B2B Sales Proposal Writer
Added Sep 29, 2026
About This Prompt
This prompt has Claude turn your discovery notes into a B2B sales proposal built around the buyer's own problem. It restates the situation in the prospect's words, quantifies what the problem costs using only figures from your notes with their sources, maps each part of your solution to a stated problem, and lays out your pricing options with first-year totals. It closes with success metrics the prospect already tracks and next steps that end in a single decision. Claude is told not to invent case studies, statistics, testimonials, or features, and to list anything the proposal needs that your notes are missing. It is written for readers who were not on the sales calls, such as an executive who signs off.
Variables to Customize
[PROSPECT]
The prospect organization
Example: a 35-person accounting firm
[DISCOVERY_NOTES]
Your notes from discovery, with who said what and where each number came from
Example: - Managing partner: "Tax season is the only time we can't take new clients." - Each of the 22 client-facing staff spends about 6 hours a week from January to April chasing clients for missing documents (operations manager's estimate). - They turned away about 40 new clients last season. - An average new client is worth roughly $1,800 a year in fees (managing partner). - Reminders are sent by hand; documents arrive five different ways. - They want a decision by November 15 so it is live before January.
[OFFER_AND_PRICING]
What you are proposing, with every pricing option and term
Example: Client document portal with automated reminders. Option A: portal and reminders, $1,200/month. Option B: adds e-signature and intake forms, $1,650/month. One-time setup $3,000. 12-month term.
[READERS]
Who will read and decide
Example: the managing partner and the operations manager
[LENGTH]
The maximum length
Example: two pages
Tips for Best Results
- Write down who said each number during discovery. A figure attributed to the prospect is far more persuasive to them than one you estimated.
- Check the "missing" list before sending. It usually shows the question you should have asked in discovery, and it is better to ask it now.
- Send the proposal after a call where you walk through it together, not instead of one.
Example Output
**1. Where you are** Tax season is "the only time we can't take new clients." Reminders go out by hand, and documents arrive five different ways. **2. What it is costing you** - Time: each of your 22 client-facing staff spends about 6 hours a week chasing documents from January to April (operations manager's estimate). Over roughly 17 weeks, that is about 2,244 staff hours. (Calculation; assumes 17 weeks.) - Growth: you turned away about 40 new clients last season. At roughly $1,800 in annual fees each (managing partner's figure), that is about $72,000 a year in fees. (Calculation.) **3. What we propose** - One portal for every document → replaces the five ways documents arrive today. - Automated reminders → replaces reminders sent by hand. **4. Investment** (12-month term) | | Option A | Option B | |---|---|---| | Includes | Portal and automated reminders | Option A plus e-signature and intake forms | | Monthly | $1,200 | $1,650 | | One-time setup | $3,000 | $3,000 | | First-year total | $17,400 | $22,800 | **5. Measuring success** Weekly hours spent chasing documents, and new clients accepted during tax season. **6. Next steps** Decide between Option A and Option B by November 15, so the portal is live before January. **Missing from your notes** - Nothing in your notes mentions signatures or intake forms, so Option B's extras don't map to a stated problem. Confirm they matter before recommending it. - Who owns setup on the firm's side, and our kickoff date.
Quick Info
- Tool
- Claude
- Category
- Writing
- Difficulty
- intermediate
- Variables
- 5
- Type
- text