How to Write a One-Page Business Plan (And Why It Beats a 40-Page One)

Long business plans are mostly written for banks and investors, and many of them are never opened again. A one-page plan is written for you. Because there is no room for padding, it makes you commit to clear answers about the customer, the offer and the numbers. You can expand it into a longer document later if a lender asks; the thinking is the hard part.

The eight sections

1. The problem

One or two sentences describing the problem your customers have, in their words. "Small restaurants waste hours each week reconciling supplier invoices by hand" is a problem. "We help businesses grow" is not.

2. The customer

Describe the specific group you will serve first. Include who they are, where they are and how they currently solve the problem. A narrow first customer is a strength: it tells you where to advertise and what to build.

3. The offer

What exactly you will sell, and the outcome the customer gets. Focus on results ("invoices matched in minutes") over features ("AI-powered OCR").

4. Pricing and revenue model

How you charge (one-off, subscription, per project, retainer) and roughly how much. Our guide to pricing a service business covers the three main approaches.

5. Channels

How customers will find you and buy: referrals, search, partnerships, a sales visit, a marketplace. Pick two at most to start. Each channel takes real effort to make work.

6. Competition and your difference

List the realistic alternatives, including "do nothing" and "use a spreadsheet". Then state in one sentence why a customer would choose you instead.

7. Key numbers

Startup costs, monthly fixed costs, the price and cost of one sale, and how many sales you need each month to break even. Break-even is simply fixed costs divided by the profit you make on each sale.

8. Milestones for the next 12 months

Three to five concrete milestones with dates: first paying customer, ten customers, first hire, a product launch. Milestones turn the plan into something you can check against.

A worked break-even example

Suppose a bookkeeping service charges a monthly fee of 300 per client, and the direct cost of serving each client (software, a few hours of contractor time) is 120. Each client contributes 180 towards fixed costs. If fixed costs such as rent, insurance and the founder's minimum salary come to 3,600 a month, the business needs 3,600 ÷ 180 = 20 clients to break even. Writing that single number down changes how you think about marketing.

These figures are an illustration; use your own costs and prices.

Test the plan before you trust it

• Talk to ten potential customers about the problem before building anything. See our guide to running customer interviews.
• Look for evidence of payment: pre-orders, deposits, letters of intent or a pilot.
• Stress-test the numbers: what happens if sales take twice as long or costs are 20% higher?
• Plan cash, not just profit. Many profitable businesses still run short of money; our article on cash flow versus profit explains why.

When you need a longer plan

Banks, investors and grant programmes may ask for a traditional plan with market analysis, management bios and three-year projections. The U.S. Small Business Administration's guide to writing a business plan describes both traditional and lean formats. Start with your one page; each section expands naturally into a chapter.

Keep it alive

Put the page somewhere visible and review it every quarter. Cross out what turned out to be wrong and write what you learned. A plan that changes is a plan that is being used.