Cargo Theft and Marine Cargo Insurance
Understand the evidence, custody records and policy questions that matter when cargo is missing, stolen or short-delivered.
AI-generated editorial illustration.
Cargo theft can occur at several points in a transport chain, and discovering a shortage does not always reveal where or how the loss happened. A shipper may have packing records, a carrier may have an intact seal record and a consignee may receive fewer goods than expected. Insurance review needs those facts brought together carefully.
The question is not simply whether the policy is called marine cargo insurance. The wording, insured transit, goods description, security conditions, evidence and relevant exclusions determine the assessment. This guide explains preparation and claim documentation without assuming a particular outcome.
Distinguish theft, shortage and an unexplained discrepancy
Theft describes a cause of loss; shortage describes an observed difference in quantity. A short delivery might require investigation into loading, documentation, handling, measurement or criminal activity. Avoid presenting a theory as an established fact before the evidence supports it.
Record what was expected, what was received and how the quantities were checked. Identify the relevant units, package numbers and source documents. If the discrepancy concerns bulk goods, the measurement basis can require particular professional attention.
Use neutral descriptions in the initial report. A statement such as “three listed cartons were not present at delivery” is clearer than an unsupported allegation about a specific party.
Understand what a seal can and cannot show
Container seals are useful elements of a custody record, but they do not answer every security question. UK P&I Club: Carefully to Carry, container security explains that the presence of a seal is not itself an anti-theft guarantee and discusses the difficulty of locating a loss within a long transport chain.
For an insurance file, record seal numbers and changes where available, together with the people or organizations making the entries. An intact seal at one point does not by itself prove the condition or quantity originally packed.
Do not treat this as a reason to abandon seals or established security procedures. It is a reason to connect them with packing, handover and delivery evidence rather than relying on one piece of information alone.
Match the cover to the real movement
Describe collection, storage, loading, main carriage, transshipment and delivery. Identify where the insured has an interest and which stages need cover. Planned warehouse storage or distribution activity may require specific consideration rather than an assumption that every pause remains part of transit.
Ask how the policy treats theft, non-delivery, unexplained loss and any relevant security requirements. Read the actual clauses and endorsements. The label “all risks” is not a substitute for checking conditions and exclusions relevant to the goods.
For valuable or readily saleable cargo, explain the packing, transport arrangements and peak values honestly. An underwriter needs to assess the actual exposure, not a generic category that hides its commercial character.
A fictional electronics-delivery example
A consignee receives a container of electronic components and finds several cartons missing. The container number matches the transport documents, but the receiving record does not show whether the seal was checked before opening. The dispatch file contains a packing list but no clear count confirmation.
The claim team must assemble the available evidence and identify the gaps. It may request records from the shipper, carrier, terminal and consignee. The consignee should preserve packaging and relevant delivery documentation, and follow the actual policy’s notification instructions.
The example does not establish that the loss is theft or that it is covered. It shows why disciplined records at each handover can make later investigation more reliable.
Preserve recovery options and formal notices
Notify the actual insurer and relevant transport parties according to the applicable requirements. Ask the appointed claims professionals about notices, survey arrangements and deadlines. Do not assume that an internal warehouse report or an online claim submission satisfies every contractual or legal obligation.
Retain purchase invoices, packing lists, transport documents, delivery receipts, relevant photographs and correspondence. If authorities are involved, preserve the report or reference. Keep original records and identify later corrections.
Avoid agreeing a final settlement with a carrier or supplier without appropriate advice where it could affect insurance or recovery rights. The cargo insurer’s assessment and another party’s liability are related but distinct questions.
Review preventive controls after the incident
Look at the points where information or custody became unclear. Improvements might involve better dispatch counts, more reliable handover records, controlled access to shipment information or clearer escalation when seals differ. Choose measures appropriate to the operation and professional security advice.
Document changes that are actually implemented rather than listing aspirations. At renewal, explain recurring losses and the evidence of corrective action. Do not promise that a particular control eliminates theft or guarantees a premium reduction.
For a new enquiry, use the cargo insurance page and describe the goods, values, transport chain and relevant controls. If a loss has already occurred, use the claims route and provide factual information promptly, with the actual policy governing the outcome.
Frequently asked questions
Does an intact container seal prove no theft occurred?
No single item of evidence answers the entire question. Packing, seal, custody and delivery records should be assessed together by the relevant specialists.
Is unexplained shortage automatically a theft claim?
No. Shortage describes an observed quantity difference. Its cause and treatment under the policy require investigation and supporting records.
Should I claim against the carrier instead of notifying my insurer?
Follow the requirements of the actual policy and obtain claims advice. Insurance notification and preserving rights against transport parties can both matter; do not assume that pursuing one removes the need for the other.
Related reading
- All risks marine cargo insurance explained
- How transshipment affects marine cargo insurance
- What to do after a marine loss or incident
Sources and editorial review
Prepared by the MarineEnergyCover editorial desk. Updated 7 September 2026. Expert and, where relevant, compliance review are pending; no reviewer has been appointed. Examples are fictional and explain questions to investigate, not coverage decisions. Sources provide general context and do not describe MarineEnergyCover’s capacity, authority or policy terms. Insurance availability remains subject to underwriting, applicable law and the agreed contract.
Frequently asked questions
Does an intact container seal prove no theft occurred?
No single item of evidence answers the entire question. Packing, seal, custody and delivery records should be assessed together by the relevant specialists.
Is unexplained shortage automatically a theft claim?
No. Shortage describes an observed quantity difference. Its cause and treatment under the policy require investigation and supporting records.
Should I claim against the carrier instead of notifying my insurer?
Follow the requirements of the actual policy and obtain claims advice. Insurance notification and preserving rights against transport parties can both matter; do not assume that pursuing one removes the need for the other.
Sources & further reading
General information, not a coverage determination or offer. Actual cover is subject to policy wording, insurer terms, underwriting and applicable law.