Simple Business Planning for Sole Traders: A Practical Template

When someone says "business plan," most sole traders picture a fifty-page document with charts, projections, and executive summaries. The kind of thing you write to impress a bank manager or investor, then shove in a drawer and never look at again.

That is not what this guide is about.

Most sole traders do not need external funding. They do not need to impress venture capitalists. What they need is a practical, honest tool that helps them earn enough money, manage their costs, plan for tax, and grow sustainably. That can fit on a single page.

A simple business plan is not about formality. It is about clarity. It forces you to answer the questions that determine whether your business will succeed or quietly drain you of energy and money.

Why Bother Planning at All?

The most common objection to business planning from sole traders is: "I am too busy actually doing the work to sit and plan."

Fair enough. But consider how many sole traders hit December and realise they have no idea what they earned, how much tax they owe, or whether their business actually made a profit. Consider how many work sixty-hour weeks only to take home less than the minimum wage once expenses and tax are deducted. Consider how many stumble into VAT registration unprepared, miss tax deadlines, or never raise their prices because they have no framework for deciding when to.

A business plan prevents all of this. Not a long one. Not a perfect one. Just an honest assessment of where you are, where you want to be, and what you need to do to get there.

The One-Page Business Plan Template

Here is the template. You can write this in a notebook, a spreadsheet, or a document. The format does not matter. The thinking does.

Section 1: Revenue Target

Start with what you want to earn this year. Not revenue — take-home income after tax, National Insurance, and business expenses.

Write down three numbers:

• Minimum: the least you need to earn to cover your personal costs (rent, bills, food, essentials)
• Target: what you would like to earn for a comfortable life, including savings and some discretionary spending
• Stretch: what you would earn in a great year — ambitious but achievable

Now work backwards. If your target take-home is £40,000, you need roughly £48,000 in profit to cover Income Tax and National Insurance. Add your business expenses (say £5,000), and you need approximately £53,000 in revenue.

Break that down:

• Monthly: approximately £4,417
• Weekly: approximately £1,020
• Daily (based on 220 working days): approximately £241

Now you know what your business needs to bring in per day, per week, and per month to hit your target. This single calculation is more valuable than most fifty-page business plans.

Section 2: How You Will Earn It

Write down your income sources. Most sole traders have one primary service, but you might have two or three. For each one, note:

• Service/product: what you sell
• Typical price: what you charge per unit, hour, day, or project
• Volume needed: how many sales, clients, or billable days you need per month to hit your target

This forces you to confront whether your pricing and capacity can actually deliver your revenue target.

For example, if you are a freelance graphic designer charging £350 per day and you need £53,000 revenue, you need approximately 151 billable days per year. With holidays, admin, and quiet periods, that might mean four billable days per week for 38 weeks. Is that achievable given your current client pipeline? If not, you either need more clients, higher prices, or an additional income stream.

Section 3: Expense Budget

List your business expenses by category. Be thorough but realistic. Common categories for sole traders include:

• Software and subscriptions
• Insurance
• Phone and internet
• Travel and mileage
• Professional development and training
• Marketing and advertising
• Equipment and tools
• Accountancy fees
• Office supplies
• Subcontractor costs (if applicable)

For each category, note your expected annual spend. Total them up. This is your overhead — the amount you need to earn before you start making profit.

Most sole traders underestimate their expenses because they do not track them systematically. If you are not sure what you spent last year, check your bank statements. The real number is often 20% to 30% higher than the number in your head.

Section 4: Tax Provision

This is the section most sole traders skip, and it is the one that causes the most financial pain.

Based on your target profit (revenue minus expenses), estimate your tax liability:

• Income Tax: approximately 20% on profits between £12,570 and £50,270 (basic rate for 2025/26)
• Class 2 National Insurance: approximately £3.45 per week (£180 per year)
• Class 4 National Insurance: 6% on profits between £12,570 and £50,270, 2% above that
• Payments on account: HMRC will ask for advance payments towards next year's tax if your bill exceeds £1,000

A rough rule of thumb: set aside 25% to 30% of your profit for tax. Write down the total amount and divide by 12. That is how much you should be transferring to a separate tax savings account each month.

If your revenue is approaching £90,000, you also need to plan for VAT registration and the impact on your pricing.

Section 5: Growth Actions

This is the forward-looking section. Write down three to five specific actions you will take this quarter to grow or improve your business. These should be concrete and measurable, not vague aspirations.

Good examples:

• "Raise my day rate from £350 to £400 for all new clients from 1 April"
• "Approach five new potential clients this month via LinkedIn"
• "Launch a website or update my portfolio by end of February"
• "Complete a professional certification by June"
• "Introduce a new service offering (e.g., retainer packages) by Q2"

Bad examples:

• "Get more clients"
• "Earn more money"
• "Be more organised"
• "Maybe think about marketing"

Specificity matters. "Get more clients" is a wish. "Contact three recruitment agencies and attend two networking events this month" is a plan.

Section 6: Quarterly Review

A business plan that is never reviewed is just a piece of paper. Set a quarterly review date — one hour, four times a year.

In each quarterly review, ask yourself:

• Am I on track for my revenue target?
• Are my expenses in line with my budget?
• Have I set aside enough for tax?
• Which growth actions did I complete? Which did I miss?
• What needs to change for next quarter?

Write down your answers. Adjust your targets and actions accordingly. This simple review cycle keeps your plan alive and relevant.

A Worked Example

Let us put this together for a fictional sole trader: Sarah, a freelance copywriter.

Revenue target: £45,000 take-home. Working backwards: needs approximately £55,000 revenue.

Income sources:

• Copywriting projects: £500 average per project, needs 8 projects per month
• Monthly retainer clients: 2 clients at £1,200 per month = £2,400
• Total monthly target: approximately £4,400 from projects + £2,400 from retainers = target met with a small buffer

Expense budget:

• Software (writing tools, project management): £600/year
• Insurance (PI): £200/year
• Phone and internet: £720/year
• Travel: £500/year
• Marketing (website, LinkedIn premium): £400/year
• Accountancy: £500/year
• Training and books: £300/year
• Total: £3,220/year

Tax provision: On £51,780 profit, approximately £10,500 in Income Tax and NI. Monthly tax saving: £875.

Growth actions (Q1):

1. Raise project rate from £500 to £550 for new clients
2. Pitch to three new retainer prospects
3. Update website portfolio with recent case studies
4. Attend one industry event per month

Quarterly review date: 31 March

That is it. One page. Clear, actionable, and directly connected to the numbers that determine whether Sarah's business works.

Common Mistakes to Avoid

Being Too Optimistic About Billable Time

You do not bill for every hour you work. Admin, marketing, networking, invoicing, bookkeeping, and learning all take time. A realistic sole trader bills 60% to 70% of their available working hours, not 100%.

Ignoring Seasonality

Most businesses have quiet periods. If you work in events, summer is busy and January is dead. If you freelance for corporates, August and December are slow. Factor these patterns into your revenue forecast rather than assuming even monthly income.

Not Reviewing

A plan that sits in a drawer is worthless. The review is the most important part. Schedule it, stick to it, and be honest with yourself about what is working and what is not.

Overcomplicating It

If your business plan takes more than an hour to write, you are overthinking it. Perfection is the enemy of action. A rough plan that you actually use beats a polished plan that you ignore.

Let Accounted Give You the Numbers You Need

A good business plan starts with accurate numbers. Accounted gives you real-time visibility into your income, expenses, and profit — so when you sit down to plan, you are working with facts, not guesses. Penny, your AI bookkeeper, categorises your transactions automatically, tracks your expenses by category, and helps you see exactly where your money is going. Start your free trial and build your business plan on solid ground.

Related Reading

• Cash Flow Management for Sole Traders: How to Never Get Caught Short

• When Should a Sole Trader Become a Limited Company?

• Do I Need an Accountant as a Sole Trader? Honest Answer for 2026

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