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Demurrage and Detention Charges Explained (2026 Logistics Guide)

Learn what demurrage and detention charges are, how they work in shipping, why they occur, and how Indian importers and exporters can avoid them.

8 min read

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Demurrage charges apply when containers stay too long inside the port or terminal, while detention charges apply when containers are kept outside the terminal beyond the free allowed time.

Demurrage and detention charges are among the most common hidden costs in international shipping. Many importers and exporters in India only learn about them after facing expensive delays at ports or warehouses.

These charges can quickly increase logistics costs, especially during customs delays, port congestion, or slow cargo pickup.

In this guide, we explain demurrage and detention charges in simple language with practical examples, cost breakdowns, and tips to avoid them.

What is Demurrage?

Demurrage is charged when a container remains inside the port or terminal after the free storage period expires.

  • Applies inside port or terminal
  • Charged by shipping line or terminal
  • Common during customs delays
  • Daily charges increase over time

What is Detention?

Detention is charged when the importer or exporter keeps the container outside the port longer than the allowed free period.

  • Applies outside terminal
  • Charged until empty container is returned
  • Common during unloading delays
  • Can apply to imports and exports

Demurrage vs Detention

FactorDemurrageDetention
LocationInside port/terminalOutside terminal
When ChargedContainer not picked upContainer not returned
Responsible PartyImporter/exporterImporter/exporter
Main CausePort delaySlow unloading/return

How Free Days Work

Shipping lines provide a limited number of free days before charges start.

Charge TypeTypical Free Days
Demurrage3–7 days
Detention5–14 days

Typical Demurrage and Detention Charges in India

Container TypeApprox Daily Charge
20ft container₹2,000 – ₹8,000/day
40ft container₹4,000 – ₹12,000/day
Reefer containerHigher charges apply

Common Reasons for These Charges

  • Customs clearance delays
  • Incomplete shipping documents
  • Port congestion
  • Delayed cargo pickup
  • Slow unloading at warehouse

Real Example: Import Delay at JNPT

An electronics importer in Mumbai delays customs duty payment, causing the container to remain at JNPT terminal for 8 extra days.

The importer may face both demurrage charges from the terminal and additional detention charges if the container return is delayed.

How Businesses Can Avoid Demurrage & Detention

  • Complete customs documentation early
  • Pay import duties quickly
  • Track vessel arrival schedules
  • Arrange transport before cargo arrival
  • Return empty containers on time

Who Pays These Charges?

Responsibility depends on the shipping agreement and Incoterms used.

  • Importer usually pays for import delays
  • Exporter may pay for export-related delays
  • Terms like FOB or CIF can affect responsibility

Impact on Logistics Cost

Demurrage and detention can significantly increase total shipping cost if delays continue for several days.

Delay DurationPossible Additional Cost
3 days₹6,000 – ₹25,000
7 days₹20,000 – ₹70,000
15+ days₹50,000+ possible

India-Specific Insights

  • Common at JNPT, Mundra, Chennai ports
  • Port congestion increases charges during peak season
  • ICDs can also apply storage-related charges
  • Customs delays are a major cause in India

Process section

Step 1: Container Arrival

Container arrives at terminal or port.

  • Free storage period starts
  • Customs process begins

Step 2: Customs & Cargo Handling

Importer/exporter completes customs clearance and transport arrangements.

  • Duty payment
  • Document verification

Step 3: Free Days Expire

Charges start once allowed free days are exceeded.

  • Demurrage inside port
  • Detention outside port

Step 4: Container Return

Empty container must be returned to avoid further detention charges.

  • Container inspection
  • Final settlement

Key Takeaways

  • Demurrage applies inside the terminal while detention applies outside
  • Delays in customs and cargo pickup increase charges quickly
  • Proper planning helps avoid expensive penalties
  • Container return timing is critical in international shipping

Frequently Asked Questions

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