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How to Write a Business Plan with AI (From Executive Summary to Financial Narrative)
Adam Jellal
April 15, 2026
A business plan is required for investor funding, bank loans, government grants, franchise applications, and many strategic partnerships. It's also the most structurally complex document most non-specialist professionals will ever need to write.
The challenge isn't the writing — it's that each section requires different thinking: market analysis requires research, the financial narrative requires data, the operations section requires operational knowledge, and the executive summary requires synthesis of everything. Most people stall because they try to write linearly from section 1 to section 8 and run out of momentum.
AI tools solve the structural problem: they provide the right section structure for each component, generate working drafts from the information you provide, and make the iterative process of producing each section faster. The strategic thinking, the market research, and the financial data are still yours — AI handles the writing and structure.
This guide covers how to produce each major section of a business plan with AI, using a section-by-section approach that's significantly more effective than trying to produce the whole document at once.
Before You Write: What You Need to Know First
AI tools produce better business plan content when you've done the foundational thinking first. Before prompting anything, have answers to:
The core value proposition: what does the business do, for whom, and why is it better or different from existing alternatives? One clear sentence.
The target market: who specifically buys this? Not "small businesses" but "service businesses under 10 employees who don't have dedicated marketing staff." Specificity matters.
Revenue model: how does the business make money? Subscription, transactional, project-based, commission, freemium-to-paid?
Competitive differentiation: what do existing alternatives fail at, and how does this business address that gap specifically?
Key financial figures: startup cost estimate, projected monthly revenue, gross margin estimate, break-even projection. Even rough estimates are better than none — business plans with no numbers aren't credible to lenders or investors.
With these foundations in place, each section of the plan becomes a writing exercise rather than a thinking exercise.
Section 1: Executive Summary (Write Last)
Despite appearing first in every business plan, the executive summary is most effectively written after all other sections exist. It synthesizes rather than introduces.
An executive summary covers: business concept in one sentence, market opportunity, what makes the business distinctive, business model, key financial projections, what is being requested (funding amount, type), and use of funds.
Use Typely's AI Summarizer on your completed sections, then use Typely's AI Chat to synthesize into executive summary format:
"Write an executive summary for a business plan. Business concept: [one sentence description]. Market opportunity: [describe the size and the gap being addressed]. What makes it distinctive: [your key differentiation]. Business model: [how it makes money]. Financial projections: [key figures — year 1 revenue, gross margin, break-even]. What we're seeking: [funding amount and type]. Use of funds: [brief allocation]. Tone: compelling and investor-appropriate. Lead with the opportunity, not the company history. Length: 300-400 words."
Section 2: Business Description
The business description is the section that answers: what exactly is this business, and what does it do?
Use Typely's AI Chat:
"Write a business description section for a business plan. Business name: [name]. Type of entity: [LLC / sole trader / corporation / etc.]. Founded: [date or 'being established']. Location: [city, region, or 'operating online']. What the business does: [describe the product or service in plain language]. Business model: [how it generates revenue]. Stage: [pre-revenue / early revenue / growth stage]. Mission statement: [your mission or the problem the business solves]. Tone: professional and clear. Length: 200-300 words."
Section 3: Market Analysis
This section demonstrates that you understand the market you're entering — its size, its dynamics, the competitors operating in it, and where your opportunity fits.
The market analysis typically includes: total addressable market (TAM) size, target segment description, market trends supporting the opportunity, competitive landscape, and competitive positioning.
Note on AI and market data: AI can provide a structure for your market analysis and general background knowledge, but specific market size figures, growth rates, and competitor data must come from current research sources. For market data: industry association reports, government statistics, Statista, IBISWorld, or recent news coverage. AI-generated market figures should be verified before including them in a document presented to investors or lenders.
Use Typely's AI Chat to structure the analysis:
"Write a market analysis framework for a business in [industry/sector] targeting [specific customer segment]. The framework should cover: (1) overview of the market, (2) target customer segment description and needs, (3) market size indicators [I will fill in verified data], (4) key market trends supporting this opportunity, (5) competitive landscape overview. Tone: analytical and professional. Leave [BRACKET] placeholders where I need to insert verified figures."
Fill in the bracketed figures from your own research after generating the structure.
Section 4: Products and Services
This section describes specifically what the business offers, how it works, and what makes it valuable to customers.
Use Typely's AI Chat:
"Write the products and services section of a business plan. What is offered: [describe the product or service in detail]. How it works: [describe the delivery mechanism or the customer experience]. Key benefits to customers: [list 3-5 specific value points]. Pricing: [describe pricing structure or range]. Development stage: [existing / in development / piloted / scaling]. Any intellectual property or proprietary elements: [describe or 'none']. Competitive advantage: [what the product does better than alternatives]. Tone: professional and specific. Length: 300-400 words."
Section 5: Marketing and Sales Strategy
This section answers: how will customers find the business, and how will they be converted to paying customers?
Use Typely's AI Chat:
"Write the marketing and sales strategy section of a business plan. Target customer: [detailed description]. Where they can be reached: [channels — search, social, referral, direct sales, events, etc.]. Marketing approach: [describe your primary customer acquisition strategy]. Sales process: [how you convert leads to customers]. Customer retention approach: [what keeps customers coming back]. Key marketing metrics that indicate success: [list 3-5]. Budget allocation overview: [rough % or priority allocation]. Tone: strategic and specific. Length: 300-400 words."
Section 6: Operations Plan
The operations section describes how the business actually runs day-to-day — production, delivery, technology, team, and key processes.
Use Typely's AI Chat:
"Write the operations section of a business plan for a [type of business]. Key operational activities: [describe the main processes — production, service delivery, customer support, etc.]. Team: [current team members and roles, plus any key hires planned]. Technology and tools: [key systems or platforms the business runs on]. Location and facilities: [describe or 'remote / no fixed location']. Key operational risks and mitigation: [describe 2-3 operational risks and how they're managed]. Tone: professional and practical. Length: 250-350 words."
Section 7: Financial Plan and Projections Narrative
The financial plan section of a business plan includes two components: the actual financial projections (spreadsheet with revenue, costs, cash flow) and the narrative that explains and contextualizes those numbers.
The projections themselves must be built by the business owner based on real assumptions — AI cannot fabricate realistic financial projections and should not be asked to. The narrative, however, is where AI provides significant value.
Use Typely's AI Chat to write the financial narrative after you've built the numbers:
"Write the financial plan narrative for a business plan. My key financial assumptions: [describe the assumptions behind your projections — e.g., average transaction value, monthly customer growth rate, gross margin %]. Year 1 projected revenue: [figure]. Year 2: [figure]. Year 3: [figure]. Break-even point: [timeframe]. Key cost drivers: [describe your main cost categories]. Startup capital required: [figure]. Funding sought: [amount and type — debt / equity]. Use of funds: [how the funding will be allocated]. Tone: clear, credible, and investor-appropriate. Length: 300-400 words."
Section 8: Risk Analysis
Every business plan needs an honest risk section. Investors and lenders are more suspicious of plans that identify no risks than of plans that identify real ones with credible mitigation strategies.
Use Typely's AI Chat:
"Write a risk analysis section for a business plan in [industry]. Business model: [brief description]. Identify 4-6 significant risks across these categories: market risk, operational risk, financial risk, competitive risk, and regulatory risk where applicable. For each risk: (1) describe the risk specifically, (2) rate it as high/medium/low likelihood and impact, and (3) describe the mitigation strategy. Tone: honest and analytical. Length: 300-400 words."
Polishing the Complete Plan
Once all sections are drafted, run Typely's Grammar Checker on the complete document. Business plans presented to investors, lenders, or grant bodies are scrutinized carefully — errors damage credibility disproportionately in this context.
Use Typely's AI Chat for a consistency review: "I have a complete business plan draft. Check for: (1) any section where the financial figures are inconsistent with other sections, (2) any section where the target market description contradicts other descriptions, (3) any language that's inconsistent in tone across sections."
The full business document writing toolkit is available free at usetypely.com.
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