Start a Business guide
How to Write a Simple One-Page Business Plan
A practical guide to writing a simple, one-page business plan that focuses on your customer, your offer, and your commercial model.
Published 22 May 2024
The short answer
A simple business plan should focus on four core pillars: the customer problem you are solving, the specific solution you offer, how you will reach those customers, and the commercial model that makes the business sustainable. By keeping the plan to a single page, you force yourself to be clear and concise about what actually matters for your commercial success.
- Focus on clarity over length to avoid hiding weak assumptions
- Define your target customer as specifically as possible
- Outline a clear and sustainable pricing and cost model
- Identify the specific sales activities you will perform weekly
- Treat the plan as a living document to be updated with evidence
The goal of a one-page business plan
The purpose of a one-page business plan is not to satisfy a bank manager, but to provide a clear roadmap for the founder. It acts as a filter for your decisions: if an opportunity or a cost does not align with what is on that page, it should probably be avoided. By restricting yourself to a single page, you are forced to strip away the fluff and focus on the essential commercial logic of your idea.
A one-page plan is also much easier to maintain. In the early stages of a business, your understanding of the market will change rapidly as you talk to customers and test your offer. A long document is hard to update and quickly becomes obsolete, but a one-page plan can be revised in minutes to reflect new evidence. This makes it a practical tool for everyday management rather than a piece of paperwork that sits in a drawer.
Clarity is the ultimate goal. If you cannot explain your business model on one page, it is often a sign that the model itself is too complex or that you do not yet understand it well enough. The discipline of brevity helps you identify the gaps in your thinking before you spend significant money.
Defining the problem and your solution
Every successful business starts with a problem that someone is willing to pay to solve. Your plan should clearly state what that problem is and who has it. Avoid vague descriptions like 'people want better service' and aim for something specific like 'small law firms spend too much time on manual data entry'. The more specific the problem, the easier it is to design a solution that people will actually value.
Your solution should be described in terms of the outcome it provides, not just the features it has. Instead of listing every technical detail of your service, explain how it makes the customer's life better or their business more profitable. A good solution is one that the customer can easily understand and see the value in without needing a long explanation.
Be honest about why your solution is better than the alternatives. This does not always mean it has to be cheaper; it could be faster, more reliable, more specialised, or simply more convenient. If you cannot articulate why a customer would choose you over what they are currently doing, your business model needs more work.
Identifying your target customer and market
A common mistake is trying to target everyone. A one-page plan should define a specific niche where you have the best chance of winning your first customers. This might be defined by industry, company size, geography, or a specific set of circumstances. By narrowing your focus, you can tailor your messaging and your service to be exactly what that specific group needs.
Once you have defined your target customer, explain where they spend their time and how they look for solutions. Do they search on Google? Are they active on specific industry forums? Do they attend certain local events? Knowing this allows you to plan your marketing activities effectively, rather than wasting time and money on broad advertising that might not reach the right people.
Estimating the size of your market is useful context, but for a new business, the most important figure is the number of prospects you can realistically reach and speak to in the next month. Focus on the immediate, accessible market rather than the theoretical total market.
Outlining your commercial model and pricing
The commercial model is how your business actually makes money. Your plan should state your pricing clearly — whether that is a one-off fee, a subscription, or a project-based rate. Explain the rationale behind the price: is it based on the value you deliver, or is it a competitive rate for the sector? Ensure that your price leaves enough margin to cover your costs and your time.
List your main costs, both fixed and variable. This includes things like software subscriptions, insurance, materials, and any subcontracted help. Understanding your break-even point — the number of sales you need each month to cover all your costs — is essential for knowing whether the business is viable. If you need a hundred sales a month just to break even but only have time to deliver ten, the model needs to change.
The Evans Business Builder programme helps founders develop this commercial structure. For nine hundred and ninety five pounds plus VAT per month for twelve months, we work with you to refine your pricing and business model, and provide the website infrastructure to start trading.
Setting your first commercial milestones
A plan is only useful if it leads to action. Your one-page document should end with a small number of specific, measurable milestones for the next three to six months. These should be commercial goals, such as 'complete five customer interviews', 'sign the first paying client', or 'generate ten enquiries from the website'. Avoid vague goals like 'build brand awareness'.
Each milestone should have a clear deadline and a specific owner. For a solo founder, you are the owner, but having the deadline written down creates a sense of accountability. Focus on the activities that are most likely to lead to a sale or provide critical validation for your idea. These milestones are your primary focus; everything else is secondary.
Review these milestones every few weeks. If you are not hitting them, ask why. Is it because the activity is not working, or because you are not doing the work? Use this feedback to adjust your plan. A one-page plan that is regularly updated based on your progress is a powerful tool for building a sustainable business.
This guide is for internal commercial planning; if you are seeking formal finance, you should check if the lender requires a more extensive document structure.
Next step
Not sure which idea to pursue? Use the free tool. Already chosen? Explore Evans Business Builder.