A Claim Can Be Entitled and Still Be Worth Nothing on Paper
Why quantum is a separate discipline from entitlement — and usually the weaker half of the claim
Entitlement answers whether a party has a right to compensation.
Quantum answers a different question: what is that right actually worth, and can the amount claimed be demonstrated to have been caused by the event relied on?
The two are often treated as if they were part of the same exercise. They are not.
A claim can be well founded in principle and still lose much of its practical value because the amount attached to it cannot be traced back to the relevant event with enough precision to withstand scrutiny.
In many claims, entitlement is not the weakest part. Quantum is.
ENTITLEMENT IS NOT THE SAME QUESTION AS VALUE
Entitlement asks: did an event occur that the contract recognises as giving rise to a right to additional payment or time?
Quantum asks: what financial consequence did that event actually produce, and can that consequence be demonstrated rather than simply asserted?
A party can therefore be entirely right on entitlement and still present a weak quantum case. The problem may be that the cost records do not isolate the effect of the relevant event from everything else happening on the project at the same time. Or the valuation method may not reflect the mechanism required by the contract. Or the claimed amount may contain costs that are real, but whose causal connection to the compensable event has not been sufficiently demonstrated.
𝗘𝗻𝘁𝗶𝘁𝗹𝗲𝗺𝗲𝗻𝘁 𝗲𝘀𝘁𝗮𝗯𝗹𝗶𝘀𝗵𝗲𝘀 𝘁𝗵𝗲 𝗿𝗶𝗴𝗵𝘁. 𝗤𝘂𝗮𝗻𝘁𝘂𝗺 𝗵𝗮𝘀 𝘁𝗼 𝗲𝘀𝘁𝗮𝗯𝗹𝗶𝘀𝗵 𝘄𝗵𝗮𝘁 𝘁𝗵𝗮𝘁 𝗿𝗶𝗴𝗵𝘁 𝗶𝘀 𝘄𝗼𝗿𝘁𝗵.
THE METHOD MATTERS AS MUCH AS THE NUMBER
Quantum is not simply an exercise in identifying the largest number that can be associated with an event. The method matters. And the appropriate method is normally constrained by three things: the contractual valuation mechanism, the nature of the event, and the quality and structure of the available records.
Where the contract permits it and the project records allow the additional cost to be isolated, an actual cost approach can provide a particularly strong evidentiary link between the event and the financial consequence claimed. But actual cost is not automatically the applicable method. For variations, for example, the contract may first require valuation through existing rates and prices, derived rates, agreed rates or another contractual mechanism. The starting point must therefore remain the contract.
At the other end of the spectrum sits the total cost approach. A total cost methodology broadly compares the actual out-turn cost with an expected or tendered cost and attributes some or all of the difference to the event relied on. Its weakness is obvious: it requires assumptions about what the project would have cost in the absence of the relevant event and about the extent to which other causes contributed to the overrun. On a complex project, those assumptions are rarely uncontested.
Between actual cost and total cost sits a range of adjusted, modified and event-specific approaches, each with different evidentiary requirements. The choice of method should therefore follow the contract and the evidence. Not the number the claimant would prefer to reach.
TOTAL COST AND GLOBAL CLAIMS ARE NOT THE SAME THING
The concepts are often discussed together, but they should not be confused. A total cost methodology is primarily a method of quantification. A global claim is primarily a way of presenting causation and impact on an aggregated basis. They may overlap. But they are not the same thing.
The evidentiary weaknesses can nevertheless be similar: both can become vulnerable where the analysis does not adequately separate the consequences of compensable events from other causes of cost growth or disruption.
WHY GLOBAL CLAIMS ARE TREATED WITH SUSPICION
A global claim typically presents an aggregate financial impact and argues that a group of events for which the respondent is responsible caused that overall loss, without allocating every individual cost consequence to every individual event.
That does not necessarily make the claim invalid. Complex projects do not always permit perfect event-by-event segregation. But aggregation increases the evidentiary burden. The more global the presentation becomes, the more important it is to explain which events are relied upon, why they are contractually compensable, how they affected the works, what other potential causes existed, how the claimed cost was derived, and why a more granular analysis was not reasonably possible.
A credible quantum case does not pretend that perfect precision always exists. But it should demonstrate causation at the highest level of precision the available records reasonably allow. Aggregation should be the consequence of the evidence. Not a substitute for analysing it.
DIRECT COSTS ARE ONLY PART OF THE PICTURE
Quantum substantiation often concentrates first on direct costs: labour, plant, materials, subcontract costs, and resources directly associated with changed, additional or disrupted work. Those costs are often easier to identify.
The more difficult areas tend to be indirect costs. Prolongation may generate additional site overheads. Delay may create extended supervision, temporary facilities, site management, accommodation, security, utilities and other time-related costs. There may also be claims for head office overhead impact. These require a different level of analysis.
Formulae are sometimes used in the assessment of head office overheads, depending on the contract, governing law, applicable methodology and factual circumstances. But a formula is not, by itself, proof of loss. The claimant may still need to demonstrate the factual and causal basis for the claimed head office impact rather than relying on the formula alone.
The same principle applies more broadly: 𝗔 𝗰𝗮𝗹𝗰𝘂𝗹𝗮𝘁𝗶𝗼𝗻 𝗺𝗲𝘁𝗵𝗼𝗱 𝗰𝗮𝗻 𝗾𝘂𝗮𝗻𝘁𝗶𝗳𝘆 𝗮 𝗹𝗼𝘀𝘀. 𝗜𝘁 𝗱𝗼𝗲𝘀 𝗻𝗼𝘁, 𝗯𝘆 𝗶𝘁𝘀𝗲𝗹𝗳, 𝗽𝗿𝗼𝘃𝗲 𝘁𝗵𝗮𝘁 𝘁𝗵𝗲 𝗹𝗼𝘀𝘀 𝘄𝗮𝘀 𝗰𝗮𝘂𝘀𝗲𝗱 𝗯𝘆 𝘁𝗵𝗲 𝗿𝗲𝗹𝗲𝘃𝗮𝗻𝘁 𝗲𝘃𝗲𝗻𝘁.
RECORDS DECIDE WHAT QUANTUM METHOD IS EVEN AVAILABLE
The eventual quantum strategy is heavily constrained by what the project recorded while the relevant event was still live.
Consider two projects. On the first: cost codes identify the affected scope, timesheets are linked to activities, plant records identify where resources were deployed, subcontract costs are separated, variation and event references are embedded in the commercial records, and contemporaneous records show when the additional cost began and ended. That project may support a granular actual-cost analysis.
On the second: costs are recorded only at general ledger level, labour records do not identify affected activities, plant utilisation is not linked to events, additional and original scope are mixed together, and no event-specific cost coding was established. That project may eventually have little realistic choice but to rely on a more aggregated approach — not because that approach is preferred, but because the evidence required for something more precise was never created.
This is why quantum strategy, like EOT strategy, cannot be fully developed only when the claim document is being drafted. By then, many of the critical decisions have already been made — when the cost coding structure was established, when timesheets were completed, when variation records were maintained, when plant was allocated, when subcontract accounts were separated or not, and when project teams decided whether an event deserved its own commercial record.
𝗧𝗵𝗲 𝗾𝘂𝗮𝗹𝗶𝘁𝘆 𝗼𝗳 𝗾𝘂𝗮𝗻𝘁𝘂𝗺 𝗶𝘀 𝗼𝗳𝘁𝗲𝗻 𝗱𝗲𝗰𝗶𝗱𝗲𝗱 𝗹𝗼𝗻𝗴 𝗯𝗲𝗳𝗼𝗿𝗲 𝘁𝗵𝗲 𝗾𝘂𝗮𝗻𝘁𝘂𝗺 𝗮𝗻𝗮𝗹𝘆𝘀𝗶𝘀 𝗯𝗲𝗴𝗶𝗻𝘀.
CAUSATION SITS BETWEEN ENTITLEMENT AND QUANTUM
A claim does not become financially persuasive simply because entitlement has been established and costs have been identified. There must still be a defensible bridge between the two.
EVENT → ENTITLEMENT → CAUSATION → QUANTUM → SUBSTANTIATION
The project may genuinely have incurred £2 million of additional cost. That does not automatically mean the event relied upon caused £2 million of compensable loss. Other events may have occurred during the same period. Contractor inefficiency may have contributed. Scope may have changed for unrelated reasons. Productivity may have been affected by several overlapping causes. Some costs may have been incurred regardless of the compensable event.
Quantum therefore requires more than cost evidence. It requires cost evidence connected to causation.
THE PRINCIPLE
Entitlement establishes that a contractual right exists. Quantum establishes what that right is worth. Substantiation demonstrates why the value claimed should be accepted.
A claim built on strong entitlement and weak quantum is therefore not simply a strong claim with a minor evidentiary gap. Its commercial value may remain substantially uncertain — because a value that cannot be demonstrated gives an Engineer, counterparty, adjudicator, tribunal or other decision-maker little reason to accept that value at face value.
The strength of quantum, like the strength of entitlement, is largely determined before the claim is drafted. In how costs were coded. In how records were maintained. In how additional resources were identified. And in how deliberately the connection between event, impact and cost was preserved while the project was still live.
𝗡𝗼𝘁 𝘁𝗵𝗲 𝗹𝗮𝗿𝗴𝗲𝘀𝘁 𝗻𝘂𝗺𝗯𝗲𝗿. 𝗧𝗵𝗲 𝗼𝗻𝗲 𝘆𝗼𝘂 𝗰𝗮𝗻 𝗽𝗿𝗼𝘃𝗲.
HOW ACC TRUST CAN SUPPORT
ACC TRUST supports contractors, employers and project teams in building and reviewing quantum positions that can withstand contractual and commercial scrutiny, including:
selecting quantum methodology appropriate to the contract, the event and the available records;
reviewing the contractual valuation mechanism before determining the appropriate quantum approach;
structuring cost coding and record-keeping systems to support later causation analysis;
distinguishing and substantiating direct costs, site overheads and head office overhead impacts;
reviewing total cost, modified total cost and global claims for the causal links and evidentiary assumptions they will need to withstand challenge;
independent review of quantum submissions before issue;
quantum analysis and claim defence where valuation is disputed;
identifying evidentiary gaps early enough for the project team to strengthen the commercial record before positions become fixed.
The objective is not simply the largest defensible number. It is a quantum position built on evidence that can support it at the level of precision against which the claim is likely to be tested.
For independent support on claims strategy and quantum substantiation:
Discover ACC TRUST’s services:
→ https://acctrust.ro/services
Discuss a specific project with us:
→ office@acctrust.ro
About ACC Trust Insights
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