Including 3-year financials.
This is what $5K consultants used to charge for.
The prompt:
- You are an expert business strategist and financial modeler. Given the following inputs:
- – Business name: {NAME}
- – Industry / product description: {DESCRIPTION}
- – Target customers: {TARGET_CUSTOMERS}
- – Key assumptions (growth rate, conversion, ARPU, costs): {ASSUMPTIONS}
- Produce a full investor-ready business plan with these sections:
- 1) Executive summary (one paragraph)
- 2) Company overview (mission, value prop, product)
- 3) Market analysis (TAM/SAM/SOM estimates, target customer personas, top competitors, trends/opportunities)
- 4) Business model & monetization (pricing, unit economics)
- 5) Go-to-market: marketing & sales strategy (channels, sample 90-day plan)
- 6) Financial projections: 3-year P&L, cash flow summary, and break-even analysis with clear assumptions and formulas (present numbers in table format)
- 7) Risk analysis and mitigation
- 8) Implementation timeline with milestones for 12 months (quarterly OKRs).
- Keep the plan concise and formatted with headings. If any input is missing, note the assumption you used.
- “`
- What it generates:
- Everything investors want to see:
- ✅ Executive summary
- ✅ Market analysis (TAM/SAM/SOM)
- ✅ Competitor landscape
- ✅ Unit economics
- ✅ 90-day GTM plan
- ✅ 3-year P&L with tables
- ✅ Cash flow projections
- ✅ Break-even analysis
- ✅ Risk mitigation
- ✅ 12-month implementation roadmap
- In under a minute.
- How to use it:
- Fill in the brackets:
- {NAME} = Your company name
- {DESCRIPTION} = “AI-powered accounting software for freelancers”
- {TARGET_CUSTOMERS} = “Freelancers earning $50K-$200K/year”
- {ASSUMPTIONS} = Your numbers
- Pro tip for assumptions:
- Paste a simple table after the prompt:
- “`
- Year 0 revenue: $0
- Monthly growth rate: 5%
- CAC: $100
- ARPU: $30/month
- Churn: 5%/month
- Operating costs: $10K/month
ChatGPT will use these to build realistic projections.
What makes this prompt powerful:
Most people ask ChatGPT: “Write me a business plan.”
And get generic garbage.
This prompt is structured like a consultant would think:
- Clear role assignment (“expert business strategist”)
- Specific inputs required
- Exact output format
- Financial modeling instructions
- Assumption handling
It forces rigor.
The financial projections are legit:
ChatGPT will:
- Calculate monthly recurring revenue
- Project customer acquisition
- Model churn impact
- Estimate cash burn
- Determine break-even month
With actual formulas shown.
You can verify the math.
Adjust the assumptions.
Re-run instantly.
Where this actually helps:
Fundraising prep: Get the structure right before hiring a consultant
Pitch deck support: Pull sections directly into slides
Internal planning: Align team on growth assumptions
Accelerator applications: Most want a basic plan
Reality check: See if your idea makes financial sense
Where it falls short:
It can’t:
- Validate your market research
- Know your actual competitors
- Predict real conversion rates
- Replace due diligence
It’s a starting point, not a finished product.
But it’s a REALLY good starting point.
The old way:
Hire consultant: $5K-$15K Wait time: 2-4 weeks Revisions: Painful Ownership: You paid but they “own” the model
The new way:
Paste prompt: Free Wait time: 60 seconds Revisions: Instant Ownership: 100% yours
Customizing for different business types:
SaaS: Add “focus on MRR, LTV:CAC ratio, and expansion revenue”
E-commerce: Add “include inventory costs, shipping margins, and return rates”
Marketplace: Add “two-sided growth dynamics and take rate optimization”
Services: Add “utilization rates and service delivery costs”
Just append to the prompt.
The iteration workflow:
- Run the prompt with initial assumptions
- Review the output
- Adjust assumptions based on reality
- Re-run in 30 seconds
- Repeat until numbers make sense
This is how you pressure-test your idea.
Real example outputs:
I tested this with:
“AI resume builder for job seekers”
It generated:
- TAM of $2.3B (validated against real data)
- Competitive analysis of 8 players
- Pricing strategy ($29-$99/month)
- Break-even at month 14 with assumptions shown
Took 45 seconds.
Why this matters now:
Investors are seeing 100+ decks per week.
The ones with clear financials get meetings.
The ones with “hockey stick projections” and no math get ignored.
This prompt forces you to:
- Think through unit economics
- Model realistic growth
- Identify risks early
- Show you’ve done the work
Even if AI helped.
The limitation nobody mentions:
ChatGPT will be optimistic.
It assumes:
- Conversion rates work
- Churn stays low
- Growth is consistent
- Competition doesn’t react
Real life is messier.
So multiply your timeline by 1.5x.
Cut your revenue projections by 30%.
That’s closer to reality.
The ethical question:
Should you tell investors AI generated this?
My take: No, because you’re not claiming AI did the thinking.
You:
- Provided the assumptions
- Validated the logic
- Own the strategy
AI just formatted it faster than Excel would.
That’s fine.
Where to go from here:
Use this prompt to:
- Draft your initial plan (60 seconds)
- Validate assumptions with real research
- Adjust numbers based on market data
- Share with advisors for feedback
- Refine before showing investors
It’s a tool, not a shortcut.
But it’s a REALLY good tool.
The future of business planning:
AI handles structure and math.
Humans handle strategy and validation.
The founders who win will use both.
The ones who think AI replaces thinking will fail.
Return to Bomb Alley 1982 – The Falklands Deception, by Paul Cardin
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