What is a compensation event?

A compensation event is the NEC contract's name for a change that can entitle you to more time and more money. NEC is one of the main families of standard construction contracts used in the UK, alongside JCT, and instead of variations and claims it uses this single defined term. The contract lists the events that qualify, from an instruction changing the Scope (the NEC word for the description of the work you have to do) through to unforeseen ground conditions and delays caused by the employer. What makes NEC different is that these events are priced forward through quotations, meaning you submit a costed and programmed offer for the effect at the time, rather than piecing together a claim long after the work is done. The teeth are in the timetable: if the Project Manager, the person running the contract for the employer, has not already notified the event, you generally must notify it yourself within a set period, commonly eight weeks of becoming aware, or your entitlement can be lost entirely. On NEC the paperwork is not administration around the claim, it is the claim, so notify and quote promptly and to time.

Picture a drainage contractor working under an NEC contract on a new distribution depot. Digging a trench one Monday, the crew hits a slab of undocumented concrete that no borehole survey had shown, and clearing it will cost extra plant and lose about a week. That unforeseen obstruction is one of the listed compensation events. The contractor notifies it in writing straight away and, when asked, submits a quotation setting out the added cost and the week of delay so the effect is agreed there and then rather than argued about later. Now picture the same crew saying nothing, pressing on, and only raising it at the final account nine months later. Because NEC ties entitlement to notifying within a set period, commonly eight weeks of becoming aware, the late claim risks being shut out on timing alone, however real the obstruction was. The event is identical; the difference between being paid and being time-barred is simply whether the contractor ran the paperwork on time.