Updated 10.07.2026
A bid writing service in the UK typically costs £500 to £3,000 per tender for small and medium-sized businesses, rising to £10,000 or more for complex, multi-lot framework bids. A professional review of a bid you have already drafted usually costs £400 to £950, day rates for bid writers run from £250 to £950 or more depending on seniority, and ongoing retainer support starts from around £400 per month.
Those are the headline figures. The rest of this guide breaks down what you get at each price point, how providers structure their fees, and the factors that push costs up or down, so you can budget with confidence before you approach anyone for a quote.
Costs vary depending on the size and complexity of the tender, whether you need full bid writing or a lighter review, and how quickly you need turnaround. This guide sets out typical pricing structures and what drives the cost up or down, so you know roughly what to budget before you ask for a quote.
For a quote tailored to your specific tender, get in touch about our bid writing service.
Bid writing costs at a glance
| Service | Typical UK cost | What it covers |
|---|---|---|
| Bid review and compliance check | £400 to £950+ | An expert review of your completed draft: compliance against the tender requirements, scoring potential, clarity, and recommended improvements |
| Small or straightforward tender | £500 to £1,500 | End-to-end writing for a short submission with a small number of quality questions |
| Mid-size tender | £1,500 to £3,000 | Full writing support for a typical 5,000 to 10,000 word submission, including strategy, drafting, and quality assurance |
| Large or complex tender | £3,000 to £10,000 | High-value single contracts with extensive quality questions, technical annexes, or heavy evidence requirements |
| Frameworks and major programmes | £10,000 to £28,000+ | Multi-lot public sector framework applications requiring evidence building, coordination, and long-term project management |
| Monthly retainer | £400 to £8,000+ per month | Ongoing access to bid writers and bid management, scaled to your tender volume |
| Bid writing training | £500 to £2,500 per session | Upskilling your internal team in bid strategy, response writing, and evaluation criteria |
Every provider structures things slightly differently, so treat these as reliable brackets rather than fixed menus. A reputable bid writing company will always review your tender documents before quoting.
The four main pricing models
1. Fixed fee per bid
The most common model, especially for SMEs. The provider reviews the tender documents, assesses the number and complexity of the quality questions, and quotes a flat fee upfront. Fixed fees for a single tender generally sit between £500 and £3,000, with complex submissions above that.
The advantage is certainty: you know the full cost before any work begins, and there are no surprises if a response takes longer than expected. This is the model we use at DellaPip, because it keeps the risk on our side rather than yours.
2. Day rates
Where the scope is less defined, or the work is highly collaborative, providers charge by the day. Expect £250 to £600 per day for freelance bid writers and independent consultants, and £600 to £950 or more per day for senior sector specialists and established agencies.
Day rates suit ongoing or advisory work, but for a defined tender they can make budgeting harder, since the total depends on how long the bid takes.
3. Hourly rates
Used mainly for small, ad-hoc tasks: proofreading, light editing, answering a single tricky question, or short advisory calls. Hourly rates typically run £30 to £110 depending on experience.
4. Monthly retainers
For businesses that bid regularly, a retainer guarantees consultant availability and spreads the cost. Entry-level retainers start around £400 per month for light-touch support, with comprehensive packages for high-volume bidders scaling to £8,000 per month or more. If you submit several tenders a quarter, a retainer usually works out cheaper per bid than commissioning each one individually. You can see how this works in practice on our retainer packages page.
What about no-win, no-fee?
Some providers, particularly in grant writing, work on a success-fee basis, charging a commission of roughly 5% to 12% of the funds secured if the application wins. Two cautions here. First, genuine no-win, no-fee arrangements are rare in competitive tendering, because so much of the outcome depends on factors outside the writer’s control, such as your pricing and track record. Second, if you are applying for public grant funding, you generally cannot use the awarded money to pay the success fee, so you still need the budget to settle it separately.
What drives the price up or down
- Word count and question volume. The single biggest driver. A tender with four 500-word questions is a very different job from one with fifteen 1,000-word responses, technical annexes, and mandatory attachments.
- Quality weighting. If the buyer scores 60% or more on quality rather than price, the written responses carry the contract. Bids like this need deeper strategy, stronger evidence, and more senior input, which increases the fee but also increases the return on getting it right.
- Deadline. Urgent submissions with only days to spare usually attract a premium, because the provider has to reprioritise other work. Engaging a bid writer early is the easiest way to keep costs down.
- Sector complexity. Highly regulated or technical sectors, such as defence, healthcare, and construction, require writers with genuine sector knowledge, which sits at the senior end of the rate ranges.
- How much you bring to the table. If you have an organised library of case studies, policies, and past responses, the writer spends less time gathering evidence and more time scoring points. Businesses bidding for the first time should budget toward the upper end of each range.
Is a bid writing service worth the cost?
Looked at as a percentage of the contract value, professional bid writing is usually one of the cheapest inputs in the entire process. A £2,500 fee on a £250,000 contract is 1% of the value at stake, and the difference between a 6/10 answer and a 9/10 answer is routinely the difference between winning and losing.
The honest comparison is not the fee versus zero. It is the fee versus the internal time a good submission takes (often 40 to 100 hours), the risk of compliance errors that disqualify you outright, and the cost of losing contracts you were capable of delivering. We have set out the full calculation, with worked examples, in our guide to the ROI of professional bid writing services.
If you are comparing providers on price, remember that cost is only one of the things to weigh up. Our guide on how to choose a bid writing service covers the questions to ask and the red flags to avoid.
How DellaPip prices bid writing
We quote a fixed fee for every tender, agreed upfront after we have reviewed your documents, with no hidden extras. Whether you need a full bid writing service, a review of a bid you have already written, or ongoing retainer support, we will give you an honest assessment of the tender, the work involved, and whether it is worth bidding at all.
Book a free 15-minute chat and we will talk through your next opportunity and give you a clear, no-obligation quote.
Frequently asked questions
For most UK SMEs, a professionally written tender costs between £500 and £3,000 as a fixed fee, depending on the length and complexity of the submission. Large framework bids can cost £10,000 or more.
A professional review of a draft bid typically costs £400 to £950, depending on the length of the submission and how close the deadline is. It is the most cost-effective way to use external expertise if you already have writing capability in-house.
Freelance bid writers typically charge £250 to £600 per day. Senior consultants and specialist agencies charge £600 to £950 or more per day.
Rarely for competitive tenders. Success-fee models are more common in grant writing, where fees of 5% to 12% of secured funding apply. Most tender specialists charge a fixed fee or day rate regardless of outcome.
It can be if you tender frequently enough to justify a dedicated role, but a full-time bid writer costs £45,000 or more per year before overheads. For occasional or unpredictable bidding, outsourcing usually costs less overall. See our comparison of outsourced bid writing versus an internal team.