As of 13 August 2026, AI can write a business proposal.

What to actually do

1. Hand it to a person

   The route this page recommends

   A person who owns the outcome does this end to end, worth it when the failure is dear.

2. Use a tool built for this

   Second choice

3. Do it yourself

   The distant third

   A chat interface, chat-fluent skill, and roughly 30 minutes until you can act on the result.

   How to actually do it

   1. Open the client brief, invitation to tender or request for proposal and copy out the decision-maker, evaluation criteria, required sections, word limit and submission deadline.
   2. Gather your current service description, relevant case studies, staff qualifications, delivery timetable, price list, VAT position, payment terms and standard assumptions or exclusions.
   3. Paste the prompt into ChatGPT, Claude or Gemini, replace every bracketed slot with your verified information, and attach the source documents or notes.
   4. Ask the model to draft the proposal and the fact-check list, then copy the result into your normal document template.
   5. Compare every name, date, price, VAT statement, deliverable, case-study result and commitment against the source documents and current price list, replacing any unsupported wording with [TO CONFIRM].
   6. Ask a colleague who understands the offer to check that the scope is deliverable, the risks are visible and the proposal answers the client’s evaluation criteria.
   7. Apply your organisation’s approval process, insert the correct contact and submission details, save the final version, and send it through the client’s stated channel.

   Prompt

   Write a professional UK business proposal using the information below. Produce a clear document for the stated decision-maker, with these sections: executive summary, understanding of the need, proposed solution, deliverables, approach and timetable, responsibilities, assumptions and exclusions, risks and mitigations, measurable outcomes, pricing and payment terms, and next steps. Use only the facts, prices, dates and commitments supplied below. Do not invent clients, results, qualifications, regulations, market figures or delivery promises. Where information is missing, write [TO CONFIRM] rather than guessing. Keep the tone plain, specific and credible, not salesy. Make the value to the client clear without making claims that cannot be evidenced. Put the proposal in a format that can be pasted into a document, with useful headings and tables where they improve clarity. After the proposal, provide a short fact-check list showing every item I must confirm before sending.
   
   Decision-maker and organisation: [INSERT]
   Client need or brief: [INSERT]
   Our organisation and relevant experience: [INSERT]
   Proposed solution and deliverables: [INSERT]
   Evidence or case studies we may use: [INSERT]
   Scope, exclusions and client responsibilities: [INSERT]
   Timeline and key dates: [INSERT]
   Pricing, VAT position and payment terms: [INSERT]
   Risks, dependencies and assumptions: [INSERT]
   Required length, format and submission deadline: [INSERT]
   Source documents or notes: [PASTE OR ATTACH]

   Open it prefilled in ChatGPT or Claude, or copy it into Gemini, which takes no prefill link.