UK proposal writing: structure, software and checks

What to take away

Good UK proposal writing treats a business proposal as a decision document: problem, outcome, scope, price, next step.
A repeatable format is more useful than decoration. Reuse one structure and adapt the content.
Quote in pounds sterling, say whether figures include VAT, and label any estimate.
Keep paragraphs to one point and sentences short enough to read on a phone.
For public-sector work, check the buyer's tender documents and, where relevant, the Find a Tender service; follow the process the buyer specifies.

Write for the reader who has to approve it

Most proposals fail because they describe the supplier. The buyer is comparing you with two or three rivals, and often has to justify the choice to someone else. Give them the words to do that.

So open with the client's problem in their own language, then state the outcome you will deliver and the price. Your credentials belong further down, and only as evidence for the claims above.

A proposal that answers the buyer's internal questions travels further than one that only answers theirs.

The business proposal format UK buyers expect

A familiar structure reduces the effort a buyer has to make. This one suits most service and consultancy work sold to UK organisations, and it keeps the price visible early.

UK Proposal Structure at a Glance

Cover and summaryoutcome and price, 1 page
Understanding of the briefsituation and success, 1-2 pages
Scope and deliverableswhat you will not do, 2 pages
Timeline and responsibilitiesstages and sign-off, 1 page
Price and paymentfees, VAT, invoicing, 1 page
Terms and next stepvalidity and acceptance, 1 page

Section	What goes in it	Working length
Cover and summary	Client name, date, your contact, one paragraph on the outcome and price	1 page
Understanding of the brief	Their situation, the constraint, what success looks like	1 to 2 pages
Scope and deliverables	What you will do, what you will not do, assumptions	2 pages
Timeline and responsibilities	Stages, dates, who signs off what	1 page
Price and payment	Fees in pounds sterling, VAT position, invoicing schedule	1 page
Terms and next step	Validity period, acceptance process, named contact	1 page

Examples of dedicated proposal software include Better Proposals, PandaDoc, Proposify and Qwilr. When deciding whether to use one or Word, compare the workflow with your reusable structure and the buyer's review process; our guide to proposal software versus Word sets out the choice.

Draft before you edit

Separating drafting from editing saves more time than any writing tip. Use the numbered sequence below to keep the work orderly.

Six Drafting Passes

Write the price and outcome first
Capture the client's own words
Set out scope and exclusions
Add timeline with named owners
Insert comparable work and references
Edit for length, then read aloud

Get the money and legal details right

Quote in pounds sterling and state whether each figure includes VAT. VAT treatment depends on what you sell; if converting a foreign-currency amount for customs or VAT, use the exchange rates published by HMRC. Check the correct VAT treatment for your supply rather than assuming one rate applies.

Money and Legal Details

Quote in pounds sterling
State whether figures include VAT
Check HMRC VAT rates
Limited companyuse registered name
Sole traderstate status plainly
Add a data storage and deletion paragraph

Company details matter too. A limited company should use its registered name and number, and check them against the Companies House register. The Companies Act 2006 sets out the framework that governs how companies are formed and run. A sole trader should say so plainly and trade under the name they actually use, as the guidance on becoming a sole trader explains.

If the client will pass you personal data during the project, explain how you will handle it in line with the UK GDPR and Data Protection Act 2018. The Information Commissioner's Office (ICO) publishes guidance; say how you will store and delete the data.

Prove the claims you make

Every claim in a proposal invites a question. If you say you have delivered similar work, name the sector and the size of the project, not the client's confidential details.

Case studies work best in one paragraph: the starting position, what you changed, and the measurable result, with the source and date attached.

Statistics need a named source and a date. An unsourced number is worse than no number, because it invites the buyer to check it.

Check it before you send

Read the document once for facts and once for tone. Confirm the client's name is spelled correctly, the figures add up, and every date is achievable.

Then apply the length test: if a section does not help the buyer decide, cut it. Proposals get shorter as your confidence grows, not longer.

If you send fewer than ten proposals a year, a template may be all you need; our guide to proposal software or just a template sets out where the break-even sits.

Save the sent version and note the date. If the buyer comes back in three months, you want the exact figures you quoted, not a guess.

Common questions

How long should a UK business proposal be?

Six to ten pages suits most service work, with the price visible in the first two. Long appendices are fine if the main document stands alone.

Should I show prices in the first proposal?

Yes, unless the buyer has asked for a separate commercial envelope. A price-free proposal usually means another round of emails and a slower decision.

What company details should appear on a proposal?

Your trading name, registered name and number if you are a limited company, address, and a named contact. Add your VAT number once you are registered.

Can I send the proposal as a PDF?

Almost always. A PDF keeps the layout fixed and opens on any device. Send an editable version only if the buyer's process requires it.