Framework Due Diligence Checklist for Public Sector Buyers in 2026

Purpose: A buyer-side due diligence sequence for selecting a framework in the Procurement Act 2023 environment.

A buyer-side due diligence sequence for selecting a framework in the Procurement Act 2023 environment. This matters because public procurement decisions are rarely isolated events. A choice made during planning can affect competition, affordability, service quality, supplier behaviour and the ability to manage the contract later. The strongest approach is therefore to use the source guidance as part of an end-to-end commercial process, with clear ownership and evidence rather than as a document that is completed after the key decisions have already been taken.

Quick summary

• The Framework Practice Guide says a buyer cannot delegate responsibility for lawful procurement and sound commercial judgement simply by using a framework.
• Buyers may need to undertake a Public Interest Test where that policy applies before deciding to use a framework.
• The Guide points to delivery model and internal governance work before the route to market is fixed.
• It directs buyers to Find a Tender Summarised Search as part of pre-procurement framework checks.
• It stresses the importance of understanding who established the framework and the risks associated with different provider models.

What the guidance means in practice

The source material gives several anchors for that process. The Framework Practice Guide says a buyer cannot delegate responsibility for lawful procurement and sound commercial judgement simply by using a framework. Buyers may need to undertake a Public Interest Test where that policy applies before deciding to use a framework. The Guide points to delivery model and internal governance work before the route to market is fixed. These are not interchangeable statements: some describe statutory or policy requirements and others describe recommended commercial practice. Teams should identify which category each requirement falls into, apply it to the organisation and procurement in scope, and keep a record of the judgement. Where guidance from 2021 or 2023 predates the Procurement Act 2023, its commercial principles can remain useful, but current legislation, regulations and current statutory guidance take precedence on legal process.

The practical value becomes clearer when the remaining guidance is read alongside the project lifecycle. It directs buyers to Find a Tender Summarised Search as part of pre-procurement framework checks. It stresses the importance of understanding who established the framework and the risks associated with different provider models. It recommends checking whether the original market assessment remains valid rather than assuming the market has not changed. In day-to-day terms, this means the buyer should be able to answer three questions at any approval point: what outcome are we trying to achieve, what evidence supports the proposed commercial approach, and what will need to be managed after the decision is made? If those answers are weak, more analysis is normally more useful than adding another layer of narrative to an approval paper.

A practical process to follow

A proportionate process can be built into existing governance. The steps below are deliberately practical. They are not a substitute for the detailed source guidance, legal advice or local standing orders, but they provide a useful structure for a procurement or commercial team.

1. Step 1. Confirm the service-delivery decision and why a framework route may be appropriate. Record any assumption that could change the conclusion and when it will be reviewed.
2. Step 2. Search available commercial tools and compare genuine alternatives. Keep the analysis proportionate to the value, risk, novelty and criticality of the requirement.
3. Step 3. Identify the legal provider, provider model and procurement regime. Capture the source evidence and name the person accountable for the next decision.
4. Step 4. Review scope, term, value, suppliers, lots, fee model, call-off rules and published notices. Record any assumption that could change the conclusion and when it will be reviewed.
5. Step 5. Check market validity, financial standing arrangements, policy flexibility and provider support. Keep the analysis proportionate to the value, risk, novelty and criticality of the requirement.
6. Step 6. Document the reasons for selecting the framework and then plan the call-off. Capture the source evidence and name the person accountable for the next decision.

What good looks like

Good practice is visible in the decision trail, not only in the final document. A reviewer should be able to follow the line from the service need, through market and cost evidence, to the route, evaluation, contract terms and management arrangements. Where several functions contribute, the file should show who owns each decision and where challenge occurred. The same principle applies to handover: useful assumptions, models, KPI definitions, risks, supplier information and approval conditions should move into mobilisation and contract management instead of being left in the sourcing archive. This continuity is particularly important for long-running public services, where staff can change but the organisation remains accountable for the outcome.

Recommendations for procurement teams

The following recommendations are suitable for teams that want to embed the topic into normal ways of working rather than create a parallel compliance process:

• Use a standard due diligence checklist.
• Review original notices, not only provider summaries.
• Understand what provider support is included and what the buyer must resource.
• Check whether provider pricing data is useful for the local Should Cost Model.
• Assess whether supplier exits or consolidation have changed the market.
• Obtain legal and commercial advice on unusual hosted arrangements.

Common pitfalls to avoid

The most common problems are usually process failures rather than a lack of templates. Watch particularly for the following:

• Selecting the first familiar framework.
• Comparing fees without comparing the services they fund.
• Assuming the provider owns contract management of the buyer call-off.
• Failing to examine risk in the framework original establishment.

Easy-to-read takeaway

For framework due diligence checklist for public sector buyers in 2026, the core discipline is to start early, connect the analysis to a real decision and preserve enough evidence for the next stage of the lifecycle. The source material should help teams make better decisions, not merely produce more paperwork. Before acting on a live procurement, confirm the current version of the Procurement Act 2023, regulations, Procurement Policy Notes and any organisation-specific approvals or delegations. This is especially important for thresholds, notice duties, exemptions and policy requirements that can change over time.

Source basis

Primary source used: The Framework Practice Guide, 2026. Related articles in this collection also draw on the other supplied Cabinet Office, HM Treasury and Procurement Act materials where the topics overlap.

This article is general procurement support content. It should be read alongside current legislation, statutory guidance and your organisation’s own governance and legal advice.