One-Page Business Plan Template for UK Start-Ups

A one-page business plan should help you make decisions, not make an uncertain idea look more impressive. I would use it to record who the business is for, what it will sell, how customers will find it, how the work will be delivered, what the numbers assume and what I need to learn next.

Download the editable one-page business plan template. It is a plain-text file, so you can open it in any text editor or paste it into your usual document tool. The complete template and a fictional example also appear below.

When a one-page business plan is enough

A one-page plan is useful when you are testing or running a small business and need one current view of the next 90 days. It can help you:

• turn customer evidence into a defined offer;
• connect sales activity to delivery capacity;
• expose an assumption before it becomes an expensive commitment;
• give each next action an owner and due date; and
• decide whether to continue, change, pause or stop.

It is not a substitute for the documents requested by a lender, investor, grant provider, regulator or business partner. GOV.UK says a business plan normally covers objectives, strategies, sales, marketing and financial forecasts, and that one is needed when seeking investment or a bank loan. If an organisation gives you a required format, use that format.

For a detailed finance application, use the relevant official or provider template as well. Start Up Loans, for example, separates its business plan and cash-flow information and asks applicants for specific supporting documents. My one-page version is an internal working plan, not an application shortcut.

Start with evidence, not adjectives

Before writing the plan, collect what you already know. I would bring together:

• notes from recent customer conversations;
• examples of what people use or pay for now;
• a clear description of the smallest honest offer;
• the available delivery time or stock;
• known one-off, direct and recurring costs; and
• any rule, registration, permission or dependency that could delay trading.

If you have only compliments and guesses, go back to the business idea test before filling the page with confident language. Write unknown where evidence is missing. An honest blank is more useful than an invented market fact.

The one-page business plan template

THE COVEN GIRL GANG
ONE-PAGE BUSINESS PLAN TEMPLATE

Use this as a working plan for the next 90 days. Replace every prompt with a short, specific answer. If you need finance, investment or formal approval, use the fuller format required by that organisation as well.

Business or working name:
Plan owner:
Version date:
Review date:

1. 90-DAY OUTCOME
What must be measurably different in 90 days?

2. CUSTOMER
Who has the problem, buys the solution and influences the decision?
What evidence shows that this is a real group you can reach?

3. PROBLEM AND EVIDENCE
What happens now?
What does the problem cost in time, money, risk or missed opportunity?
What have people already tried?
Evidence source and date:

4. OFFER
What will you deliver?
What is included and excluded?
What will it cost, and when will the customer pay?

5. ROUTE TO A SALE
Where will suitable customers find or hear about the offer?
What is the next action you want them to take?
What weekly activity will you control?

6. DELIVERY AND CAPACITY
What are the main delivery steps?
How much time can you actually sell or use each week?
What input, permission, stock, equipment or specialist help is required?

7. MONEY
Monthly sales assumption:
Direct costs:
Regular overheads:
One-off costs:
Cash needed before customers pay:
Tax or VAT amounts to keep separate:
Financial assumption that needs checking:

8. RISKS AND RESPONSES
Risk 1 / early warning / response:
Risk 2 / early warning / response:
Risk 3 / early warning / response:

9. NEXT THREE ACTIONS
Action / owner / due date / evidence of completion:
1.
2.
3.

DECISION AT THE REVIEW DATE
Continue, change, pause or stop?
What evidence supports that decision?

1. The 90-day outcome

Write one measurable change that should exist by the review date. It might be a number of paid customers, a delivered pilot, a repeatable service or a verified route to a first sale.

Avoid a goal such as build awareness. State the evidence you expect to see. A stronger version is: Win three recurring clients for the defined monthly service, deliver within the promised turnaround and decide whether the offer is sustainable.

The outcome is a planning assumption, not a public promise. Set a target that makes you test the business without depending on an invented conversion rate.

2. The customer

Describe a group you can recognise and reach. Small businesses is usually too broad. Add the situation that creates the need, the person who buys and anyone who influences the decision.

I would write the evidence beside the description. For example: Three independent consultants described delayed invoicing after busy client weeks in interviews recorded this month. That is more useful than a demographic profile with no buying context.

3. The problem and evidence

Describe what happens now, what people have already tried and why the problem matters. Use past behaviour where possible. Record the source and date so that an old assumption does not quietly become a permanent fact.

Good evidence can include a recent purchase, a manual workaround, a repeated delay, a cost the customer can explain, a relevant enquiry or a paid pilot. None of those guarantees a market, but each is stronger than a hypothetical yes.

Do not copy names, sensitive details or entire interview transcripts into the plan merely because you collected them. Keep only what the business needs, store it appropriately and set a deletion point. The ICO's data-protection principles include purpose limitation, data minimisation, storage limitation and security.

4. The offer

State the deliverable, scope, price and payment point in plain English. Add exclusions where a reasonable buyer might otherwise expect more.

For a service, include the outcome, the work, the client's inputs, the delivery rhythm and what triggers extra work. For a product, include the item or range, order method, fulfilment promise, returns assumptions and stock constraint.

The price in the plan is an assumption until real sales and delivery evidence support it. Keep a note of what would make you revise it.

5. The route to a sale

Choose a route that can reach the customer you described. Record the next action you want that person to take and the weekly activity you control.

Post on social media is not a complete route. A clearer version is: Publish one useful workflow example, ask five relevant professional contacts for introductions and invite suitable prospects to a short fit call.

Follow the relevant privacy and marketing rules for the channel you use. A plan does not create permission to add interviewees or contacts to a marketing list.

6. Delivery and capacity

Map the few steps that turn a sale into a completed outcome. Include client inputs, stock, access, approvals, quality checks and payment conditions.

Then calculate the real capacity. If you have 40 delivery hours per month and each client uses eight, five clients fill that delivery capacity before sales, administration, corrections and time off are considered. Do not set a sales target that the delivery plan cannot support.

For client work, the freelance proposal template helps make the scope and fee concrete, while the client onboarding checklist separates agreement from readiness to start.

7. Money

Keep the first version simple enough to check. Record:

• sales assumptions, including quantity and price;
• direct costs that rise with a sale;
• regular overheads;
• one-off costs;
• cash needed before customers pay;
• amounts that may need to be kept aside for tax or VAT; and
• the financial assumption most likely to be wrong.

Do not treat sales as take-home pay. Check the numbers on a cash-flow forecast before taking on finance, premises, stock or long commitments. GOV.UK links to free business-plan and cash-flow templates, and the Start Up Loans template explains the fuller sections expected for its application.

If you are starting with client work, use the first-invoice checklist and template when the agreed work becomes billable.

8. Risks and responses

Choose the three risks that could change the next 90 days. For each one, write an early warning and a response you can actually take.

For example:

A risk list with no trigger or response is only a worry list.

9. The next three actions

Finish with three actions, each with an owner, due date and evidence of completion. Choose actions that reduce uncertainty or move the business towards a real sale.

Examples include:

1. Complete five evidence-seeking customer conversations and record recurring problems.
2. Turn the offer into one paragraph with a price, inclusions and exclusions.
3. Send a tailored proposal to the first suitable buyer and record the decision.

Do not hide a 40-item launch checklist inside the one-page plan. The wider UK business start-up checklist covers structure, registrations, records, protection and the first sale.

Fictional worked example

This example is fictional. Its prices, interview count and thresholds demonstrate the template. They are not market benchmarks, client results or a promise of demand.

Business and outcome

North Star Admin is a fictional solo service for UK independent consultants. Its 90-day outcome is to win three recurring clients for a defined monthly admin service, deliver within the promised turnaround and decide whether the offer is commercially sustainable.

Customer, problem and evidence

The customer is an independent consultant who is already selling client work but loses time to recurring invoice preparation, meeting follow-up and document organisation.

In this fictional example, six research conversations produced four accounts of delayed follow-up or irregular invoicing. Two people described using disconnected notes and spreadsheets. That is early evidence, not proof of demand. The next test is whether suitable prospects will pay for a bounded service.

Offer and route to sale

The offer covers an agreed list of invoice preparation, meeting actions and file organisation for £480 per month, invoiced in advance. It excludes bookkeeping advice, debt collection, inbox access without agreed controls and work outside the monthly task allowance.

The founder will ask professional contacts for relevant introductions, publish one useful workflow example and invite a short fit call. The weekly controllable activity is five relevant conversations or introductions. A proposal is sent only when the problem, work and decision-maker are clear.

Delivery, capacity and money

The delivery steps are onboarding, access check, weekly task list, work block, quality check and monthly review. The founder can make 40 delivery hours available each month. Five clients using eight hours each would fill that delivery capacity, so sales should not continue past five without changing the service or available time.

At five clients, the illustrative monthly sales assumption is:

• 5 clients x £480 = £2,400 sales;
• £20 direct cost per client x 5 = £100;
• £85 regular overheads; and
• £2,400 - £100 - £85 = £2,215 before owner pay, tax and other unlisted costs.

The important assumption is whether eight hours per client remains realistic after onboarding and communication time are included. The arithmetic does not prove that the price is profitable or that five customers will buy.

Risks and next actions

The three risks are expanding scope, delayed client access and dependence on one buyer. The responses are to approve changes before work, record blockers and keep prospecting within capacity.

The next three actions are to finish the offer description, run five more evidence-seeking conversations and send one tailored proposal to a suitable buyer. At the review date, the founder will continue only if at least one suitable customer has paid and the delivery evidence supports the time assumption.

Review the page, then make a decision

Set a review date when you create the plan. At that date, choose one of four decisions:

• continue because the evidence supports the current direction;
• change the audience, offer, route, price or delivery assumption;
• pause because a dependency or capacity problem makes the test unsound; or
• stop because the problem is not important enough or the business cannot deliver it responsibly.

Update the version date when a material assumption changes. Do not rewrite the plan every time a task moves. A one-page plan works when it stays short enough to review and honest enough to challenge.

Common mistakes to avoid

• Writing a slogan where a customer and buying situation should be.
• Calling a compliment proof of demand.
• Copying a market-size figure without checking its relevance or date.
• Forecasting sales without a route to reach buyers.
• Ignoring delivery time, owner time or cash needed before payment.
• Mixing personal data into the document without a clear purpose.
• Treating the page as a lender-ready finance application.
• Keeping a plan after the evidence that supported it has changed.

Start with the free manual template. You do not need paid planning software for a one-page working plan. A paid tool becomes useful only when collaboration, permissions, linked forecasts, scenario modelling or formal reporting saves more time and risk than it costs.

Spot something that needs correcting? See the corrections process.