Construction Retention Payments
A retention (or “retainage” in North America) is a portion of each payment — typically 1.5% to 5% of the contract sum — that the paying party withholds from the contractor or subcontractor as security. Half is usually released at practical completion and the balance after the defects liability period, so that the payer retains funds to remedy any defects and to incentivise the contractor to return and fix them. Unlike a payment delay, retention is withheld by contractual design: everyone agrees the money is being held back. The vault treats retention withholding as analytically distinct evidence from delay and from disputed invoices.
Construction Retention Payments [defines] Construction Payment Problem Construction Retention Payments [relates] Global Subcontractor Payment Delays
In practice the mechanism has become a recognised source of cash-flow strain and dispute. Common complaints, documented in repeated UK consultations, are that retentions are released late or never (long after the defects period), are used by upstream parties as working capital, and are lost entirely when an upstream contractor becomes insolvent. Because retention accumulates down every tier of the Construction Payment Pyramid, a subcontractor can have 5% of its turnover tied up across many projects at once — a disproportionate burden for small specialist trades.
Construction Retention Payments [causes] Contractor Insolvency and Subcontractor Risk Construction Retention Payments [part-of] Construction Payment Pyramid
The UK has moved furthest on reform. After decades of failed private member’s bills (the Construction Industry (Protection of Cash Retentions) Bill and the Construction (Retention Deposit Scheme) Bill, both of which proposed ring-fencing retentions in trust, and the later Construction (Retentions Abolition) Bill), the government ran a “Late Payments” consultation in mid-2025 and on 24 March 2026 announced — as part of the UK Late Payment Reform 2026 package — its intention to ban the withholding of retention payments outright via amendment to the Housing Grants Construction and Regeneration Act 1996. The package also adds a 60-day payment cap and mandatory statutory interest. Other jurisdictions have taken a softer route: New Zealand requires retention monies to be held in escrow/trust accounts rather than banning them.
UK Late Payment Reform 2026 [opposes] Construction Retention Payments UK Late Payment Reform 2026 [regulates] Housing Grants Construction and Regeneration Act 1996
The reform is contested, which the vault records honestly. The British Property Federation and others argue retention is a vital, low-cost quality-assurance tool and that an outright ban is “a sledgehammer to crack a nut” that will push costs up (bonds, milestone restructuring) and leave clients without leverage to secure defect remediation. Supporters argue the mechanism is abused so routinely that only abolition will fix it. This unresolved trade-off — cash-flow protection for subcontractors versus defect security for clients — is a core open question for the vault.
British Property Federation [opposes] UK Late Payment Reform 2026
Connections
- UK Late Payment Reform 2026 — proposes to ban retention withholding, source: 2026-03-24
- Housing Grants Construction and Regeneration Act 1996 — statute to be amended, source: 2026
- Global Subcontractor Payment Delays — related but distinct withholding, source: 2025
- Contractor Insolvency and Subcontractor Risk — retentions lost on upstream insolvency, source: 2024
- British Property Federation — opposes outright abolition, source: 2026