How to write a software RFP that gets you comparable quotes
How to write a software development RFP: the sections to include, how to describe requirements, budget and timeline, how to score proposals, and common mistakes.
- A good software RFP describes the problem, users and outcomes in plain language and leaves the solution to the vendors.
- Include a budget range and a realistic timeline; without them, proposals are not comparable.
- Write requirements as user goals with must, should and could priorities, and keep the must list short.
- Publish how you will score proposals, ask every vendor the same questions, and give them time to ask theirs.
A software RFP (request for proposal) should explain your business problem, users, must-have requirements, integrations, budget range, timeline and how you will choose. Keep it to a few clear pages, describe outcomes rather than technology, and ask every vendor the same questions so the proposals you get back are comparable.
Most weak proposals come from weak RFPs: vague scope, no budget, no priorities, so each vendor guesses differently. This guide walks through each section of a software RFP, how to write requirements vendors can actually price, how to score what comes back, and the mistakes worth avoiding.
RFI, RFQ or RFP: which do you need?
| Document | What it asks | Use it when |
|---|---|---|
| RFI (request for information) | Who are you, what do you do, how do you work? | You are exploring the market and building a shortlist |
| RFQ (request for quotation) | What is your price for this exact specification? | The scope is fully defined and price is the main difference |
| RFP (request for proposal) | How would you solve this problem, with whom, when and for how much? | The solution is open and approach, team and fit matter as much as price |
Most custom software and app projects need an RFP, because the right solution is part of what you are buying. If you are still deciding whether to build at all, read custom software vs SaaS first; an off-the-shelf product may solve the problem without an RFP.
The sections of a software RFP
You do not need a long document. You need each of these sections, written plainly:
| Section | What to include | Why vendors need it |
|---|---|---|
| 1. About you | Your organisation, what it does, who the project sponsor is | Context for every assumption they make |
| 2. The problem | What is not working today, for whom, and what it costs you | So they solve the right problem, not the stated feature list |
| 3. Goals and success | Outcomes you want and how you will measure them | So proposals aim at results, not output |
| 4. Users and flows | Every user role and the three to five key journeys | Roles and flows are the biggest driver of size |
| 5. Requirements | Must, should and could items, plus non-functional needs | The core of what they price |
| 6. Integrations and data | Systems to connect, data to migrate, who owns each | Integrations are a common source of overruns |
| 7. Constraints | Platforms, hosting, security, compliance, data location, accessibility | Constraints rule options in or out early |
| 8. Budget and timeline | A budget range, target launch date and any fixed deadlines | Without them, proposals are not comparable |
| 9. What you want back | Proposal format, questions to answer, team, references, pricing model | So every response has the same shape |
| 10. Process and scoring | Dates, Q&A window, shortlist, demos, evaluation criteria and weights | Fairness, and fewer surprises for both sides |
How to write requirements vendors can price
Requirements are where most RFPs go wrong, either too vague (“a modern, user-friendly app”) or too prescriptive (screen-by-screen designs from a non-designer). Aim for the middle.
- Write user goals, not features. “A clinic receptionist can see today’s bookings and mark a patient as arrived” is easier to price than “a dashboard”.
- Prioritise honestly. Mark each item must, should or could. If everything is a must, nothing is, and every vendor will price the full list.
- Separate business rules. Approval limits, pricing rules and calculations deserve their own list with examples.
- State non-functional needs. Expected users and data volume, uptime, response times, accessibility, languages, backups and security.
- Give numbers where you have them: how many users, orders, samples or records per day or month.
Regulated systems need more formality. In pharma and labs the requirements usually become a user requirements specification that QA approves and testing traces back to; our guide to writing a LIMS URS shows that format.
Budget and timeline: say the number
Many buyers leave the budget out, hoping for a low bid. In practice it produces proposals for very different products: one vendor prices a lean first release, another a full platform, and you cannot compare them.
Give a range, even a wide one, and say whether it covers only the first release or the first year including upkeep. If you have no idea what is realistic, our guide to app development cost in India publishes indicative ranges by complexity; use them as a starting point, then let proposals refine the number.
For timeline, separate the date you would like from any date that is truly fixed, such as a regulatory deadline, a season or a funding milestone. Vendors can then propose what fits by when.
How to score proposals fairly
Decide how you will judge proposals before you read any of them, and share the criteria in the RFP. A simple weighted scorecard is enough:
| Criterion | What good looks like | Example weight |
|---|---|---|
| Understanding of the problem | Restates your goals, asks sharp questions, challenges weak assumptions | 25% |
| Approach and plan | Clear phases, first release defined, risks named with mitigations | 20% |
| Team and relevant experience | Named people, similar work you can verify, references | 20% |
| Price and pricing model | Itemised, assumptions stated, change pricing explained | 20% |
| Ways of working | Demo cadence, reporting, code ownership, handover, support | 15% |
Have two or three people score independently, then compare. Shortlist two or three vendors for a working session or demo. How a team handles a real conversation about your problem tells you more than any written answer. Our guide to choosing a software development company in India lists the questions worth asking in that session.
Running the RFP process
- Shortlist first. Send the RFP to a handful of vendors that fit, not to everyone you can find.
- Give enough time. Two to three weeks for a proposal is reasonable for a typical project.
- Hold a Q&A window. Collect questions by a date and share every answer with all vendors.
- Score, shortlist, meet. Use your published criteria, then hold working sessions with the shortlist.
- Check references and terms. Code and IP ownership, data protection, payment milestones, warranty and support.
- Tell everyone the outcome. A short note to the vendors you did not choose keeps doors open.
Common RFP mistakes
- Copying a long template and leaving in sections that do not apply.
- Specifying the technology instead of the outcome, unless you truly have a constraint.
- No budget range, so proposals cover different products.
- Every requirement marked as a must.
- Hiding known risks, such as a poorly documented system you must integrate with.
- Choosing on price alone without checking what is included and excluded.
- Too short a response window, which rewards boilerplate over thought.
How we respond to RFPs
We are an AI-first software studio building web platforms, Flutter apps, AI agents and regulated software for clients in the Tricity, across India and worldwide. When we receive an RFP we read it closely, send our questions in the Q&A window, and reply with a written proposal that restates your goals, defines a first release, names the people who will do the work and itemises the price and assumptions.
If you are not ready for a formal RFP, a short brief is enough to start. Tell us what you are building, and we will send you a written, scoped estimate.
Frequently asked questions
What should a software RFP include?
Your background, the problem, goals and success measures, users and key flows, prioritised requirements, integrations and data, constraints, a budget range and timeline, the response format, and how you will score proposals.
How long should a software RFP be?
Usually a few clear pages plus an appendix of requirements is enough. Longer is not better if vendors cannot see what matters most.
Should I include my budget in an RFP?
Yes. A budget range, even a wide one, lets vendors propose a solution that fits and makes proposals comparable. Without it, vendors price very different products.
What is the difference between an RFP and an RFQ?
An RFQ asks for a price for a fully defined specification. An RFP asks vendors to propose how they would solve a problem, including approach, team, timeline and price.
How many vendors should I send an RFP to?
A handful that genuinely fit your project is usually better than a long list. It gets more thoughtful responses and keeps the evaluation manageable.
How do I compare software proposals fairly?
Agree a weighted scorecard before reading them, have two or three people score independently, ask every vendor the same questions, and hold working sessions with a shortlist.