How to write a simple one-page business plan

Somewhere along the way, “business plan” came to mean a 40-page document with market analysis, five-year projections and a SWOT grid nobody ever reads again. Banks used to ask for them. Some accelerators still do.

If you’re a solo founder, freelancer or maker, you almost certainly don’t need that. A long plan mostly gives you the feeling of progress without any of the actual progress. What you need is one page you’ll genuinely use.

Why one page beats forty

A short plan forces clarity. If you can’t explain who you sell to and how you make money in a paragraph, more pages won’t fix it, they’ll just hide it.

A one-page plan is also honest about how early businesses work: you learn by doing, and half your assumptions turn out wrong in the first few months. A giant document you spent two weeks on is painful to change. A single page, you’ll happily rewrite.

The goal isn’t to impress anyone. It’s to make your own thinking sharp enough to act on.

The six things your plan needs

Grab a notepad or a blank document. Answer these six questions in plain sentences. Don’t polish, just answer.

1. What you sell

What’s the actual product or service? Describe it like you’re telling a mate, not writing a brochure. “I make ceramic mugs.” “I do bookkeeping for small cafes.” “I flip vintage denim.” If it takes three sentences, it’s probably two things, and you should pick one to lead with.

2. Who you sell it to

Be specific. “Everyone” is not a customer. “Women in their 30s who like homeware” is closer. “People setting up their first flat who want one nice object” is better still. The narrower you go, the easier everything else gets, because you know exactly who you’re talking to and where to find them.

3. How you reach them

Where do these people actually spend their attention, and how will they find you? Instagram, car boot sales, word of mouth, a market stall, Google, a mailing list. Pick one or two realistic channels to start. You cannot be everywhere, and trying to be is how solo founders burn out.

4. Pricing

What do you charge, and does it clear your costs with something left over? Write the actual number. Then sanity-check it against what customers currently pay for similar things. Underpricing is the most common mistake early on: you’re not just covering materials, you’re covering your time, fees, returns and the quiet hours doing admin.

5. Costs

List what it costs to make and sell one unit, and what it costs you per month just to exist (software, subscriptions, storage, travel). You don’t need a spreadsheet with 40 rows. You need to know your rough numbers well enough that you’re never surprised. If money going out is a mystery, that’s the first thing to fix.

6. The goal

One number, one timeframe. “£1,000 a month within six months.” “Ten regular clients by Christmas.” “Break even by month three.” A goal you can measure tells you whether the other five answers are actually working, or whether something needs to change.

That’s it. Six answers, one page.

Keep it living, not framed

Here’s the part most advice skips. A plan isn’t a thing you write once and file away. It’s a working document, and it’s only useful if it changes as you learn.

Set a recurring nudge, monthly is plenty, to reread your one page and ask three questions:

• What did I get wrong last month?
• What’s actually working that I should do more of?
• Does my goal still make sense, or has reality moved?

Then edit the page. Cross things out. Change the target. That’s not failing to stick to the plan, that’s the plan doing its job.

The businesses that last aren’t the ones with the tidiest original plan. They’re the ones that noticed reality drifting from the plan and adjusted quickly.

Where to keep it

Keep your plan somewhere you’ll actually see it, next to where you track your real numbers. A plan sat in one app while your customers, invoices and money live in another tends to get forgotten. A tool like keeps the plan and the day-to-day running of the business in one private place, which makes that monthly check-in a two-minute job rather than a chore.

Wherever you keep it, the rule holds: one page, honest numbers, and a habit of revisiting it. That beats a beautiful document you never open again.