The One Page Business Plan Prompt: Turn Your Idea Into Something You Can Actually Decide On
The classic business plan stopped being a decision tool and became homework. You write forty pages to show a bank or an investor, then it sits in a drawer. The surface problem is 'I don't have a plan.' The real problem is 'I've been carrying this idea around so loosely in my head that I can't even explain it to myself, so I don't know whether to keep going or walk away.' This prompt doesn't produce a formal document. It compresses your idea down to one page and lines up the problem, the solution, the customer, the revenue model, the channels, and the cost items side by side, so the moment two pieces don't match, you see exactly where the idea is weak. The goal isn't to convince anyone else. It's to find out whether you've convinced yourself.
You're an experienced startup strategist. Your expertise: compressing a scattered business idea into a decision table you can take in at a glance, not a forty page formal document. Your job is NOT to dress up the idea or approve it; it's to line up the problem, the solution, the customer, the revenue model, the channels, and the cost items side by side and make the contradictions between them visible. This isn't a pitch document. It's a mirror you hold up to ask yourself "does this business actually make sense." I'll give you: - [IDEA: what I want to build, describe it raw, order and clarity don't matter] - [WHAT I HAVE: product, skills, capital, network, time, whatever applies] - [TARGET MARKET/REGION: if any] - [WHAT I'M DOING RIGHT NOW: is this full time, a side project, or still just an idea] - [WHAT I'M UNSURE ABOUT: which part of the idea you doubt, which assumption you haven't tested] GIVE THE OUTPUT IN THIS ORDER, WITH THESE EXACT HEADINGS: ═══ PROBLEM ═══ Who has what concrete problem. Not a generic sentence, an actual moment a real person runs into in their day. How are they solving this today, what lacking/expensive/slow workaround are they living with. ═══ SOLUTION ═══ How you solve this problem, one paragraph. Not a feature list, outcome focused. State the difference from existing solutions in one sentence. ═══ CUSTOMER ═══ Who you're selling to, defined as narrowly as possible. Don't accept a broad definition like "everyone" or "women," and don't produce one either. Think about whether you can genuinely reach this customer for your first fifty sales, not some imagined wide audience. ═══ REVENUE MODEL ═══ How you make money: one-time sale, subscription, commission. Pricing logic in one sentence. Question yourself on whether this model actually matches the customer profile. ═══ CHANNEL ═══ How you'll reach the customer, the 2 most realistic channels. Not the ones you wish you had, the ones you actually have access to today. One sentence of reasoning per channel: "why I'll find this customer here." ═══ COST ITEMS ═══ The 4 to 6 recurring items it takes to keep the business running (production, ads, shipping, platform fees, that kind of thing). Don't make up numbers, the item name and type is enough; flag which one is the most variable or risky. ═══ FIRST 90 DAYS ═══ Concrete, sequential actions split into three blocks: month 1, month 2, month 3. Each month builds on the one before; validate in month 1, land the first real sale in month 2, test repeatability in month 3. ═══ WEAK POINT FLAG ═══ Which of the boxes above contradicts another, or which assumption hasn't been tested at all yet; say it honestly. This section needs to contain at least one real risk, don't settle for "everything looks fine." RULES: - DO NOT use made-up market size, made-up numbers, or made-up customer counts. If the information wasn't given, leave a placeholder. - Don't praise the idea or tear it down; just fill in the boxes and surface the contradiction. - If the input is missing something, ask a clear question before assuming. - Keep every section to 3-4 sentences or bullet points at most; this is a compression exercise, not a long report. - Never skip the weak point flag; every idea has at least one real risk, finding it is this prompt's job. - Write in plain, decision-focused English.
How to use it
- Describe the idea in its raw form: what problem you're solving, who you're selling to, how you plan to make money, dump it all out, order and polish don't matter. Flag the parts you haven't figured out yet with 'not sure about this one' instead of hiding them.
- Run the prompt and read every box in the output one at a time. The second you notice one box contradicting another, stop there. Usually the problem statement and the revenue model don't line up, and that's the weakest point in the idea.
- Put the first three items from the First 90 Days section on this week's calendar. A plan that stays on paper is useless, and an idea doesn't get clearer until the first step actually happens.
Example / tip
Input: The idea is launching a sub-brand of handmade natural soap for sensitive and allergy-prone skin, sold through an online storefront; production is already sorted, marketing is empty. AI output (shortened): Problem, customers with sensitive skin don't trust existing natural soap brands because the ingredient list is never clear. Solution, a sub-brand sold with a one-page ingredient transparency card for every product. Customer, adults with eczema or allergy-prone skin who have already switched products at least once. Revenue model, per-unit sales plus a 3-month repeat-order subscription. First 90 days, weeks 1 to 2 lock the content card format, weeks 3 to 4 list the first batch of ten products, month 2 research a dermatologist-approved label. Weak point flag, the repeat-order subscription assumption hasn't been tested yet, validate with one-time sales first.
Usage example
Copy the prompt as is, fill in the bracketed fields for your own business, and paste it into ChatGPT or Claude. The more concrete your input, the more useful the output. Take the first draft, ask for a one-sentence fix on whatever you don't like, then give it a final pass in your own voice.
When not to use it
This prompt is a decision-clarifying tool, not a substitute for the formal, detailed business plan or financial projections you'd present to an investor. If your situation requires a corporate loan or grant application, you'll need to prepare the official format that institution asks for separately.
Output quality checklist
- Is the problem statement real and specific, or just a generic line anyone could say?
- Does the revenue model actually match the customer profile, or does one contradict the other?
- Are the First 90 Days items concrete enough to start this week?
- Did the AI overstate its own confidence and decide for you, or did it ask a real question?
