A business plan doesn't have to be a 40-page document no one reads. For most small businesses, a clear, well-reasoned plan of 10–15 pages is enough to secure a loan, attract a partner, or simply think through your business model rigorously. AI tools can help you write every section in a fraction of the time it used to take. Here's how.

What a Strong Business Plan Needs

A solid small business plan covers six core areas:

  1. Executive Summary
  2. Business Description and Market Opportunity
  3. Products and Services
  4. Market Analysis
  5. Marketing and Sales Strategy
  6. Financial Projections
ChatGPT and Claude can draft all six. You provide the facts; the AI provides structure, language, and professional presentation.

Before You Start: The Information Gathering Prompt

Open ChatGPT and run this first:

"I'm creating a business plan for a [type of business] in [city/region]. I'm going to give you information and you're going to help me write each section. First, ask me the 10 most important questions you need answered to write a strong plan for this type of business."

ChatGPT will identify the key facts it needs — market size data, pricing, target customer profile, startup costs, competition, and more. Answering these questions forces you to think through your business before writing a word. This is valuable regardless of the AI.

Section 1: Executive Summary

Write this last, even though it appears first. After completing all other sections, prompt:

"Based on everything we've discussed about my [business type], write a compelling 300-word executive summary. It should cover what the business does, who it serves, the market opportunity, the business model, and the financial goal. Write for a potential bank lender. Professional but direct."

Section 2: Business Description

Prompt: "Write a 400-word business description for my [business name], a [type of business] in [location]. Include: what we do, who we serve, how we make money, what makes us different from competitors, and why now is the right time for this business. Facts: [insert your specifics]."

Section 3: Products and Services

Prompt: "Write a products and services section for my business plan. We offer: [list your offerings with brief descriptions and pricing]. Describe each offering, explain the customer benefit, note our pricing model, and explain our gross margin. About 400 words total."

Section 4: Market Analysis

This section benefits from your own research, but ChatGPT helps you frame it:

"Help me write a market analysis section for a [business type] targeting [customer segment] in [region]. I'll provide you with these market facts: [insert stats from SBA.gov, IBISWorld free reports, or your own research]. Help me contextualize this data into a persuasive argument for market opportunity. About 500 words."

Section 5: Marketing and Sales Strategy

Prompt: "Write a marketing and sales strategy section for my business plan. Our target customer is [describe]. Our primary marketing channels will be [list channels]. Our sales process is [describe]. Our goal is to acquire [X] customers in year one at an average value of [$Y]. About 400 words."

Section 6: Financial Projections

This is where AI needs the most human input, but it can still help:

Prompt: "Help me write the financial projections narrative for my business plan. Here are my assumptions: [list startup costs, monthly revenue assumptions, cost of goods, operating expenses, and break-even target]. Write the narrative explanation (not the actual spreadsheet numbers) in professional business plan language. About 300 words."

Build the actual financial spreadsheet in Google Sheets or Excel — AI can help you structure it, but you need to own the numbers.

Formatting and Polish

Once you have all six sections drafted, use this prompt:

"Review this business plan draft and suggest any gaps, inconsistencies, or sections that need strengthening. Also suggest any data or evidence I should add to strengthen my case."

This gives you an AI review before you send it to a lender or partner.

Time Comparison

ApproachTime to First Draft
Writing from scratch40–80 hours
Using AI tools8–15 hours
Professional writer$3,000–$8,000

Next Steps

Block four hours this weekend and run through each prompt section by section. By the end, you'll have a complete first draft. Spend a second session refining it with your own knowledge and real numbers. The result won't be perfect — no business plan is — but it will be solid, professional, and something you can put in front of a banker or investor.

Ready to Put AI to Work in Your Business?

Explore more practical, no-fluff AI guides for small business owners at AI Biz Guide — updated regularly with tools that actually deliver results.