Procurement Act 2023: What It Means for UK Public Sector Buyers
The Procurement Act 2023 came into force on 24 February 2025, marking the most significant overhaul of UK public procurement law in a generation. Whether you work in the public sector or supply goods and services to it, understanding this legislation is no longer optional; it is a compliance requirement with direct consequences for how contracts are awarded, managed, and scrutinised.
What Does the Procurement Act 2023 Actually Change?
The previous procurement framework, built on the Public Contracts Regulations 2015, struggled to keep pace with modern challenges: financial instability in supply chains, growing ESG demands, and a lack of transparency around how supplier decisions were made. The new Act addresses each of these gaps head-on.
For contracting authorities, the shift is significant. Supplier risk is no longer something to assess once at the start of a tender process. The Act creates a clear expectation of continuous due diligence covering financial health, regulatory compliance, past performance, and ESG factors from initial market engagement right through to contract completion.
Exclusion Grounds: Mandatory and Discretionary
One of the most operationally important features of the Act is its structured approach to supplier exclusion. Mandatory exclusion applies where a supplier has been convicted of serious offences such as fraud, bribery, tax evasion, or modern trafficking; these cannot be overridden on commercial grounds.
Beyond this, discretionary exclusion covers factors like repeated contract failures, poor financial health, and ESG non-compliance. A publicly accessible debarment list, maintained by the Cabinet Office, now records suppliers that have been excluded creating a searchable audit trail that simply did not exist under the previous framework.
Transparency, KPIs, and the Notice Regime
The Act introduces a structured notice regime requiring contracting authorities to publish Pipeline Notices for contracts over £2 million, Tender Notices through the Find a Tender service, and Transparency Notices for any direct award. This creates a continuous public record of procurement decisions, making supplier selection more accountable than ever before.
For strategic contracts, mandatory key performance indicators must be defined, published, and monitored throughout delivery turning supplier performance into a formal, auditable compliance function rather than an internal management consideration.
Payment transparency also features prominently. Authorities must apply and publish 30-day payment terms across subcontracting arrangements, with delayed payment now recognised as a measurable early signal of supplier financial stress.
Conclusion
The Procurement Act 2023 is not simply a legislative update; it represents a fundamental change in how supplier risk, transparency, and accountability operate across UK public procurement. For buyers and suppliers alike, staying compliant means building the right data infrastructure, governance processes, and monitoring capabilities from the outset. Teams that treat the Act as an ongoing operational discipline, rather than a one-time checklist, will be far better positioned to manage risk and deliver value throughout the contract lifecycle.
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