees billed directly by the sea port authority.
  • Proactively negotiate 14 to 21 combined free-time days upon booking placement.

Demurrage and detention fees frequently trigger severe cost overruns for import businesses when document clearances face bottlenecks.

Proven strategies to mitigate these surcharges:

1. Request extended Combined Free Time (14 to 21 days) from shipping lines prior to vessel sailing.

2. Prepare customs clearance dossiers immediately upon receiving the Arrival Notice (A/N).

3. Partner closely with reliable forwarders like TDDT to continuously monitor vessel arrival schedules and secure immediate truck dispatch.

Need help with this procedure?

TDDT is ready to advise and handle the full process on your behalf.