Manual site diary review identifies roughly 60% of legitimate compensation events. The rest leak away unrecovered, usually surfacing far too late during final account preparation, if they surface at all.
The cost isn't the event. It's the event, plus the disruption you can no longer prove, plus the position you no longer have at final account.
On a mid-sized NEC4 project, teams routinely find the number runs to six figures once the pattern is totalled across a year. It rarely shows up as one large miss. It shows up as dozens of small ones nobody had time to chase.
Estimate the direct value of events that went unnotified
Add the events notified late and settled at a discount
Add the ones nobody found at all, usually the largest category and the hardest to face
This calculator now lives on QS Tools
QS Tools is our free sister platform, built by the founders of Gather. It's free, needs no Gather account, and it's where we keep the standalone calculators so they can be maintained properly in one place.
Gather is the AI site diary and commercial record platform this calculation sits inside. It reads your site diaries against your NEC4 contract and flags the compensation events a manual review misses. If that's the problem you're actually solving, book a demo.
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