How Public Procurement Works in the UK

UK public procurement is governed by law, not just internal buyer policy - which is exactly what makes it predictable enough to plan around, once you know the shape of it.

The current legal framework

Since the Procurement Act 2023 came into force (from February 2025), most public contracts in England, Wales, and Northern Ireland are governed by one unified set of rules, replacing the previous patchwork of regulations that had built up since the UK left the EU's procurement regime. Scotland runs its own, separate regulatory framework. The Act's stated aims include simplifying the rules, giving buyers more flexibility in how they run a competition, and putting more weight on social value and value for money rather than lowest price alone.

The common procedure types

Not every tender runs the same way. The main shapes a buyer can choose (a simplified summary - the Act allows a fair amount of buyer discretion in exactly how these are run):

• Open procedure - anyone can submit a full bid straight away, no pre-qualification stage. Common for simpler or lower-value contracts.
• Competitive flexible procedure - the Act's more adaptable replacement for the old multi-stage procedures (restricted, competitive dialogue, competitive procedure with negotiation). Buyers design a process suited to the specific contract - often a shortlisting stage first, then a smaller number of bidders invited to submit a full, detailed proposal.
• Framework agreements and dynamic markets - rather than a single contract, the buyer pre-approves a pool of suppliers, then calls off individual pieces of work from that pool as needed, sometimes via a lighter "mini-competition" between framework members instead of a full fresh tender each time.

Thresholds: when the full rules apply

Below certain contract values, public bodies have much more freedom in how they buy - which is exactly why so many opportunities appear on Contracts Finder that never reach Find a Tender at all. Above those thresholds (which differ for central government, other public bodies, and works contracts, and are reviewed periodically), the full competitive process and above-threshold notice requirements apply. The exact figures change over time, so we're deliberately not quoting them here as if fixed - the current thresholds are always published on gov.uk.

Award criteria: it's rarely just price

Most tenders are scored against a published set of criteria, typically a mix of price and quality (technical approach, relevant experience, social value commitments, sustainability). The exact weighting is set out in the tender documents themselves, and reading it carefully - and answering exactly what's asked, in the structure asked for - consistently matters more to the outcome than most first-time bidders expect.

Where this tool fits

None of the above changes what the actual day-to-day problem is for a business trying to win this work: contract notices are spread across several different platforms, published continuously, and easy to miss if you're not checking constantly. Contract Scanner exists to solve exactly that one problem - it doesn't replace understanding the rules above, but it does mean you see the notices worth reading in the first place.

This is a general overview, not legal advice - always check gov.uk's current guidance for anything you're relying on.