Writing a Marketing Proposal | A Seven-Part Structure and the Budget Section
Shusaku Yosa

You write a proposal for a campaign, and the meeting turns entirely into a conversation about money without ever reaching the substance. Or you get asked "so what will this actually do?" and have no answer ready. Most of these problems come from the order things are written in and the level of detail. This article covers the structure of a marketing proposal and how to write the budget section.
Ask for One Decision Only
Something to settle before you start writing: what you want the reader to decide.
There are three main patterns.
- Whether to do it: asking approval for something new.
- Which one to pick: asking someone to choose between options.
- How much to spend: the direction is agreed and only the scale is open.
Mix these and the meeting sprawls. Ask whether to run something new while including a detailed cost breakdown, and you never escape the discussion of cost.
The Seven Parts
The sections, in order.
- What we will do: the campaign in one or two lines.
- Why now: the background, and why it cannot wait.
- Who we are reaching: the audience and where they currently stand.
- What we expect to happen: the specific change in behaviour.
- What counts as success: a judgeable number and a date.
- How we will run it: the outline of the team and schedule.
- What it costs: an estimate, plus the largest components.
That fits on a single page. Longer than that and the meeting starts before anyone has read it.
The second is the one most often missing
A proposal without "why now" ends at "sounds good, let's look into it."
What to write is the cost of waiting. A competitor takes it first, you miss the season, or the lead time means deciding now is the only way to make the date. With a fact like that on the page, the decision is harder to defer.
Write the fourth as behaviour
Phrases like "awareness rises" or "they become interested" leave you unable to judge the outcome.
Downloading a document, making an enquiry, visiting a store. Write the actual behaviour and the fifth section, the definition of success, settles itself.
The Budget Section Can Be an Estimate
The budget section of a proposal does not need quotation-level precision.
Include a detailed breakdown and you get asked to justify every line, which keeps the discussion away from the campaign itself. Chasing quotes for something not yet approved is also wasted effort.
Give it a range
A range fits reality better than a single figure.
A range makes it easier to explain when the number moves later. Commit to one figure and any overrun, however small, triggers another approval.
At most three line items
If you break it down, use the three largest items. Media, production, and outsourcing is a fine level of detail.
List ten and every one of them needs justifying. The fine detail can wait until the work is approved.
Add one line on where the number came from
Next to the figure, write one line on how you arrived at it.
"A comparable campaign last time came to this much" or "confirmed with the vendor" changes how much the number is trusted. Where you have no basis, label it an estimate. Saying so is safer than presenting a vague figure as if it were solid.
What Stalled Proposals Have in Common
Proposals that are perfectly reasonable yet never get decided share certain traits.
No option of not doing it
A proposal written on the assumption that it will happen looks like it is asking for a decision but is actually asking for approval.
One line on what happens if you do not proceed lets the reader compare and decide. Without it, the question "could we just not?" hangs over the room.
No mention of who does the work
However good the campaign, it will not be approved without a view on who executes it.
On top of existing work, by stopping something else, or outsourced? A proposal silent on this makes the approver uneasy too.
No date on the outcome
"One hundred leads" alone gives no indication of when you judge it.
"One hundred leads three months after launch" fixes when the review happens. For work that takes time to show results, adding an interim metric reassures people.
When Presenting Several Options
If you want the reader to choose, keep it to two or three options.
The important part is not making the difference purely about money. Line up three options that differ only in price and the cheapest gets picked.
Make each option go after something different, and the decision happens on an axis other than cost. A fast, smaller return versus a slower, larger one, for instance.
Checks Before Submitting
Confirm these three before you send it.
- No terminology the decision-maker will not know.
- Nothing that contradicts the sales team's numbers.
- A stated deadline for the decision.
The third gets missed surprisingly often. Without a deadline, "let's look into it" turns into several weeks.
Frequently Asked Questions
Slides or a document?
Slides if you get to present, a document if it will be circulated and judged. Slides are built assuming a presenter, so they do not carry intent on their own. If you need both, make the document the primary artefact and keep the slides for presenting.
There is no precedent, so we have no numbers
Write what you want to find out rather than predicting an outcome. Setting the objective as "confirm whether this reaches that audience" and proposing a small budget gets through more easily. Large speculative numbers invite questions about their basis and collapse.
It keeps coming back for revision
Have someone in a similar position read it once first, even if not the decision-maker. Assumptions obvious to you often have not reached anyone else. Keeping a note of why it came back stops you drawing the same comment next time.
What if the budget is already fixed?
With a ceiling set, you are writing what is achievable at that figure. Even then, frame it as something that may come in under rather than as spending it all. Built on the assumption of full spend, it becomes hard to change course midway.
What Happens After Approval
Getting a proposal approved is not the goal; seeing whether it reaches the success criteria you wrote is where the job ends. When the assumptions at submission and the actual results live in different places, every review starts with a search.
Xtrategy manages campaign schedules alongside budget and KPIs on a single screen. With the proposal's numbers and the actuals in the same place, your next proposal can cite the last one's results.
Summary
- Before writing, settle what decision you are asking for.
- Seven sections, fitting on a single page.
- The commonly missed one is "why now." Write the cost of waiting.
- Express the expected change as behaviour the audience takes.
- Give the budget a range, with at most three line items.
- Do not let options differ on price alone.
What helps most in a proposal is the line on what happens if you do not proceed. Add that line to the proposal you are writing now. If you cannot write it, the campaign may not be a priority yet.