Bid writing is the process of drafting and submitting a formal response to a public sector procurement opportunity. In the UK, that typically means responding to a selection questionnaire, an invitation to tender (ITT), or both, presenting your organisation's capability, approach and price in a structured format the buyer scores against published criteria. The goal is not simply to describe what you do but to demonstrate, with evidence, that you are the most suitable supplier for that specific contract.
A modern UK tender process under the Procurement Act 2023 typically breaks into two stages, though the exact structure depends on the procedure the buyer has chosen.
The selection questionnaire (SQ) replaces the older pre-qualification questionnaire (PQQ) following PPN 03/23. It assesses whether your business meets the minimum threshold to be considered: financial standing, insurance, relevant experience and any mandatory or discretionary exclusion grounds. Buyers publishing opportunities on Find a Tender (for contracts above threshold) or Contracts Finder (for lower-value work) attach or link the SQ. Getting through this stage is a prerequisite, not a win.
Once shortlisted, you receive the ITT. This is where bid writing really matters. You will typically respond to:
For framework agreements and dynamic purchasing systems (DPS), there is often an additional step: a mini-competition or call-off process where framework members submit tailored bids for specific requirements. The same writing disciplines apply, but at speed.
CPV codes are used by buyers to classify contracts by category. Knowing the CPV codes relevant to your work helps you monitor the right opportunities before they reach ITT stage.
Most procurement teams evaluate bids using the most economically advantageous tender (MEAT) principle, balancing quality and price. Here is what separates winning responses from the rest.
This sounds obvious. It is the most common failure. Buyers write scored questions for a reason: each one maps to an evaluation criterion. If the question asks how you will manage subcontractors, do not write three paragraphs about your company history. Answer the question, then support it with evidence.
If the marking scheme is published (and under the Procurement Act 2023, transparency requirements make this more common), use it as a checklist. Evaluators cannot award marks for content that is not there.
Assertions without evidence are ignored. Every capability claim should be backed by a case study, a statistic, a named project or a quantified outcome. "We have extensive experience in FM services" is worth nothing. "We delivered a five-year FM contract for a named client, reducing reactive maintenance callouts by 31%" is scoreable.
A win theme is a recurring message that runs through your whole response: the one or two reasons this buyer should choose you over everyone else. It might be sector specialisation, a proprietary method, a local supply chain, or a particularly strong social value offer. Weave it into every method statement rather than stating it once in your cover letter.
Quality-weighted procurements (say 70/30 quality to price) still require competitive pricing. A perfect quality score can be undermined by pricing significantly above the market. Understand the buyer's budget estimate if published, benchmark your rates and price to win, not simply to cover costs.
Many SMEs write their own bids, particularly for lower-value or repeat contract types where you know the buyer and the subject matter well. For higher-value, more complex or unfamiliar procurements, a professional bid writer can materially improve your win rate.
Bid writer day rates in the UK typically range from around £350 to £800 per day, depending on sector specialisation and seniority. For a full ITT response on a mid-sized contract, expect between three and ten days of work, so a budget of £1,500 to £6,000 is realistic for professional support.
Some bid writers work on a percentage of contract value, often between 1% and 3%, which aligns their incentive with your outcome but can become expensive on large contracts. Retainer arrangements suit organisations bidding regularly (say, three to five bids per quarter) and typically cost £2,000 to £5,000 per month for a part-time resource.
If the contract value is low relative to the cost of external support, if you have in-house knowledge no writer can replicate, or if you are building internal capability, writing in-house makes sense. Many experienced bid managers develop strong win rates over time by maintaining a library of reusable case studies, CVs and method statement templates that can be quickly tailored.
Bring in external support when the contract is strategically important, when you are bidding in an unfamiliar sector, when the quality weighting is high, or when internal bandwidth simply is not there. A good bid writer asks the same questions an evaluator would and forces you to produce evidence you may not have thought to include.
The best bid is one you had time to prepare properly. Tender response windows are often four to six weeks, and for complex procurements that can feel very short once you factor in site visits, internal sign-off and pricing.
Finding opportunities early gives you time to build relationships with the buyer before the formal process begins (where the rules permit), to develop relevant case studies, to line up subcontractors or partners, and to understand the specification before the clock starts.
Public opportunities above threshold appear on Find a Tender. Lower-value work is published on Contracts Finder. But monitoring dozens of buyer portals, framework call-offs and DPS mini-competitions manually is time-consuming. Tools like TenderSignal aggregate notices from across those sources and send you a daily digest of matches based on your categories, region and contract value, so you see relevant opportunities as soon as they are published rather than stumbling across them close to the deadline.
The earlier you spot a tender, the more time you have to write a strong response. That is, in most cases, the single most practical thing an SME can do to improve its bid win rate.
The two terms are used interchangeably in the UK. Both refer to the process of preparing a formal written response to a public or private sector procurement opportunity. 'Tender writing' is slightly more common in public sector contexts, while 'bid writing' is used more broadly across both public and private procurement.
Professional bid writers in the UK typically charge day rates of £350 to £800, depending on their experience and sector specialisation. A full ITT response usually requires three to ten days of work, so total costs commonly fall between £1,500 and £6,000. Some writers charge a percentage of contract value (typically 1% to 3%) or work on a monthly retainer for organisations bidding regularly.
A selection questionnaire (SQ) is the standard pre-qualification document used in UK public procurement following PPN 03/23, which replaced the older pre-qualification questionnaire (PQQ). Both serve the same purpose: assessing whether a supplier meets minimum financial, technical and legal thresholds before being invited to tender. The SQ format is more standardised across central government and many local authorities.
Social value refers to the wider community, environmental or economic benefits a supplier commits to delivering as part of a public contract. The government requires central departments to apply a minimum 10% weighting to social value in evaluations. Buyers typically ask suppliers to describe specific, measurable outcomes tied to themes such as jobs and skills, net zero, or supporting local businesses, rather than accept vague pledges.
Yes. Public procurement rules require buyers to consider SME accessibility, and many frameworks and DPS arrangements are structured to allow smaller suppliers to compete for call-off contracts. The key advantages an SME can offer are sector specialism, local knowledge, flexibility and direct senior involvement, all of which can outweigh a larger supplier's scale when evidenced well in a bid response.
UK public contracts above the relevant threshold must be published on Find a Tender, while lower-value opportunities appear on Contracts Finder. Many buying authorities also publish on their own portals or within framework and DPS arrangements. Monitoring all these sources manually takes significant time; aggregation tools that filter by CPV code, region and contract value can help you spot relevant opportunities quickly and give you more time to write a strong response.