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Writing a Business Plan for Funding

GrantsLast reviewed: 1 April 20256 min

A strong business plan is required for most business funding applications — whether you are applying for a grant, a Start Up Loan, or seeking angel investment. A well-written plan demonstrates that you understand your market, have a viable model, and can manage the money responsibly. This guide covers what funders look for and how to structure your plan effectively.

Key points

  • Different funders have different priorities: grant funders focus on public benefit and outputs; investors focus on returns and scalability.
  • A business plan for funding must include financial forecasts covering at least three years.
  • The executive summary is the most important section — many funders read only this before deciding whether to continue.
  • Evidence of customer demand — letters of intent, pilot sales, market research — significantly strengthens any application.

Business Plan Structure for Funding

A business plan for funding purposes typically includes the following sections: an executive summary (one to two pages), a business overview covering your product or service, legal structure, and trading history, a market analysis covering your target customers, competitors, and market size, a marketing and sales strategy, an operations plan covering how you will deliver your product or service, a management team section, and detailed financial forecasts.

The executive summary should be written last but placed first. It must convey what the business does, why it will succeed, how much funding you are seeking, and what it will be used for — all in under two pages. Many funding decision-makers read only the executive summary before deciding whether to proceed. Get it right and make it compelling.

For grant applications specifically, include a section on social and economic impact — jobs created, local supply chain spending, environmental benefits — as this is typically how grants are assessed. For loan applications, demonstrate your ability to service debt from projected cash flow. For investor pitches, focus heavily on market size and growth trajectory.

Financial Forecasts

Financial forecasts are the most scrutinised part of any funding application. You should provide a profit and loss forecast, a cash flow forecast, and a balance sheet forecast for at least three years, with monthly detail for the first year. For grant applications, you will often also need a specific project budget showing exactly how the grant funds will be spent.

Your assumptions must be explicit and defensible. Funders are highly suspicious of hockey-stick revenue projections with no underlying justification. Show your workings — how many customers, at what price, acquired at what rate — and demonstrate that your pricing, margin, and cost structure are consistent with others in your industry. Base your projections on bottom-up analysis (building up from individual customer or order assumptions) rather than top-down market-share claims.

Cash flow is as important as profitability. A business can be profitable on paper but run out of cash if customers pay slowly or if investment is needed before revenue arrives. Funders look for realistic assumptions about payment terms, seasonal patterns, and working capital needs. Show that you understand the difference between profit and cash, and that you have planned accordingly.

Common Business Plan Mistakes

The most common reason funding applications fail is an inadequate business plan. Frequent mistakes include: over-optimistic projections not supported by evidence; vague use of funds — funders want to know exactly what the money will be spent on; ignoring competition — claiming no competitors exist is a red flag; no evidence of customer demand — assertions about the market without any evidence of actual customers or interest; and poor presentation that makes the plan difficult to read.

Tailoring your plan to each funder is important. A generic plan that has not been customised to the funder's priorities will rarely succeed. Read the funder's criteria carefully and ensure your plan addresses each criterion directly. For grants, use the language of the funding body's outcomes framework. For investors, emphasise return on investment and exit strategy.

Frequently asked questions

How long should a business plan be?
For most funding purposes, 15–30 pages is appropriate, plus financial appendices. Investors often prefer a shorter deck (10–15 slides) with a more detailed document available on request. Grant bodies specify their requirements in the application guidance — follow their format and word limits exactly.
Do I need an accountant to prepare financial forecasts?
Not necessarily, but it helps. For Start Up Loans and many grant applications, delivery partners and advisors provide free help with financial forecasting. For investor applications or larger grant applications, using an accountant or financial modeller to build robust forecasts is worth the cost and adds credibility.
Can I use AI tools to write my business plan?
AI tools can help structure and draft sections of a business plan, but the underlying knowledge about your business, market, and financial assumptions must come from you. Funders and investors quickly spot generic AI-generated content. Use AI as a drafting aid, not a replacement for genuine business analysis and real market knowledge.

What to do next

  1. 1
    Download a Start Up Loans business plan template

    Free business plan and cash flow forecast templates from the British Business Bank.

  2. 2
    Get free business planning support

    Local Growth Hubs offer free business planning advice and signposting to funding.

  3. 3
    Read the grant application checklist

    Ensure your grant application is complete and well-evidenced.

Official bodies and resources

Companies House

Government

Incorporates and dissolves limited companies, registers company information, and makes it available to the public.

HM Revenue & Customs

Government

Responsible for collecting taxes, paying some forms of state support, and administering national insurance.

Citizens Advice

Charity

Provides free, confidential, and independent advice on a wide range of issues including benefits, housing, debt, and employment.

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Disclaimer

This information is for general guidance only and does not constitute legal advice. You should seek qualified legal help if your situation requires it.