The verdict in three sentences
Without a structured RFP, a Singapore SME asking three vendors to quote a SaaS platform routinely gets numbers that differ by a factor of four, because each vendor pictures a different product. A 15 to 30 page document with 40 to 80 user stories prioritised with MoSCoW brings that spread down to around 1.5x and makes bids genuinely comparable. Written in-house in 2 to 4 weeks or produced in a paid discovery phase of SGD 5,000 to 12,000 (roughly USD 3,700 to 9,000) as a 2026 estimate, it is the highest-return spend of the whole project.
The RFP template in 9 sections
A good SaaS RFP does not describe the interface screen by screen: it describes users, what they need to do, and the constraints. Here is the structure we recommend, with an indicative length for each part.
| Section | Expected content | Indicative length |
|---|---|---|
| 1. Context and goals | Problem, market, measurable success metrics | 1 to 2 pages |
| 2. Personas and roles | 3 to 6 profiles, permissions for each | 1 to 3 pages |
| 3. Key journeys | Sign-up, core usage, billing | 2 to 4 pages |
| 4. Prioritised user stories | 40 to 80 stories tagged Must, Should, Could, Won't | 5 to 10 pages |
| 5. Subscription model | Plans, limits, free trial, payment methods (cards, PayNow) | 1 to 2 pages |
| 6. Integrations | Stripe, CRM, Xero, SSO, public API | 1 to 2 pages |
| 7. Non-functional requirements | Performance, uptime, PDPA, data residency | 1 to 3 pages |
| 8. Project constraints | Indicative budget, target date, internal team | 1 page |
| 9. Required response format | Pricing grid per story batch, timeline, team | 1 page |
Section 9 is the one most often forgotten and the most useful: by making vendors price each batch of stories separately, you can compare line by line and spot immediately who underestimated what.
What good scoping costs and what it saves
MoSCoW separates the essential from the nice-to-have. In practice a well-scoped SaaS MVP holds 25 to 40 Must stories, with the rest pushed to versions 2 and 3. That sorting is what cuts launch budgets by 30 to 50% compared with a document where everything is a priority.
| Approach | 2026 cost estimate | Time | Typical spread between quotes |
|---|---|---|---|
| No document, verbal brief | SGD 0 | 0 weeks | 3x to 4x |
| 3 to 5 page brief | Internal time, 2 to 3 days | 1 week | 2.5x to 3x |
| 15 to 30 page RFP written in-house | 8 to 15 days of founder time | 2 to 4 weeks | 1.5x to 2x |
| Paid discovery phase with a vendor | SGD 5,000 to 12,000 | 2 to 4 weeks | 1.3x to 1.5x |
| Discovery + clickable Figma prototype | SGD 10,000 to 22,000 | 4 to 6 weeks | 1.2x to 1.4x |
On funding: Enterprise Singapore's Startup SG Tech grant supports proof-of-concept and proof-of-value work for eligible tech startups, and the Productivity Solutions Grant can co-fund pre-approved digital solutions for SMEs. Check current eligibility before you count on either, but a clear RFP strengthens any application.
The 6 most common mistakes
First: describing technical solutions ("MongoDB", "React Native app") instead of needs. Let vendors propose. Second: forgetting admin and support roles, often 20% of the build. Third: leaving the subscription model vague, even though recurring billing, trials and plan changes carry real weight. Fourth: skipping PDPA and data residency, which enterprise buyers in Singapore will ask about. Fifth: giving no indicative budget, so every vendor guesses. Sixth: sending the RFP to 8 vendors instead of 3 well-chosen ones, which dilutes response quality.
If you are torn between building and assembling existing tools, our custom back office vs Retool guide helps decide some components. For the build itself, see our custom web and SaaS applications page.
Mini case study
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Mei Ling, managing director of a B2B services SME in Singapore, asks three agencies to quote a scheduling SaaS platform. Without an RFP she receives quotes of SGD 30,000, 70,000 and 118,000: a 3.9x spread that cannot be compared. She funds a SGD 9,000 discovery phase over 3 weeks, producing a 24-page RFP with 62 user stories, 34 of them Must.
Second round: SGD 63,000, 76,000 and 90,000, a 1.4x spread. Picking the middle bid and pushing the 28 lower-priority stories to version 2, the MVP costs SGD 76,000. Against the original SGD 118,000 bid that is SGD 42,000 saved, and against the change-order risk on the SGD 30,000 bid (often doubled mid-project) the scoping avoided an overrun estimated at SGD 30,000. The SGD 9,000 returned more than 3x.
FAQ
How long should a SaaS RFP be?
Between 15 and 30 pages for an MVP. Under 10 pages, quotes stay hard to compare; over 40 pages, nobody reads it in full.
How many user stories do we need?
Between 40 and 80 for a SaaS platform, with 25 to 40 marked Must. Each story fits in one sentence with 2 to 4 acceptance criteria.
Should we share our budget with vendors?
Yes, an indicative range improves proposal quality. Without one, the spread between quotes often doubles.
Is a paid discovery phase credited against the build?
With many vendors, yes, if you sign the build with them. The document stays yours and can be sent to other vendors.
How long does writing the RFP take?
Plan 2 to 4 weeks with 3 to 5 two-hour workshops between leadership, future users and the writer. Timing depends mostly on decision makers' availability.
Let's scope your project. Send us your brief or first RFP draft, and we will help you prioritise user stories and set a realistic schedule. Detailed quote within 48 h. WhatsApp +221 77 596 93 33.
Mohamed Bah
Fondateur, Kolonell
Passionate about digital and entrepreneurship in Africa, Mohamed has been helping Sénégalese businesses with their digital transformation since 2020. Founder of Kolonell, he believes every SME deserves a professional and accessible online présence.