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Eight working days: UK procurement standstill checklist

September 28, 2026
Eight working days: UK procurement standstill checklist

The standstill period under UK procurement law is a minimum of eight working days, beginning on the day the contract award notice is published. During this window, contracting authorities must not enter into the contract. Suppliers can review the award decision and, where necessary, challenge it before the deal is signed.

TL;DR:

  • The eight working-day standstill period begins when the contract award notice is published on the central digital platform, not when bidders receive a letter, with assessment summaries required before publication.
  • Publication timing, especially late on Fridays or before bank holidays, can compress the effective standstill, so teams often build in extra buffer days to avoid disputes.
  • Exemptions from the standstill include contracts under extreme urgency, public safety cases, certain utilities, and specific light-touch procurements, which may allow voluntary standstills if appropriate.
  • During the standstill, authorities must not sign contracts; issuing early exposes them to legal risks, and proper record-keeping of publication timestamps and bidder queries is essential for compliance.
  • Using dedicated tools and templates, along with initial legal advice for complex cases, helps procurement teams avoid calculation mistakes and procedural errors in managing the standstill process.
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Table of Contents

What starts the standstill: contract award notices and assessment summaries

The standstill clock starts when the contract award notice is published on the central digital platform, not when a letter lands in a bidder's inbox, marking the start of the mandatory standstill period. This is a structural change from the old regime, where authorities sent individual "standstill letters" to each bidder and the clock started from delivery, often creating disputes about when notice was actually received.

Under the current regime, the sequencing matters as much as the trigger itself. GOV.UK guidance confirms that assessment summaries must be provided before the contract award notice is published, not alongside it or afterwards. Getting this order wrong risks invalidating the standstill entirely.

The practical differences from the legacy process are worth setting out clearly:

  • Publication on the central digital platform, not individual correspondence, marks day one of the standstill.
  • Assessment summaries must reach affected bidders before the notice goes live, reversing the old sequence of award first, explanation later.
  • There is no discretion to publish first and follow up with reasons: the summary has to exist and be sent before the public trigger fires.

Procurement teams used to drafting standstill letters as a courtesy step now need to treat the assessment summary as a mandatory precondition, not a supporting document.

Counting eight working days: calendar rules, bank holidays and examples

Illustration of eight working days counted

Working days exclude weekends and bank holidays across all four UK nations, which means the practical length of a standstill period shifts depending on where in the calendar it falls. A period spanning a bank holiday in Scotland but not England, for instance, needs checking against the correct regional calendar for the contract in question.

Three worked examples show how this plays out:

  1. A notice published on a Monday with no bank holidays in the following fortnight completes its eight working days by the second Wednesday, since Saturdays and Sundays do not count.
  2. A notice published on a Thursday before a bank holiday Monday effectively loses that Monday from the count, pushing the final day later than a same-week calculation would suggest.
  3. A notice published late on a Friday afternoon risks ambiguity about whether that day counts as day one, since little practical time remains for a bidder to act on it.

That third scenario is the one that catches teams out most often. Publishing late in the day, particularly on a Friday, compresses the effective window even where the formal count is correct. Many procurement teams now build in an extra working day as a buffer, or avoid late-afternoon publication altogether, precisely to avoid arguments about when the clock genuinely started.

Who must observe it and common exemptions under section 51(3)

Section 51 of the Procurement Act 2023 sets the mandatory standstill period at eight working days and lists the circumstances in which it does not apply. Most above-threshold contracts fall within scope, but the exemptions matter for teams working on time-pressured or specialist procurements.

Common exemptions and related provisions include:

  • Contracts awarded under extreme urgency, where the delay a standstill would cause is incompatible with the situation.
  • Cases involving protection of life, where public safety considerations override the standard notice period.
  • Certain utilities contracts and call-off arrangements under existing frameworks, which sit outside the mandatory standstill requirement.
  • Light-touch procurements for particular services, which follow a separate set of rules.

Where an exemption applies, authorities can choose to run a voluntary standstill instead of proceeding straight to contract signature. This is often sensible even when not legally required, since it gives bidders a final opportunity to raise concerns and reduces the chance of a challenge after the contract is signed. A voluntary standstill should still meet a minimum length comparable to the mandatory version to carry practical weight with reviewing courts.

The core legal effect is straightforward: the authority may not enter into the contract while the standstill period is running. Signing early, even by mistake, undermines the entire purpose of the notice and exposes the authority to legal risk.

Where a disappointed bidder issues proceedings during the standstill period, the position becomes more complex. Practitioner commentary from Muckle LLP notes that the Procurement Act 2023 has altered when automatic suspension applies compared with the previous regime, and has raised open questions about how an extended standstill interacts with the suspension mechanism. Automatic suspension effectively freezes the authority from signing the contract until the court rules on whether to lift it, so timing a challenge correctly can materially affect a supplier's leverage.

For contracting authorities, the practical implications point towards caution:

  • Do not treat the standstill as a formality to be rushed through before finance or delivery deadlines.
  • Keep a clear record of the exact publication timestamp, since this underpins any dispute about whether proceedings were issued within the period.
  • Brief legal or procurement leads immediately if a query or pre-action letter arrives during the standstill, rather than waiting for the period to expire.

Pro Tip: Treat any bidder query received during standstill as a potential precursor to litigation and log it with a timestamp, even if it reads as routine.

Publication content: assessment summaries, what to include and how to set the end date

An assessment summary earns its purpose only if it gives an unsuccessful bidder enough information to judge whether the decision is sound. That means concise reasons for the outcome, the scoring rationale against the published criteria, and a named contact point for follow-up questions.

The contract award notice itself needs to state the standstill end date explicitly, rather than leaving bidders to calculate it from the publication date. This removes ambiguity about exactly when the authority becomes free to sign.

Minimum content for a compliant assessment summary should cover:

  • The winning bidder's score against each award criterion, presented in a way that lets the recipient compare their own result.
  • A brief explanation of the characteristics and relative advantages of the winning submission, without disclosing commercially sensitive detail unnecessarily.
  • A named contact and method for raising questions before the standstill period closes.
  • The explicit standstill end date, stated in the notice itself rather than implied.

Where circumstances change after publication, such as an error being spotted or a query prompting a longer review, Procurement Pathway guidance and GOV.UK's own commentary both point towards republishing the contract award notice with a corrected end date rather than quietly extending it. Suppliers should be notified directly of any change, not left to notice a revised date on the platform by chance. This dual step, republication plus direct notification, protects the authority's position if the extension is later challenged and gives every bidder the same clarity about when the period for issuing proceedings actually ends.

Operational checklist for contracting authorities to manage standstill risk

Getting the standstill right is largely a matter of sequencing and record-keeping rather than legal complexity. A short checklist run consistently across procurements reduces the risk of an avoidable error derailing an otherwise sound award decision.

  1. Before publication, confirm the assessment summary is complete, accurate and has actually reached every affected bidder.
  2. Choose a publication time early in the working day, avoiding Friday afternoons or the day before a bank holiday.
  3. Check the bank holiday calendars for England, Scotland, Wales and Northern Ireland against the contract's delivery location before fixing the end date.
  4. At the point of publication, record the exact timestamp and state the calculated final standstill day in the notice itself.
  5. Notify unsuccessful bidders directly, rather than relying on them to check the central digital platform unprompted.
  6. Throughout the standstill period, log every bidder query with a date and time, and document any decision to extend the period along with the reasoning behind it.
  7. Keep a single record of all communications and decisions taken during the standstill, so the sequence of events is easy to reconstruct if challenged later.

Pro Tip: Assign one named owner for each live standstill period so queries and extension decisions do not fall between team members during a busy procurement cycle.

Teams that treat this as a routine administrative task, rather than a one-off legal exercise, tend to avoid the errors that lead to challenges.

Practical steps for suppliers during the standstill

For suppliers, the standstill period is a limited but genuine opportunity to scrutinise an award decision before it becomes irreversible. The first task is checking that the assessment summary is actually complete: does it explain the scoring against each criterion, and does it state a clear standstill end date.

Once the summary is reviewed, suppliers need to decide quickly how to respond:

  • Request clarification directly from the named contact if the reasoning in the summary is unclear or appears inconsistent with the published criteria.
  • Ask whether an extension is appropriate if a genuine query remains unresolved close to the stated end date.
  • Begin gathering evidence, such as the tender submission, scoring feedback and correspondence, in parallel with any clarification request, in case litigation becomes necessary.

Timing matters more than almost anything else here. Issuing proceedings while the standstill is still running is what triggers the automatic suspension that prevents the contract being signed, so a supplier who waits until the period has closed loses that protection entirely.

Tools, calculators and templates to avoid calculation errors

Manual date counting is where most standstill errors creep in, particularly around bank holidays that differ across the UK's nations. A dedicated standstill calculator removes much of that risk by applying the eight-working-day rule automatically against the correct regional calendar.

Useful resources for procurement teams include:

  • A standstill calculator updated for the Procurement Act 2023, for checking the exact end date against a chosen publication day.
  • Standard notice and assessment summary templates, to keep required fields consistent across procurements.
  • Direct reference to the official bank holiday calendars for England and Wales, Scotland, and Northern Ireland when a contract spans more than one nation.

These tools are aids, not a substitute for legal judgement. Where a procurement is unusually complex, involves an exemption under section 51(3), or a challenge looks likely, specialist procurement law advice remains the safer route before publication.

BidBlock perspective: embedding the standstill into tender workflows

Publication-triggered standstill periods reward teams that build the assessment summary requirement into their workflow rather than treating it as a document to draft under time pressure. A checklist that blocks publication until the summary exists, and until it has actually reached bidders, closes the gap where most errors happen.

Timestamping and automated notifications remove the guesswork around when a standstill actually started and whether every bidder was told. An evidence library of past submissions and social value case studies also helps here: reusable, well-organised material makes it easier to produce a complete, accurate assessment summary quickly, rather than assembling reasoning from scratch against the clock.

— Syed

How BidBlock can help teams comply with standstill obligations

Standstill compliance often fails on process, not law: a late assessment summary, an unlogged timestamp, a bidder who was not told directly. BidBlock's AI-powered workspace is built to close those gaps for organisations managing public sector tenders.

Bidblock

Relevant features for standstill workflows include:

  • An evidence library that draws on past bid responses, so assessment summaries can be produced accurately and quickly rather than written under pressure.
  • AI-assisted drafting and review, which supports consistent, well-reasoned scoring rationale across notices.
  • Pipeline tracking and notification tools, which help teams keep a clear record of publication timing and bidder communications.

BidBlock's plans range from a Free tier through Standard at £29 per month, Pro at £79 per month, to Max at £249 per month, each suited to different volumes of tenders and evidence. Visit the BidBlock plans page to see which tier fits your team's standstill workload.

Sources

FAQ

Is a standstill period mandatory?

Yes, for contracts caught by section 51 of the Procurement Act 2023, the standstill period is mandatory unless a specific exemption applies. Where an exemption does apply, authorities can still choose to run a voluntary standstill of the same minimum length.

What is the minimum standstill period for a transparency notice in the Procurement Act 2026?

The minimum standstill period is eight working days, starting on the day the contract award notice is published. Weekends and bank holidays across the relevant UK nation are excluded from that count.

What are the latest updates on UK procurement law?

The Procurement Act 2023 replaced the previous calendar-day standstill with an eight-working-day period triggered by publication of the contract award notice, rather than by individual standstill letters. Transitional regulations also clarify which procurements fall under the old regime versus the new one, so teams should check commencement dates for contracts already underway.

Does the UK still use Ojeu?

No, the UK moved away from the OJEU (Official Journal of the European Union) notice system following its departure from the EU, and procurement is now governed domestically under the Procurement Act 2023. Contract award notices are published on the UK's own central digital platform rather than through OJEU.