What is a PQQ? Pre-Qualification Questionnaires Explained
A bid has landed but you have to complete the PQQ first and you're not quite sure what to do with it, we can help you with that. PQQs can look very confusing and can catch out good businesses long before the tender does. This is not because they can't do the work, but because they don't always understand how the pre-qualification questionnaire should be answered.
So let us walk you through what a PQQ actually is, what it's checking for, and how to get it right first time.
What is a PQQ?
A PQQ stands for pre-qualification questionnaire. It is a structured set of questions a buyer sends out and is the first stage of the formal tender process. It's basically a filter. Before a public body or large organisation invites suppliers to submit a full, detailed bid, they want to know that everyone they're inviting is actually capable of doing the job, financially stable, properly insured, and safe to work with. The PQQ is how they check that, in bulk, before committing the time to read anyone's full bid submission.
Think of it as the audition before the audition. You don't win the contract at PQQ stage but you can be disqualified at this stage if you get it wrong, meaning your full submission will not be evaluated.
A quick note on terminology: PQQ vs SQ vs PSQ
If you've worked in public sector procurement before, you may already have noticed the label keeps changing. The PQQ was formally replaced by the Selection Questionnaire (SQ) back in 2016, and since the Procurement Act 2023 came into force, English, Welsh and Northern Irish public bodies increasingly use the term Procurement Specific Questionnaire (PSQ) instead, designed to let suppliers reuse qualifying answers across multiple procurements and cut down on repetitive form-filling. Scotland uses its own equivalent, the Single Procurement Document (SPD).
In practice, "PQQ" has stuck as the everyday term almost everyone still uses, especially outside the strictest public sector processes, in private sector tendering, framework applications, and supply chain accreditation (construction being the clearest example). So, whether the document in front of you is technically labelled PQQ, SQ, or PSQ, the substance and the advice below apply the same way.
What does a PQQ actually ask for?
The specifics vary by buyer and sector, but most PQQs cover a basic similar core (this list is not exclusive):
Company details and legal status: who you are, how you're structured, and confirmation you're legally allowed to trade and bid.
Financial standing: turnover, accounts, sometimes a minimum threshold you need to clear, used to check you won't go under mid-contract.
Insurance: public liability, employer's liability, professional indemnity, at the levels the contract requires.
Health & safety policy and record: including, in higher-risk sectors, accident history and accreditation.
Quality assurance and environmental management: often evidenced through certifications like ISO 9001 or ISO 14001, or sector-specific equivalents.
Sector-specific accreditations: beyond general quality and environmental certifications, buyers often want proof of schemes relevant to your specific industry, such as Constructionline, CHAS, SafeContractor, or Cyber Essentials, depending on what the contract calls for.
Relevant experience and references: examples of similar work you've delivered, usually with two or three client contacts who can vouch for your business.
In construction specifically, a lot of this is standardised through Constructionline or the Common Assessment Standard (CAS), which replaced the older PAS 91 framework, meaning you can submit your core PQQ data once and reuse it across multiple opportunities rather than starting from scratch each time.
More broadly across public sector procurement, the same submit-once-reuse principle now exists through the Central Digital Platform , part of the Procurement Act 2023 reforms, live since February 2025 via Find a Tender. Suppliers register their core business, financial and qualification information once, and that data can then be pulled into multiple bids rather than resubmitted from scratch each time. Registration isn't mandatory until you actually want to bid on a contract, but it's well worth doing early if you're bidding regularly.
How a PQQ differs from the full tender (ITT)
A PQQ is about eligibility, not persuasion. It's largely yes/no, evidence, and figures, can you legally trade, are you insured, can you prove you have done this kind of work before and will businesses vouch for you. The Invitation to Tender (ITT) that follows is where you actually make the case for why you, specifically, should win. At this stage you provide method statements, pricing, added value, the narrative work most people think of as "bid writing."
All PQQs are marked pass/fail rather than scored on a sliding scale. Buyers use them to shortlist, then score the ITTs that follow to actually select a winner. That pass/fail nature is exactly why PQQs deserve more care than businesses often give them: get one question wrong, and it doesn't matter how strong the rest of your answers are, or how well qualified you actually are to do the work. Miss the bar at PQQ stage and you won’t be invited to tender. If your bid is submitted at the same time as your PQQ and you miss the bar, your bid won’t even get read. Instant disqualification.
Where businesses lose PQQs unnecessarily
The mistakes here are rarely about capability, they're about how the questionnaire is answered:
Evidence gaps: claiming a certification or a policy exists without attaching the document that proves it.
Outdated paperwork: an insurance certificate or accreditation that's technically expired by the time it's checked.
Not checking you actually meet the financial standing requirement before you submit, uploading your accounts regardless, rather than checking first whether they clear the threshold the buyer has set.
Using contract examples that aren't genuinely similar to the one you're bidding for. Buyers are looking for relevant experience, not just experience, and a mismatched example can undermine an otherwise strong answer.
Not checking with your named referees first. It's exactly like a job reference: you confirm with someone before you put their name down, not after. If a buyer can't reach them, or reaches them and they won’t vouch for you, that alone can disqualify you.
Misreading the question. PQQs are often worded more ambiguously than they need to be, so make sure you understand what is being asked before you answer.
Getting through the PQQ
The good news is that a PQQ, unlike a full tender, is largely about having the right material ready and presenting it clearly and consistently which makes it very fixable. Once your core financial, insurance, H&S and experience evidence is assembled properly, most of that work can be reused (and kept current) for the next one. Check out the resources tab and download our free PQQ Cheat Sheet, a handy tool to help you keep all your PQQ information in one central place.
If you'd rather not lose a contract before you've even had the chance to pitch for it, we help businesses put together PQQ responses that clear this first hurdle properly. Get in touch and we'll talk through what your next one needs.