When contracts are weak, projects drift: scope expands without control, acceptance becomes subjective, service levels are impossible to evidence, and disagreements turn into delay and additional cost. The UK has seen numerous high-profile IT programmes where overruns and partial delivery became the story.
Examples below are widely reported headline figures and are provided to illustrate the scale of risk when governance, scope and accountability are not adequately controlled.
- NPfIT (NHS) — multi‑billion pound programme reported to have substantially exceeded original budget, with partial delivery.
- Libra (Magistrates Courts) — reported to have grown from ~£146m to ~£447m amid delays and defects.
- C‑NOMIS (Prisons) — reported to have risen from ~£234m to ~£690m; described in official commentary as unsuccessful.
- DII (MoD) — reported to have increased from ~£2.3bn to ~£7.09bn with rollout delays.
- Emergency Services Network (ESN) — widely reported as years late and materially over budget.
- Single Payment Scheme (RPA) — reported to have cost ~£350m vs ~£75.8m estimate, followed by replacement spend.
- e‑Borders (Home Office) — reported as cancelled after ~£340m spent plus significant legal costs.
- Swanwick ATC system — reported to have overrun by ~£180m and delayed for years due to technical issues.
The lesson is consistent: success requires precise scope, measurable acceptance, controlled change, and governance that operates throughout the contract term — not just at signature.