Cargo Insurance Excess Structures: UK Buyers Guide

What an Excess Actually Does on a Cargo Policy

An excess (sometimes called a deductible in US-market placements) is the amount of each and every loss that falls to you before underwriters respond. On a marine cargo policy placed in the London company market, excesses are almost always expressed as 'each and every occurrence' rather than as an annual aggregate. That distinction matters: a single container theft and a separate transit damage claim in the same month are two separate excesses, not one combined deductible.

The excess interacts directly with the scope of cover you have chosen under the Institute Cargo Clauses. Under ICC (A), which provides all-risks cover subject to named exclusions, the excess applies to the full breadth of perils — including theft, contamination, and physical damage. Under ICC (B) or ICC (C), the narrower named-perils structure means fewer claims arise in the first place, so underwriters may offer a lower excess to reflect the reduced frequency exposure. If you are buying ICC (C) primarily to satisfy a letter of credit requirement, be aware that the excess still applies to the limited perils that are covered.

Franchise clauses are a related but distinct concept. A franchise is a threshold below which underwriters pay nothing, but above which they pay the entire loss — there is no deduction. Franchises are now rare on modern cargo placements but still appear on some commodity trades and older open covers. If your policy wording contains the word 'franchise' rather than 'excess', clarify with your broker before you have a claim, because the recovery calculation is fundamentally different.

Common Excess Structures and When Each Applies

London-market cargo underwriters typically offer several excess structures depending on your commodity, packing standard, transit route, and claims history. Understanding which structure applies to your shipments — and whether it can be negotiated — is one of the most practical conversations you can have at renewal.

The structure that applies to your policy will depend on factors including the nature of your goods, your annual shipment volume, and whether you are placing a single-voyage policy or an annual open cover.

• Each and every occurrence excess: the most common structure; applies separately to each distinct loss event regardless of how many shipments are affected.
• Per-sending excess: common on open covers where multiple consignments move simultaneously; the excess applies per declared sending rather than per vessel voyage.
• Accumulation excess: used where a single vessel or storage location holds multiple consignments; the excess scales with the total value at risk in one location.
• Nil excess (first-loss): available on some high-value or time-critical cargo placements, but typically priced to reflect the increased frequency exposure to underwriters.
• Aggregate annual excess: rare in cargo, but occasionally seen on high-volume, low-value commodity flows where frequency losses are predictable and the buyer prefers to self-insure small claims.
• Theft-specific excess: a separate, higher excess applied only to theft and mysterious disappearance claims, reflecting the moral hazard underwriters price into those perils.

How Excess Levels Are Set — and How to Negotiate Them

Underwriters set excess levels primarily by reference to your claims history, the commodity risk profile, and the transit routes involved. A five-year loss record with no attritional claims gives you genuine leverage to push for a lower excess or a nil-excess structure on your core commodity. If your record shows frequent small claims — even if individually modest — underwriters will use a higher excess to price out that frequency rather than reduce the rate.

Your packing and survey standards are the second lever. If your goods are packed to ISPM-15 standards, palletised to a recognised specification, and you commission pre-shipment surveys on high-value consignments, underwriters have evidence that your loss frequency should be lower than the market average for your commodity. Bring that documentation to your broker before renewal, not after you have already received terms.

Route and storage exposure matter significantly. Shipments transiting high-theft corridors — certain West African ports, parts of South America, or road legs through regions with elevated cargo crime — will attract a theft-specific excess regardless of your overall claims record. Similarly, if your open cover includes storage at intermediate warehouses, underwriters will want to know the maximum value held at any one location, and the excess for storage losses may differ from the transit excess. This is not a standard clause — it is a negotiated term, and your broker should be pressing underwriters to align the storage excess with your actual warehouse risk management controls.

Sue-and-labour costs — the reasonable expenses you incur to avert or minimise a loss — are recoverable under your policy in addition to the claim itself, and they are generally not subject to the excess. This is an important protection: if your cargo is at risk of further damage and you spend money to prevent it, that expenditure sits outside the excess calculation. Make sure your policy wording confirms this, because some market wordings attempt to apply the excess to sue-and-labour recoveries.

Excess Structures on Open Covers and Annual Declarations

If you are a freight forwarder or shipping company moving goods under an annual open cover, the excess structure is set at inception and applies to every declaration made during the policy year. This means a poorly negotiated excess at the start of the year compounds across every shipment you declare. For high-volume operators, even a modest reduction in the per-sending excess can represent a material improvement in your net claims recovery over a full year.

Open covers placed in the London company market are typically evidenced by a Marine Risk Certificate (MRC) slip, which will specify the excess in the conditions section. Read that section carefully. It is common for the MRC to carry a standard excess for most commodities but a separate, higher excess for specific categories — electronics, pharmaceuticals, and fine art are frequent examples. If your open cover is used to move a wide range of goods, confirm with your broker that the excess applicable to each commodity type is explicitly stated rather than left to interpretation at the time of a claim.

General average is a separate consideration that intersects with your excess. If the vessel carrying your cargo suffers a general average event — declared under the York-Antwerp Rules — you will be required to contribute to the common sacrifice in proportion to your cargo's value. Your cargo policy should respond to that contribution, and the general average contribution is typically not subject to the standard transit excess. However, if your policy carries a general average absorption clause (sometimes called a 'GA franchise'), small general average contributions below a stated threshold fall to you. Check whether your open cover contains such a clause, particularly if you are shipping on vessels where general average declarations are a realistic possibility.

Excess Structures and Your Contractual Obligations

Your sale contract, charter party, or bill of lading terms will often dictate the minimum insurance you must carry — and sometimes the maximum excess you are permitted to accept. Under CIF and CIP Incoterms, you are obliged to provide the buyer with insurance that meets a defined standard. Under CIP (revised 2020), that standard is ICC (A) cover, and if your policy carries a high excess, you may technically be in breach of your contractual obligation to deliver insurance that fully protects the buyer's interest.

Under Hague-Visby Rules, the carrier's liability for cargo damage is subject to package and weight limitations that may be significantly lower than the actual value of your goods. If you are a cargo owner relying on the carrier's liability to cover a loss, the carrier's Hague-Visby limit may not cover your full claim — and your own cargo policy excess then becomes the difference between a full recovery and a shortfall. This is one of the strongest arguments for maintaining your own cargo cover with a carefully negotiated excess, rather than relying on the carrier's P&I-backed liability.

If you are a freight forwarder operating under BIFA Standard Trading Conditions or CMR for road legs, your liability to your customer is capped, and your freight liability policy will carry its own excess structure separate from any cargo policy your customer holds. Make sure the excess on your freight liability cover is aligned with the claims you are realistically likely to face — a high excess on a freight liability policy can leave you personally exposed on mid-range claims that fall between your liability cap and your excess.

What to Bring to Your Broker at Renewal

Arriving at renewal with the right information gives your broker the material needed to negotiate excess terms rather than simply accept what underwriters offer as standard. The London company market responds to evidence — a well-documented submission will consistently outperform a bare-bones one.

Prepare the following before your renewal meeting so your broker can build a submission that supports a competitive excess structure.

• Five-year claims history: date, commodity, transit route, cause of loss, gross claim, and recovery from carriers or third parties.
• Annual shipment schedule: total declared value, number of sendings, commodity breakdown, and principal trade lanes.
• Packing and survey standards: any third-party packing audits, pre-shipment survey reports, or warehouse security certifications.
• Storage locations and maximum values at risk: including any intermediate warehouses, bonded stores, or port storage.
• Contractual insurance requirements: copies of relevant Incoterms obligations, charter party insurance clauses, or letter of credit insurance conditions.
• Current policy MRC slip: so your broker can identify any excess clauses that have crept in at previous renewals and may be negotiable.

Frequently asked questions

Do I need a separate excess for each commodity I ship under my open cover?

Not necessarily, but it is common for underwriters to apply a higher excess to specific high-risk commodities — electronics, pharmaceuticals, and high-value consumer goods are typical examples — even within a single open cover. Your MRC slip should specify any commodity-specific excess conditions. If it does not, ask your broker to clarify in writing before you make a declaration for a high-value shipment, because ambiguity at the time of a claim will not be resolved in your favour.

What happens if my cargo is damaged and the loss is less than my excess?

You bear that loss entirely. Underwriters will not contribute to a claim that falls below the excess, and you cannot accumulate multiple small losses within a policy year to breach the excess threshold unless your policy specifically contains an aggregate excess structure. This is why the excess level matters most on your most frequent, lower-value transit routes — a high excess on a high-frequency trade lane can mean you effectively have no working insurance for attritional losses.

How long does it take to bind a cargo policy with a negotiated excess structure?

A straightforward annual open cover for a UK-based importer or exporter with a clean claims record can typically be bound within five to ten working days of a complete submission reaching underwriters. More complex placements — high-value commodities, unusual trade lanes, or buyers with a claims history that requires explanation — will take longer. Providing your broker with a complete submission at the outset, including your five-year claims record and contractual requirements, is the single most effective way to avoid delays.

Can I negotiate a nil excess on theft claims if I use GPS tracking on my containers?

It is possible, and underwriters in the London company market do respond to active risk management evidence. GPS tracking, tamper-evident seals, and documented chain-of-custody procedures all support a case for a reduced theft excess. However, underwriters will also look at the specific routes involved — a nil theft excess is much easier to achieve on low-risk European road legs than on transits through regions with elevated cargo crime. Your broker should present the tracking evidence as part of a structured submission rather than simply asking for a nil excess without supporting context.

Does my excess apply to a general average contribution?

Generally no, provided your policy does not contain a general average absorption clause. Under standard ICC (A) cover, your general average contribution is a recoverable loss separate from the transit excess. However, some open covers — particularly those placed on older wordings or heavily amended slips — include a GA absorption clause that requires you to bear small general average contributions below a stated threshold. Check your MRC slip for any reference to general average absorption or GA franchise, and ask your broker to remove it if it is present.

What do you need from me to review my current excess structure?

Send us your current MRC slip or policy schedule, your five-year claims summary, and a brief description of your principal trade lanes and commodity types. If you have any contractual insurance requirements — Incoterms obligations, letter of credit conditions, or charter party insurance clauses — include those as well. With that information we can identify whether your current excess is market-standard for your risk profile or whether there is a case to negotiate improved terms at your next renewal.