Marine cargo premiums are quoted as a small rate applied to the insured value, but the rate swings with how broad the cover is, what you are shipping, and by which mode. This estimator combines those factors over the customary CIF plus 10 percent insured value to give a realistic premium for budgeting a shipment.
How it works
The insured value gets the standard uplift, then a blended rate is applied:
insured value = CIF × 1.10
rate per mille = base(clause) + commodity loading + mode loading
premium = insured value × rate per mille / 1000Clause A carries the highest base because it is all-risks; commodity and mode loadings add for fragile, perishable, or theft-prone goods and for higher-risk transport modes.
Worked example
A 100,000 CIF general-cargo ocean shipment under Clause A insures 110,000. At a blended rate of about 3.2 per mille the premium is roughly 352. Switching to the restrictive Clause C drops the base rate and the premium, but leaves you exposed to partial losses — suitable only if the cargo is genuinely rugged and a partial-loss claim is not a realistic concern.
Choosing the right ICC clause for your cargo
The Institute Cargo Clauses were drafted by the London market and are recognised globally. Choosing the right level of cover starts with the cargo type:
ICC Clause A — All risks. The broadest cover available: insures the cargo against all losses or damage except for those explicitly excluded (inherent vice, delay, nuclear risk, war, and similar exclusions). This is the standard for electronics, machinery, consumer goods, pharmaceuticals, and any cargo where partial loss is a real possibility. It costs more but eliminates ambiguity about whether a specific type of damage is covered.
ICC Clause B — Named major perils. Covers losses from fire and explosion, stranding, sinking, capsizing, collision, earthquake, washing overboard, and entry of sea water into a hold. Partial losses from rough handling or contact damage not caused by one of these perils are not covered. Suitable for durable bulk cargoes where minor surface damage is acceptable.
ICC Clause C — Minimum cover. Insures only against major casualties: fire, sinking, stranding, collision, discharge at port of distress. No cover for partial loss, wetting, or damage from vessel movement. Used for low-value bulk commodities (some ores, scrap metal, logs) where the principal risk is a total loss by major casualty, not partial damage.
Common commodity loadings
Insurers apply risk loadings for commodities that are more likely to result in a claim:
- Electronics and household appliances — high theft risk (especially air freight) and fragility load
- Perishables (fresh produce, pharmaceuticals requiring temperature control) — spoilage risk; temperature excursion claims are frequent
- Antiques, fine art, and jewellery — high value density, high replacement cost, fragility, and theft risk
- Chemicals and hazardous materials — contamination risk and regulatory complexity if lost at sea
- General cargo (machinery, industrial parts) — lower loading as a baseline; the ICC A base rate applies with minimal addition
Always check the insurer’s minimum premium, which often overrides the calculated figure on small shipments, and confirm that the commodity code matches what is actually being shipped.