Quick answer: Contract KPIs that are designed around compliance and risk protection often create reporting burdens that smaller, specialist suppliers cannot absorb. If your performance framework looks the same regardless of contract value or supplier size, it is almost certainly calibrated for the wrong market.
The KPI Problem Nobody Talks About
Most procurement teams spend considerable energy on market engagement, supplier development events, and carefully worded procurement documents designed to attract a wider range of suppliers. Then they attach a contract management framework that was built for a £50 million outsource deal to a £400,000 service contract, and wonder why only the usual large primes bother to bid.
KPIs are not neutral. They signal to the market what it actually costs to hold one of your contracts. And if that cost — in management time, reporting systems, and governance overhead — is disproportionate to the contract value, smaller suppliers do the maths quickly and walk away.
What Proportionate Actually Means
The Procurement Act 2023 uses the word proportionate repeatedly, and for good reason. Proportionality is not just about evaluation criteria or selection questions. It applies to the ongoing obligations you place on suppliers throughout contract delivery.
A proportionate KPI framework for a smaller contract asks: what do we genuinely need to measure to know this contract is delivering value? It does not ask: what would we measure if we were managing a large outsourcing relationship and needed to protect ourselves from every conceivable failure mode?
Those are very different questions, and they produce very different frameworks.
The Reporting Burden Problem
I have reviewed contract management frameworks where a £300,000 annual contract required the supplier to submit monthly data returns across fourteen KPI categories, attend quarterly review meetings with a formal agenda and written minutes, maintain a risk register in a prescribed format, and provide an annual self-assessment against a twelve-page performance matrix.
The organisation producing those requirements genuinely believed they were being thorough. What they were actually doing was filtering their supplier market down to organisations with a dedicated contract compliance function. Which, at that contract value, means large primes and framework aggregators. Not the specialist SMEs they had been trying to attract for the previous two years.
Social Value Makes This Worse If You Are Not Careful
The growth of social value reporting requirements adds another layer. In principle, measuring social value outcomes is entirely right. In practice, if you require monthly social value MI returns, narrative impact reports, and beneficiary data collection from a small supplier with a team of eight people, you are not measuring social value. You are measuring the supplier's administrative capacity.
Proportionate social value measurement means being clear about what evidence genuinely demonstrates delivery, and accepting that a smaller supplier will provide that evidence differently from a large one. A case study, a payslip confirming a local hire, a training certificate — these are legitimate evidence. Requiring a quarterly impact dashboard formatted to your house template is not proportionate measurement. It is bureaucratic theatre that advantages whoever has the most administrative resource.
What Good Looks Like
A well-designed KPI framework for a smaller contract has three characteristics.
First, it focuses on outcomes, not activity. Measure whether the service is being delivered to the required standard, not whether the supplier has completed the correct number of process steps. If the outcome is right, most of the process questions answer themselves.
Second, it scales the reporting frequency and format to the contract value and risk profile. A £200,000 contract does not need monthly reporting cycles. A quarterly review and an annual performance summary will capture what you need without consuming a disproportionate share of the supplier's management time.
Third, it distinguishes between information you will actually use and information you are collecting because the template has always included it. Most contract management teams, if they are honest, use about a third of the data they require suppliers to produce. The rest sits in a shared drive and is looked at only when something goes wrong.
The Procurement Act Angle
Under the Procurement Act 2023, contracting authorities have strengthened obligations around transparency and the treatment of SMEs. Applying disproportionate contract management burdens to smaller suppliers is difficult to square with those obligations, particularly where the effect is to make contract delivery economically unviable for the suppliers your procurement strategy is supposed to be developing.
If your organisation has a supplier development programme, a commitment to increasing SME spend, or a published market engagement strategy, it is worth reviewing whether your standard contract management framework is actively working against those commitments. In many cases, it is.
Practical Takeaway
Before your next contract mobilisation, sit down with the contract manager and ask one question: if a capable eight-person specialist business wins this contract, can they actually deliver the reporting and governance requirements without it becoming a significant loss-making exercise? If the honest answer is no, the framework needs to change before award, not after the supplier starts raising concerns at month three.