Retentions have long been a source of tension in construction contracts: a portion of payment withheld until after completion or defect rectification. But proposed reforms to how retentions are handled may not just ease cash pressure—they could push small and mid-sized firms toward smarter operating models, financial tools, and more collaborative project delivery.
What’s Changing — and Why
The Department for Business & Trade is considering two major retention reforms:
- An outright ban on retentions — meaning the customary practice of withholding a percentage (commonly 3–5%) would no longer be permitted in construction contracts.
- “Protected retention” systems — where retention funds are held in a dedicated segregated account or secured via insurance or bonds, rather than being mixed with general contract cashflows.
Either reform would apply to construction contracts as defined under existing legislation, though some contracts (e.g. involving residential occupiers) may be excepted under the changes.
A construction law expert predicts that strengthening working capital for SMEs and reducing insolvency risks are likely benefits, regardless of which path is chosen. Whichever route is selected, the reforms are expected to reduce cash drag and improve financial resilience in a sector with notoriously tight margins.
Why SMEs Stand to Gain—and Why They’ll Have to Evolve
Small firms, which often bear the brunt of liquidity constraints, may find new breathing room as retentions are loosened or secured. Cash that would otherwise sit tied up can be used for investment, operations, or growth.
Importantly, the reforms may drive SMEs to adopt new financial practices and tools. For example:
- Dynamic cash management systems that forecast and optimize capital flows more precisely.
- Insurance and bonding solutions as part of standard contract strategies.
- Collaborative project models: with less retention leverage, parties may shift toward shared incentives, performance-based payments, or milestone frameworks.
- Better contract transparency: standardized retention terms, predictable cashflows, and account guarantees could reduce disputes and administrative burden.
As one legal voice put it, reforms may encourage more efficient project delivery by pushing payment methods, capital models, and contract designs to evolve.
Challenges & Potential Friction
Changing the retention regime is no small feat—several challenges must be negotiated:
- Industry resistance: Retentions have entrenched support, especially among larger clients who see them as risk buffers against quality issues. An outright ban may meet strong pushback.
- Implementation complexity: Protected retentions may require banks, insurers, and regulators to create new instruments, compliance checks, and oversight.
- Contractual overhaul: Many existing contracts assume retention practices. Rewriting contract templates, supplier chains, and systems will take time and legal effort.
- Enforcement & consistency: If protections vary by contract type or location, SMEs may still face uneven exposure.
What Could Shift First
One plausible path is that protected retention systems are adopted first—less disruptive, more politically feasible, and more workable with industry systems. An outright ban may remain aspirational.
Under protected retention, only a portion of retention may be withheld (for instance, only once practical completion is reached) with the rest held in protection until defect periods expire.
If a protected system is adopted, the capacity, trust, and infrastructure around insurance, escrow, or bonding firms will be tested—and that’s where innovation can leap forward.
The Big Takeaway
Retention reform isn’t just about cash flow—it’s a lever for change. For SMEs willing to adapt, this could spur adoption of better finance tools, improved contractual frameworks, and more collaborative working methods. The construction sector, often slow to change, may find fresh energy as cash constraints ease and incentives align for smarter project delivery.

