How to Write an Agency Brief
A good brief is the single biggest lever on how an agency relationship goes, and most of them are one page long. This guide covers what to put in, what to leave out, and includes a free fill-in-the-blank template you can copy and send today.
Key takeaways
- A working brief covers the problem, the goal, the audience, a real budget, the timeline, and how success will be measured.
- Share a real budget range. Withholding it does not get you a better price, it gets you a proposal built for the wrong tier.
- Describe the problem, not the solution. Prescribing a tagline or a color palette narrows the thinking you're paying for.
- One to two pages is enough. A brief starts a conversation; it does not need to answer every question up front.
- Use the template below as a starting point, then send the same brief to every agency on your shortlist so proposals are easy to compare.
What this guide covers
1. Why the brief matters more than the pitch
Most disappointing agency engagements can be traced back to a brief that was too vague, too late, or never written down at all. An agency can only be as good as the problem it is given to solve, and a rushed verbal summary on a discovery call is not a substitute for a document every stakeholder has actually agreed on.
A brief is not paperwork. It is the fastest way to get honest, comparable answers from more than one agency, because everyone is responding to the same problem instead of whatever they happened to hear on their call. Our guide on how to choose an agency assumes a brief exists; this one is about writing it.
2. What goes into a working brief
A brief that actually gets used covers a short, specific list, and nothing more:
- Background. A few sentences on the business and the situation that created this project.
- The goal. One clear sentence. "Launch a new brand identity" and "grow qualified leads from paid social" call for very different partners.
- The audience. Who the work needs to reach, specific enough to actually guide decisions.
- Budget. A real range, not "flexible" or "depends on the proposal."
- Timeline. Any fixed dates you cannot move, and when you'd like to start.
- Deliverables. What you expect to receive, even in rough terms.
- Success metrics. How you and the agency will know the work worked.
- Decision-maker. Who has final sign-off, so the agency knows who it is actually convincing.
- Constraints. Existing brand guidelines, legal or regulatory requirements, or anything else the agency needs to know before it starts.
3. The brief template
Copy the block below into a document, fill in each line, and you have a brief ready to send. It is deliberately short. If a section does not apply to your project, delete it rather than force an answer.
Copy & fill in
- Project name
- e.g. 2027 brand identity refresh
- Background
- What the business does, and what situation created this project
- Goal
- One sentence. What does success look like?
- Audience
- Who this work needs to reach or persuade
- Budget range
- A real number, even a rough one
- Timeline
- Fixed dates you cannot move, and your ideal start date
- Deliverables
- What you expect to receive, even in rough terms
- Success metrics
- How you'll know the work worked
- Decision-maker
- Who has final sign-off
- Constraints
- Brand guidelines, legal or regulatory requirements, technical limits
- Examples you admire
- A brand, campaign, or piece of work you'd point to as a reference, and why
Optional but useful: link a few agencies whose work made you write this brief in the first place. It gives the ones you contact a fast, specific read on your taste.
4. How much detail is enough
The right amount of detail describes the problem thoroughly and the solution not at all. State the goal, the audience, and the constraints with real specificity, then stop. Prescribing the creative direction, a tagline, a color, a specific campaign idea, undercuts the reason to hire an agency in the first place, which is to bring a perspective you do not already have in the room.
One to two pages is the right length for most projects. If you find yourself writing three or more, check whether you have drifted from describing the problem into designing the solution yourself.
5. Mistakes that weaken a brief
- No real budget. "Send us your best rate" gets you proposals for three different tiers and three wasted calls narrowing it down.
- A goal stated as a tactic. "We need a new website" is a deliverable, not a goal. What is the website supposed to do?
- No named decision-maker. Committees without a single owner produce briefs that contradict themselves by the second paragraph.
- Moving goalposts. Sending different versions of the brief to different agencies makes proposals impossible to compare fairly.
- Prescribing the solution. A brief that already contains the tagline is not a brief, it is an assignment.
6. Sharing the brief with your shortlist
Send the identical brief to every agency on your shortlist, ideally three to five. Sending the same document to everyone is what makes their proposals genuinely comparable, rather than answers to slightly different questions. If a specialty is clearly right for the work, for instance an identity project, a shortlist built from New York branding agencies or Austin branding agencies will read your brief with more relevant context than a generalist search would.
For a handful of agencies, sharing the brief directly and having a conversation works fine. For a larger, more formal search across many agencies at once, brands typically formalize the same information into an RFP, a process our upcoming guide on running a pitch will cover in more depth.
7. What happens after you send it
A good brief earns you two things: faster, more useful first calls, and proposals you can actually compare side by side. Expect follow-up questions, that is a sign the agency is engaging with the problem rather than reciting a boilerplate pitch. What you should not expect is a finished creative direction in the first response. At this stage you are evaluating how an agency thinks about your problem, covered in more depth in our guide on how to choose an agency, not judging a finished idea.
Frequently asked questions
What should be included in a creative brief?
A working brief covers the background and problem, a single clear goal, the audience, a real budget range, the timeline, the deliverables you expect, how success will be measured, who has final sign-off, and any constraints the agency needs to know up front, such as existing brand guidelines or legal requirements. It should be short enough to read in a few minutes.
How long should a creative brief be?
One to two pages is usually enough. A brief is a starting point for a conversation, not a legal contract, so the goal is clarity and honesty about the goal, budget, and timeline rather than exhaustive detail. If it takes more than a few minutes to read, it is probably describing the solution instead of the problem.
Should I share my budget in the brief?
Yes, even a rough range. Withholding the budget does not get you a better price; it usually gets you a proposal shaped for the wrong tier, followed by a few wasted calls narrowing it down. Sharing a real number lets an agency tell you honestly, and quickly, whether the scope and the budget match.
What is the difference between a brief and an RFP?
A brief is the working document that describes a project's goal, audience, budget, and timeline, usually shared informally with one or a few agencies you are already talking to. An RFP, or Request for Proposal, is a more formal version of the same information, sent to several agencies at once who then compete for the business in a structured pitch process.
Should a brief include the creative solution?
No. A brief should describe the problem, not the solution. Prescribing a specific creative direction, such as a tagline or a color palette, narrows the thinking before an agency has had the chance to bring its own perspective, which is usually the reason to hire one in the first place. State the goal and the constraints, and let the agency propose how to get there.
Ready to send it
Once the brief is written, the next step is a focused shortlist. Every agency on Agency Showcase is chosen by hand for the quality of its work, so browsing by specialty or city is a fast way to build one.
Browse the directory →Related reading: How to Choose an Agency, What Does an Agency Cost?, and Agency & Creative Glossary.
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