The Business Plan
What Is a Business Plan?
A business plan is a written document that describes what a business intends to do and how it intends to do it. It is both an internal management tool and an external document used to persuade lenders and investors. Without a plan, a new business owner is making decisions based on guesswork; with one, they have a structured framework to test whether the idea is commercially viable before committing large sums of money.
A complete business plan includes: the business idea; business aims and objectives; target market (market research evidence); forecast revenue, costs and profit; a cash-flow forecast; sources of finance; planned location; and the marketing mix. Each section serves a purpose — together they form a complete picture of whether the business can survive and grow.
Why Write a Business Plan?
There are two main reasons a business plan matters. The first is minimising risk. By forcing the owner to think through every aspect of the business in advance, planning reveals potential problems before they become expensive mistakes. A café owner who models her cash-flow forecast might discover that she would run out of cash in month three without an overdraft — allowing her to arrange one before opening, rather than facing insolvency. The second is obtaining finance. Banks, investors and venture capitalists routinely ask for a business plan before lending money. A well-argued, realistic plan signals that the owner understands their market and can manage money.
The Business Idea and Objectives
The opening section of a plan states the business idea clearly: what product or service is being offered, who it is for, and why it is different from existing competitors. This links directly to business objectives — specific, measurable targets that tell the owner and any investors whether the business is on track. Objectives for a start-up might include “achieve break-even within 12 months” or “reach £50,000 revenue in Year 1.”
The target market section uses market research evidence to demonstrate that customers exist and that the business understands their needs. A start-up that says “anyone aged 18–65” has not done genuine segmentation. A credible plan identifies a specific segment — for example, “health-conscious women aged 25–40 in urban areas” — and provides survey data or competitor analysis to support the claim. Lenders want to see this because unsupported assumptions are the most common reason start-up forecasts fail.
Financial Forecasts
The financial section is often the most scrutinised part of the plan. It should include a forecast revenue figure, a breakdown of fixed and variable costs, and a projected profit or loss. These figures allow the business owner to calculate a break-even point and a margin of safety, giving a realistic sense of how much sales can fall before the business makes a loss.
Alongside the profit forecast, the plan must include a cash-flow forecast. This is essential because a profitable business can still run out of cash — for example, if customers pay 60 days after delivery but suppliers demand payment in 30 days. The cash-flow forecast helps the business owner identify these gaps in advance and arrange short-term finance (such as an overdraft) before the crisis hits.
Cash and profit are not the same thing. A business can show a profit on paper but run out of cash if money comes in slowly and goes out quickly. The cash-flow forecast in the business plan allows the owner to spot these timing mismatches before they become a crisis. This is one of the most discriminating concepts on the exam.
Sources of Finance and Location
The plan must state how the business will be funded — which sources of finance will be used, how much is needed, and when repayments will be made. This connects directly to the cash-flow forecast: if a bank loan is taken out, the monthly repayment must appear as a cash outflow. The plan should also justify the choice of location, explaining why the site suits the business’s customer base, labour needs and cost structure.
The marketing mix section of the plan describes how the business will attract and retain customers. It covers: the product features and unique selling point; the pricing strategy; how the business will promote itself (social media, local advertising, word of mouth); and where/how customers will buy. Lenders look at this section to assess whether the business has a realistic route to market — a brilliant product with no credible promotion strategy is as much a red flag as weak financials.
Limitations of a Business Plan
A business plan is only as good as the assumptions behind it. If the market research is flawed, the revenue forecast will be wrong. If the owner underestimates costs, the plan will show a profit when the reality is a loss. External changes — a new competitor entering the market, a rise in interest rates, or a drop in consumer confidence — can make even a carefully constructed plan obsolete. This is why plans should be treated as a living document, revised regularly as the business learns from real trading data. A plan that sits in a drawer and is never revisited offers little protection against risk.