How to write a business proposal clients sign

To write a business proposal a client signs, first find out the problem, who decides and the budget range. Then write the scope and the price before anything else, build the approach around them, and write the summary last. Keep it to the sections a buyer needs to say yes, in the order they ask their questions, and end with one clear next step and a date. This guide walks through each step and ends with a filled-in sample and an outline to copy.

What a business proposal has to do

A business proposal is a document that asks a client to choose you for a piece of work at a price. It is not a brochure and not a contract, although it often becomes the basis of one. If you are unsure which document the client asked for, the guide on proposals, quotes and estimates sets out the differences.

A proposal that gets signed does three jobs:

1. It shows you understood the problem. The client should recognise their own situation, in their own words.
2. It makes the decision easy. Scope, price, timing and terms are clear enough that the person who signs does not need to call you first.
3. It survives being forwarded. The person you met will pass it to a director or to finance. Each reader looks for a different section, often on a phone, without the context of your call.

Everything below serves one of those three jobs. If a section serves none of them, leave it out.

Before you write: three things to find out

The proposal is only as good as the conversation before it. If you cannot answer these three questions, book another call before you open a document.

The problem, in their words. What is not working, what it costs them and why now? Write down the phrases the client used. You will reuse them in the challenge section, and a client who reads their own words back trusts the rest of the document more.

Who decides, and who else reads it. The person on the call may not be the person who signs. Ask: "Who else needs to agree before this goes ahead?" Then write the summary for that person, and send the proposal to the person who can sign it and accept it online.

The budget range. Ask directly. "Projects like this usually land somewhere between this and that. Where does yours sit?" A range lets you shape the options before you price them, rather than discovering after you send it that the whole proposal was out of reach.

Note what you learn on a single page. That page is the raw material for every section below.

The sections, in the order the client reads them

A client reads a proposal as a series of questions: is this for us, did they listen, what will they do, what do we get, when, what does it cost and what do we do now. Put the sections in that order.

For what an agency should put in each part, and what to cut, see the section-by-section agency proposal guide. For web projects, the guide on writing a web design proposal applies the same structure to sitemaps, templates and launch. For other kinds of work, proposal templates by industry shows which parts to change: the pricing unit, what you count in the scope and which proof to show.

Write it in this order, not front to back

Writing the cover first is the slowest way to produce a proposal. The parts that decide the deal are the scope and the price, and every other section depends on them. This order avoids rewriting:

1. Scope. List what the client gets, with a number on each deliverable, and what is out of scope. If you can't count it, you can't price it. The guide on scoping deliverables you can count has wording you can reuse.
2. Price and payment. Price the scope, separate one-off from recurring, and set the payment schedule so it adds up to the total. If the client could reasonably want more or less, offer options rather than one number. See good, better, best: pricing options.
3. Timeline. Turn the scope into phases, and name what you need from the client in each: content, feedback, access.
4. Approach. Explain how you will deliver this scope in three to five steps. Each step says what happens and what the client has at the end of it.
5. The challenge. Now write their problem back to them, using your notes from the call.
6. Why us. Pick the two or three cases that are closest to this client in size or type of work.
7. Summary and cover. Last, because only now do you know what you are proposing.

Working this way also catches a common problem early: a scope that does not fit the budget. You find out at step 2, not after an afternoon of polishing the introduction.

Pricing the proposal

The price section is the one every reader opens. Three rules keep it readable:

• Separate one-off and recurring. A website build and a monthly care plan are different decisions. Show them in different rows or tables, each with its own total.
• Show VAT once and clearly. Give amounts excluding VAT, then the VAT and the total, so finance does not have to work it out.
• Make the schedule add up. The payment schedule must match the total to the cent. A mismatch is the fastest way to lose a finance reader's trust.

If you charge by the day, your proposal price starts from a day rate that covers your costs and non-billable time and an estimate of days. The guide on pricing a website project shows how to work out a floor rate and turn days into a fixed price with a buffer.

A sample proposal, filled in

Below is a complete short proposal for a fictional client. The company, the people and all amounts are made up for this guide: replace them with your own.

Example

Cover. Brightwater Physio: online booking that fills the diary. Proposal for Sarah Lim, practice manager. Prepared by Studio North, 20 October 2026.

Summary. Brightwater's three clinics take nearly all bookings by phone, and the front desk misses calls at peak times. We propose a new website with online booking linked to your existing practice software, built in eight weeks. The one-off investment is €13,400 excluding VAT, with an optional care plan of €240 a month. If you sign by 3 November, we start on 10 November and launch before the end of January.

The challenge. "Patients give up when nobody answers" (Sarah, on our call). The current site was built for a single clinic, does not work well on a phone, and has no way to book.

Approach.

1. Workshop (week 1): we agree the pages, the booking flow and who provides which text.
2. Design (weeks 2–3): homepage and six page templates, two rounds of feedback.
3. Build (weeks 4–7): site, booking link per clinic, contact forms, analytics.
4. Launch (week 8): testing on phones, go-live, a one-hour training session for the front desk.

Scope. Included: homepage and six page templates; up to 30 pages built from your text; booking buttons for three clinics; Dutch and English versions of the five main pages; one hour of training. Not included: writing the page texts, photography, changes to your practice software.

Timeline. Eight weeks from the workshop. We need the page texts by the end of week 4 and feedback on each design round within three working days.

Why us. Two clinic websites with online booking, launched last year (cases attached).

Price.

Item	Type	Price (excl. VAT)
Workshop and sitemap	One-off	€1,800
Design: homepage and six templates	One-off	€5,400
Build, booking links and launch	One-off	€6,200
Total one-off		€13,400

Optional: care plan with updates, backups and one hour of changes a month, €240 a month, cancellable with one month's notice.

Payment schedule.

Moment	Share of the one-off total	Amount (excl. VAT)
On signing	40%	€5,360
Design approved	40%	€5,360
Launch	20%	€2,680
Total	100%	€13,400

VAT is added to each invoice at the rate that applies.

Terms and next step. Changes outside the scope are quoted before we do them. You own the site and its content once the final invoice is paid. This proposal is valid until 17 November 2026. To go ahead, sign on the last page; we will send the workshop invitation the same day.

Notice what the sample does not contain: no history of the agency, no methodology diagram, no list of every tool. Each section answers one question, and a director who reads only the summary knows the outcome, the price, the timing and the next step.

A one-page outline you can copy

Use this as the skeleton for your next proposal. Fill it in using the writing order above, not top to bottom.

Template

Cover: [Client name]: [the outcome in a few words]. For [name, role]. [Your name], [date].

Summary: [Client] needs [outcome] because [problem in their words]. We propose [what you will do] in [timeframe]. The investment is [one-off total] excluding VAT[, plus optional recurring item]. If you sign by [date], we start on [date].

The challenge: "[A phrase the client used]". [Two or three sentences on their situation, goal and obstacle.]

Approach: 1. [Step]: [what happens], [what the client has at the end]. 2. … 3. …

Scope: Included: [deliverable with a number], [deliverable with a number], … Not included: [item], [item].

Timeline: [Phases in weeks]. We need from you: [content, feedback windows, access].

Why us: [Two or three cases close to this client, one line each.]

Price: [Table: item, one-off or recurring, price excl. VAT, total]. Options: [extras or plan choices].

Payment schedule: [Moments and amounts that add up to the total.]

Terms: [Changes, ownership, notice period.] Valid until [date].

Next step: [One action] by [date].

Short or long: what fits the request

Length follows the request, not a target. An unsolicited proposal to a client who asked "what would it cost?" can be a few pages: summary, scope, price and next step. A response to a formal request for proposal must answer every question in the order the client set, even if that makes it longer than you would like. Read the request twice, list its questions, and use their numbering in your headings so the evaluator can tick each one off.

Whatever the length, the summary and the price page must work on their own. Those are the two pages people forward.

Mistakes that lose the deal

• Starting with yourself. If the first page is about your agency, the client has to wait to find out whether you listened.
• A scope without numbers. "A modern website" invites a dispute. "Homepage and six page templates" does not.
• One price, no context. A single total with no breakdown makes the client compare you only on price. Options and a clear scope give them something else to compare.
• A schedule that does not add up. Finance will notice before you do.
• No date on anything. Without a start date and a validity date, nothing pushes the decision forward.
• Unreadable on a phone. Wide tables, tiny text and attachments inside attachments get skipped.
• A brand that changes from page to page. If several people build proposals, agree on one look. The guide to on-brand proposals without a designer shows how.

Checklist before you send

• The cover names the client and the outcome.
• The summary works on its own, for the person who signs.
• The challenge quotes the client.
• Every deliverable has a number, and there is an out-of-scope list.
• The timeline names what you need from the client.
• One-off and recurring prices are separate, with VAT and totals.
• The payment schedule adds up to the total.
• There is one next step, a start date and a validity date.
• You have read it on a phone.
• You know when you will follow up, and what you will say. The guide on when and how to follow up on a proposal has wording for each day.

This is general information, not legal or tax advice. For your situation, ask a lawyer or accountant.

How Propozit helps

Propozit builds this structure as a branded slide deck instead of a document. In the deck editor you have 19 slide types beside a live preview, fitted to the page, in English, Dutch, French or German, so the cover, challenge, scope, timeline, cases, pricing and agreement each get their own slide. See the slide types in the deck editor.

Prices come from your own price list. In the deck you can offer options, plan choices, deals and payment plans the client picks, with the days within which invoices are due and the VAT rate that fits the client, and the client ticks options and picks plans with the totals updating as they go; see pricing the client can adjust. When they agree, they sign in the deck, drawn or typed, and both sides get a signed PDF (signing). You can also describe the proposal in a few sentences: the proposal AI drafts the deck from your own template, price list and cases, and never makes up a price. Check the draft before you send it.

Propozit is in early access and free to start.