How to Write Proposals and Quotes with AI

The job you do after the job

You spent ninety minutes at a client's house measuring up, listening, working out what they actually need. That part you enjoy. Then at nine in the evening, with the telly on and your laptop balanced on a cushion, you have to turn all of it into a document that sounds professional and does not undersell you.

That second job is where most quotes go to die. Not because you cannot write them, but because you are tired, and a quote that goes out four days late loses to one that went out the same afternoon.

This is one of the best uses of AI in a small business. You already know what to say. You just need somebody to type it up neatly while you eat your dinner.

Your best proposal is already written

Here is the trick almost nobody uses. Somewhere in your email or your documents folder is a proposal that won. Real client, real money, real yes. That document knows things: how you describe your work, which objections you head off, what your terms look like, how formal you are.

Feed it to the AI as the model. You are not asking for a proposal. You are asking for another one like that one.

Below is a proposal I wrote that won the work. Study its structure, tone and
level of detail. Write a new proposal in the same style for this job.
CLIENT AND WHAT THEY WANT: [who they are, what they asked for, what they said matters]
WHAT I WILL DO: [the steps, in your own rough words]
NOT INCLUDED: [things people assume are included but are not]
TIMELINE: [days or dates]
PRICE: [figure and how it is structured]
RISKS OR UNKNOWNS: [anything that could change the price]
MY WINNING PROPOSAL:
[paste it]

Turning the conversation into the document

Most of what belongs in a quote was said out loud, on site, in a conversation you half remember. Do not try to recall it neatly. Just dump it.

Type or dictate everything you remember, in any order, badly spelled, and let the AI sort it out. Voice notes work brilliantly here: talk for two minutes in the van, paste the transcript in.

Here are my rough notes from a site visit. They are out of order and repetitive.
Turn them into a clear quote with these sections: what you asked for, what I will
do, what is included, what is not included, timeline, price, how to say yes.
Plain English, no corporate padding. Keep every number exactly as I wrote it.
If anything important is missing, list your questions at the end instead of guessing.
MY NOTES:
[paste or dictate everything]

That last line matters more than the rest of the prompt. An AI asked to fill a gap will fill it, confidently and wrongly. Told to ask instead, it hands you a short list of the things you forgot to check, which is genuinely useful.

Scope is where the money leaks

The line that saves you the most money is the one headed "not included". Small businesses lose weekends to jobs that grew quietly because nobody wrote down where they stopped.

AI is good at this, because it is thorough in a way that a tired human at nine in the evening is not.

Here is a quote I am about to send. Read it first as a cautious client, then as
an experienced tradesperson reviewing a colleague's work.

List anything a client could reasonably assume is included but is not stated.
List anything that could push the job over time or budget.
Suggest three lines for a Not Included section.
Do not rewrite the quote. Just give me the lists.
MY QUOTE:
[paste it]

Where a professional comes in

Payment terms, cancellation clauses, deposits, liability, what happens if the client goes quiet halfway through: these show up in every proposal and they are contract territory. AI can give you a readable first draft and explain what a clause is trying to do, which is a fine place to start.

It is not a substitute for a solicitor or an accountant. If a document creates real obligations or real money is at stake, get the terms checked once by a professional, then reuse those checked terms forever. One conversation, permanently useful.

The send-it check

Before anything leaves your outbox: is every number yours, is the client's name right, does the scope say where you stop, and does it sound like you rather than like a company with a marketing department. Read it out loud. If you would not say it on a doorstep, cut it.