UK ban on cash retentions: contract risk and cashflow lens for SMEs and project teams
Reviewed by Joe Ashwell
First reported on New Civil Engineer
30 Second Briefing
A proposed UK ban on cash retentions in construction contracts is raising questions over whether it will genuinely improve cashflow and risk allocation for SMEs in the supply chain. Retentions, typically 3–5% of contract value and often withheld for 12–24 months after practical completion, have become de facto standard despite never being mandated in law. Contractors and consultants are now weighing alternatives such as project bank accounts, performance bonds and retention bonds, and assessing how these could alter pricing, security for defects, and contractual behaviour on infrastructure schemes.
Technical Brief
- Retentions, while ubiquitous in UK contracts, have never been a statutory requirement under construction law.
- Their use has become embedded through standard forms and bespoke amendments rather than primary legislation.
- Main contractors may seek alternative security by tightening defects clauses, extending warranty periods or increasing collateral warranties.
- Surety providers and banks are likely to reprice performance and retention bonds if retentions disappear contractually.
- Any statutory ban would interact with existing Construction Act payment provisions, adjudication rights and pay‑less notice mechanisms.
Our Take
New Civil Engineer’s role as organiser of UK awards and innovation challenges in related articles suggests it is shaping not just commentary but also industry norms, which may give its coverage of SME retentions particular influence with major public and private clients.
Prepared by collating external sources, AI-assisted tools, and Geomechanics.io’s proprietary mining database, then reviewed for technical accuracy & edited by our geotechnical team.
