Imagine you are a supplier working in the public procurement sector. You are searching for an opportunity, and you find a promising tender. Based on your estimates, there is sufficient time to prepare a bid and submit it.
But, after a while, you find yourself in the situation where you have to spend the last 48 hours of the bid window in a state of panic because some mandatory documents are missing, and you have had to copy-paste content from previous bids just so you can hit “Submit” at 11:58 PM.
It’s not uncommon for suppliers to be excluded from public procurement tenders even before their proposals can be evaluated. Sadly, this often has little to do with a weak offer and mainly happens because the submission deadline was missed.
So, one of the most useful things you can do to increase your bid success rate is to understand exactly how much time you really have and ways to manage this as effectively as possible.
What is a bid window?
A bid window is the time between the publishing of a supplier announcement (RFP, IFB, ITB, RFQ, EOI, RFSQ, RFI, and almost any other competitive procurement process) and the submission due date.
You could think of it as your preparation runway.
According to the UK’s Procurement Act 2023 guidance, the tendering period starts either on publication of the tender notice or when an invitation to tender is issued (depending on the procedure) and ends at the tender submission deadline.
In most cases, late bids are not accepted because equal treatment and fair competition require the same deadline to be met by all suppliers.
How much time do suppliers actually have?
The short answer is, it depends. But here's a general picture.
- Simple procurements may allow a bid window of a few weeks.
- Standard medium-complexity procurements often allow around 25-30 days or longer.
- Major or highly complex projects may allow several months.
- Emergency or fast-tracked procedures can be much shorter, for instance, 3-4 days, but these are exceptions and depend on the applicable rules.
A competitive tendering process must quote the minimum time period required, according to the UK’s Procurement Act 2023 guidance documents. There are no predetermined upper limits. A contracting authority has to find a suitable balance when creating the procurement schedule so that suppliers have enough time to prepare and, when necessary, take into consideration the contract's complexity.
But, by taking into account the specifics of the activity the tender refers to and the sector it operates in, the duration of a bid window can be calculated and anticipated.
For example, the Tenderwell database (one of the largest platforms aggregating public procurement notices from around the globe) features a parameter called “Avg Lead Time" (average lead time), which represents the average number of days between the publication date and the deadline for tenders in a certain sector. This data can help with the administration of your bid management.
- IT services – an average lead time of 43.9 days
- Agricultural, farming, fishing, forestry and related products – 38.7 days
- Real estate services – 19.1 days.
- Hotel, restaurant and retail trade services – 17 days.
Average lead times vary from one sector to another because some procurement procedures are more complex than others. For instance, a tender in the IT services sector may require technical solutions and coordination between multiple teams, while sectors such as hotel, restaurant, or retail trade services usually involve more standardized requirements that suppliers can prepare in less time.
Tip for first-time bidders: Consider the time you need for all the activities involved, including document collection, financial or legal approval, and working with subcontractors.
How to respond to a tender announcement: A step-by-step process
Step 1: Assess the opportunity (Go/No-go decision)
Before putting together a proposal, decide whether the opportunity is worth pursuing. Check if your organization:
- Meets the eligibility requirements
- Has the required expertise and resources
- Can deliver the project within the required timeframe
- Has sufficient time to prepare a strong proposal.
Step 2. Perform a detailed analysis of the tender documentation
Read and analyze every section of the tender announcement before you begin to write anything. Pay particular attention to:
- Scope of work
- Eligibility requirements
- Evaluation criteria
- Submission instructions
- Required documents
- Deadlines
If you overlook even one mandatory requirement, there’s a high chance of being rejected or disqualified.
Step 3. Create a proposal plan
Consider breaking the work into smaller tasks, assigning responsibilities if multiple people are involved, and creating a checklist of all the required documents, forms, and attachments.
Think about creating an internal timeline to identify any information still outstanding.
TIP: Ask clarification questions
If any requirement is unclear, submit questions before the clarification deadline. Examine all the other published answers and attachments because they will form part of the procurement documents. You may need to seek external assistance, and that takes time.
Don't wait until the last few days because there will be too little time to submit any questions you may have.
Step 4. Prepare a proposal that matches the requirements
To increase your chances of winning, it’s important not to copy and paste a generic template and instead write your proposal around the buyer's requirements, explaining:
- How will you deliver the project
- Who will perform the work
- Why your experience is relevant
- How your approach addresses the client's objectives.
Many organizations use proposal templates and content libraries to save time, but these should only serve as the starting point. Make sure you adapt every section to the specific tender announcement, explain how your solution addresses the project's needs, and avoid copying generic text that does not directly support your response.
Details regarding the financial proposal
Make sure all the costs involved are included, such as staff, travel, accommodation, equipment, taxes, and other expenses. If the project covers multiple countries or currencies, then you must address the exchange rate requirements and payment currency. Small pricing errors or using the incorrect exchange rate can affect your final evaluation.
Read the pricing instructions carefully. Some contracting authorities specify which exchange rate must be used or require all prices to be submitted in a particular currency.
Step 5. Gather your supporting documents
Before beginning to write your proposal, gather all the documents requested in the tender announcement and keep in mind that overlooking a mandatory document or submitting one that is out of date may result in your bid being rejected/disqualified. The list of commonly requested documents may include:
- Company registration or legal entity documents
- Tax compliance certificates
- Financial statements or accounts
- Quality or environmental certifications relevant to the sector (such as ISO 9001 or ISO 14001, health and safety, etc.), if applicable
- Professional indemnity and public liability insurance certificates
- Past performance references, client testimonials, or case studies
- CVs and qualifications of the key personnel.
If you're bidding as a consortium, ensure all the partners provide the required documentation or confirm with the leading consortium partner that this aspect is being dealt with.
Step 6. Support your claims with evidence
Back up your proposal with documents and examples. Based on the announcement, you can provide evidence in the form of details of similar projects, client references, completion certificates, the CVs of key experts, and technical certifications.
Step 7. Review everything before submission
Before submission, verify that every required document has been included, the pricing is accurate, your proposal follows the requested format, and the submission method is correct. Check page limits, calculations, signatures, and attachments.
A final compliance review helps to catch small errors that could lead to rejection.
Step 8. Submit your bid correctly and on time
Do not wait until the last minute – submit at least 24 hours before the deadline and preferably 48 hours. Follow the submission instructions exactly.
By submitting well before the deadline, technical issues or last-minute problems can be avoided such as internet connection problems, file upload issues, electronic portal errors (some systems require you to upload files individually in a specific order), missing documents, and the like.
Most procurement authorities do not accept late submissions, even if the delay is only a few minutes.
Suggested reading: RFP Evaluation Criteria Explained: What Gets Scored
Common mistakes why suppliers lose their bids
Suppliers can make many different mistakes during the bidding process, but looking at thousands of public procurement procedures over the years shows that certain mistakes happen again and again. Here are some of the most common ones.
1. Late start
Suppliers underestimate just how much time it takes to gather supporting documentation, how many internal approvals are required, and how long it may take to produce a strong technical proposal.
2. Failing to submit clarification questions before the deadline
Most tenders include a period during which suppliers can submit questions, and you must take advantage of that. If you don't ask the necessary clarifying questions promptly, you risk losing the opportunity to gain insightful information about the announcement.
3. Ignoring the mandatory requirements
This mistake will end the journey of your bid immediately, and even a strong proposal cannot compensate for a missing certificate or a formatting mistake that fails to meet the requirements.
4. Copying content from old proposals
Copying text from old proposals often leads to generic answers that don't quite match the current tender’s specific requirements, and it’s relatively easy for evaluators to spot when a response doesn't directly answer the question, which in turn can lower your score.
5. Submitting in the final few minutes is a gamble that often fails
If a lot of suppliers are trying to submit their bids at the last minute, the system may slow down, leading to a problem that may be difficult to deal with.
6. Providing unclear or incomplete pricing
This is a common reason why bids lose points or are even rejected. Examples may include pricing that doesn't match the pricing schedule, missing cost items, calculation errors, and failing to follow the required pricing format.
How can tender intelligence tools help you during the bid window?
Remember that your major preparation can start earlier than when you find an RFP or RFQ if you want to remain competitive, that is.
With access to a large procurement database, suppliers can:
- Track tender opportunities across various markets, sectors, countries, and regions
- Track historical contracts with the same buyer to understand their spending patterns and previous contractors
- Identify opportunities earlier in the process
- Benchmark average bid windows to plan staffing and resources
- Spot buyers who are consistently active in their market
Tenderwell platform
Finding the right tender previously involved hours of searching across government portals, industry online sources, and procurement databases. Tenderwell is a tender intelligence platform that brings everything together in one place.
1. One database, 180+ countries
Tenderwell's database covers over 30 million tenders and 500,000+ active government contracts from more than 180 countries.
The search filters integrated into the platform allow you to narrow your selection down by location, sector, budget, deadline, and status, which will save you considerable time that you can use to evaluate other opportunities.
2. Tender alerts
Once you have found a search combination that works, Tenderwell allows you to save this as an alert so that from then on, any new tenders that match the criteria will automatically be sent to you.
You can also bookmark individual tenders and receive notifications when details like deadline extensions, scope updates change, or the project is cancelled.
3. Knowing your competition
At Tenderwell.com, you can follow specific competitors and review their historical bidding activity, namely the contracts they pursued, how frequently they won, and in what sectors.
The awards tracking feature goes a step further
Using real-time data from official award notices, you can reverse-engineer the winning algorithms and pricing strategies of your main competitors.
Conclusion
As a supplier, before you start to write your proposal, you must be well prepared if you hope to increase your chances of winning government contracts. What this means is that you must find opportunities early, decide quickly whether to bid, then build timelines and stick to these.
Start the moment a tender is published, then build your timeline backwards. The bid window will close whether you're ready or not, so your goal is to make sure you’re always ready.
Frequently Asked Questions (FAQs)
How long do suppliers usually have to respond to an RFP?
The time varies significantly. For example, simple contracts in the public sector may allow 15-21 days, medium-sized procurements may have 30-45 day windows, and large or complex projects can allow 60-90 days. In the case of emergency procurements, it can give be as little as 10 days.
What happens if a bid is submitted after the deadline?
In public procurement processes, most of the time late bids are automatically disqualified. This is because accepting a late submission could give one supplier an unfair advantage over others.
Even if the supplier blames technical problems such as a bad internet connection or a lack of one, or portal errors, these are generally not accepted as valid reasons for late submission.
Tip: Submitting at least 24 hours ahead of the deadline is standard practice for experienced bidders.
What is the most common mistake suppliers make when responding to government tenders?
Starting too late is the most common mistake. Writing, document gathering, internal reviews, and portal submissions take time, and you must always take that into consideration.
Tip: Make sure that by the time your proposal is drafted, you still have enough time for quality checks or revisions.
Do government buyers always choose the lowest-priced bid?
No. Most public procurement frameworks use a scoring methodology that evaluates both price and quality. In many tenders, technical quality has more weight than price, sometimes 60–80% of the total score, and in procurements where price is very important, the buyer may be looking for the best value for money, not the cheapest option.
A well-written, evidence-based proposal can win over a lower-priced competitor.
