You can write a solid business plan with Claude in an afternoon: give it real context about your business, build the plan one section at a time, make it flag every number it doesn't have instead of inventing one, then have it critique the draft like a skeptical lender. This guide gives you the exact prompts for each step, a worked example from start to finish, and an honest take on when a dedicated planning tool is the better choice.
Why you can trust this guide
Before this site, I founded Plannit AI, an AI business plan generator. Over 50,000 business plans were created on it. Watching that many AI-written plans come out the other end taught me where they work and where they quietly fall apart:
- The input decides the plan. Owners who typed one line ("a coffee shop in Chicago") got a plan that could describe any coffee shop. Owners who gave real detail about their customers, their edge, and their budget got something a lender could actually read.
- Invented numbers are the most common failure. AI is very good at producing a market size or growth rate that sounds sourced. That one made-up figure is usually the thing that sinks the plan's credibility.
- The financials drift away from the story. A plan that says "we'll hire two baristas" and a spreadsheet budgeting for one is a red flag for a lender. You have to check that the words and the numbers agree.
Everything below is built around those three lessons.
TL;DR
- Claude is strong at the writing and reasoning part of a business plan: structure, drafting, editing, and stress-testing your logic.
- Start with a detailed description of your business, then build the plan one section at a time, reviewing each before moving on.
- Tell Claude to mark missing data as [NEEDS DATA] instead of inventing it. That one instruction turns hallucinated statistics into a to-do list.
- Supply the real numbers yourself (or with an accountant), and have Claude build the spreadsheet and write the narrative around them.
- If you want built-in forecasting, lender-style plan review, and pitch decks in one place, a dedicated tool like LivePlan (opens in a new tab) is worth a look.
- To get fluent with this way of working, take the free Claude Cowork course.
What goes in a business plan
The U.S. Small Business Administration describes two formats in its guide to writing a business plan (opens in a new tab):
| Format | Best for | Typical sections |
|---|---|---|
| Traditional plan | Bank loans, SBA loans, most investors | Executive summary, company description, market analysis, organization and management, products or services, marketing and sales, funding request, financial projections, appendix |
| Lean startup plan | Your own planning, early testing of an idea | One page: value proposition, customer segments, channels, key activities and resources, partners, costs, revenue streams |
The SBA notes that lenders and investors commonly ask for the traditional format. This guide follows that structure. If the plan is only for you, ask Claude for the lean version and stop there.
Step 1: Give Claude the full picture
The biggest mistake is opening with "write me a business plan for a coffee shop." Claude doesn't know your business until you tell it. Dump everything you know into the first message. Messy is fine:
Here's my business. I'm opening a specialty coffee shop in the Lincoln Park neighborhood of Chicago. Target customers are remote workers and students. My edge is a quiet, laptop-friendly space with reliable wifi and high-end espresso. Startup budget is about $120k: $70k from savings and a $50k loan I'm applying for. I have one business partner who runs operations; I handle marketing. We plan to open in spring 2027. Nearby competitors are two Starbucks and one independent café that's loud and laptop-unfriendly. This plan is for the bank.
A useful checklist for that first message:
- What you sell and who buys it
- Why customers will choose you over the alternatives
- Location, timeline, and team
- How much money you have, how much you need, and where it's coming from
- Who the plan is for (bank, investor, or yourself)
If you'll write several documents for this business, save that description once so you don't retype it. A Claude Project keeps it attached to every conversation, and the guide on using Claude for work shows how to build a reusable business profile.
Step 2: Set the ground rules and get an outline
Before any drafting, tell Claude the purpose and the rules. This is the prompt I'd start every plan with:
You are an experienced small business advisor helping me write a business plan to [secure a $50k bank loan / raise from investors / clarify my own strategy]. Rules for this whole conversation:
- Ask me up to eight questions first to fill gaps in what I've told you.
- Then give me a section-by-section outline tailored to the goal. No filler sections.
- We'll write one section at a time, and you'll wait for my review before moving on.
- Never invent statistics, prices, or market figures. If a section needs a number I haven't given you, write [NEEDS DATA: what's missing] instead.
The purpose shapes everything. A loan plan leans on cash flow and your ability to repay. An investor plan leans on market size and growth. A plan for yourself can skip the formalities.
Here's the kind of response you should get back (shortened):
Before I outline the plan, a few questions so the bank version holds up:
- Have you signed a lease, or are you still choosing a location? What's the expected monthly rent?
- What's your planned average ticket (what one customer spends per visit)?
- Will you serve food, or drinks only?
- What are your planned hours and how many staff per shift?
- Do you or your partner have café or hospitality experience?
- What collateral or personal guarantee can you offer the lender?
Answer the questions, review the outline, and adjust it before you write a single paragraph.
Step 3: Write the plan section by section
Don't ask for the whole plan at once. You'll get something shallow. Build it one section at a time.
Company description
Draft the company description: what we do, the problem we solve, our mission, our legal structure (LLC, two members), and what makes us different. Use only what I've told you. Under 300 words.
Market analysis
This is where invented numbers sneak in, so you supply the data. Good free sources, all listed on the SBA's market research page (opens in a new tab):
- U.S. Census Business Builder (opens in a new tab) for local population, income, and how many similar businesses exist in your area
- Bureau of Labor Statistics (opens in a new tab) for wage rates when you budget for staff
- Your own legwork: competitor menus and prices, foot traffic you counted, quotes from suppliers
If you're on a paid Claude plan, you can also turn on web search (opens in a new tab), which shows a citation for every source it uses. Click through and check each one. A cited page can still be out of date or about the wrong city.
Then paste your figures in:
Here is the market data I've gathered: [paste figures and where each came from]. Write the market analysis using only these figures. Cover the target segment, the competitive landscape, and our positioning. Anything that needs a number I haven't given you gets [NEEDS DATA].
Here's what that looks like when the guardrail is working:
Target market. Lincoln Park has a large population of students and young professionals, including [NEEDS DATA: number of remote workers within 1 mile]. DePaul University sits inside the neighborhood, giving a steady weekday student base of [NEEDS DATA: enrollment].
Competition. Within a half-mile radius there are two Starbucks locations and one independent café. Based on your visits, none offers a quiet, laptop-friendly environment, and the independent café's average drink price is $5.75.
Positioning. We'll compete on environment and quality rather than price, with a target average ticket of [NEEDS DATA: your planned average ticket].
Every red flag is a lookup task, not a hole. Fill them in, then ask Claude to revise.
Organization and management
Draft the organization and management section. Two co-founders: [name], operations, [background]; [name], marketing, [background]. Explain who owns which decisions and why our backgrounds fit this business. Be specific, not flattering.
Products or services
Write the products and services section. Here's our menu and pricing: [paste]. Explain the offering, the pricing logic, and how it serves remote workers and students.
Marketing and sales strategy
Draft the marketing and sales strategy. Our channels are [list them]. Tie each one to where our target customers actually spend time, and include a launch plan for the first three months after opening, with a rough budget per channel using only the numbers I give you.
Operations plan
Write the operations section: location, hours, suppliers, staffing per shift, and what a normal day looks like. Keep it concrete enough that a lender can picture the business running.
Financial projections
Claude can build the structure and explain the assumptions, but you own the numbers. Start by having it interview you:
Help me build the financial section for a bank loan. List every line item a lender will expect: startup costs, monthly operating expenses, revenue projections, break-even, and cash flow for the first year. For each one, ask me the questions you need answered. Don't fill in any figures yourself.
Once you have answers, Claude can create an actual Excel file (opens in a new tab) with working formulas, so you're not copying numbers by hand:
Build a downloadable Excel workbook with three tabs: startup costs, a 12-month operating budget, and a 3-year revenue projection. Use formulas, not hard-coded totals. Put every assumption (average ticket, customers per day, rent, wages) in a clearly labeled inputs section at the top so I can change it.
A startup-cost table for the coffee shop might start like this. These are placeholder numbers to show the structure. Replace every one with your own quotes.
| Startup cost | Amount | Source |
|---|---|---|
| Espresso machine and grinders | $22,000 | Supplier quote |
| Build-out and furniture | $45,000 | Contractor estimate |
| Lease deposit (2 months) | $12,000 | Draft lease |
| Opening inventory | $6,000 | Supplier quote |
| Licenses and permits | $2,500 | City of Chicago fee schedule |
| Working capital (3 months) | $32,500 | Operating budget tab |
| Total | $120,000 |
Keep a "Source" column. A lender will ask where every figure came from, and so should you.
Executive summary
Write this one last, even though it appears first:
Now write a one-page executive summary based on the full plan we've built. Lead with what the business is, who it serves, how much we're asking for, and how we'll repay it. Confident, but no hype.
Step 4: Have Claude attack the plan
Once the draft is complete, switch Claude from writer to critic. This is the most valuable prompt in the whole process:
Read this plan as a skeptical bank loan officer. What are the three weakest points? What questions would you ask that this plan doesn't answer? Then check that the narrative and the financials agree: flag any place where the text describes staff, prices, or costs that don't match the spreadsheet. Be blunt.
Read this plan as a skeptical bank loan officer...
Three weakest points
- Revenue depends on one untested number. Projections assume 180 customers a day from month two. There's no evidence for that figure: no comparable café's traffic, no foot-traffic count.
- Thin cash cushion. Three months of working capital is tight if the ramp-up is slower than planned.
- No hospitality experience on the team. The management section should show who has run a café or how you'll cover that gap.
Mismatch found: the operations section staffs two baristas per shift, but the operating budget only includes wages for one.
Fix what it finds, then run the same prompt again until the answers are things you can defend.
Step 5: Tighten and format
Edit the full plan for consistent tone and terminology. Cut anything repetitive. Make sure every section supports the goal of securing the loan. Then give me a clean version as a Word document.
Claude can export the final plan as a .docx or PDF, so you can hand it straight to a lender.
The one rule: verify every fact and number
This is where people get burned. Anything in your plan that's a fact (market size, growth rate, competitor pricing, a statistic) must come from you and be checked against a real source. That's true even with web search turned on. Claude is very good at making a number sound authoritative whether or not it's true. Use it for the words, the structure, and the critique. A plan with one invented statistic loses credibility the moment a lender catches it.
Claude or dedicated business plan software?
Claude is a general-purpose assistant. Dedicated planning software is built for this one job. Here's how I'd choose:
| Claude | LivePlan | Free template (SBA, SCORE) | |
|---|---|---|---|
| Drafting and rewriting | Excellent | Built-in AI assistance | You write it |
| Financial forecasts | Builds a spreadsheet you set up and check | Linked income statement, cash flow, and balance sheet | You build it |
| Plan review for lenders | Use the prompt above | Built-in plan review | None |
| Pitch deck | Can create one from your plan | Built-in, synced to plan data | None |
| Flexibility | Any business, any format | Structured around standard plans | Fixed |
If you're comfortable steering a conversation and building your own spreadsheet, Claude plus the prompts on this page will get you a strong plan. If you want the financial statements connected for you, plan review built in, and a pitch deck that updates with your numbers, LivePlan (opens in a new tab) from Palo Alto Software is the tool I recommend people look at. It's been around for years and has served a lot of small businesses. Check their site for current pricing.
Plenty of owners use both: Claude to think through the business and draft the words, then a planning tool for the polished financials and the final package.
A starting prompt you can copy
Paste this to start a new plan:
You are an experienced small business advisor. I'm going to describe my business, and I want your help writing a business plan to [goal]. First, ask me up to eight questions to fill in anything you need to know. Then outline the plan, and we'll build it one section at a time; wait for my review before moving to the next section. Never invent statistics, prices, or market figures. If a section needs data I haven't provided, write [NEEDS DATA: what's missing]. When we finish, review the whole plan as a skeptical lender and check that the narrative matches the financials. Here's my business: [describe it in detail].
Frequently asked questions
Can Claude write a business plan?
Yes. Claude is well suited to writing a business plan because a plan is mostly structured writing and reasoning. Give it detailed context about your business, then build the plan one section at a time, reviewing each section before moving on. You supply and verify all the real data, and Claude handles the structure, drafting, and critique.
Is it safe to use AI for a business plan?
Yes, as long as you treat Claude as the writer and thinker, not the source of facts. It can produce confident but incorrect numbers, even when web search is on. Supply real market data and financial figures yourself, check every statistic against a primary source, and review the tool's data policies before pasting sensitive financial information.
How do I stop Claude from making up statistics in my plan?
Tell it explicitly: give it the real figures you've gathered, tell it to use only those, and have it write [NEEDS DATA] wherever it's missing a number instead of inventing one. Then verify every remaining fact against a primary source before you finalize. This turns data gaps into a checklist instead of fiction.
Can Claude make the financial projections spreadsheet?
Yes. Claude can create a downloadable Excel file with working formulas, such as startup costs, a monthly operating budget, and multi-year revenue projections. Put every assumption in a labeled inputs section so you can change it. The numbers themselves should come from your quotes, your research, or your accountant.
Should I use Claude or LivePlan for my business plan?
Use Claude if you're comfortable guiding a conversation and checking your own spreadsheet; it's flexible and works for any business. Use dedicated software like LivePlan if you want linked financial statements, built-in lender-style plan review, and a pitch deck that stays in sync with your numbers. Many owners draft with Claude and finalize in a planning tool.
How long does it take to write a business plan with Claude?
With your context and data ready, you can produce a solid first draft in an afternoon. Gathering and verifying the real market and financial data usually takes longer than the writing, so budget your time there. The writing itself, with Claude, is fast.
Keep going
Writing a business plan is one workflow. The same skills (giving Claude context, building output section by section, and reviewing as you go) apply to proposals, reports, SOPs, and most of the writing a small business runs on. The free Claude Cowork course teaches exactly that, with real prompts and nine real-world scenarios built for owners and operators. It's a free download.
If the financial section is where you get stuck, the Financial Modeling and Budget Analysis course walks through building forecasts and budgets with AI step by step. It's included in the complete course bundle.
Related guides: Claude AI for small business · How to write a system prompt for your business · Claude Projects explained