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Subcontractor prequalification scorecard
Assess a subcontractor against knockout requirements and a weighted scorecard across safety, capability, financial standing, quality and conduct. Exports a signed-off record with the document checklist.
What prequalification is for
Prequalification is the decision about whether a subcontractor should be allowed to tender at all, made before anyone is under time pressure. It is deliberately separated from the tender assessment, because the two decisions pull in opposite directions: prequalification asks whether this business can safely and reliably do the work, and tender assessment asks what they will charge.
Combine them and price wins, every time. A subcontractor with no current workers compensation cover and the sharpest number in the field will be argued into the job by someone who needs the package let this week.
The point of doing it in advance is that the answer is already on file when the pressure arrives.
Why knockouts are not points
Most prequalification scorecards weight everything. Insurance is worth some points, safety is worth some points, capability is worth some points, and a total emerges. This is the wrong shape for the problem, because it lets a strong performance in one area compensate for a disqualifying failure in another.
A subcontractor with an excellent safety record and no workers compensation policy does not score slightly lower. They are not eligible, and no amount of good performance elsewhere changes that. The same is true of an expired licence, a mismatch between the insured entity and the contracting entity, and an undisclosed insolvency event.
This scorecard puts those requirements outside the weighting entirely. Fail one and the assessment fails, and the tool names which one, so the conversation with the subcontractor is about a specific fixable thing rather than about a number.
The failure that catches everyone: entity mismatch
The single most common prequalification defect is not a missing certificate. It is a certificate that covers a different legal entity from the one that will sign the subcontract.
It happens innocently. The quote comes in under a trading name. The insurance was arranged years ago in the name of the original company. A restructure created a new entity for the operating business and nobody updated the broker. Each step is unremarkable and the result is a subcontract with a company that has no cover.
Check the ABN on the certificate of currency against the ABN on the subcontract, every time, and verify the certificate with the insurer or broker rather than accepting a scanned copy. A forged or expired certificate of currency looks exactly like a current one.
Concentration risk, and why it is a rule of thumb
A widely used commercial guideline is to keep any single package below roughly a quarter of a subcontractor’s annual turnover. The logic is straightforward: if this job is most of their year, then their survival and your programme are the same problem, and any disruption on their side becomes yours immediately.
It is a rule of thumb, not a standard, and it is easy to apply badly. A subcontractor for whom the package is forty per cent of turnover may be perfectly sound if they are growing, well-capitalised and have said so. One at fifteen per cent may be in trouble for reasons the ratio cannot see.
The tool asks for your own limit rather than imposing one, and treats exceeding it as a prompt to look harder at their other commitments and cash position, not as a disqualification.
Prequalification expires quietly
The common failure is not a bad assessment. It is a good assessment that nobody revisited. Approval gets recorded, the subcontractor goes into the system, and two years later they are on site under a status that was accurate when it was granted.
Insurance lapses on its own schedule. Licences renew on another. A subcontractor who was well-resourced last year may now be carrying three jobs they cannot staff, and nothing about that shows up until the programme slips.
Set the diary reminder against the earliest insurance expiry rather than the annual review date. Cover almost always lapses first, and an uninsured subcontractor on site is a problem that belongs to the head contractor long before it belongs to them.
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