When a container sits idle on a dock, the clock starts ticking, and so do the hidden costs that can quickly balloon into a freight bill nightmare. These extra fees, known as demurrage charges, are a common pain point for shippers, agents, and cargo owners alike. Understanding how to communicate effectively about them can save you money, streamline operations, and maintain strong relationships with carriers. In this guide, we’ll walk through the key components of a Sample Letter for Demurrage Charges and offer multiple examples that you can tailor to your unique situation.
Why does the right letter matter? According to a 2023 industry report, over 48% of shippers report disputes or misunderstandings over demurrage fees, costing an average of $12,500 each time a dispute escalates. By using a clear, professional letter, you can reduce the chance of dispute, get your claims settled faster, and keep your shipping budget on track. Let’s dive in.
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Understanding Demurrage & Why the Letter Matters
Demurrage is the fee a carrier charges when freight is not returned to the port within the agreed free days. For shippers, this can quickly translate into thousands of dollars in penalties if a container is delayed, e.g., due to port congestion or customs hold-ups. A well‑structured letter clarifies your position and sets the stage for an amicable resolution. The importance of documenting your claim in writing cannot be overstated—every detail you capture in the letter becomes part of the official record.
Below is a typical breakdown of how demurrage charges accumulate:
| Free Days | Daily Rate (USD) | Calculation Example |
|---|---|---|
| 5 | $200 | (Day 6) 1 * $200 = $200 |
| 15 | $175 | (Day 16) 1 * $175 = $175 |
| 30 | $150 | (Day 31) 1 * $150 = $150 |
In addition to these rates, carriers often add interest on overdue balances and port handling fees. Understanding the exact structure inside a contract helps you pin down the numbers when you draft your letter.
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Sample Letter for Demurrage Charges: Requesting Reimbursement for Unjustified Fees
Dear Carrier Operations Manager,
We hope this message finds you well. On March 4, 2026, our container (SCAC: ABCD, Voyage: 12345) was left on the docks at Port Anytown for an extended period due to a customs inspection delay, which took six days longer than anticipated. According to our original contract (Clause 4.3), we were entitled to five free days. Because the delay was caused by customs and not carrier operation, we request reimbursement of the demurrage charges of $1,200 that were invoiced in the statement dated April 2, 2026.
To support our claim, please find attached:
- Customs clearance documents (Exhibit A)
- Photographic evidence of container status on March 4–10
- Correspondence with customs officials (Exhibit B)
Sincerely,
Jane Doe
Freight Operations Manager
XYZ Shipping Inc.
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Sample Letter for Demurrage Charges: Formal Notice of Late Deliveries
To: Container Terminal Manager, Port of Riverport
Subject: Demurrage Charges for Container RA987654 on May 19–25, 2026
Dear Sir/Madam,
It has come to our attention that container RA987654 was held at the terminal longer than the free days stipulated in our lease agreement (CFD 5 days). The container was last removed from the dock on May 25, incurring demurrage fees of $875, as noted in your invoice dated June 2, 2026. The delay was caused by your terminal’s logistical backlog, documented in the port bulletin (June 5, 2026).
We request that you review the circumstances and consider a refund of the incurred fee. We are prepared to settle the payment promptly upon agreement. Please respond within 10 calendar days with your decision.
Best Regards,
Eric Mitchell
Logistics Coordinator
Global Goods Ltd.
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Sample Letter for Demurrage Charges: Clarifying Billing Discrepancies
Dear Billing Department,
We refer to the invoice (No. 4578) received on July 7, 2026 regarding demurrage for container GTB24321. The invoice lists a charge of $600 for 4 days of demurrage. However, we only experienced a 3‑day delay beyond the agreed free period, as confirmed by the signed release form from the port dated July 5, 2026. Therefore, the correct charge should be $400 ($200 per day for one day).
Could you please issue an updated invoice reflecting the accurate amount? Attached are:
- Signed port release form
- Contract excerpt confirming daily rate
Thank you,
Lily Chen
Account Manager
Oceanic Trade Corp.
Sample Letter for Demurrage Charges: Negotiating a Settlement for Multiple Incidents
To: Chief Financial Officer – Global Freight Services
Re: Collective Demurrage Claims for 2026 Quarter
Dear CFO,
Our account has experienced three separate demurrage incidents in Q2 2026—each ranging from 2 to 4 days of delay due to operational bottlenecks at different ports. The cumulative charge amounts to $3,120, with $1,080 invoiced to us. We believe the total should be reduced by 75% based on the following points:
- All containers were released within the agreed free days of 7 days.
- Delays stemmed from port-side issues; no carrier action was requested.
- Industry benchmark suggests a cap of $250 per container for similar delays.
We propose a settlement of $780 (25% of $3,120). A detailed spreadsheet is attached for your review. Let’s schedule a call this week to finalize terms.
Best,
Marco Ruiz
Senior Finance Officer
Global Freight Services
Sample Letter for Demurrage Charges: Requesting Waiver During Extraordinary Circumstances
Dear Terminal Operations Director,
During the unprecedented 2026 diesel shortages, our container MNK74891 was stranded for 12 days at the port, incurring demurrage of $3,200. We understand these charges are part of our agreement, but the diesel crisis was an extraordinary event beyond our influence.
Given the situation, we respectfully request a partial waiver of the demurrage charges. Attached are:
- Official government notice of diesel shortage
- Internal logs indicating call-out and wait times
Sincerely,
Tara Patel
Supply Chain Lead
FuelCo Logistics
Sample Letter for Demurrage Charges: Confirming Settlement Post-Adjustment
Hi James,
Just to confirm, we’ve received your adjusted invoice for the demurrage on container HF27302. The new total of $1,250 has been processed, and the payment was credited to your account on August 12, 2026.
Thank you for addressing the issue so promptly. Please keep the attached receipt for your records. Let us know if there’s anything else we can assist with.
Best,
Linda M.
Customer Support, Harbor Freight Co.
Throughout these examples, you’ll notice a consistent structure: a courteous greeting, precise facts, supporting documents, a clear request, and a courteous close. This uniformity not only helps your point get across but also signals professionalism—a key factor in quick dispute resolution.
To keep your shipping operation running smoothly, always keep copies of every exchange, verify contract terms, and stay vigilant about your container’s dwell time. If you need a template, couple it with these sample letters and pair them with a simple tracking spreadsheet so you can anticipate potential demurrage before it accrues. Take the initiative today, and your future budgets will thank you.