Contracts
NEC vs JCT: a practical comparison
The two dominant UK contract families, what each is built to do, and which roles need which.
Updated 20 Jun 2026 · 7 min read
Almost every UK construction role that touches commercial management will name one of these two families. Knowing the difference is table stakes at interview.
NEC
Built for collaborative, programme-driven delivery. Heavy on early warnings, compensation events, and an actively maintained programme. Dominant in infrastructure — rail, highways, water, energy — and across most public sector frameworks.
JCT
Built for traditional and design-and-build procurement. More familiar to private developers and the commercial and residential markets. Less prescriptive about process, more reliant on established practice.
What it means for your CV
Listings increasingly name the form directly. If your experience is JCT-only and you want to move into infrastructure, expect NEC to be the gating question — and expect the first NEC role to pay a premium for people who have already run compensation events in anger.