What it means
When freight travels by air, two quite different protections are in play. The carrier has a limited liability set by international agreement and calculated by the weight of the shipment, while cargo insurance is a separate contract that responds to the declared value of the goods themselves.
The gap between those two figures is the reason the cover exists. A pallet of medical devices weighing 400 kilogrammes may be worth $300,000, yet weight-based carrier liability might produce a recovery of little more than $12,000, and only then if the shipper can show the carrier was at fault.
Cover is normally written on an all-risk basis for a named voyage or, for regular shippers, under an open cover that automatically picks up every consignment declared during the period. The insured value is conventionally the invoice value plus freight plus a 10% margin, which represents the profit and incidental costs the shipper loses if the goods never arrive.
The premium is a rate applied to that insured value, and the rate depends on the commodity, the route, the packing and the claims record. Fragile electronics on a multi-leg route through several transit hubs attract a very different rate from steel fittings flying point to point.
Air shipments carry some specific exclusions worth knowing. Inadequate packing, inherent vice such as perishable goods spoiling naturally, delay on its own and, in many policies, temperature excursions unless specifically added, are all commonly excluded, which is why pharmaceutical shippers buy a temperature endorsement rather than assuming standard cover applies.
In practice
Real-world examples.
Example
A fashion brand air freights a $400,000 seasonal collection to meet a launch date. It insures the shipment at invoice plus freight plus 10% because a delayed replacement would miss the selling window entirely, and the goods would then be worth a fraction of their cost.
Example
A biotechnology firm ships temperature-controlled reagents and adds a specific temperature deviation endorsement to its open cover. When a container sits on a hot apron for six hours and the payload is spoiled, the claim is paid, whereas a standard all-risk wording would probably have declined it.
Example
A machinery exporter shipping a $180,000 spare gearbox chooses to self-insure a single low-risk leg, then reverses the decision after an internal review shows that one loss would wipe out a year of the freight savings.
Formula
Calculation
Insured Value = (Invoice value + Air freight) x 110%
Premium = Insured value x Premium rate
A manufacturer air freights precision components with an invoice value of $250,000 and pays $18,000 in air freight charges. The base figure is $250,000 + $18,000 = $268,000, and adding the customary 10% gives an insured value of $268,000 x 1.10 = $294,800.
The underwriter quotes a rate of 0.35% for this commodity and route, so the premium is $294,800 x 0.0035 = $1,031.80. That is roughly four tenths of one per cent of the freight and goods combined.
Now compare the alternative. The shipment weighs 400 kilogrammes and convention-based carrier liability works out at roughly $30 per kilogramme, giving a maximum recovery of 400 x $30 = $12,000 if the consignment is destroyed. Relying on carrier liability alone would leave the manufacturer $294,800 - $12,000 = $282,800 out of pocket, which is why the four-figure premium is an easy decision.Case study
Seen in the real world.
Ardenhall Instruments is an illustrative, fictional maker of laboratory analysers that shipped roughly 60 consignments a year by air. To save money the finance team declined cargo insurance on shipments under $100,000, reasoning that the carrier's liability plus the company's own reserves would absorb any occasional loss.
A pallet valued at $92,000 was destroyed when a forklift punctured the case during transfer at a transit hub. The handling agent accepted responsibility, but the settlement was calculated on the 280 kilogramme weight rather than the value, and Ardenhall recovered about $8,400 against a $92,000 loss.
The company then moved every shipment onto a single open cover at a blended rate of 0.28%. On declared values of about $4,000,000 a year that cost roughly $11,200 in premium, which the illustrative finance director described as the cheapest sleep he had ever bought.
Watch out
Common mistakes.
- Assuming the airline or freight forwarder already insures the goods, when what they provide is a weight-based liability cap that is unrelated to the value of the cargo.
- Insuring only the invoice value and forgetting the freight already paid and the 10% margin, so a total loss still leaves the shipper short.
- Overlooking the road legs at each end of the journey, where a surprising share of loss and damage actually occurs.
Questions
People also ask.
Who should buy the cover, the buyer or the seller?
It depends on the agreed trade terms, because those terms set the point at which risk passes between the parties, and the party bearing the risk during the flight is the one that needs the insurance.
Does air cargo insurance cover delay?
Generally not on its own, since delay is excluded in most standard wordings unless it results from an insured physical loss, so time-critical shippers should ask about the specific wording.
Why is the insured value 110% of cost?
The extra 10% is a long-standing convention meant to cover the profit margin, customs charges and incidental expenses a shipper loses when goods do not arrive.
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