EXIM Logistics & Freight Compliance
Container Demurrage & Detention Calculator
Accurately estimate ocean carrier detention and port demurrage charges across progressive tariff tiers. Modeled for major Indian ports (Nhava Sheva/JNPT, Mundra, Chennai, Hazira, Kolkata, ICDs) with 20ft/40ft/Reefer container support and 18% GST Input Tax Credit (ITC) tracking.
CBIC customs exchange rate or bank TT selling rate.
Free Time & Turnaround Duration (Days)
Free days stated in Bill of Lading (typically 10, 14, or 21 days).
Calendar days from vessel discharge until empty container returned to yard.
Demurrage & Detention Invoice Estimate
- Total Containers in Shipment
- 2 unit(s)
- Total Base Charges
- $1,650.00
- GST Amount (18% SAC 9967)
- $297.00
Cost Breakdown by Container Type
| Container Type | Qty | Total Payable |
|---|---|---|
| 40ft High Cube (HC)8 excess day(s) | 2 | $1,947.00 |
If 7 additional free detention days had been negotiated at booking time:
EXIM Demurrage Minimization Advisory
- •100% GST Input Tax Credit (ITC): Demurrage and Detention invoices issued by port terminals, CFSs, and shipping lines carry 18% GST (SAC 9967/9965). If your business is GST registered, you can claim full ITC on the tax paid.
- •Pre-Booking Free Time Clause: Always insist on 14 or 21 days free detention clause in the ocean Bill of Lading (B/L) at the booking stage. Most shipping lines grant this without freight surcharges for regular import cargo.
- •Direct Port Delivery (DPD) Facility: Enrolling in DPD at Nhava Sheva (JNPT) or Mundra allows direct evacuation of containers from terminal to factory, avoiding CFS transfer delays and saving ₹15,000 to ₹35,000 per container in ground rent.
- •Section 49 Customs Act (Public Bonded Warehousing): If customs clearance is stalled due to dispute, valuation, or lab test reports, immediately apply for de-stuffing under Section 49 to a public bonded warehouse to stop ocean line container detention ticking.
- •Total Estimated Liability: $1,947 (approx ₹1,64,521.5) across 2 container(s) including 18% GST.
Frequently asked questions
What is the key difference between Demurrage and Detention in shipping?
Demurrage is charged when loaded containers occupy port terminal or CFS yard space beyond free days before gate-out. Detention is charged by the ocean carrier when the container is taken outside the port premises for factory destuffing and held beyond the line's free return window before returning empty to the container depot.
What is Combined Demurrage & Detention (Combined D&D)?
Under Combined D&D, the ocean carrier allocates a single unified pool of free days (typically 10, 14, or 21 days) starting from vessel discharge at the seaport until the empty container is safely returned to the carrier's inland depot. It gives shippers flexibility to distribute time between customs clearance and road transit.
Does 18% GST apply to shipping line container detention and demurrage in India?
Yes. Both port demurrage and shipping line detention invoices issued in India attract 18% GST under SAC code 9967 (Support services in transport). Shippers with regular GST registration can claim 100% Input Tax Credit (ITC) on this GST, reducing the effective net cash burden.
How can Indian importers negotiate 14 or 21 free detention days?
Always request a 14 or 21 days free detention clause from your freight forwarder or shipping line at the ocean freight booking stage before the Bill of Lading (B/L) is issued. Most carriers provide 14 days free time at no additional freight charge for standard dry cargo bound for Indian ports upon request.
What is Direct Port Delivery (DPD) and how does it prevent demurrage?
Direct Port Delivery (DPD) allows accredited importers (such as AEO certificate holders) to clear customs and evacuate import containers directly from the terminal within 48 hours without routing through an intermediate Container Freight Station (CFS). This cuts container dwell time by 3 to 5 days, saving thousands in CFS ground rent.
What should I do if customs clearance is held up for weeks?
If customs clearance is stalled due to dispute, valuation inquiry, or lab test delays, apply under Section 49 of the Customs Act, 1962 to de-stuff the goods and store them in a public bonded warehouse. This allows you to immediately return the empty container to the shipping line, stopping crippling daily detention charges from compounding.