How to Write a Software Development RFP That Gets You Useful Responses

I read a lot of RFPs. Some of them are excellent: clear on the problem, honest about constraints, thoughtful about evaluation criteria. We respond to those quickly and enjoy writing the proposal.

Most are not like that. Most are documents where someone has written a technical specification — database schema, tech stack, feature list — and added a cover page asking agencies to price it. Sometimes they are 30 pages long. Sometimes they contain requirements that contradict each other in ways the author has not noticed. Almost always, they are missing the thing that would actually help an agency respond well: a clear description of the business problem.

This is a practical guide to writing an RFP that works, by which I mean: attracts thoughtful responses from competent agencies, gives you real information to compare, and does not take three months to evaluate.

Why most software RFPs fail

An RFP for software development is different from an RFP for a commodity purchase. When you put out an RFP for office supplies, you want the cheapest price for a defined product. When you put out an RFP for software development, you presumably want something that solves a business problem you could not solve more easily yourself.

The mistake is treating a software RFP like the office supplies version. Defining the solution in detail — the tech stack, the architecture, the feature list — does not give agencies the information to propose a solution. It gives them a specification to price.

When you specify the implementation, you are implicitly telling agencies: “We have already decided what to build. We need someone to execute it.” That is a legitimate thing to need, but it is not what an RFP is for. If you have a completed specification, what you want is a request for quotation (RFQ), not an RFP.

The RFP is for when you know the problem but want proposals for how to solve it.

What belongs in the document

1. Business context (one to two pages)

Describe the business situation: who the users are, what they currently do, where the pain is, and why solving it matters to the business. This section should read like a problem statement, not a product brief.

Include: the current state (what tools or processes are being replaced), why the current state is inadequate, who is affected and how, and what a successful outcome changes about the business.

Skip: feature lists, user stories, technical requirements. Those belong later, if at all.

2. Outcomes and measurement

What does success look like, and how will you know you have it? If the project is a new customer portal, what does a successful portal accomplish? Fewer support tickets? Faster customer onboarding? Higher NPS from a specific segment? Concrete outcomes help agencies think about what to build and how to propose it.

If you cannot articulate the outcome, you are not ready to write an RFP. You need a discovery engagement first.

3. Constraints

What are the hard constraints the agency must work within? These might include: systems the software must integrate with, data residency or compliance requirements, a deadline that cannot move (a regulatory date, a product launch), a specific budget ceiling, or an internal technical team the agency must hand off to at the end.

Be honest about constraints. Hiding a $50k budget in an RFP for a $300k project wastes everyone’s time, including yours.

4. Budget range

Include a budget range. A range — “our budget is between $80k and $150k” — is enough information. It does not give away your exact number. It tells agencies whether they can do the job within your ceiling and whether your expectations are realistic.

The argument against including a budget range (“it will anchor proposals upward”) is almost always wrong. Agencies that respond to budget transparency by padding their proposal up to the ceiling are not the agencies you want. The ones who respond by telling you honestly whether they can do the work for that number are.

5. Timeline

Include: when you need the project to complete, any fixed external deadlines, and whether the timeline is flexible or fixed. If there is a hard external deadline, say so — it changes how agencies scope the work and what they propose.

Do not include: a detailed project timeline with phases and milestones. You are asking agencies to propose an approach; prescribing the timeline tells them you have already decided. If you have a strong view on methodology (agile sprints, staged delivery), mention the preference but leave room for the proposal to address it.

6. Your team context

Who on your side will own this project? How much time can your team commit to the process? Who are the subject matter experts the agency will need access to? Who has final sign-off?

This is the section most RFPs skip entirely, and it is genuinely important. Agencies are evaluating whether this will be a productive engagement. A project with no clear internal owner is a risk. A project where the decision-maker is three levels removed from the process is a different kind of risk. Agencies who have been through difficult projects will factor this.

7. Evaluation criteria

Tell respondents how you will evaluate proposals. Common criteria include: relevant prior experience, proposed approach and fit to the problem, team quality and specific expertise, cost, and references. Weighting them helps agencies write to what matters.

If evaluation will include a shortlist presentation or discovery session with the top two or three respondents, say so. It is a reasonable ask and good agencies will welcome it.

What to leave out

Detailed technical specifications. Feature lists, user stories, data models, and API designs belong in a reference appendix at most — not in the core brief. If you have done enough analysis to write a complete technical specification, you may not need an agency to design the solution. You might need an agency to build it. That is a different relationship and a different document.

Prescriptive tech stack requirements. Unless there are genuine reasons to use a specific stack (existing internal expertise, systems that require a specific integration language, compliance that mandates a certain tooling), leave the stack open. You are evaluating whether the agency can solve the problem; the stack is part of how they propose to solve it.

Meaningless requirement-speak. “The system shall be scalable, performant, and secure” tells an agency nothing. These are the minimum expectations for any software, not requirements. If you have specific performance targets, compliance requirements, or security certifications, state those concretely.

How agencies evaluate an RFP

When we receive an RFP at Codercops, we make a quick pass on a few things before deciding whether to respond:

Is the problem clear? If we cannot understand what business problem is being solved after one read, the proposal will be a guess. We will sometimes reach out to ask, but many agencies will not — they will simply pass.

Is the scope realistic for the budget? An RFP that asks for a custom ERP system with a $50k budget has not been written by someone with a clear sense of what software development costs. Responding would mean proposing something that does not meet the actual requirement, which is not useful for anyone.

Is there a real decision-maker attached to this? Projects where procurement is running the RFP on behalf of a technical team that was not involved in writing it are a yellow flag. We look for evidence that someone on the buyer side understands the problem deeply enough to evaluate responses.

Is there an internal champion? The best agency engagements have someone on the client side who has genuine ownership and can move decisions. RFPs where the internal stakeholder structure is unclear tend to produce projects that stall at the same places.

The alternative: a discovery brief

For many projects — especially projects in the $30k-$100k range or projects where the problem is not yet well-understood — an RFP is the wrong tool. What works better is a short discovery brief (two to three pages) and a direct set of conversations with three or four agencies.

A discovery brief describes the problem and asks agencies whether they want to discuss it. An agency that is interested will schedule a discovery call. From that call, you learn more about their approach in 45 minutes than you would from a formal written proposal.

This path is faster, produces better conversation, and often surfaces better proposals because the agency has been able to ask questions before writing. The formal RFP process is worth the overhead for projects above a complexity threshold — typically $200k and above, or projects with multiple competing design approaches that genuinely benefit from written comparison.

Connecting it to the contract

Once you have selected an agency, the choice between fixed price and time-and-materials matters a lot. The fixed price vs. time and materials guide is worth reading before you finalize the engagement structure — the RFP outcome should inform which model makes sense, and some agencies will propose one while you assumed the other.

For the broader agency selection process — what to look for in a portfolio, how to evaluate cultural fit, how to check references — the agency hiring guide for 2026 covers that in detail.

A good RFP opens a conversation. The goal is not to preselect a winner on paper but to surface two or three agencies worth having a serious conversation with. Write to that goal and the document will do its job.