PSIP

Procurement Act 2023: What Suppliers Must Know in 2027

The Act has been in force since February 2025. This guide covers what changed from the 2015 Regulations, what each new mechanism means when you bid, and what to do differently in 2027 — written for SME suppliers bidding in England, Wales and Northern Ireland.

Published by PSIP·October 2026·18 min read

Quick answer: The Procurement Act 2023 replaced the Public Contracts Regulations 2015 on 24 February 2025 for public buyers in England, Wales and Northern Ireland; Scotland keeps its own rules. In 2027 the changes that matter most to suppliers are registering on the Central Digital Platform, competitive flexible procedures the buyer designs, open frameworks, 30-day payment terms implied down the supply chain, a central debarment list, assessment summaries in place of standstill letters, and pipeline notices showing larger buyers' plans 18 months ahead. Procurements started under the old rules still finish under them, so you will meet both regimes for a while yet.

What the Procurement Act 2023 is, and who it covers

The Procurement Act 2023 received Royal Assent on 26 October 2023 and came into force on 24 February 2025. It replaced four sets of EU-derived regulations — the Public Contracts Regulations 2015, the Utilities Contracts Regulations 2016, the Concession Contracts Regulations 2016 and the Defence and Security Public Contracts Regulations 2011 — with one Act and the regulations made under it.

It applies to public buyers in England, Wales and Northern Ireland — central government and its agencies, local authorities, NHS bodies, police and fire authorities and other public bodies — and to utilities. Three main groups of opportunities sit outside it:

Scotland's devolved public bodies

The Scottish Government, Scottish councils, NHS Scotland and other devolved bodies keep their own regime under the Procurement Reform (Scotland) Act 2014 and the Public Contracts (Scotland) Regulations 2015. See our guide to Public Contracts Scotland.

Healthcare services in England

NHS bodies and local authorities in England arranging healthcare services use the Provider Selection Regime, not the Act. The goods and other services they buy are still under the Act, unless bought with healthcare services in a contract that is mainly for healthcare and could not reasonably be split — our guide to NHS procurement frameworks covers the main routes in.

Procurements started before 24 February 2025

These finish under the old regulations, and call-offs from frameworks let under the old regulations stay under them too. Old-rules frameworks normally run for up to four years, so you will meet both regimes through 2027.

The Act also sets objectives every buyer must have regard to: delivering value for money, maximising public benefit, sharing information, and acting, and being seen to act, with integrity. Buyers must have regard to the barriers small and medium-sized enterprises face and consider whether they can be removed or reduced, and must consider whether a contract could be split into lots, giving reasons if they decide not to.

The dates that matter in 2027

WhenWhat happens
26 October 2023The Procurement Act 2023 receives Royal Assent.
24 February 2025The Act comes into force. Procurements started from this date run under it.
Through 2027 and beyondCall-offs continue under frameworks let under the old rules, which normally run for up to four years.
By late May 2027Pipeline notices are due from larger buyers whose financial year starts on 1 April, covering the 18 months to 30 September 2028.
By the end of 2028Open frameworks first awarded in 2025 must have reopened to new suppliers at least once.
1 January, every two yearsProcurement thresholds are revised.

Thresholds include VAT under the Act. Check the current figures in our guide to UK procurement thresholds before relying on one.

What changed from the Public Contracts Regulations 2015

Plenty is unchanged. Requirements are still advertised, tenders are still assessed against published criteria, CPV codes still classify notices, and suppliers can still challenge a decision in court. These are the differences that change how you bid:

AreaPCR 2015Procurement Act 2023
The rulebookFour sets of regulations: PCR 2015, plus separate regulations for utilities, concessions, and defence and securityOne Act and the regulations made under it, covering all four
ProceduresOpen, restricted, competitive procedure with negotiation, competitive dialogue, innovation partnershipThe open procedure, or a competitive flexible procedure the buyer designs
Choosing the winnerMost economically advantageous tender (MEAT)Most advantageous tender (MAT), against the published criteria
Supplier checksSelection criteria, usually through a selection questionnaireConditions of participation, with core supplier information held on the Central Digital Platform
Feedback on the decisionA standstill letter to biddersAn assessment summary for every assessed tender
Standstill10 calendar days when the decision was sent electronically8 working days from the contract award notice, for most contracts
FrameworksClosed for their whole term, normally up to 4 yearsStandard frameworks normally up to 4 years; open frameworks reopen and can run up to 8 years
Join-at-any-time listsDynamic purchasing systemsDynamic markets
ExclusionsMandatory and discretionary grounds, self-declared bid by bidRevised grounds, applied to the supplier and its connected persons, plus a central debarment list
TransparencyMainly contract notices and award notices, with Contracts Finder for English contractsNotices across the contract lifecycle, from pipeline to termination
Payment30-day terms required in contracts, and required to be passed down30-day terms implied by law into public contracts and their sub-contracts
PerformanceNo legal duty to publish performanceKPIs on most contracts over £5 million, with performance against them published

The Central Digital Platform and Find a Tender's bigger role

Under the 2015 Regulations, Find a Tender — which replaced the EU's Official Journal for UK buyers from 1 January 2021 — carried above-threshold adverts and award notices, and Contracts Finder carried English contracts, including lower-value ones. Under the Act, Find a Tender is the public face of the Central Digital Platform: the government system where buyers publish the notices the Act requires and where suppliers register.

To bid in an above-threshold procurement under the Act, you register your organisation on the platform, signing in with GOV.UK One Login, and record your core supplier information: basic details about the business, its economic and financial standing, its connected persons (such as directors and people with significant control), and declarations against the exclusion grounds. You keep it up to date and share it with each buyer you bid to, by the end of the tendering period at the latest, so you are not re-entering the same company details every time; the buyer's own questions then cover what is specific to the procurement. If you win a below-threshold contract that needs a contract details notice, you must be registered before the buyer publishes it.

Find a Tender now carries a notice at each stage of a contract's life, so it shows much more than open tenders:

NoticePublishedWhat it tells you
Pipeline noticeWithin 56 days of the start of its financial year, if it expects to spend more than £100 million (private utilities and Northern Ireland's devolved bodies are exempt)The contracts over £2 million it expects to bring to market in the next 18 months
Preliminary market engagement noticeBefore the tender noticeThat the buyer is engaging, or has engaged, suppliers about a requirement
Planned procurement noticeOptional, ahead of a tender noticeThat a tender is coming; one published 40 days to 12 months before the tender notice lets the buyer set a shorter tendering period
Tender noticeWhen the procurement startsThe requirement, the procedure, the conditions of participation and the award criteria, with the tender documents
Transparency noticeBefore a direct awardWhich supplier the buyer intends to award to without competition, and the justification
Contract award noticeOnce the buyer has chosen, before it enters into the contractWho it intends to award to; publishing it starts the standstill period
Contract details noticeAfter the contract is entered intoThe contract's key details; for contracts over £5 million the buyer also publishes a copy of the contract, unless it is a devolved body in Wales or Northern Ireland or a private utility
Contract performance noticeDuring the contractPerformance against the KPIs on contracts over £5 million, and any serious breach or poor performance not put right
Contract change noticeBefore most changes to a contractWhat is changing in the contract
Contract termination noticeWhen a contract endsThat the contract is over, which can signal a re-tender
Procurement termination noticeWhen the buyer abandons a procurementThat the opportunity will not go ahead

Contracts Finder has not gone away: procurements started under the old rules still publish there until 1 May 2027, when their notices move to the central digital platform, and Scotland, Wales and Northern Ireland keep their own portals. Our guide to Find a Tender vs Contracts Finder explains which carries what. PSIP aggregates all five official portals — Find a Tender, Contracts Finder, Public Contracts Scotland, Sell2Wales and eTendersNI — into one search, reading Find a Tender and Contracts Finder hourly through the working day and the other three daily.

The competitive flexible procedure: a process the buyer designs

Under the 2015 Regulations a buyer chose from a menu — open, restricted, competitive procedure with negotiation, competitive dialogue or innovation partnership — each with its own conditions for use. The Act keeps a single-stage open procedure, where any supplier can submit a tender, and replaces the rest with the competitive flexible procedure: any other competitive process the buyer considers appropriate for the contract.

The procedure must be proportionate to the nature, complexity and cost of the contract, and the tender notice and tender documents must tell you how it will run. Stages a buyer can build in include:

  • A first stage that tests conditions of participation and shortlists suppliers
  • Initial tenders, followed by negotiation or dialogue
  • Presentations, demonstrations or site visits
  • A limit on how many suppliers go forward at each stage
  • Final tenders, assessed against the published award criteria

The contract goes to the most advantageous tender, judged against the award criteria and their relative importance as published. That replaces the old most economically advantageous tender test: you win on the buyer's criteria as weighted, so price decides only as far as its weighting allows. If the procedure provides for it, the buyer can refine the award criteria between stages, so re-read them at each stage. Where social value is one of the criteria, it is scored like any other — see our guide to social value in public sector procurement.

In practice: before you commit a bid team, map every stage, what is assessed at each and the dates. A competitive flexible procedure with negotiation rounds can need senior people over a longer period than an open tender of the same value.

Open frameworks and dynamic markets

Frameworks still work much as they did. A buyer appoints suppliers to a framework, then awards call-off contracts under it, directly or by a further competition among the framework's suppliers, as the framework's terms allow. A standard framework is still normally limited to four years, and once it is awarded, suppliers outside it wait for the replacement.

The Act adds the open framework: a scheme of successive frameworks on substantially the same terms, which must reopen to new suppliers at least once in its first three years and can run for up to eight years in total. An open framework first awarded in 2025 has to reopen before the end of 2028, so watch during 2027 and 2028 for reopenings of open frameworks you missed.

Dynamic purchasing systems are replaced by dynamic markets. A supplier that meets a dynamic market's conditions of membership can apply to join at any time while it is open, and contracts under it are competed among its members.

Our guides to public sector frameworks and Crown Commercial Service frameworks cover how to get onto them and how call-offs work.

30-day payment terms, down the supply chain

Public contracts awarded under the Act, other than concession contracts and contracts awarded by private utilities or schools, are treated as including a term that the buyer pays a valid, undisputed invoice within 30 days of receiving it. The Act implies the same 30-day term into the sub-contracts used to deliver those contracts, so it covers a prime contractor paying its subcontractors and runs on down the supply chain.

The principle is not new: regulation 113 of the 2015 Regulations required 30-day payment terms in public contracts and required them to be passed down to sub-contracts. The difference is that the Act implies the term by law, so it applies even where nobody wrote it into the sub-contract. Most buyers must also publish a payments compliance notice every six months on how promptly they pay; Northern Ireland's devolved bodies and private utilities are exempt.

What to do about it

  • Prime contractors: check that your sub-contract templates and your payment runs can pay valid invoices within 30 days.
  • Subcontractors: invoice accurately and on time, because the 30 days run from receipt of a valid, undisputed invoice.
  • Everyone: plan cash flow for paying your own supply chain within 30 days, and price large contracts with that in mind.

Exclusions and the debarment list

The Act sets out mandatory exclusion grounds, such as fraud, bribery and corruption, money laundering, terrorism, and slavery or human trafficking offences, and discretionary ones, such as serious breach of contract or poor performance, insolvency, professional misconduct and competition law infringements. A buyer must disregard a tender from an excluded supplier and may disregard one from an excludable supplier.

The grounds are checked against your organisation and its connected persons, such as directors and people with significant control. Buyers also check associated persons whose capacity you rely on to meet conditions of participation, and can ask about the subcontractors you intend to use. For every ground, the buyer must consider whether the circumstances are continuing or likely to occur again, which is where evidence of putting things right counts: compensation paid, changes of staff or management, new training or monitoring, and the time that has passed.

The debarment list is new. A minister of the Crown keeps a central list of suppliers found, after an investigation, to be excluded or excludable. A supplier listed on a mandatory ground is an excluded supplier in every procurement under the Act for the period of its entry (an entry on national security grounds covers only the contracts it describes); one listed on a discretionary ground can be excluded by any buyer. A listed supplier can apply for removal if its circumstances change, and can appeal the decision in court. The list is published, so check your key subcontractors and partners against it, and answer exclusion questions fully and accurately.

Assessment summaries and the standstill period

Under the 2015 Regulations, bidders received a standstill letter explaining the award decision, with the relative advantages of the winning tender. Under the Act, the buyer must give an assessment summary to every supplier that submitted an assessed tender — the winner included — before it publishes the contract award notice.

The summary explains how your tender was assessed against the award criteria and how the most advantageous tender was assessed, so you can see where the difference lay. Publishing the contract award notice then starts the standstill period: for most contracts, eight working days during which the buyer cannot enter into the contract.

Read your summary the day it arrives. If something looks wrong — a criterion that was not published, a score that does not match its commentary, an arithmetic error — raise it with the buyer at once, and take legal advice quickly if you may challenge, because the time limits are short. Our guide to procurement debriefs covers how to turn feedback into a stronger next bid.

Pipeline notices: the next 18 months, in advance

A contracting authority that expects to spend more than £100 million on contracts in a financial year must publish a pipeline notice within 56 days of the start of that year; private utilities and Northern Ireland's devolved bodies are exempt. It lists the contracts worth more than £2 million that the authority expects to tender, or to award directly, in the 18 months from the start of the year.

For bodies whose financial year starts on 1 April, that puts the 2027–28 notices on Find a Tender by late May 2027, covering contracts expected to come to market up to 30 September 2028. A pipeline notice is a statement of intent, not a commitment: dates slip and plans change. And no smaller buyer, and no contract of £2 million or less, has to appear in one, so pipeline notices add to tender alerts rather than replacing them.

1

Find your buyers' notices

Each spring, search Find a Tender for the pipeline notices of the authorities you sell to, and note the contracts in your field.

2

Build a bid calendar

Put each relevant contract in your calendar with its expected tender date. Earlier award notices for the same requirement tell you who the incumbent is and when the current contract ends.

3

Take part in engagement

Watch for preliminary market engagement notices from the same buyers and take part: it is your chance to raise practical points before the specification is fixed.

4

Prepare before the tender notice

Line up case studies, partners and accreditations early. A buyer that published a planned procurement notice 40 days to 12 months before the tender notice can cut the tendering period to as little as 10 days.

5

Let alerts catch the tender itself

Pipeline dates are indicative, so keep tender alerts running for your subject and let them tell you when the tender notice is published.

What to do differently when bidding in 2027

The practical changes, roughly in the order you meet them in a bid:

1

Register before you need to

Register your organisation on the Central Digital Platform and complete your core supplier information now, not in the week a tender closes. Update it whenever your directors, ownership or accounts change.

2

Check which rules apply

A procurement started before 24 February 2025, or a call-off from a framework let under the old rules, runs under the 2015 Regulations. Know which regime you are in before you plan: the procedure, the feedback and the standstill all differ.

3

Read the procedure before the specification

In a competitive flexible procedure the tender documents set the stages, what is assessed at each, and whether the buyer will shortlist or negotiate. Plan people and dates around every stage, not just the final deadline.

4

Answer the criteria as weighted

The contract goes to the most advantageous tender against the buyer's published criteria. If social value carries a weighting, answer it with evidence and specific commitments, as you would any scored question.

5

Prepare for exclusion questions beyond your own company

Have accurate information ready on your connected persons, and on any associated persons and subcontractors you rely on. If a ground could apply, prepare the evidence of what you have done to put it right.

6

Bid for the lots you can deliver

Buyers must consider dividing a contract into lots and give reasons if they do not. Lots let a smaller supplier bid for the part it does best.

7

Fix your supply-chain payment terms

If you win, the sub-contracts you use to deliver the contract carry 30-day payment terms by law, unless it is a concession contract or was awarded by a private utility or a school. Check your templates and payment runs before you bid.

8

Treat the assessment summary as a deadline

The standstill is eight working days for most contracts. Read the summary the day it arrives, query anything that looks wrong, and take advice quickly if you may challenge.

9

Plan for published performance

On most contracts over £5 million the buyer sets KPIs and publishes your performance against them at least once a year. Report from day one: good published performance is evidence for your next bid, and serious failures can count against you as a discretionary exclusion ground.

10

Revisit frameworks you missed

Open frameworks reopen to new suppliers, and dynamic markets take new members while they are open. Note the reopening dates for the frameworks in your field.

11

Watch all five portals

Find a Tender carries the Act's notices, but Contracts Finder (until 1 May 2027), Public Contracts Scotland, Sell2Wales and eTendersNI still carry opportunities of their own.

PSIP's tender alerts apply keyword and CPV code filters across all five official portals at once, and run daily, 4-hourly or hourly, depending on your plan.

Frequently asked questions

What is the Procurement Act 2023?

The Procurement Act 2023 is the law that sets how public bodies and utilities in England, Wales and Northern Ireland buy goods, services and works. It came into force on 24 February 2025 and replaced the Public Contracts Regulations 2015, the Utilities Contracts Regulations 2016, the Concession Contracts Regulations 2016 and the Defence and Security Public Contracts Regulations 2011 with one regime.

When did the Procurement Act 2023 come into force?

It received Royal Assent on 26 October 2023 and came into force on 24 February 2025. A procurement started before 24 February 2025 finishes under the old regulations, and call-offs from frameworks let under the old regulations stay under them too.

Does the Procurement Act 2023 apply in Scotland?

Generally not to Scotland's devolved public bodies, though it can apply, for example when they buy jointly with a body the Act covers or through a framework set up by one. The Scottish Government, Scottish councils, NHS Scotland and other devolved bodies keep their own regime under the Procurement Reform (Scotland) Act 2014 and the Public Contracts (Scotland) Regulations 2015, and advertise on Public Contracts Scotland. UK government bodies buying in Scotland can fall under the Act.

What is the competitive flexible procedure?

It is one of the two competitive tendering procedures under the Act; the other is the open procedure. The buyer designs it to suit the contract, with stages such as shortlisting, negotiation, dialogue, demonstrations and more than one round of tenders, as long as the procedure is proportionate and is described in the tender notice and tender documents. It replaces the restricted procedure, the competitive procedure with negotiation, competitive dialogue and the innovation partnership.

What is the Central Digital Platform?

The Central Digital Platform is the government's online system for procurement under the Act, and Find a Tender is its public face. Buyers publish their notices on it. Suppliers register on it, record their core supplier information once and share it with each buyer they bid to, instead of re-entering the same company details in every bid.

What is an assessment summary?

An assessment summary is the explanation a buyer must give every supplier that submitted an assessed tender, before it publishes the contract award notice. It sets out how your tender was assessed against the award criteria and how the most advantageous tender was assessed. It replaces the standstill letter used under the 2015 Regulations.

How long is the standstill period under the Procurement Act 2023?

For most contracts it is eight working days, starting on the day the buyer publishes the contract award notice, and the buyer cannot enter into the contract until it ends. Under the 2015 Regulations it was 10 calendar days when the award decision was sent electronically.

Who has to publish a pipeline notice?

A contracting authority that expects to spend more than £100 million on contracts in the coming financial year, unless it is a private utility or one of Northern Ireland's devolved bodies. Within 56 days of the start of that year it must publish a pipeline notice listing the contracts worth more than £2 million that it expects to tender, or to award directly, in the 18 months from the start of the year. A pipeline notice is a statement of intent, not a commitment.

Do 30-day payment terms apply to subcontractors?

Yes, for most contracts. The Act treats public contracts as including a term that a valid, undisputed invoice is paid within 30 days, and implies the same term into the sub-contracts used to deliver them, so it flows down the supply chain. Concession contracts and contracts awarded by private utilities or schools are not covered. The 2015 Regulations already required 30-day terms to be passed down by contract; under the Act the term is implied by law.

What is the debarment list?

The debarment list is a central list, kept by a minister of the Crown, of suppliers found after an investigation to be excluded or excludable. A supplier listed on a mandatory ground is excluded from procurements under the Act for the period of its entry (an entry on national security grounds covers only the contracts it describes); one listed on a discretionary ground can be excluded by any buyer. A listed supplier can apply to be removed and can appeal the decision.

What is an open framework?

An open framework is a scheme of successive frameworks on substantially the same terms that reopens to new suppliers. It must reopen at least once in its first three years and can last up to eight years in total. A standard framework is still normally limited to four years.

Where are Procurement Act notices published?

On the Central Digital Platform, which you search through Find a Tender. Contracts Finder still carries notices for procurements started under the old rules (until 1 May 2027, when those move to the platform too), and Public Contracts Scotland, Sell2Wales and eTendersNI still carry their own opportunities, so Find a Tender alone does not show everything.

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